Description
MP Safety Clamp for Drill Collars & Flush-Joint Pipe | Drilling & Workover
SGPE MP Safety Clamp, also known as a Multipurpose Safety Clamp or Type MP Safety Clamp, is a mechanical oilfield tool that provides secondary anti-slip restraint for drill collars, flush-joint pipe and compatible smooth-body tubulars during drilling and rig-floor connection handling.
Drill collars and flush-joint tubulars often lack a prominent external shoulder. During connection make-up, break-out and bottom hole assembly (BHA) preparation, crews need reliable primary support and an additional means of resisting unintended pipe movement.
The MP clamp combines hinged steel links, spring-loaded tapered gripping dies and a manual screw-and-nut closure. Its linked body wraps around the tubular, creating several gripping contact points. The tapered dies develop a wedging action that helps resist downward movement during approved handling procedures.
Common MP-S, MP-R, MP-M, MP-L and MP-XL Safety Clamp configurations cover selected pipe outside diameters from 2-7/8 to 30-1/2 in (73.0–774.7 mm). Published assemblies use 7–28 links and 8–29 gripping dies, depending on the model.
Typical applications include drill collar handling, BHA assembly, flush-joint pipe make-up and break-out, drill-string preparation, offshore drilling and selected oilfield workover operations.
SGPE supports enquiries for complete MP-style clamps, compatible spare parts and replacement equipment. Drilling contractors, oilfield service companies and international distributors can request assistance with model selection, technical comparisons and project-specific pricing.
Looking for an MP Safety Clamp for a particular pipe size? Send SGPE the actual gripping OD, required quantity and any existing clamp reference.
Safety Note: Standard non-hoisting MP Safety Clamps provide secondary restraint only. They do not replace qualified primary support equipment or function as independent lifting devices.
Email: info@sgpe.com
Tel / WhatsApp: +86 186-1599-5239
MP Safety Clamp Models: MP-S, MP-R, MP-M, MP-L & MP-XL
The MP family includes five common model series. Each uses a different link arrangement to accommodate specific tubular diameters.
Smaller models address conventional drill collar and flush-joint pipe sizes. Larger configurations support selected large-diameter oilfield tubulars.
MP Safety Clamp Model Comparison
| Model | Published Pipe OD Range | Links | Gripping Dies | Typical Application |
|---|---|---|---|---|
| MP-S | 2-7/8–5 in | 7–8 | 8–9 | Smaller drill collars and flush-joint pipe |
| MP-R | 4-1/2–10-1/2 in | 7–11 | 8–12 | Common drill collar handling |
| MP-M | 10-1/2–15-7/8 in | 12–16 | 13–17 | Medium-to-large smooth-body tubulars |
| MP-L | 15-7/8–19-3/8 in | 17–19 | 18–20 | Large-diameter oilfield pipe |
| MP-XL | Selected sizes from 19-3/8–30-1/2 in | 19–28 | 20–29 | Extra-large tubular applications |
These ranges summarize published industry configurations. They do not guarantee continuous coverage at every intermediate diameter or establish SGPE inventory availability.
MP-S Safety Clamp – Smaller Drill Collars & Flush-Joint Pipe
The MP-S Safety Clamp covers selected pipe outside diameters from 2-7/8 to 5 in, making it suitable for smaller drill collars, flush-joint pipe and other smooth-body oilfield tubulars.
Its compact multi-link arrangement supports secondary restraint during drill collar connection handling, BHA preparation and rig-floor assembly work. The series provides two common reference configurations for different gripping diameters.
MP-S uses specific links, die carriers and gripping inserts that differ from those found in larger MP models. When replacing an existing clamp or ordering spare parts, buyers should confirm the original assembly dimensions and component design to ensure a proper fit.
MP-R Safety Clamp – Common Drill Collar Handling
The MP-R Safety Clamp covers selected tubular outside diameters from 4-1/2 to 10-1/2 in, offering a practical range of configurations for conventional drill collar handling.
This series supports secondary anti-slip restraint during drill collar connection make-up, break-out and drill-string preparation on land drilling rigs, offshore platforms and suitable workover units. Its multiple link arrangements allow buyers to select a configuration for their specific pipe diameter.
MP-R is also relevant to replacement equipment enquiries, especially when drilling contractors need to match an existing clamp to a different pipe size. The original model, actual gripping OD and assembly details help identify the correct configuration.
MP-M Safety Clamp – Medium-to-Large Oilfield Tubulars
The MP-M Safety Clamp covers selected pipe outside diameters from 10-1/2 to 15-7/8 in, extending the MP range to larger smooth-body tubulars used in oil and gas well construction.
Its multi-link design provides several gripping contact points around the tubular. Common configurations suit approved connection-handling work involving larger pipe sections, including specialized drill-string and rig-floor assembly operations.
For MP-M applications, buyers should pay particular attention to the pipe surface and available working space. Large tool joints, nearby rig-floor equipment and restricted gripping areas can affect installation. The selected assembly must fit the actual pipe body and handling arrangement.
MP-L Safety Clamp – Large-Diameter Oilfield Pipe
The MP-L Safety Clamp covers selected tubular outside diameters from 15-7/8 to 19-3/8 in and provides secondary restraint options for large-diameter oilfield pipe.
The series includes three common reference configurations. Its larger linked body makes it suitable for specialized tubular-handling requirements where a conventional smaller MP clamp does not offer the required gripping range.
Because MP-L assemblies occupy more space and have greater weight than smaller configurations, operators should consider installation access, rig-floor clearance and the method used to position the clamp around the tubular. Buyers should also confirm the actual assembly dimensions and weight before finalizing equipment selection.
MP-XL Safety Clamp – Extra-Large Tubular Handling
The MP-XL Safety Clamp provides selected gripping configurations for pipe outside diameters from 19-3/8 to 30-1/2 in, addressing extra-large tubular-handling requirements in oil and gas well construction.
Its extended multi-link arrangement may suit specialized operations involving large-diameter smooth-body tubulars. Potential applications include certain surface casing, conductor pipe and other oilfield tubular components, subject to engineering review and an appropriate primary support arrangement.
Unlike smaller MP models, MP-XL includes several distinct reference configurations rather than one continuous gripping range. Buyers should therefore check the exact pipe OD against the manufacturer’s approved size chart.
For large-diameter projects, technical drawings and details of the pipe material, wall thickness and intended gripping location help determine whether an MP-XL configuration is appropriate.
MP Safety Clamp Technical Specifications
The following specifications describe common manual MP-series safety clamps used in petroleum drilling and tubular handling.
| Technical Parameter | Specification |
|---|---|
| Product Name | MP Safety Clamp |
| Alternative Names | Multipurpose Safety Clamp, Type MP Safety Clamp |
| Supplier | SGPE |
| Product Category | Oilfield Safety Clamp / Tubular Handling Equipment |
| Model Series | MP-S, MP-R, MP-M, MP-L, MP-XL |
| Common Published Configurations | 23 |
| Selected Pipe OD Range | 2-7/8–30-1/2 in (73.0–774.7 mm) |
| Link Quantity | 7–28 |
| Gripping Die Quantity | 8–29 |
| Construction | Hinged multi-link steel assembly |
| Gripping Mechanism | Spring-loaded tapered gripping dies |
| Closing Mechanism | Manual screw-and-nut system |
| Operating Principle | Mechanical wedging action |
| External Power | Not required for standard manual configurations |
| Main Applications | Drill collars, flush-joint pipe and compatible smooth-body tubulars |
| Operating Environments | Land rigs, offshore drilling units and selected workover installations |
| Industry Standard Reference | API Spec 7K, subject to product-specific verification |
| Independent Hoisting Function | Not applicable to standard non-hoisting configurations |
| Structural Material | Steel; actual grade requires confirmation |
| Gripping Die Material / Hardness | According to the confirmed manufacturer specification |
| Surface Protection | According to the selected product specification |
| Assembly Weight / Dimensions | Model- and manufacturer-specific |
| Replacement Components | Links, gripping dies, carriers, springs, pins and closure hardware |
| Quality Documentation | Subject to confirmed product and project requirements |
| Export Packaging | According to the selected assembly and purchase requirements |
These are family-level reference specifications. Actual material grades, gripping ranges, dimensions, weights and technical records depend on the final product offered.
Industry Reference MP Safety Clamp Size Chart
The MP Safety Clamp size chart helps drilling contractors, oilfield maintenance teams and purchasing departments compare common configurations by pipe outside diameter, link count, gripping die quantity and reference number.
The following 23 assemblies come from published WPI Wellkin Type MP product data. They provide a starting point for technical selection, replacement identification and spare-parts enquiries.
MP-S, MP-R and MP-M Safety Clamp Size Chart
| Model | Pipe OD Range – in (mm) | Links | Dies | Catalog / WPI Ref. | Reference Weight, kg* |
|---|---|---|---|---|---|
| MP-S | 2-7/8–4-1/8 (73.0–104.8) | 7 | 8 | 33030 / 31-009 | 57.2 |
| MP-S | 4–5 (101.6–127.0) | 8 | 9 | 33031 / 31-010 | 60.3 |
| MP-R | 4-1/2–5-5/8 (114.3–142.9) | 7 | 8 | 33011 / 31-011 | 54.4 |
| MP-R | 5-1/2–7 (139.7–177.8) | 8 | 9 | 33012 / 31-012 | 59.0 |
| MP-R | 6-3/4–8-1/4 (171.5–209.6) | 9 | 10 | 33013 / 31-013 | 62.6 |
| MP-R | 8–9-1/4 (203.2–235.0) | 10 | 11 | 33014 / 31-014 | 66.7 |
| MP-R | 9-1/4–10-1/2 (235.0–266.7) | 11 | 12 | 33015 / 31-015 | 70.3 |
| MP-M | 10-1/2–11-1/2 (266.7–292.1) | 12 | 13 | 33016 / 31-016 | 73.9 |
| MP-M | 11-1/2–12-1/2 (292.1–317.5) | 13 | 14 | 33017 / 31-017 | 77.6 |
| MP-M | 12-1/2–13-5/8 (317.5–346.1) | 14 | 15 | 33018 / 31-018 | 81.2 |
| MP-M | 13-5/8–14-3/4 (346.1–374.7) | 15 | 16 | 33019 / 31-019 | 84.8 |
| MP-M | 14-3/4–15-7/8 (374.7–403.2) | 16 | 17 | 33020 / 31-020 | 88.5 |
MP-L and MP-XL Safety Clamp Size Chart
| Model | Pipe OD Range – in (mm) | Links | Dies | Catalog / WPI Ref. | Reference Weight, kg* |
|---|---|---|---|---|---|
| MP-L | 15-7/8–17 (403.2–431.8) | 17 | 18 | 33021 / 31-021 | 97.5 |
| MP-L | 17–18-1/2 (431.8–469.9) | 18 | 19 | 33022 / 31-022 | 101 |
| MP-L | 18-1/8–19-3/8 (460.4–492.1) | 19 | 20 | 33023 / 31-023 | 105 |
| MP-XL | 19-3/8–20-3/8 (492.1–517.5) | 19 | 20 | 33024 / 31-024 | 127 |
| MP-XL | 20-3/8–21-1/2 (517.5–546.1) | 20 | 21 | 33025 / 31-025 | 131 |
| MP-XL | 21–22-5/8 (533.4–574.7) | 21 | 22 | 33032 / 31-032 | 134 |
| MP-XL | 22-5/8–23-3/4 (574.7–603.3) | 22 | 23 | 33033 / 31-033 | 138 |
| MP-XL | 23-3/4–24-7/8 (603.3–631.8) | 23 | 24 | 33034 / 31-034 | 142 |
| MP-XL | 24-7/8–26 (631.8–660.4) | 24 | 25 | 33035 / 31-035 | 145 |
| MP-XL | 26–27-1/8 (660.4–689.0) | 25 | 26 | 33036 / 31-036 | 148 |
| MP-XL | 29-3/8–30-1/2 (746.1–774.7) | 28 | 29 | 33039 / 31-039 | 152 |
Source: WPI Wellkin Type MP Safety Clamp Cut Sheet. The listed weights describe WPI reference assemblies without their boxes. They are not confirmed SGPE weights, freight weights or lifting ratings. Part numbers and cross-references identify published third-party configurations, not SGPE-assigned SKUs.
Understanding the Published Gripping Ranges
The reference chart covers a broad selection of tubular diameters, but the 23 listed configurations do not provide continuous coverage between 27-1/8 and 29-3/8 in.
Some manufacturers also publish different limits for specific assemblies. For example, certain 18-link MP-L configurations end at 18-1/8 in rather than 18-1/2 in. Some 21-link MP-XL models begin at 21-1/2 in instead of 21 in.
Such differences matter when replacing an existing clamp. Buyers should rely on the selected manufacturer’s approved drawing and gripping range before placing an order.
MP Safety Clamp Selection by Pipe OD
The size chart offers a practical way to narrow down possible models.
For example, a 6 in outside diameter falls within the published MP-R 33012 range of 5-1/2 to 7 in. A 12 in OD falls within MP-M 33017, while a 24 in OD falls within MP-XL 33034.
These examples show how catalog sizing works. They do not establish suitability for every tubular material, wall thickness or handling procedure.
Before ordering, customers should check the gripping surface, die profile, link arrangement and primary support equipment.
MP Safety Clamp Weight and Shipping Information
Assembly weight varies with the model, link quantity, component design and manufacturer.
The published WPI reference assemblies weigh approximately 54.4–152 kg, excluding their boxes. Other manufacturers may supply assemblies with different weights for similar diameter ranges.
For rig-floor planning and international delivery, request the actual net weight, overall dimensions, packaging dimensions and gross shipping weight.
Special large-diameter requirements beyond the listed reference configurations need a separate technical review.
MP Safety Clamp Features and Working Principle
Hinged Multi-Link Construction
An MP clamp uses linked steel sections instead of a rigid, one-piece body.
The articulated design allows the clamp to wrap around compatible tubulars within its specified gripping range. Each model uses a defined number of links and gripping dies.
This construction also allows maintenance crews to inspect individual link pins, carriers and other mechanical parts.
Operators must follow the approved link arrangement. Adding sections or substituting inserts without technical approval can affect the clamp’s gripping performance.
Spring-Loaded Tapered Gripping Dies
The gripping dies sit inside tapered carriers and contact the tubular when the operator closes and tightens the clamp.
Spring tension helps position the inserts. If the pipe tends to move downward relative to the clamp, the tapered carriers can increase gripping engagement.
This wedging action provides the tool’s secondary anti-slip function.
Correct operation depends on the assembly configuration, die condition, pipe surface and installation method.
Replaceable Gripping Components
Gripping dies, links, carriers, springs and pins are serviceable components.
Maintenance personnel can inspect these parts individually and replace components that fail the manufacturer’s inspection criteria.
Standard toothed dies may leave marks on the tubular surface. Therefore, coated pipe, chrome alloys, corrosion-resistant alloys (CRA) and other sensitive materials require careful gripping compatibility assessment.
The selected die profile must suit the actual pipe material and approved contact location.
Manual Operation and Safety Limitations
Standard manual MP clamps use a screw-and-nut closure. They do not require external hydraulic, pneumatic or electrical power.
Crews must follow the manufacturer’s installation and tightening instructions. They should also verify the actual gripping OD and the condition of the mechanical components before use.
A standard MP clamp provides secondary restraint rather than primary load support.
Qualified drill collar slips, rotary slips, elevators, spiders or other approved equipment must carry the tubular weight.
Operators must not use a standard non-hoisting MP clamp to independently lift a drill collar, suspend the drill string, replace primary slips or function as a crane lifting device.
Specialized handling arrangements require separate engineering approval and equipment-specific documentation.
MP Safety Clamp Applications in Oil and Gas Operations
Drill Collar Handling, Make-Up and Break-Out
Drill collars are heavy, thick-walled tubulars that provide weight on bit during drilling. Their smooth external surfaces require careful handling when crews make up or break out connections.
A properly selected Drill Collar Safety Clamp adds mechanical restraint while qualified primary equipment supports the collar.
Typical work includes connection make-up, break-out, stationary rig-floor positioning and drill-string preparation.
These procedures occur on land drilling rigs, offshore platforms and other suitable petroleum drilling installations.
BHA Assembly and Drill-String Preparation
A bottom hole assembly often includes drill collars, stabilizers, drilling jars and other downhole drilling components.
During preparation, crews connect and position these tools before running the assembly into the well.
An MP clamp may provide supplementary restraint around an approved smooth-body section during selected BHA connection-handling tasks.
These operations can support conventional drilling, directional drilling, horizontal drilling and extended-reach well programs.
However, specialized components may have hardbanded areas, sensitive surfaces or restricted gripping locations. Operators must confirm compatibility before applying toothed inserts.
Flush-Joint Pipe and Smooth-Body Tubular Handling
Flush-joint pipe has little or no external upset at the connection. Consequently, proper primary support is essential during make-up, break-out and rig-floor positioning.
The multi-link MP clamp provides supplementary gripping contact around compatible pipe bodies.
The correct configuration depends on the actual outside diameter, wall thickness, material and approved handling method.
For smaller production tubing, a Type T Safety Clamp or dedicated tubing-handling tool may be more suitable.
Offshore Drilling, Jack-Up Rigs and Drillships
Selected MP configurations can support approved connection-handling procedures on fixed offshore platforms, jack-up rigs, semi-submersibles and drillships.
Common applications include drill collar make-up, BHA preparation and flush-joint tubular handling.
Offshore operations may require additional corrosion protection, inspection records, equipment-clearance checks and maintenance documentation.
Buyers should confirm these requirements for the selected clamp before deployment.
Oilfield Workover and Well Servicing
Workover rigs, pulling units and well-service installations handle different tubulars during well repair, recompletion and downhole equipment maintenance.
Some operations involve drill collars, flush-joint pipe or compatible smooth-body tool sections.
An appropriately selected MP clamp may provide secondary restraint during approved connection-handling work.
Conventional production tubing and sensitive completion components may require different safety clamps or specialized tubular-handling tools.
Specialized Casing, Fishing and Completion Applications
Certain petroleum projects involve large-diameter surface casing, conductor pipe, wash pipe, fishing-tool components and specialized completion tubulars.
Some of these components may have smooth-body sections suitable for approved secondary-restraint arrangements.
However, their materials, wall thicknesses and primary support requirements can differ substantially from those of conventional drill collars.
Sensitive equipment, including well screens and prepacked gravel liners, may not tolerate standard toothed gripping dies.
Such applications require engineering review of the component drawing, intended gripping location and handling procedure. A standard MP clamp must not replace qualified casing or completion-handling equipment.
How to Select the Right MP Safety Clamp
An accurate MP Safety Clamp selection begins with the tubular’s actual outside diameter at the intended gripping point.
Nominal pipe size may differ from the pipe body, connection diameter or external upset. Using the true gripping OD helps identify suitable MP-S, MP-R, MP-M, MP-L or MP-XL reference configurations.
After narrowing down the model, compare the required link count, gripping die quantity and manufacturer’s approved assembly. Overlapping diameter ranges do not automatically make two configurations interchangeable.
The tubular material and surface condition also matter. Coatings, corrosion, hardbanding and material hardness can affect gripping performance. CRA and other sensitive surfaces may require a different insert profile or handling method.
Finally, review the primary support equipment and available working space. Larger clamps need more clearance, while offshore projects may impose additional inspection or corrosion-protection requirements.
For technical evaluation, send SGPE the actual gripping OD, tubular type, material, wall thickness, operating requirements and available drawings.
These details help establish a suitable configuration before quotation.
MP Safety Clamp Spare Parts and Replacement Components
SGPE supports enquiries for compatible MP Safety Clamp spare parts, including gripping dies, complete links, die carriers, springs, connecting pins, latch components and tightening hardware.
Oilfield maintenance teams often use original catalog numbers to identify worn or damaged components. The following published references can help with technical comparison.
MP Safety Clamp Replacement Parts Reference
| Replacement Component | Catalog Ref. | WPI Cross Ref. | Typical Application |
|---|---|---|---|
| Complete Link | 3335 | 31-335 | MP-S |
| Complete Link | 3319 | 31-319 | Other MP reference designs |
| Link Pin with Cotter | 3307 | 31-307 | Selected assemblies |
| Link with Cotter | 3306 | 31-306 | Selected assemblies |
| Carrier Assembly with Die | 3325 | 31-325 | MP-S |
| Carrier Assembly with Die | 3324 | 31-324 | Other MP reference designs |
| Gripping Die with Cotter | 3333 | 31-333 | MP-S |
| Gripping Die with Cotter | 3310 | 31-310 | Other MP reference designs |
| Carrier without Die | 3309 | 31-309 | Selected assemblies |
| Insert Spring | 3311 | 31-311 | Selected assemblies |
| Roll Pin / Die Keeper | 51604-18 | 31-418 | Selected gripping assemblies |
| Cotter Pin for Carrier | 51405-28 | 31-528 | Selected assemblies |
| Latch Link | 3304 | 31-304 | Reference designs other than MP-XL |
| MP-XL Latch Link | 3321 | 31-321 | MP-XL |
| Screw Pin with Cotter | 3308 | 31-308 | Selected manual assemblies |
| Tightening Screw | 3302 | 31-302 | Selected manual assemblies |
| Thrust Washer | 2714 | 31-714 | Selected manual assemblies |
| Tightening Nut | 3303 | 31-303 | Selected manual assemblies |
| Handle | 3305 | 31-305 | Selected manual assemblies |
| Nut Wrench | 3320 | 31-320 | Selected manual assemblies |
Reference source: WPI Wellkin Type MP Safety Clamp Cut Sheet. These numbers identify third-party catalog components, not SGPE-assigned part numbers. Matching references do not establish OEM affiliation or guaranteed interchangeability.
Replacement Gripping Dies, Links and Carriers
Gripping dies can wear during repeated operation. Link pins, carriers and other mechanical parts may also suffer corrosion or damage.
Maintenance personnel should replace components that fail inspection with parts that meet the manufacturer’s approved specifications.
For a replacement enquiry, provide the original clamp model, existing part number, dimensions and clear photographs.
MP-S components need particular attention because their gripping dies and carriers differ from those used in other common MP configurations.
Legacy MP Safety Clamp Cross-Reference Enquiries
Some purchasing records identify MP-style equipment through older catalog numbers or Varco-type descriptions.
These references can help identify an existing design but do not automatically establish OEM authorization or direct part compatibility.
SGPE can review dimensional replacement enquiries using the original manufacturer, model, part number and available drawings.
The proposed replacement must match the approved assembly geometry, materials and operating requirements.
MP Safety Clamp Inspection, Maintenance and API Spec 7K
Routine inspection helps drilling crews identify worn or damaged components before handling tubulars.
Before use, qualified personnel should examine the links, gripping dies, carriers, springs, pins, retainers and closing mechanism. They must also check the assembly configuration and the intended gripping surface.
After use, maintenance crews should remove drilling mud and abrasive debris according to the manufacturer’s instructions.
Cracked, deformed or excessively worn components require assessment. Operators should remove affected equipment from service until qualified personnel determine the necessary corrective action.
Crews must not weld damaged links, modify gripping teeth or install unapproved hardware.
For offshore projects, maintenance teams should maintain the inspection and service records required by the operator or project specification.
API Spec 7K and Technical Documentation
API Specification 7K – Drilling and Well Servicing Equipment includes safety clamps that do not function as hoisting devices within its equipment scope.
However, that classification does not automatically establish product conformity, API Monogram licensing or certification for any particular MP clamp.
Buyers should confirm the applicable requirements and available documentation for the actual assembly.
Depending on the manufacturer and project, documentation may include product specifications, dimensional drawings, material records, inspection reports, component traceability and operating instructions.
SGPE can review documentation requirements during the quotation process.
MP Safety Clamp vs. Type C and Type T Safety Clamps
MP, Type C and Type T Safety Clamps provide secondary restraint for compatible oilfield tubulars, but their gripping ranges and mechanical designs differ.
| Safety Clamp Type | Common Published OD Range | Typical Application |
|---|---|---|
| MP Safety Clamp | Selected sizes from 2-7/8 to 30-1/2 in | Drill collars, flush-joint pipe and larger smooth-body tubulars |
| Type C / WA-C Safety Clamp | 3-3/4–15-5/8 in | Conventional drill collar and smooth-body pipe handling |
| Type T / WA-T Safety Clamp | 1-1/8–4-1/2 in | Smaller flush-joint tubing and production tubulars |
The correct choice depends on the actual pipe OD, gripping surface, insert profile and approved operating procedure.
A Type C clamp may suit selected conventional drill collar applications. Type T generally focuses on smaller-diameter tubulars used during completion and workover operations.
MP Safety Clamp vs. Drill Collar Slips
An MP Safety Clamp provides secondary restraint. Properly selected drill collar slips, by contrast, serve as primary tubular-support equipment in compatible rotary-table arrangements.
For primary drill collar support, explore SGPE DCS Type Drill Collar Slips and Drill Collar Rotary Slips.
SGPE also supplies Tong Dies and Slip Inserts for selected oilfield handling equipment.
MP Safety Clamp Supplier, Pricing and Replacement Support
SGPE supplies oilfield tubular-handling equipment for drilling contractors, well-service companies and international petroleum equipment buyers.
Customers can request MP Safety Clamp model selection, drill collar safety clamp pricing, complete Type MP assemblies, replacement gripping dies, links and compatible mechanical spare parts.
The MP Safety Clamp price depends on the required model, pipe OD, link arrangement, supplied components and order quantity.
For example, an MP-S assembly uses fewer links and gripping dies than an MP-XL configuration. These differences affect assembly size, component quantity and transportation requirements.
Material specifications, inspection scope, spare parts, export packing and delivery destination may also influence the final quotation.
When comparing oilfield safety clamp suppliers, buyers should consider technical compatibility alongside purchase cost. Correct gripping dimensions, insert profiles, replacement-part fit and available documentation all affect equipment suitability.
SGPE supports project-specific enquiries for complete safety clamps and compatible replacement components.
Frequently Asked Questions About MP Safety Clamps
1. What is an MP Safety Clamp used for in oilfield drilling?
An MP Safety Clamp, also known as a Multipurpose Safety Clamp, provides secondary anti-slip restraint for drill collars, flush-joint pipe and other compatible smooth-body oilfield tubulars. Its hinged steel links and tapered gripping dies help resist unintended downward pipe movement during approved handling procedures.
Drilling crews commonly use MP clamps during drill collar connection make-up and break-out, bottom hole assembly (BHA) preparation, drill-string assembly and rig-floor handling. These operations take place on land drilling rigs, offshore platforms and selected workover units. The clamp works alongside qualified primary tubular-support equipment rather than replacing it.
2. What is the difference between MP-S, MP-R, MP-M, MP-L and MP-XL Safety Clamps?
The MP-S, MP-R, MP-M, MP-L and MP-XL Safety Clamp series cover different tubular outside diameters and use corresponding link and gripping die arrangements.
Common industry configurations place MP-S in the 2-7/8 to 5 in range, while MP-R covers selected diameters from 4-1/2 to 10-1/2 in. MP-M extends to 15-7/8 in, MP-L to 19-3/8 in, and MP-XL includes selected sizes up to 30-1/2 in.
MP-S and MP-R commonly suit drill collar handling, while larger configurations may support specialized oilfield tubular operations. Buyers should select the model according to the actual gripping OD, approved size chart and required assembly configuration, not simply the series name.
3. What pipe sizes does an MP Safety Clamp cover?
Common Type MP Safety Clamp industry configurations cover selected pipe outside diameters from 2-7/8 to 30-1/2 in (73.0–774.7 mm). The available gripping range depends on the model, link quantity and manufacturer-approved assembly.
For example, a 6 in tubular OD falls within the published MP-R 33012 reference range, while a 12 in OD falls within MP-M 33017. A 24 in OD falls within the MP-XL 33034 reference range.
However, the published configurations do not cover every intermediate diameter continuously. Drilling contractors should confirm the actual gripping location, pipe material and approved dimensions before selecting equipment for drill collar handling, BHA preparation or offshore drilling.
4. How many links and gripping dies does an MP Safety Clamp need?
The required link and gripping die quantities depend on the MP Safety Clamp model and actual pipe outside diameter. Common published configurations use 7–28 hinged links and 8–29 gripping dies.
For example, an MP-R assembly covering 5-1/2 to 7 in uses eight links and nine gripping dies in the referenced industry catalog. Larger MP-L and MP-XL configurations require additional components to accommodate their specified tubular diameters.
Each assembly must follow the manufacturer’s approved design. Buyers ordering replacement links, die carriers or gripping inserts should provide the original clamp model, existing component quantities and catalog reference to help verify compatibility.
5. Does a manual MP Safety Clamp require hydraulic or pneumatic power?
No. A standard manual MP Safety Clamp operates mechanically and does not require an external hydraulic power unit, compressed-air supply or electrical connection.
The clamp uses hinged steel links, spring-loaded tapered gripping dies and a screw-and-nut tightening mechanism. The operator closes the assembly around the tubular and tightens it according to the manufacturer’s instructions.
This mechanical design supports approved drill collar and flush-joint pipe handling procedures on land rigs, offshore drilling units and selected workover installations. However, correct installation, gripping die condition and pipe compatibility remain essential for safe operation.
6. Can an MP Safety Clamp lift or independently suspend a drill collar?
No. A standard MP Safety Clamp is a non-hoisting secondary restraint device. It must not independently lift, suspend or support the full weight of a drill collar or drill string.
During drill collar connection make-up, break-out and BHA preparation, qualified drill collar slips, rotary slips, elevators or other approved primary support equipment must carry the tubular load. The safety clamp provides supplementary restraint within the approved handling arrangement.
Operators must not use it as a substitute for primary slips, a crane lifting device or a guaranteed fall-arrest system. The drilling contractor should follow the manufacturer’s operating instructions and applicable rig-floor safety procedures.
7. Can MP Safety Clamps handle flush-joint pipe, casing and production tubing?
MP Safety Clamps commonly suit drill collars, flush-joint pipe and compatible smooth-body oilfield tubulars. Their multi-link construction provides a range of gripping configurations for approved connection-handling work.
Selected larger models may be considered for specialized surface casing, conductor pipe or other large-diameter tubular applications, but these uses require engineering review. Pipe wall thickness, material, gripping location and the primary support arrangement all affect suitability.
For smaller production tubing used during well completion, tubing running or oilfield workover, a Type T Safety Clamp or dedicated tubing-handling tool may offer a better fit. Sensitive coated tubulars and corrosion-resistant alloys may also require alternative gripping inserts or handling methods.
8. Are MP Safety Clamps suitable for offshore drilling, jack-up rigs and workover operations?
Selected MP Safety Clamp configurations can support approved tubular-handling procedures on land drilling rigs, offshore platforms, jack-up rigs, semi-submersibles, drillships and compatible workover units.
Typical applications include drill collar connection handling, BHA preparation, flush-joint pipe positioning and selected well-servicing operations. Their manual mechanical design does not require an external hydraulic or pneumatic power source.
Offshore projects may require additional corrosion protection, inspection documentation, equipment-clearance checks and maintenance records. Before deployment, operators should confirm that the selected clamp and its gripping components meet the project’s technical and safety requirements.
9. Are MP Safety Clamps compliant with API Spec 7K?
API Specification 7K – Drilling and Well Servicing Equipment includes safety clamps that do not function as hoisting devices within its equipment scope.
However, this classification does not automatically establish that every Type MP Safety Clamp complies with API Spec 7K or carries an API Monogram. Product conformity and certification depend on the actual manufacturer, equipment configuration and supporting documentation.
Oilfield buyers should confirm the applicable standard requirements when purchasing safety clamps for land or offshore drilling projects. Depending on the selected product, SGPE can review requests for available technical specifications, material records, dimensional drawings and inspection documentation.
10. Can I order MP Safety Clamp gripping dies, links and replacement spare parts?
SGPE supports enquiries for compatible MP Safety Clamp spare parts, including replacement gripping dies, complete links, die carriers, springs, connecting pins, latch components and tightening hardware.
Common industry catalog references include 3310 and 3333 for gripping dies, 3319 and 3335 for links, and 3302 and 3303 for tightening components. These references help maintenance teams identify existing MP-style equipment during drilling rig servicing and oilfield tool repair.
However, similar part numbers do not guarantee direct interchangeability between manufacturers. For replacement orders, customers should provide the original model, part number, component dimensions and clear photographs so SGPE can review the required specifications.
11. How much does an MP Safety Clamp weigh?
The weight of an MP Safety Clamp depends on its model, link quantity, gripping components and manufacturer.
Published WPI Wellkin industry reference assemblies range from approximately 54.4 to 152 kg, excluding their boxes. Smaller MP-S and MP-R configurations generally weigh less than the larger MP-L and MP-XL assemblies, although actual weights vary by design.
These reference values are not confirmed SGPE product weights or lifting ratings. For offshore equipment handling, rig-floor planning, export packaging and international freight quotations, customers should request the actual net weight, overall dimensions, packed weight and shipping measurements of the selected assembly.
12. How much does an MP Safety Clamp cost, and how can I request a quotation from SGPE?
The MP Safety Clamp price depends on the selected model, pipe gripping range, link arrangement, component specifications, order quantity and project requirements. Inspection documentation, compatible spare parts, export packaging and delivery destination may also affect the final quotation.
SGPE supports enquiries for MP-S, MP-R, MP-M, MP-L and MP-XL Safety Clamps, complete assemblies and replacement gripping components for oilfield drilling and workover projects.
For accurate pricing, customers should provide the required model, actual tubular outside diameter, tubular type, quantity and delivery destination. Existing catalog numbers, photographs or technical drawings can help identify replacement equipment.
SGPE will review your technical and purchasing requirements, identify a suitable product configuration and provide a tailored quotation for your MP Safety Clamp or replacement parts.
Request an MP Safety Clamp Quote from SGPE
Looking for an MP Safety Clamp for drill collar handling, flush-joint pipe connections, BHA preparation, offshore drilling or oilfield workover?
SGPE supports enquiries for MP-S, MP-R, MP-M, MP-L and MP-XL Safety Clamps, complete assemblies, replacement gripping dies, links and compatible spare parts.
For an accurate quotation, please provide the required model, actual pipe outside diameter (OD), tubular type, quantity and delivery destination. If you need help selecting a model, include your pipe dimensions and intended application.
For replacement orders, share the original manufacturer, catalog or part number, along with available link and gripping die counts. Photographs or technical drawings can help confirm compatibility.
Please also specify any requirements for materials, inspection, technical documentation or export packaging.
Email: info@sgpe.com
Tel / WhatsApp: +86 186-1599-5239
