Description
Type C Safety Clamp (WA-C) for Drill Collars & Flush-Joint Pipe in Oilfield Drilling
SGPE Type C Safety Clamp (WA-C) is a mechanical oilfield safety tool that provides secondary anti-slip restraint for drill collars, flush-joint pipe and compatible smooth-body tubulars. Drilling crews use it during connection make-up and break-out, bottom hole assembly (BHA) preparation and other approved rig-floor operations.
Smooth-body tubulars need careful handling, particularly when their connection profiles lack a pronounced external shoulder. During connection work, suitable slips or other qualified equipment support the string. A correctly sized safety clamp adds restraint against unintended downward movement.
The WA-C clamp uses hinged alloy-steel links, spring-loaded tapered gripping inserts and a manual screw-and-nut closure. Its linked assembly wraps around the tubular, allowing individual inserts to grip at several points around the circumference.
Standard configurations cover 3-3/4 to 15-5/8 in OD (95.3–396.9 mm) with 7 to 18 links. The range includes 12 common arrangements for drill collars and other compatible oilfield tubulars.
SGPE supplies complete WA-C assemblies for drilling contractors, offshore operators, workover companies and oilfield equipment distributors. Buyers can also request compatible replacement parts, dimensional reviews and quotations for specific pipe sizes.
Important: The standard WA-C Safety Clamp is a non-hoisting device. It provides secondary restraint and must not replace drill collar slips, elevators, spiders or other qualified primary support equipment.
Email: info@sgpe.com
Tel / WhatsApp: +86 186-1599-5239
How Does a Type C Safety Clamp Work?
A Type C Safety Clamp uses a mechanical wedge-gripping system.
The operator selects the correct link configuration for the pipe outside diameter, wraps the hinged assembly around the tubular and closes it with the manual tightening mechanism.
Each link contains a spring-loaded tapered insert. Tightening the clamp establishes initial contact between the inserts and the pipe. If the tubular moves downward relative to the clamp, the tapered mounting can increase gripping resistance.
Because the inserts act at several points around the circumference, the clamp provides a distributed gripping arrangement rather than relying on one contact point.
The standard manual design needs no hydraulic pump, compressed-air supply or electrical connection.
Correct installation remains essential. Operators must use the specified link arrangement, inspect the gripping components and follow the manufacturer’s tightening instructions.
Adjustable Multi-Link Construction
The WA-C series uses interconnected links to accommodate different pipe diameters. Standard arrangements contain 7 to 18 links, allowing buyers to select a configuration that matches their tubular program.
The hinged construction also makes individual links and connecting parts accessible for inspection.
Spring-Loaded Tapered Gripping Inserts
Each link carries a tapered gripping insert and spring. Together, these components provide the clamp’s wedge-gripping action.
Worn teeth, damaged springs or an unsuitable insert profile can affect performance and mark the tubular surface. Crews should inspect these parts before use.
Manual Closure and Serviceable Components
The standard WA-C assembly uses a mechanical screw-and-nut closing system.
Its construction includes replaceable links, pins, springs, gripping inserts and closure components. Maintenance personnel can inspect these items and replace compatible parts when necessary.
The actual material grade, heat treatment and component dimensions depend on the selected configuration.
WA-C Type C Safety Clamp Technical Specifications
The following specifications summarize the WA-C product family. They provide a starting point for model selection and purchasing.
General Product Specifications
| Technical Parameter | Specification |
|---|---|
| Product Name | Type C Safety Clamp |
| Alternative Names | C Type Safety Clamp, WA-C Safety Clamp |
| Brand | SGPE |
| Model Series | WA-C |
| Product Category | Oilfield Safety Clamp / Tubular Handling Tool |
| Primary Function | Secondary Anti-Slip Restraint |
| Operating Principle | Mechanical Wedge-Gripping Action |
| Published Pipe OD Range | 3-3/4 – 15-5/8 in |
| Approximate Metric Range | 95.3–396.9 mm |
| Standard Link Quantity | 7–18 Links |
| Common Configurations | 12 |
| Main Construction | Alloy-Steel Components |
| Clamp Structure | Hinged Multi-Link Assembly |
| Gripping Mechanism | Spring-Loaded Tapered Inserts |
| Closing Mechanism | Manual Screw and Nut |
| External Power | Not Required |
| Primary Applications | Drill Collars and Flush-Joint Pipe |
| Additional Applications | Selected Compatible Smooth-Body Oilfield Tubulars |
| Typical Operations | Drilling, BHA Assembly, Connection Handling and Workover |
| Rig Applications | Land Drilling Rigs, Offshore Rigs, Jack-Up Rigs and Workover Units |
| Relevant API Category | API Spec 7K – Safety Clamps Not Used as Hoisting Devices |
| Hoisting Function | Not Permitted for Standard Non-Hoisting Configuration |
| Replacement Components | Links, Gripping Inserts, Springs, Pins and Closure Hardware |
| Material Grade | Confirm for Selected Model |
| Assembly Net Weight | Confirm by Configuration |
| Overall Dimensions | According to Selected Assembly Drawing |
| Surface Protection | According to Confirmed Supply Specification |
| Inspection Documentation | Subject to Agreed Purchase Requirements |
These are family-level specifications, not a complete manufacturing drawing for one assembly. SGPE can confirm the available material, dimensional and inspection information for the model being quoted.
Additional Technical Information for Procurement
Replacement equipment often requires more than a matching pipe OD. The insert profile, hinge-pin dimensions, link geometry and closing mechanism must also suit the existing assembly.
For offshore projects, buyers may need to review corrosion protection, inspection requirements and material traceability. Assembly weight and packing dimensions also matter when planning shipment and rig-floor storage.
Include these details in your enquiry so SGPE can confirm the appropriate technical information before order placement.
The standard WA-C clamp has no rated hoisting capacity. Its gripping range and assembly weight must not be interpreted as lifting-load ratings.
WA-C Type C Safety Clamp Size Chart – 7 to 18 Links
The WA-C series offers 12 common link configurations for pipe outside diameters from 3-3/4 to 15-5/8 in.
The number of links increases with pipe diameter. Each assembly has a specified gripping range, which buyers should use as the starting point for selection.
Standard WA-C Safety Clamp Models and Pipe OD Ranges
| Model / Configuration | Pipe OD Range (in) | Approx. OD Range (mm) | Links |
|---|---|---|---|
| WA-C 7-Link | 3-3/4 – 4-5/8 | 95.3–117.5 | 7 |
| WA-C 8-Link | 4-1/2 – 5-5/8 | 114.3–142.9 | 8 |
| WA-C 9-Link | 5-1/2 – 6-5/8 | 139.7–168.3 | 9 |
| WA-C 10-Link | 6-1/2 – 7-5/8 | 165.1–193.7 | 10 |
| WA-C 11-Link | 7-1/2 – 8-5/8 | 190.5–219.1 | 11 |
| WA-C 12-Link | 8-1/2 – 9-5/8 | 215.9–244.5 | 12 |
| WA-C 13-Link | 9-1/2 – 10-5/8 | 241.3–269.9 | 13 |
| WA-C 14-Link | 10-1/2 – 11-5/8 | 266.7–295.3 | 14 |
| WA-C 15-Link | 11-1/2 – 12-5/8 | 292.1–320.7 | 15 |
| WA-C 16-Link | 12-1/2 – 13-5/8 | 317.5–346.1 | 16 |
| WA-C 17-Link | 13-1/2 – 14-5/8 | 342.9–371.5 | 17 |
| WA-C 18-Link | 14-1/2 – 15-5/8 | 368.3–396.9 | 18 |
The configuration names describe WA-C assemblies by link quantity, not separate proprietary SGPE part numbers. Metric values are approximate conversions of the published inch dimensions.
Understanding WA-C Size Ranges
The 7–9-link configurations cover pipe outside diameters from 3-3/4 to 6-5/8 in. The 10–13-link configurations extend from 6-1/2 to 10-5/8 in, while the 14–18-link configurations cover 10-1/2 to 15-5/8 in.
Some ranges overlap. For example, a 6-1/2 in pipe falls within the published ranges of both the 9-link and 10-link assemblies.
An overlap does not make two configurations interchangeable. The final choice depends on the complete link arrangement, insert profile, tightening mechanism and gripping location.
Spiral grooves, slip recesses, coatings and special tool profiles may also affect the contact area. Never add unapproved links to extend a clamp’s working range.
Common Drill Collar Sizes and WA-C Safety Clamp Selection
Many drilling contractors specify a Drill Collar Safety Clamp by the drill collar outside diameter rather than the clamp model number.
The table below provides preliminary matches for commonly used drill collar sizes.
| Drill Collar OD (in) | Approx. OD (mm) | Preliminary WA-C Configuration |
|---|---|---|
| 4-3/4 | 120.7 | 8-Link |
| 5 | 127.0 | 8-Link |
| 6-1/4 | 158.8 | 9-Link |
| 6-1/2 | 165.1 | 9-Link or 10-Link – Confirm |
| 6-3/4 | 171.5 | 10-Link |
| 7-1/4 | 184.2 | 10-Link |
| 8 | 203.2 | 11-Link |
| 8-1/4 | 209.6 | 11-Link |
| 9-1/2 | 241.3 | 12-Link or 13-Link – Confirm |
| 11 | 279.4 | 14-Link |
For example, a 6-3/4 in drill collar falls within the published WA-C 10-link range, while an 8 in drill collar falls within the 11-link range.
These matches help narrow the options, but they do not replace manufacturer-approved selection.
A drill collar may have spiral grooves, slip recesses or elevator recesses that interrupt the gripping surface. Always check the actual contact diameter, available gripping length and pipe condition.
For spiral-grooved drill collars, non-magnetic components or sensitive downhole tools, the equipment manufacturer may specify another gripping location or a dedicated handling method.
SGPE can review the tubular dimensions before confirming the suitable configuration.
Type C Safety Clamp Applications in Oil and Gas Operations
The WA-C range serves drilling and well-servicing operations where compatible smooth-body tubulars need additional anti-slip restraint.
Its principal applications are drill collar handling, BHA preparation and flush-joint pipe connection work.
1. Drill Collar Handling and Connection Make-Up
Drill collars form part of the drill string and help provide weight on bit.
Their smooth outer surfaces can make stationary connection work more demanding. During make-up and break-out, crews may use a correctly sized Drill Collar Safety Clamp alongside suitable primary slips.
The WA-C range offers different link configurations for common drill collar diameters. It can support approved connection work, string preparation and handling near the rotary table.
The safety clamp adds restraint; the primary equipment carries the string load.
2. Bottom Hole Assembly (BHA) Preparation
BHA preparation involves connecting drill collars and downhole components before running the string into the well.
A compatible WA-C clamp may provide supplementary restraint around an approved smooth-body section during connection handling.
However, non-magnetic drill collars, MWD/LWD housings, drilling jars and other specialized components may have restricted gripping areas. Conventional toothed inserts may not suit these surfaces.
Before use, confirm the permitted contact location and the equipment manufacturer’s handling requirements.
3. Flush-Joint Pipe Handling
Flush-joint pipe may lack the pronounced external shoulder found on conventional upset connections.
During stationary connection work, crews must select suitable primary support equipment and any additional restraint required by the operating procedure.
A correctly sized Flush-Joint Pipe Safety Clamp provides supplementary gripping contact around a compatible pipe body.
For smaller tubulars below the WA-C gripping range, the WA-T Type T Safety Clamp may be more suitable.
4. Offshore Drilling and Jack-Up Rigs
Compatible WA-C clamps can support approved connection-handling procedures on offshore platforms, jack-up rigs, semi-submersible units and drillships.
The standard manual design requires no separate hydraulic or pneumatic power supply.
Offshore projects may have additional requirements for corrosion protection, inspection records, equipment clearance and maintenance. These details should form part of the technical review before ordering.
5. Workover and Well Servicing
Workover crews handle different tubulars during well repair, recompletion and downhole equipment replacement.
Some jobs involve drill collars, wash pipe or other compatible smooth-body assemblies within the WA-C diameter range.
A suitable clamp can provide secondary restraint during approved stationary connection work on workover rigs and well-service units.
Smaller production tubing and specialized tools may require another safety clamp family or dedicated handling equipment.
6. Selected Casing, Completion and Intervention Work
Certain casing, completion and intervention programs involve smooth-body tubular sections that may need supplementary restraint.
A Type C clamp may suit selected stationary connection or positioning operations when the tubular manufacturer permits conventional gripping inserts.
However, material, wall thickness, coating, connection geometry and acceptable surface marking determine compatibility.
Thin-walled pipe, corrosion-resistant alloys, premium coatings and sensitive completion tools may need specialized handling systems. The same caution applies to fishing assemblies and other downhole tools.
SGPE recommends a technical review before selecting WA-C equipment for these applications.
Type C vs. Type T vs. MP Safety Clamps
Oilfield safety clamps come in different designs and size ranges.
| Safety Clamp Family | Typical Published Size Coverage | Primary Application |
|---|---|---|
| Type C / WA-C | 3-3/4 – 15-5/8 in | Drill collars and compatible larger smooth-body tubulars |
| Type T / WA-T | 1-1/8 – 4-1/2 in across standard configurations | Smaller tubing and flush-joint tubulars |
| MP / Multi-Purpose | Depends on MP-S, MP-R, MP-M, MP-L and MP-XL models | Various drilling and workover tubular sizes |
The Type C Safety Clamp mainly serves drill collars and compatible larger tubulars. Type T Safety Clamps cover smaller pipe sizes through 4-link, 5-link and 6-link arrangements.
The MP Multi-Purpose Safety Clamp family offers additional model groups for different pipe diameters.
Although some working ranges overlap, these clamps are not automatically interchangeable. Buyers must check the gripping diameter, insert design and approved operating requirements.
Type C Safety Clamp Models and Industry Replacement References
Oilfield buyers may encounter several Type C model names when sourcing new clamps or replacing older equipment.
Besides WA-C, common industry designations include CR, CS, CM, CL and CXL. Different manufacturers use these names for different size groups, so the original brand matters.
Published Industry Model Cross-References
| Reference Manufacturer | Model | Published OD Range (in) | Links | Original Part References |
|---|---|---|---|---|
| Keystone Energy Tools | Type CR | 3-3/4 – 10-5/8 | 7–13 | A12-127 to A12-133 |
| Keystone Energy Tools | Type CL | 10-1/2 – 15-5/8 | 14–18 | A12-134 to A12-138 |
| Keystone Energy Tools | Type CXL | 15-1/2 – 20 | 18–21 | A12-145 to A12-148 |
| Spectrum Drilling Tools | Type CS | 3-3/4 – 10-5/8 | 7–13 | 6401 to 6407 |
| Spectrum Drilling Tools | Type CM | 10-1/2 – 15-5/8 | 14–18 | 6408 to 6412 |
| Spectrum Drilling Tools | Type CL | 15-1/2 – 18 for Model 6413 | 18 | 6413; larger models also listed |
These are third-party catalog references, not SGPE part numbers. They do not establish direct interchangeability, identical dimensions or confirmed SGPE stock availability.
For example, Keystone uses Type CL for a 14–18-link group, while Spectrum uses Type CL for a larger size family.
Some manufacturers also offer versions with different closure arrangements or lifting attachments. Those designs require separate technical review and must not be treated as equivalent to a standard non-hoisting WA-C assembly.
Replacement and Cross-Reference Enquiries
SGPE can review requests for replacement Type CR, CL, CXL, CS and CM assemblies.
For an accurate comparison, provide the original manufacturer, complete part number, pipe OD range, link quantity and closure arrangement.
Photographs of the clamp body, end links, tightening mechanism and gripping inserts are also useful. If the original assembly has a double-screw closure or lifting attachment, include those details.
A matching model name does not guarantee a matching design. SGPE must review the equipment details before confirming a possible alternative.
How to Choose the Right WA-C Type C Safety Clamp
Start with the actual pipe outside diameter at the intended gripping location.
Compare that measurement with the WA-C size chart to identify a preliminary link configuration. Then check whether the available contact surface suits conventional tapered inserts.
Tool joints, spiral grooves, slip recesses and special connections can alter the gripping geometry. The tubular material matters too, particularly for coated pipe, corrosion-resistant alloys and damage-sensitive components.
Next, confirm the primary handling arrangement. Suitable slips, elevators or other qualified equipment must support the tubular load without interference from the safety clamp.
For offshore or workover projects, consider operating clearance, corrosion protection and inspection requirements.
Finally, include any spare parts, drawings or documents needed for procurement.
These details help SGPE review the suitable configuration and prepare an accurate offer without unnecessary back-and-forth.
WA-C Safety Clamp Spare Parts and Replacement Components
Regular inspection helps keep a Type C Safety Clamp in suitable mechanical condition.
SGPE supports enquiries for complete assemblies and compatible replacement links, gripping inserts, springs, pins and tightening components.
Common WA-C Safety Clamp Spare Parts
| Spare Part | Main Function | Replacement Information |
|---|---|---|
| Intermediate Links | Form the adjustable clamp body | Model and link dimensions |
| Screw-Side End Link | Connects to the tightening mechanism | End-link configuration |
| Pivot-Side End Link | Supports the closing assembly | Model and dimensions |
| Tapered Gripping Inserts | Contact the tubular surface | Insert profile and geometry |
| Insert Springs | Maintain insert positioning | Spring type and dimensions |
| Hinge / Link Pins | Connect adjacent links | Diameter, length and retaining method |
| Retaining / Cotter Pins | Secure components | Pin dimensions |
| Tightening Screw and Nut | Close and adjust the clamp | Thread and closure specifications |
| Pivot Block Components | Support closure movement | Assembly model and dimensions |
Different manufacturers may use similar-looking parts with different dimensions, mounting profiles or tolerances.
For replacement gripping inserts, links or hardware, provide the original manufacturer, clamp model, component dimensions and photographs. Include the existing part number whenever possible.
SGPE can review these details and help identify a compatible replacement option.
API Spec 7K and Type C Safety Clamp Safety Requirements
API Spec 7K covers drilling and well-servicing equipment, including Safety Clamps Not Used as Hoisting Devices.
The standard WA-C design falls within this non-hoisting equipment category. However, a standard reference does not automatically prove API Monogram licensing or product-specific certification.
Buyers should confirm the applicable requirements and available inspection documentation for the exact equipment offered.
Non-Hoisting Operating Limitations
A standard WA-C Safety Clamp must not lift, suspend or independently support a drill collar or tubular string.
It must not replace primary slips, elevators, spiders or other qualified load-support equipment. Crews must also not use it as a crane lifting clamp or a rated device for arresting freely falling tubulars.
The clamp provides secondary restraint within an approved handling arrangement. Qualified primary equipment must carry the tubular load.
Inspection, Maintenance and Storage
Before use, trained personnel should inspect the link bodies, gripping inserts, springs, hinge pins, retaining hardware and closing mechanism.
Cracks, deformation, worn teeth, damaged threads or missing parts require attention. If the clamp’s condition is uncertain, remove it from service until qualified personnel complete the necessary inspection or repair.
After use, remove drilling mud and debris, follow the manufacturer’s lubrication instructions and store the equipment to limit corrosion and mechanical damage.
Never install incompatible parts, use unapproved link combinations or modify the gripping assembly without technical authorization.
Why Choose SGPE as Your Type C Safety Clamp Supplier?
SGPE supplies tubular-handling equipment for oil and gas drilling, completion, workover and well servicing.
Its product range includes WA-C Type C Safety Clamps, smaller-diameter Type T Safety Clamps, drill collar slips and related gripping components.
For new equipment, SGPE can review pipe diameters, link quantities and operating requirements before quotation. For replacement projects, model numbers, drawings and photographs help identify differences between existing assemblies and potential alternatives.
Drilling contractors, offshore operators, workover companies and international equipment distributors can request complete clamps, compatible spare parts and project-specific documentation support.
Type C Safety Clamp Price and RFQ Support
The Type C Safety Clamp price depends on the selected WA-C configuration, quantity, material requirements and spare-parts package.
A 7-link clamp and an 18-link clamp contain different quantities of components, which affects their weight, packing and price. Inspection scope, surface protection and delivery destination can also influence the final offer.
For accurate pricing, send SGPE your tubular dimensions and purchasing requirements.
Information Required for a WA-C Safety Clamp Quotation
| RFQ Item | Information to Provide |
|---|---|
| Product | Type C Safety Clamp / WA-C |
| Tubular OD | Actual Diameter in Inches or Millimeters |
| Tubular Type | Drill Collar, Flush-Joint Pipe or Other Compatible Tubular |
| Preferred Configuration | Link Quantity, if Known |
| Order Quantity | Number of Complete Clamps |
| Spare Parts | Inserts, Links, Springs, Pins or Other Components |
| Application | Drilling, BHA Assembly, Offshore Operations or Workover |
| Technical Requirements | Material, Coating, Dimensions or Inspection |
| Documentation | Required Certificates or Reports |
| Delivery Destination | Country, City or Port |
| Replacement Reference | Original Model, Part Number, Drawing or Photographs |
If you need a WA-C Safety Clamp replacement, Type C Safety Clamp inserts, or a clamp for a specific drill collar size, include the existing equipment details in your enquiry.
SGPE can then review the specifications and prepare a project-specific quotation.
Frequently Asked Questions About Type C Safety Clamps
1. What is a Type C Safety Clamp used for in oil and gas drilling?
A Type C Safety Clamp is a mechanical oilfield tubular-handling tool that provides secondary anti-slip restraint for drill collars, flush-joint pipe and compatible smooth-body tubulars. Drilling crews use it during drill collar connection make-up and break-out, bottom hole assembly (BHA) preparation and stationary rig-floor handling.
The clamp is suitable for approved procedures on land drilling rigs, offshore drilling platforms, jack-up rigs and workover units. It helps resist unintended tubular movement while qualified drill collar slips or other primary support equipment carry the string load.
2. How does a WA-C Type C Safety Clamp work to prevent tubular slippage?
The WA-C Type C Safety Clamp uses hinged steel links, spring-loaded tapered gripping inserts and a manual screw-and-nut tightening mechanism. The operator closes the clamp around the tubular, allowing the inserts to establish gripping contact at multiple points along its circumference.
If the pipe moves downward relative to the clamp, the tapered inserts can develop additional wedging action and increase gripping resistance. This mechanical design requires no hydraulic or pneumatic power and provides supplementary restraint during approved drill collar handling, BHA assembly and connection operations.
3. What pipe sizes and link configurations are available for WA-C Type C Safety Clamps?
Standard WA-C Type C Safety Clamps cover tubular outside diameters from 3-3/4 to 15-5/8 in (95.3–396.9 mm). The series includes 12 common configurations with 7 to 18 links, allowing buyers to select an assembly for different drill collar sizes and compatible flush-joint tubulars.
Each configuration has a published gripping range, and some neighboring ranges overlap. For accurate selection, compare the actual pipe contact diameter with the WA-C Safety Clamp size chart. The final configuration must also suit the gripping surface, insert geometry and manufacturer’s operating requirements.
4. Which WA-C Type C Safety Clamp fits a 4-3/4 in, 6-3/4 in or 8 in drill collar?
The appropriate Drill Collar Safety Clamp depends on the actual outside diameter at the intended gripping position. According to the published WA-C size ranges, a 4-3/4 in drill collar falls within the 8-link configuration, a 6-3/4 in drill collar falls within the 10-link configuration, and an 8 in drill collar falls within the 11-link configuration.
These examples provide preliminary model matching for drilling and BHA preparation. However, spiral grooves, slip recesses and other surface features may affect gripping contact. Buyers should confirm the actual tubular dimensions and permitted gripping location before ordering.
5. Can a Type C Safety Clamp lift drill collars or replace drill collar slips?
No. A standard Type C Safety Clamp (WA-C) is a non-hoisting device designed to provide secondary restraint during oilfield tubular-handling operations. It must not lift, suspend or independently support drill collars, drill pipe or other tubular strings.
During drilling, BHA preparation and connection work, qualified drill collar slips, elevators or other suitable equipment must provide primary load support. The safety clamp adds restraint within the approved handling arrangement, but it is not a substitute for primary slips or a rated device for arresting freely falling tubulars.
6. Can a Type C Safety Clamp be used on spiral-grooved drill collars?
A Type C Drill Collar Safety Clamp may require a different gripping position or a specialized handling arrangement when used with spiral-grooved drill collars. Spiral grooves interrupt the continuous outer surface and can reduce the available contact area for conventional gripping inserts.
Before selecting a WA-C clamp, engineers should check the actual gripping diameter, available contact length and manufacturer-approved contact location. This is particularly important during drill collar connection work and BHA assembly on land or offshore drilling rigs. A matching nominal pipe OD alone does not guarantee safe compatibility.
7. Can WA-C Safety Clamps handle casing, wash pipe and completion tubulars?
The WA-C Safety Clamp primarily serves drill collars, flush-joint pipe and compatible smooth-body oilfield tubulars. Selected applications involving casing, wash pipe and completion tubulars may also be possible when their dimensions, materials and approved handling procedures permit conventional gripping inserts.
However, thin-walled casing, corrosion-resistant alloys, premium coatings and sensitive completion equipment may require specialized handling tools to prevent surface damage. For casing-running, well completion, workover or intervention projects, SGPE recommends reviewing the actual tubular OD, wall thickness, gripping surface and operating requirements before selecting a Type C clamp.
8. What is the difference between Type C, Type T and MP Safety Clamps?
Type C, Type T and MP Safety Clamps serve different tubular sizes and oilfield handling requirements. The WA-C Type C series mainly suits drill collars and compatible larger smooth-body pipe, with published configurations covering 3-3/4 to 15-5/8 in OD.
Type T Safety Clamps generally handle smaller production tubing and flush-joint tubulars, while MP Multi-Purpose Safety Clamps include several model groups for different drilling and workover pipe sizes.
Although their working ranges may overlap, these clamp families are not automatically interchangeable. Buyers should consider the actual gripping diameter, insert design and approved operating procedure when selecting equipment.
9. Are WA-C, CR, CL, CXL, CS and CM Type C Safety Clamps interchangeable?
Not automatically. WA-C, CR, CL, CXL, CS and CM Safety Clamps are model designations found in different oilfield equipment catalogs. Manufacturers may use different link geometries, gripping ranges, closure mechanisms and component dimensions.
For example, Keystone Energy Tools uses CR, CL and CXL designations, while Spectrum Drilling Tools uses CS, CM and CL. Their Type CL model families do not cover identical size ranges.
When requesting a Type C Safety Clamp replacement, provide the original manufacturer, complete part number, number of links, gripping OD range and photographs. SGPE can review these details to assess possible replacement options, but matching model names do not guarantee interchangeability.
10. Are Type C Safety Clamps API Spec 7K certified?
API Spec 7K covers drilling and well-servicing equipment, including the category Safety Clamps Not Used as Hoisting Devices. The standard WA-C Type C Safety Clamp serves this non-hoisting equipment category for approved oilfield tubular-handling applications.
However, an applicable API standard does not automatically establish that a particular clamp holds API Monogram licensing or product-specific certification. Buyers should confirm the applicable requirements and available inspection documentation for the exact model offered.
For drilling contractors, offshore projects and equipment distributors, SGPE can review project-specific documentation requirements during the quotation process.
11. Can SGPE supply WA-C Type C Safety Clamp spare parts and replacement components?
SGPE supports enquiries for complete WA-C Type C Safety Clamp assemblies and compatible replacement components, including tapered gripping inserts, springs, intermediate links, hinge pins, retaining pins and tightening hardware.
These components may require replacement during routine maintenance or equipment repair on drilling rigs, offshore platforms and workover units. Since different manufacturers can use similar-looking parts with different dimensions, buyers should not assume direct compatibility.
For Type C Safety Clamp spare parts, provide the existing clamp manufacturer, model, link quantity, part numbers and component photographs. SGPE can review the information and help identify suitable replacement options.
12. How can I get a Type C Safety Clamp price, technical specifications and quotation from SGPE?
To request a Type C Safety Clamp price or technical quotation, send SGPE the actual tubular outside diameter, pipe type, preferred WA-C link configuration, order quantity and delivery destination. You can also specify any material, inspection, documentation or spare-parts requirements.
For replacement equipment, include the existing manufacturer’s name, model, part number, technical drawings or clear photographs. This information helps SGPE assess dimensional compatibility and identify a suitable configuration for drilling, offshore or workover applications.
SGPE will review your technical and purchasing requirements, recommend an appropriate WA-C Safety Clamp configuration and provide a project-specific quotation.
Related Oilfield Tubular Handling Equipment
SGPE also supplies equipment that complements Type C Safety Clamps.
For smaller production tubing and flush-joint tubulars, see the Type T Safety Clamp.
For primary drill collar support, review DCS Type Drill Collar Slips.
For replacement gripping components, explore Tong Dies and Slip Inserts.
Each product serves a different function. The complete handling arrangement must match the pipe geometry and approved operating procedure.
Request a Type C Safety Clamp Quote from SGPE
Looking for a Type C Safety Clamp (WA-C) for drill collar handling, BHA assembly, flush-joint pipe, offshore drilling or workover operations? SGPE can help you select the right configuration for your oilfield project.
We supply WA-C Safety Clamps in 7–18-link configurations, covering tubular outside diameters from 3-3/4 to 15-5/8 in. We also support enquiries for complete assemblies, compatible replacement parts and dimensional cross-references for existing equipment.
For accurate model selection and pricing, please provide your actual tubular OD, tubular type, preferred link quantity, order quantity and delivery destination. You can also specify any special material, inspection or documentation requirements.
For replacement equipment, include the original manufacturer, model, part number, technical drawings or clear photographs. These details help us assess compatibility and identify suitable alternatives.
Email: info@sgpe.com
Tel / WhatsApp: +86 186-1599-5239
