Description
Oilfield Hammer Union for High Pressure Flowline Service
SGPE supplies Oilfield Hammer Union products for drilling, cementing, fracturing, well servicing, pressure testing, manifold connection and high pressure flowline systems. The product range covers threaded hammer union, welding hammer union, H2S service hammer union, FMC WECO type hammer union, SPM type hammer union, FIG 602 hammer union, FIG 1002 hammer union, FIG 1502 hammer union and other high pressure oilfield union fittings.
An oilfield hammer union gives field crews a fast and secure way to connect petroleum flowlines. A complete set normally includes a wing nut, male sub, female sub and sealing ring. With this compact structure, operators can make up or break out the connection quickly on drilling rigs, cementing units, fracturing skids, well service packages, choke and kill manifolds, mud manifolds, well testing lines and mobile pressure pumping equipment.
SGPE offers common sizes from 1 inch to 4 inch, with cold working pressure from 1,000 psi to 20,000 psi, equal to about 7 MPa to 140 MPa. Available figure numbers include FIG 100, FIG 200, FIG 206, FIG 400, FIG 402, FIG 602, FIG 1002, FIG 1502, FIG 2002 and FIG 2202. For sour oil and gas wells, SGPE can also provide H2S service unions according to project requirements.
Need FIG 602, FIG 1002 or FIG 1502 hammer unions for oilfield flowline service? Send SGPE your size, pressure rating, connection type, service fluid, H2S condition and quantity. Our team will review the working condition and recommend a suitable model.
Oilfield Hammer Union Overview
A reliable high pressure union must handle vibration, impact load, drilling mud, cement slurry, fracturing fluid, produced fluid, sour gas and frequent connection cycles. Therefore, SGPE focuses on material strength, accurate machining, sealing stability, field identification and interchangeability.
Each union uses a forged steel body, precision machined threads and durable seal rings. The rigid ACME thread helps crews tighten or dismantle the connection without special tools. Meanwhile, clear forged marks and pressure color coding help operators identify the correct union faster on the rig site.
Many customers use SGPE products as FMC hammer union replacement, WECO hammer union equivalent, SPM hammer union equivalent, flowline hammer union, cementing hammer union, fracturing hammer union, API 16C flowline union and H2S service hammer union. SGPE supports oilfield distributors, drilling contractors, pressure pumping companies, well service companies, petroleum equipment manufacturers and EPC projects worldwide.
Main Types of SGPE Oilfield Hammer Unions
Different field layouts require different connection designs. SGPE provides three main hammer union types for oilfield pressure systems: threaded type, welding type and H2S service type.
Threaded Oilfield Hammer Union
A threaded oilfield hammer union suits removable flowline systems that require fast installation and convenient maintenance. It uses threaded connection ends and supports quick make-up on drilling rigs, well service units, cementing skids, fracturing equipment, manifold systems and pressure test lines.
Common threaded models include FIG 100, FIG 200, FIG 206, FIG 400, FIG 402, FIG 602, FIG 1002 and FIG 1502. Customers often choose these unions for drilling mud lines, cementing pipelines, medium pressure service lines, temporary high pressure pipe connections and equipment that moves between well sites.
Because the threaded structure supports fast replacement, it helps reduce maintenance time during rig-up, rig-down and flowline adjustment. It also gives field crews a practical option when the piping layout changes frequently.
Welding Oilfield Hammer Union
A welding oilfield hammer union connects to pipelines through welded ends. This structure creates a strong and stable connection for fixed flowline systems, high pressure manifold assemblies and pressure pumping equipment.
SGPE welding hammer unions cover common models such as FIG 206, FIG 602, FIG 1002, FIG 1502 and FIG 2002. Service companies often use them in cementing units, fracturing units, high pressure mud manifolds, choke and kill manifolds, well testing lines and pressure control systems.
During production, SGPE controls welding groove quality, machining accuracy and material compatibility. Customers can also request special marking, painting, packing and inspection documents according to project requirements.
H2S Service Oilfield Hammer Union
An H2S service oilfield hammer union works in sour oil and gas well environments. These applications require suitable material selection, reliable sealing design and stricter manufacturing control. SGPE can provide H2S welding unions and sour service hammer unions for projects that require H2S resistance and sour service compatibility.
Common sour service models include FIG 602, FIG 1002, FIG 1502, FIG 2202, Tr120×6, Tr150×6 and Tr180×8. These unions can support working pressures from 5,000 psi to 15,000 psi, depending on model, size and operating condition.
For sour gas service, SGPE can manufacture hammer unions according to NACE MR0175 requirements when the project specifies this requirement. This option helps customers match H2S resistance, sealing reliability and high pressure connection safety in demanding petroleum environments.
Key Features of SGPE Oilfield Hammer Union
Reliable Sealing Performance
SGPE oilfield hammer unions use quality rubber compound sealing rings. These seal rings help improve load bearing capacity, sealing stability and erosion resistance. They also protect the connection area from high velocity drilling fluid, cement slurry, fracturing fluid and other oilfield service media.
Different pressure ratings and service fluids require different sealing methods. Therefore, SGPE selects the sealing structure according to figure number, size, working pressure, service fluid, temperature and H2S condition. A drilling mud line union, cementing union, fracturing union and sour service union may require different sealing designs.
Stable sealing performance helps reduce leakage risk, maintain pressure integrity and extend service life. It also helps customers reduce maintenance frequency in demanding field operations.
Fast Installation and Dismantling
Hammer unions use wing nuts and rigid ACME threads to support quick installation. Field crews can make up or break out the connection with a hammer, without special installation tools. This design saves time during rig-up, rig-down, flowline installation, manifold maintenance and well service equipment connection.
When operators connect drilling mud lines, cementing lines, fracturing lines or pressure testing lines, SGPE unions help them complete the work quickly and safely.
High Interchangeability
SGPE manufactures hammer unions in the English system. Many models can interchange with international oilfield products of the same figure number, size and pressure rating. Seal rings can also match many FMC WECO or SPM equivalent products, depending on model and service condition.
This interchangeability helps customers reduce spare parts pressure. It also makes replacement easier when crews maintain existing drilling, cementing, fracturing or well service equipment. For international projects, this feature becomes useful because contractors often operate mixed fleets of flowline fittings, manifolds and pressure pumping equipment.
Clear Forged Markings
SGPE forms size and pressure marks on the wing nut through die forging. These marks help operators identify the union quickly on site. Clear marks can show nominal size, figure number, connection type and pressure rating.
Correct identification matters in high pressure field operation. A wrong union selection may cause leakage, equipment damage or safety risk. Therefore, SGPE uses visible markings and color coding to support safer rig site management.
Advanced Machining and Inspection
SGPE uses precision NC machine tools to machine spherical adapters. We also use special cutting tools to machine LP threads. These machining methods help improve sealing accuracy, thread engagement and connection stability.
Wing nuts use NC machining to achieve better dimensional control, high strength and good load bearing performance. Welding materials and welding grooves can conform to API 16C project requirements when specified. For sour gas applications, SGPE can manufacture hammer unions according to NACE MR0175 and related project requirements.
During production, SGPE controls material inspection, forging quality, thread quality, sealing surface finish, dimensional accuracy and final inspection. This process helps ensure stable product performance in petroleum drilling, cementing, fracturing and well service environments.
Main Technical Specifications for FMC WECO Type Oilfield Hammer Union
The following tables list common SGPE oilfield hammer union models for high pressure flowline connection. Final selection should match size, working pressure, test pressure, connection type, service fluid, temperature, H2S condition and project standard.
Common Threaded Oilfield Hammer Union Specifications
This table covers common conventional threaded oilfield hammer union models for removable high pressure flowline connection, drilling mud lines, cementing pipelines, pressure testing lines, well service systems and temporary oilfield pipe connections.
| Description | Model | Rated Working Pressure | Available Size |
|---|---|---|---|
| Conventional Threaded Union | FIG 100 | 1,000 psi / 7 MPa | 2 in |
| Conventional Threaded Union | FIG 200 | 2,000 psi / 14 MPa | 1 in, 2 in |
| Conventional Threaded Union | FIG 206 | 2,000 psi / 14 MPa | 4 in |
| Conventional Threaded Union | FIG 400 | 4,000 psi / 28 MPa | 1 in |
| Conventional Threaded Union | FIG 402 | 4,000 psi / 28 MPa | 3 in |
| Conventional Threaded Union | FIG 602 | 6,000 psi / 42 MPa | 1 in, 1-1/2 in, 2 in, 3 in, 4 in |
| Conventional Threaded Union | FIG 1002 | 10,000 psi / 70 MPa | 1 in, 1-1/2 in, 2 in, 3 in, 4 in |
| Conventional Threaded Union | FIG 1502 | 15,000 psi / 105 MPa | 1 in, 1-1/2 in, 2 in, 3 in |
Welding and H2S Service Oilfield Hammer Union Specifications
This table covers SGPE welding hammer unions and H2S service hammer unions for fixed high pressure flowline systems, manifold assemblies, cementing units, fracturing equipment, pressure control systems and sour oil and gas well applications.
| Description | Model | Rated Working Pressure | Available Size |
| Welding Union | FIG 206 | 2,000 psi / 14 MPa | 2 in, 3 in, 4 in |
| Welding Union | FIG 602 | 6,000 psi / 42 MPa | 2 in, 3 in, 4 in |
| Welding Union | FIG 1002 | 10,000 psi / 70 MPa | 2 in, 3 in, 4 in |
| Welding Union | FIG 1502 | 15,000 psi / 105 MPa | 2 in, 3 in |
| Welding Union | FIG 2002 | 20,000 psi / 140 MPa | 2 in, 3 in |
| H2S Welding Union | FIG 602 | 5,000 psi / 35 MPa | 2 in, 3 in, 4 in |
| H2S Welding Union | FIG 602 | 6,000 psi / 42 MPa | 2 in, 3 in |
| H2S Welding Union | FIG 1002 | 7,500 psi / 53 MPa | 2 in, 3 in, 4 in |
| H2S Welding Union | FIG 1502 | 10,000 psi / 70 MPa | 2 in, 3 in, 4 in |
| H2S Welding Union | FIG 2202 | 15,000 psi / 105 MPa | 2 in, 3 in, 4 in |
| H2S Welding Union | Tr120×6 | 5,000 psi / 35 MPa | 2 in |
| H2S Welding Union | Tr150×6 | 5,000 psi / 35 MPa | 3 in |
| H2S Welding Union | Tr180×8 | 5,000 psi / 35 MPa | 4 in |
Not sure which FIG number fits your oilfield flowline system? Send SGPE your pressure rating, line size, connection type and service condition. Our team will help you select the right hammer union for drilling, cementing, fracturing, well servicing, pressure testing or sour service applications.
Common Oilfield Hammer Union Models
FIG 100 Oilfield Hammer Union
FIG 100 oilfield hammer union suits low pressure service lines. It often works in low pressure drilling fluid transfer, oilfield water injection support lines and auxiliary well service pipelines. SGPE can provide FIG 100 threaded hammer union for basic petroleum flowline connection.
FIG 200 Oilfield Hammer Union
FIG 200 oilfield hammer union supports 2,000 psi working pressure. Customers often use it in low to medium pressure service lines for drilling mud, oilfield water, well service fluid and compatible petroleum operation media.
FIG 206 Oilfield Hammer Union
FIG 206 oilfield hammer union supports 2,000 psi working pressure. SGPE can provide both threaded and welding types. The welding type works well in fixed pipeline systems, cementing support equipment, mud manifold lines and well service units where customers need a stronger end connection.
FIG 400 and FIG 402 Oilfield Hammer Union
FIG 400 oilfield hammer union and FIG 402 oilfield hammer union work in 4,000 psi applications. These models suit medium pressure drilling support lines, well service flowlines, mud circulation systems and pressure connection equipment.
FIG 602 Oilfield Hammer Union
FIG 602 oilfield hammer union is one of the most common models in petroleum service. It supports 6,000 psi working pressure in conventional service. SGPE supplies FIG 602 threaded union, FIG 602 welding union and FIG 602 H2S service union.
Customers often use FIG 602 hammer union in drilling mud lines, cementing lines, manifold systems, well servicing units and high pressure flowline systems. This model offers a practical balance between pressure capacity, availability and field interchangeability.
FIG 1002 Oilfield Hammer Union
FIG 1002 oilfield hammer union supports 10,000 psi working pressure in conventional service. It works in demanding high pressure pipeline systems, including cementing, well servicing, pressure testing and manifold connection applications.
For sour service projects, SGPE can also provide H2S FIG 1002 hammer unions with a rated working pressure of 7,500 psi, depending on size and project requirements.
FIG 1502 Oilfield Hammer Union
FIG 1502 oilfield hammer union is widely used in high pressure petroleum service. It supports 15,000 psi working pressure in conventional service. Many fracturing lines, cementing lines, high pressure manifolds, pressure test lines and well service systems use FIG 1502 unions.
SGPE provides FIG 1502 threaded union, FIG 1502 welding union and FIG 1502 H2S welding union. For sour service, FIG 1502 H2S welding union can support 10,000 psi working pressure, depending on size and project requirements.
FIG 2002 Oilfield Hammer Union
FIG 2002 welding hammer union supports 20,000 psi working pressure. It suits ultra high pressure petroleum service systems, high pressure test units, special fracturing equipment and demanding well service applications. SGPE provides FIG 2002 welding union in 2 inch and 3 inch sizes.
FIG 2202 H2S Oilfield Hammer Union
FIG 2202 H2S hammer union supports sour service applications up to 15,000 psi working pressure. It works in demanding H2S oil and gas well environments where customers need high pressure capacity, sour service compatibility and stable sealing performance.
Oilfield Applications of SGPE Hammer Union
SGPE hammer unions serve petroleum drilling and well service pressure connection systems. Typical applications include drilling mud line connection, cementing line connection, fracturing flowline connection, well testing pipeline connection, choke and kill manifold connection, high pressure manifold assembly, mud manifold connection, pressure testing equipment, coiled tubing support lines, sour gas pipeline connection and temporary high pressure flowline systems.
Because these unions install quickly and disconnect easily, service companies also use them on skid-mounted units, trailer-mounted pumping units, cementing trucks, fracturing skids, well service packages and mobile pressure pumping equipment. When crews move equipment between well sites, the quick connection design helps reduce rig-up time and improve operating efficiency.
Materials and Manufacturing Control
SGPE selects suitable forged steel material according to working pressure, service environment and project requirements. Forging improves material density and strength, so the union can perform better under high pressure, repeated impact and harsh petroleum field conditions.
After forging, SGPE machines the key components with precision equipment. These components include wing nut, male sub, female sub, spherical adapter and sealing area. Accurate machining helps improve thread engagement, sealing surface quality and assembly fit.
For welding unions, SGPE controls welding groove dimensions and welding preparation. For sour service unions, SGPE pays close attention to material requirements, hardness control and sour service compatibility. This helps support stable performance in H2S oil and gas well environments.
Inspection may include dimensional inspection, thread inspection, visual inspection, material verification, sealing surface inspection and pressure-related checks according to order requirements. Customers can request additional inspection documents when the project requires them.
Color Coding and Field Identification
SGPE hammer unions use color coding to identify different pressure ratings. This rig-site-friendly design helps operators select the right union faster. In busy petroleum operations, color recognition and forged marks can reduce selection errors.
The wing nut carries clear size and pressure marks. These marks do not disappear easily because they form during forging. Compared with simple surface printing, forged marks provide better durability during rough handling, drilling mud exposure, rain, sand, outdoor storage and repeated transportation.
Customers can request special painting, marking, tag plates, packing marks and documentation according to drilling contractor, oilfield service company or project requirements.
How to Select the Right Oilfield Hammer Union
To choose a suitable oilfield hammer union, customers should confirm size, working pressure, connection type, service medium, H2S condition and project requirements before purchase.
First, the size must match the pipeline, manifold, pump unit or well service equipment connection. SGPE supplies common sizes from 1 inch to 4 inch.
Second, the working pressure must match or exceed the system requirement. Common pressure ratings include 1,000 psi, 2,000 psi, 4,000 psi, 5,000 psi, 6,000 psi, 7,500 psi, 10,000 psi, 15,000 psi and 20,000 psi.
Third, the connection type should match the field layout. Threaded hammer unions suit removable connections, while welding hammer unions suit fixed flowline systems, manifold assemblies and high pressure pumping equipment.
In addition, the service medium also matters. Drilling mud, cement slurry, fracturing fluid, oilfield water, produced fluid, gas and sour gas may require different sealing materials and union structures. If the well contains H2S, customers should provide sour service requirements before model selection.
Finally, customers should confirm applicable standards, inspection requirements, quantity and destination. With this information, SGPE can recommend a suitable figure number, pressure rating, sealing structure and connection type.
Why Choose SGPE Oilfield Hammer Union
SGPE focuses on oilfield equipment and petroleum machinery supply. We understand that hammer unions must perform reliably in harsh drilling and well service conditions. Therefore, we combine strong materials, accurate machining, practical design and flexible model coverage.
Customers choose SGPE because we offer a wide product range, common FIG models, threaded and welding options, H2S service options, clear markings, good interchangeability and competitive manufacturing support.
SGPE can support oilfield distributors, drilling contractors, well service companies, pressure pumping companies, petroleum equipment manufacturers and EPC companies. Whether you need standard unions for stock, replacement fittings for maintenance, or project-based high pressure unions for equipment assembly, SGPE can help you select the right product.
Related Oilfield Products and Solutions
For a complete oilfield flowline or pressure control package, customers may also need high pressure manifolds, choke and kill manifolds, cementing equipment, fracturing equipment, oilfield flowline products, pressure control equipment and related petroleum machinery parts.
SGPE can help customers match hammer unions with suitable pipeline fittings, manifold equipment and well service components according to the project condition. This helps buyers build a more complete procurement plan and reduce compatibility problems between different pressure connection products.
Packaging and Delivery
SGPE packs oilfield hammer unions according to size, weight, order quantity and shipping method. We can use wooden cases, pallets or suitable export packaging to protect the products during transportation.
Before shipment, SGPE checks product markings, quantity, model, size and packaging details. We can also provide product photos, packing lists and related documents when required. For long-term customers and distributors, SGPE can support batch supply and regular replenishment.
Request a Quote for Oilfield Hammer Union
If you need oilfield hammer union, high pressure hammer union, FMC WECO type hammer union, SPM type hammer union, FIG 602 hammer union, FIG 1002 hammer union, FIG 1502 hammer union, welding hammer union, threaded hammer union or H2S service hammer union, SGPE can provide technical support and quotation.
E-Mail:
info@sgpe.com
Frequently Asked Questions About Oilfield Hammer Union
1. What is an oilfield hammer union?
An oilfield hammer union is a quick connection fitting for high pressure petroleum pipelines and flowline systems. It normally includes a wing nut, male sub, female sub and sealing ring. Field crews use it to connect or disconnect drilling mud lines, cementing lines, fracturing flowlines, well service lines and manifold pipelines quickly.
Compared with ordinary pipe fittings, this connection saves installation time and supports frequent make-up and break-out operations. Therefore, drilling rigs, pressure pumping units, cementing trucks, fracturing skids and well service equipment often use it.
2. What is an oilfield hammer union used for?
Oilfield crews use hammer unions in petroleum pressure systems that need quick connection and reliable sealing. Common uses include drilling mud circulation, cementing service, hydraulic fracturing, well testing, pressure testing, choke and kill manifold connection, mud manifold connection, coiled tubing support lines and temporary high pressure flowlines.
During rig-up, rig-down and field maintenance work, the union helps crews connect flowlines faster and reduce downtime on the well site.
3. What types of oilfield hammer unions does SGPE supply?
SGPE supplies threaded hammer unions, welding hammer unions and H2S service hammer unions for oilfield applications. Our range also covers FMC WECO type hammer unions, SPM type hammer unions, flowline hammer unions, cementing hammer unions, fracturing hammer unions and high pressure oilfield union fittings.
Threaded unions suit removable pipeline connections and frequent maintenance. Welding unions suit fixed flowline systems, manifold assemblies and pressure pumping equipment. H2S service unions suit sour oil and gas well environments.
4. What sizes and pressure ratings are available?
SGPE supplies common sizes from 1 inch to 4 inch. The available size depends on the figure number, pressure rating, connection type and service condition.
The working pressure range covers 1,000 psi to 20,000 psi, equal to about 7 MPa to 140 MPa. Common pressure ratings include 2,000 psi, 4,000 psi, 6,000 psi, 7,500 psi, 10,000 psi, 15,000 psi and 20,000 psi. Popular models include FIG 602, FIG 1002, FIG 1502, FIG 2002 and FIG 2202 H2S hammer union.
5. How do I choose the right hammer union figure number?
You should choose the figure number according to working pressure, line size, end connection, service fluid, temperature, H2S condition and project standard. For example, FIG 602 often works in 6,000 psi conventional service. FIG 1002 suits many 10,000 psi high pressure systems. FIG 1502 supports 15,000 psi conventional service in fracturing, cementing and pressure testing applications.
If the project involves sour gas or H2S, confirm sour service requirements before selecting the model. SGPE can review your working condition and recommend a suitable threaded, welding or H2S service union.
6. What is a FIG 602 oilfield hammer union?
A FIG 602 oilfield hammer union is a common union fitting for 6,000 psi conventional service. Contractors often use it in drilling mud lines, cementing pipelines, manifold systems, well service lines and high pressure flowline connections.
SGPE supplies FIG 602 threaded unions, FIG 602 welding unions and FIG 602 H2S service unions. This model offers a good balance between pressure capacity, field availability and interchangeability.
7. What is a FIG 1002 oilfield hammer union?
A FIG 1002 oilfield hammer union is a high pressure union for 10,000 psi conventional service. It suits cementing lines, pressure testing lines, high pressure well service flowlines, manifold connections and other demanding petroleum applications.
For sour service projects, SGPE can also provide H2S FIG 1002 hammer unions with suitable pressure ratings and material requirements according to the working condition.
8. What is a FIG 1502 oilfield hammer union?
A FIG 1502 oilfield hammer union is one of the most widely used high pressure hammer unions in petroleum service. It supports 15,000 psi conventional working pressure and often works in fracturing flowlines, cementing lines, pressure testing units, high pressure manifolds and well service systems.
Many buyers search for FIG 1502 hammer union, WECO FIG 1502 union, FMC 1502 hammer union equivalent and SPM 1502 hammer union because this model appears frequently in pressure pumping equipment. SGPE can supply threaded, welding and H2S service options according to project requirements.
9. What is the difference between threaded hammer union and welding hammer union?
A threaded hammer union uses threaded ends, so it suits removable oilfield pipeline connections. Crews often choose it for drilling rigs, pressure test lines, temporary flowline systems, well service units and equipment that needs frequent assembly or maintenance.
A welding hammer union connects to the pipeline through welded ends. This structure suits fixed flowline systems, high pressure manifold assemblies, cementing units, fracturing units and pressure pumping equipment. When customers need stronger permanent pipeline integration, this type often provides a better option.
10. Can SGPE provide H2S service hammer unions for sour gas wells?
Yes. SGPE can provide H2S service hammer unions and sour service welding unions for oil and gas wells that contain hydrogen sulfide. Common H2S models include FIG 602, FIG 1002, FIG 1502, FIG 2202, Tr120×6, Tr150×6 and Tr180×8.
Sour service applications require careful material selection, suitable sealing design and stricter manufacturing control. When the project specifies NACE MR0175 requirements, SGPE can manufacture the union according to the required sour service condition. Customers should provide H2S content, working pressure, temperature, service fluid and project standard before selection.
11. Are SGPE hammer unions interchangeable with FMC WECO or SPM type products?
Many SGPE hammer unions follow common international oilfield figure numbers and English system dimensions. Therefore, they can match many FMC WECO type hammer unions and SPM type hammer unions of the same figure number, size and pressure rating.
However, customers should always confirm the exact figure number, pressure rating, end connection, sealing structure and service condition before installation. This matters especially for high pressure service, H2S service, sour gas wells, fracturing flowlines and manifold systems. SGPE can check drawings, photos or existing product markings to help confirm compatibility.
12. What information should I provide when requesting an oilfield hammer union quotation?
To get a faster and more accurate quotation, please send SGPE the required figure number, size, working pressure, connection type, service medium, temperature, H2S condition, quantity and destination port. If you have drawings, photos, old product markings or replacement samples, you can also share them with us.
For example, you can request FIG 602 oilfield hammer union for drilling mud line service, FIG 1002 hammer union for pressure testing, FIG 1502 hammer union for fracturing flowline connection, or H2S hammer union for sour gas service. SGPE will review your working condition and recommend a suitable model for your oilfield project.
