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Hammer Union Manufacturer for High-Pressure Oilfield Applications
Hammer unions are high-pressure pipe connectors used in oil and gas drilling, well servicing, and industrial fluid transfer systems. Designed for quick connection and disconnection without specialized tools, hammer unions provide a secure, leak-proof seal in high-pressure and high-vibration environments. They are widely used in mud lines, cementing lines, fracturing lines, manifolds, and flowline systems where safety and pressure integrity are critical.
At Asian Sealing Products, we manufacture premium-quality hammer unions using high-strength forged steel, engineered to meet demanding oilfield service conditions. Each hammer union consists of three precision-machined components: the wing nut, male sub, and female sub. When assembled, these components create a tight, pressure-resistant metal-to-metal seal capable of handling up to 20,000 PSI cold working pressure.
Our hammer union are available in sizes from 1 inch to 12 inches and are suitable for standard service as well as sour gas applications. We strictly follow industry standards, including API RP 14E and NACE MR-01-75 to ensure corrosion resistance, operational safety, and long-term reliability in harsh environments. Whether you require standard figure hammer union or customized solutions for high-pressure oilfield operations, we deliver durable, performance-driven connections built for extreme conditions.
Industry standards
API RP-14E & NACE MR-01-75
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
Hammer Union
Hammer Union Manufacturer for High-Pressure Oilfield Applications
Hammer unions are high-pressure pipe connectors used in oil and gas drilling, well servicing, and industrial fluid transfer systems. Designed for quick connection and disconnection without specialized tools, hammer unions provide a secure, leak-proof seal in high-pressure and high-vibration environments. They are widely used in mud lines, cementing lines, fracturing lines, manifolds, and flowline systems where safety and pressure integrity are critical.
At Asian Sealing Products, we manufacture premium-quality hammer unions using high-strength forged steel, engineered to meet demanding oilfield service conditions. Each hammer union consists of three precision-machined components: the wing nut, male sub, and female sub. When assembled, these components create a tight, pressure-resistant metal-to-metal seal capable of handling up to 20,000 PSI cold working pressure.
Our hammer union are available in sizes from 1 inch to 12 inches and are suitable for standard service as well as sour gas applications. We strictly follow industry standards, including API RP 14E and NACE MR-01-75 to ensure corrosion resistance, operational safety, and long-term reliability in harsh environments. Whether you require standard figure hammer union or customized solutions for high-pressure oilfield operations, we deliver durable, performance-driven connections built for extreme conditions.
Industry standards
API RP-14E & NACE MR-01-75
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
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Hammer Union Types
Hammer unions are available in a wide range of types designed to handle different pressure ratings, temperature ranges, and service conditions in oil and gas operations. Each type is categorized by its size, connection profile, and pressure class, ensuring compatibility with specific pipeline systems. Asian Sealing Products offers Hammer Unions in both threaded and butt-welded end connections.
Hammer unions are available in a wide range of types designed to handle different pressure ratings, temperature ranges, and service conditions in oil and gas operations. Each type is categorized by its size, connection profile, and pressure class, ensuring compatibility with specific pipeline systems. Asian Sealing Products offers Hammer Unions in both threaded and butt-welded end connections.
Fig 50 Union
Fig 100 Union
Fig 200 Union
Fig 206 Union
Fig 211 Union
Fig 400 Union
Fig 600 Union
Fig 602 Union
Fig 1002 Union
Fig 1003 Union
Fig 1502 Union
Fig 2002 & 2202 Union
Your Trusted Partner for Reliable Sealing Solutions
Convenience
Quick and easy connection and disconnection without special tools
Security
Robust wing nut design for secure and vibration-resistant locking
Pressure Resistance
Designed to withstand high working pressures up to 20,000 PSI
Thermal Tolerance
Suitable for low to high temperature operating environments
Strength
Made from high-strength forged steel for superior mechanical strength
Hammer Union Applications
Hammer unions are extensively used in oil and gas operations to create secure, high-pressure, leak-proof pipe connections in fluid handling systems. These heavy-duty unions are designed for rapid assembly and disassembly, making them ideal for dynamic drilling and production environments. Engineered to withstand extreme pressure, temperature fluctuations, vibration, and corrosive environments, hammer unions deliver consistent sealing performance in both onshore and offshore applications. Their robust construction and pressure integrity make them a preferred choice for critical oilfield operations where operational safety, durability, and system efficiency are essential.
Hammer unions are extensively used in oil and gas operations to create secure, high-pressure, leak-proof pipe connections in fluid handling systems. These heavy-duty unions are designed for rapid assembly and disassembly, making them ideal for dynamic drilling and production environments. Engineered to withstand extreme pressure, temperature fluctuations, vibration, and corrosive environments, hammer unions deliver consistent sealing performance in both onshore and offshore applications. Their robust construction and pressure integrity make them a preferred choice for critical oilfield operations where operational safety, durability, and system efficiency are essential.
Oil and Gas
- Flow line connections
- High-pressure pipe joints
Drilling Operations
- Mud line connections
- Cementing line fittings
Pipeline
- Temporary and permanent pipeline connections
- Maintenance and repair joints
Well Servicing
- High-pressure test lines
- Workover and stimulation systems
Hydraulic Fracturing
- Frac pump connections
- High-pressure manifold joints
Refining
- Process line connections
- High-pressure fluid transfer systems
Petrochemical
- Hose and pipe connections
- Pressure containment systems
Power Generation
- High-pressure auxiliary piping
- Turbine support line connections
Mining
- Slurry and water transfer line connections
- High-pressure hose fittings
Marine
- Deck pipeline connections
- High-pressure hose-to-pipe joints
Hammer Union Materials
Hammer unions are manufactured from high-strength forged materials to ensure superior pressure resistance, mechanical strength, and long-term durability in demanding oilfield and industrial environments. The selection of hammer union material depends on operating pressure, temperature, fluid composition, and corrosion exposure.
For standard, high-pressure, and sour gas service applications, hammer unions are produced using API-grade and NACE-compliant materials to maintain structural integrity and prevent corrosion-related failures.
Ring gaskets are manufactured using various materials based on the application’s requirements. The material selection depends on factors such as the type of fluids being sealed, operating conditions (including temperature and pressure), and the overall environment. Here are some common materials used for manufacturing ring gaskets:
Carbon Steel
Used for standard oilfield applications, offering strong mechanical performance under normal pressure and temperature conditions.
Alloy Steel
Suitable for high-pressure and high-temperature service, providing enhanced strength and wear resistance.
Stainless Steel
Delivers excellent corrosion resistance for offshore, marine, and chemically aggressive environments.
Sour Service Steel (NACE Compliant)
Manufactured in accordance with NACE International standards for H₂S and CO₂ environments, preventing sulfide stress cracking and corrosion-related failures
Duplex and Super Duplex
Provide high strength and superior resistance to pitting and chloride corrosion in extreme offshore conditions.
Product Details
Material selection
Asian Sealing Products offers hammer unions manufactured from high-quality carbon steel and alloy steel, carefully selected to withstand extreme pressure, temperature variations, and demanding oilfield conditions. Our materials are chosen to ensure strength, durability, and long-term sealing performance in high-pressure applications.
For detailed material specifications, pressure ratings, or sour service requirements, contact our sales team for expert guidance and technical support.
Sealing Design Types
Hammer unions are available with different sealing designs based on pressure rating and service conditions, ensuring leak-proof performance in oilfield and high-pressure fluid systems.
Low-Pressure Hammer Union
Designed with a metal-to-metal seal formed by precision-machined conical and spherical surfaces. Suitable for standard pressure applications where reliable sealing and quick connection are required.
Medium-Pressure Hammer Union
Features a metal-to-metal seal combined with an additional O-ring to enhance sealing integrity. This dual-seal design improves leak resistance under moderate pressure conditions.
High-Pressure Hammer Union
Utilizes a lip-type seal ring positioned inside the female union to provide superior sealing performance. Engineered for high-pressure oilfield applications, this design ensures maximum pressure containment and operational safety.
Types of Hammer Union End Connections offered
Asian Sealing Products offers hammer unions with both threaded and butt-weld end connections, depending on the model and application requirements.
Threaded End Connections
Designed for quick installation and easy disassembly, threaded hammer unions are ideal for temporary or frequently serviced high-pressure flowline systems.
Butt-Weld End Connections
Butt-weld hammer unions provide a permanent, high-integrity connection suitable for critical high-pressure and high-temperature applications where enhanced structural strength is required.
For specific end connection types, pressure ratings, or customization options, contact our technical team for detailed specifications.
Maintenance on Hammer Unions
Proper maintenance of hammer unions is critical to ensure safe operation, pressure integrity, and long service life in high-pressure oil and gas applications. Regular inspection and preventive care help avoid leaks, equipment failure, and costly downtime.
Inspection & Wear Check
Periodically inspect the wing nut, male sub, and female sub for wear, corrosion, cracks, or deformation. Damaged components should be replaced immediately to maintain sealing performance.
Sealing Surface Care
Keep metal-to-metal sealing surfaces clean and free from dirt, rust, or debris. Even minor contamination can compromise the seal and cause leakage under pressure.
Thread Lubrication
Apply suitable anti-seize compound to threads and contact areas to prevent galling and ensure smooth assembly and disassembly, especially in high-pressure service conditions.
Seal & Alignment Verification
Before reinstallation, check for thread damage, proper alignment, and seal integrity to ensure correct engagement and secure pressure containment.
Routine hammer union maintenance enhances operational safety, reduces unplanned shutdowns, and extends equipment lifespan in demanding oilfield environments.
Threads and contact areas should be lightly lubricated with appropriate anti-seize compounds to prevent galling and ease repeated assembly and disassembly. It is also recommended to check for thread damage, misalignment, and seal integrity before reinstallation.
Routine maintenance ensures maximum reliability, minimizes downtime, and extends the overall service life of hammer unions in demanding operating environments.
Why Choose Asian Sealing Products Hammer Union?
Asian Sealing Products hammer unions are engineered to deliver high-pressure performance, leak-proof sealing, and long-term reliability in demanding oil and gas applications. Manufactured from high-grade forged steel and precision-machined for accuracy, our hammer unions are built to withstand extreme pressure, temperature variations, and harsh field conditions.
We offer a comprehensive range of hammer union sizes, figure types, and pressure ratings, including customized solutions tailored to specific drilling, completion, and production requirements. Each product is designed to ensure secure metal-to-metal sealing, operational safety, and extended service life.
Our hammer unions are manufactured in compliance with international quality standards and sour service requirements, ensuring consistent performance, reduced maintenance downtime, and enhanced safety in critical oilfield operations.
Choose Asian Sealing Products for durable, high-performance hammer unions trusted for reliability in high-pressure environments.
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Answers to all your possible questions.
What is a hammer union used for?
A hammer union is a high-pressure pipe connection used in oil and gas drilling, cementing, fracturing, and well servicing operations. It allows quick assembly and disassembly of flowlines, manifolds, and high-pressure piping systems while maintaining a secure, leak-proof seal.
What pressure ratings are available for hammer unions?
Hammer unions are available in various pressure ratings ranging from low-pressure models to high-pressure designs up to 20,000 PSI cold working pressure, depending on the figure type and material grade.
What materials are hammer unions made from?
Hammer unions are typically manufactured from forged carbon steel, alloy steel, stainless steel, and NACE-compliant materials for sour gas service applications. Material selection depends on pressure, temperature, and corrosion requirements.
What is the difference between low, medium, and high-pressure hammer unions?
1. Low-pressure hammer unions use a metal-to-metal sealing design. 2. Medium-pressure hammer unions combine metal-to-metal sealing with an O-ring for enhanced sealing integrity. 3. High-pressure hammer unions use a lip-type seal ring for superior pressure containment.
Are hammer unions suitable for sour gas service?
Yes. Sour service hammer unions are manufactured using NACE-compliant materials to resist hydrogen sulfide (H₂S) corrosion and sulfide stress cracking, making them safe for corrosive oilfield environments.
What type of end connection does Asian Sealing Products offer in their Hammer Union?
Asian Sealing Products Hammer unions will be available in both Threaded, and Butt-welded end connections. (May vary depending on the model). Materials and the model of the hammer union will change according to the above factors.
What sizes are available in hammer unions?
Hammer unions are commonly available in sizes ranging from 1 inch to 12 inches, depending on the application and pressure rating requirements.
Is there Colour coding done on Hammer Unions?
All models of hammer unions are color-coded; this allows quick identification on the field. All unions intended for sour gas service will be painted Olive green, stamped with “NACE MR-0175” or “SOUR GAS” on the body of the wing nut.
How often should hammer unions be inspected?
Hammer unions should be inspected before installation and periodically during operation. Regular inspection of threads, sealing surfaces, and components helps prevent leaks and ensures long-term reliability.
What safety precautions to follow when using hammer unions?
Hammer unions should always be tightened firmly to avoid any major leaks. It is always essential to pick the right hammer union for your application and pressure needs. When connecting and disconnecting the unions, the personnel should not use excessive force.
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