Blaze Through the basics
Hammer Unions FIG 1502 | 602 | 1002 | 200 | 2202 And More
Table of Contents
In the demanding world of oil and gas, reliable and robust connections are crucial for safe and efficient operations. Hammer unions play a vital role in these connections, providing quick and secure joining of pipes and equipment. Blaze Sales & Service offers a comprehensive range of high-performance hammer unions designed to meet the rigorous demands of the oil and gas industry. This blog post explores the features, types, and applications of these essential components
What are Hammer Unions?
Hammer unions are specialized pipe fittings designed for rapid assembly and disassembly in various fluid transfer applications, particularly in the oil and gas sector. Their robust construction and unique design allow for high-pressure service and frequent make-up and break-out, making them ideal for challenging environments.
Blaze Sales and Service supplies high-quality hammer unions made from forged alloy steel, ensuring durability and performance. These unions cater to both standard and sour service environments, meeting a wide range of operational needs.
Key Features of Hammer Unions
- Forged Alloy Steel Construction: Manufactured from high-quality forged alloy steel, ensuring exceptional strength, durability, and resistance to harsh operating conditions. Suitable for both standard and sour service environments.
- Wide Range of Sizes and Pressure Ratings: Available in sizes from 1” to 12” and pressure ratings from 500 PSI to 20,000 PSI, catering to diverse application requirements.
- Interchangeability: Compatible with commonly used hammer union designs worldwide (WECO style), simplifying replacement and maintenance.
- Various End Connections: Offered with API line pipe threads as standard and butt weld ends upon customer specification (with required pipe schedule details).
- Sour Gas Service Compliance: Designed for sour gas applications, adhering to the latest NACE specifications to prevent sulfide stress cracking.
- Three-Lug Nut Design: All hammer union nuts feature three hammer lugs for secure and efficient tightening and loosening.
Sealing Mechanisms In Our Hammer Unions
- Low Pressure: Metal-to-metal seal between the conical and spherical surfaces of the male and female subs.
- Medium Pressure: In addition to the metal-to-metal seal, an O-ring is provided in the male sub.
- High Pressure: A lip-type seal ring in the female sub provides the primary seal, protecting the secondary metal-to-metal seal from corrosion and turbulence. Viton seals are used for sour service applications.
Sour Service: Viton seals for enhanced chemical resistance.
Types of Hammer Unions
Threaded and Butt-Weld Connections
Hammer unions are available in threaded and butt-weld configurations, allowing compatibility with various pipeline systems. Butt-weld connections require specifying the pipe schedule during ordering.
Hammer Union Components
- Male Sub: Houses the male thread or butt weld end.
- Female Sub: Contains the female thread or butt weld end and the integrated sealing mechanism.
- Seal Ring/O-Ring: Provides the primary seal, preventing leaks.
- Nut: Secures the connection by engaging with the lugs on the subs.
Comprehensive Overview of Hammer Union Figures
Low Pressure Hammer Unions
Fig 50
Working Pressure (CWP): 500 PSI
Test Pressure: 750 PSI
Material: Carbon steel
Connection Types: Threaded and welded
Applications: Low-pressure fluid transfer
Fig 100
Working Pressure (CWP): 1,000 PSI
Test Pressure: 1,500 PSI
Applications: Medium-pressure systems
Medium Pressure Hammer Unions
Fig 200 and Fig 206
Working Pressure (CWP): 2,000 PSI
Test Pressure: 3,000 PSI
Features: O-ring in male sub (Fig 206), Butt-weld connection available.
Fig 207 and Fig 211
Working Pressure (CWP): Up to 2,000 PSI
Features: Primary O-ring seal and secondary seal ring, no metal-to-metal contact between subs.
High Pressure Hammer Unions
Fig 400
Working Pressure (CWP): 4,000 PSI
Test Pressure: 6,000 PSI
Features: Rigid design with O-rings for primary sealing (sizes 2-1/2” to 12”)
Fig 600 and Fig 602
Working Pressure (CWP): 6,000 PSI
Test Pressure: 9,000 PSI
Features: Bronze seat (Fig 600), seal ring for positive sealing and secondary metal-to-metal seal (Fig 602).
Fig 1002, Fig 1003, and Fig 1004
Working Pressure (CWP): 10,000 PSI
Test Pressure: 15,000 PSI
Applications: High-pressure systems like choke and kill lines, cementing, acidizing, etc.
Features: O-rings for primary sealing, suitable for misaligned positions (Fig 1003).
Ultra High-Pressure Hammer Unions
Fig 1502
Working Pressure (CWP): 15,000 PSI
Test Pressure: 22,500 PSI
Features: Designed for extreme high-pressure conditions.
Fig 2002 and Fig 2202
Working Pressure (CWP): Up to 20,000 PSI (Standard) and 15,000 PSI (Sour service)
Test Pressure: 30,000 PSI (Standard) and 22,500 PSI (Sour service)
Features: Replaceable lip-type seal, butt-weld configuration only.
Why Choose Blaze Sales & Service?
- Unwavering Commitment to Quality: Stringent quality control measures are implemented throughout the manufacturing process to ensure consistent product reliability and performance.
- Extensive Industry Expertise: Blaze Sales & Service possesses deep industry knowledge and technical expertise, enabling them to provide tailored solutions and expert guidance to their customers.
- Comprehensive Product Portfolio: A broad selection of hammer unions caters to diverse application needs and pressure requirements.
- Exceptional Customer Support: Dedicated to providing prompt, responsive, and personalized customer service.
- Competitive Pricing: Offering cost-effective solutions without compromising on quality or performance.
Conclusion
Hammer unions are indispensable for the oil and gas industry, offering reliable connections across diverse applications. Blaze Sales and Service provides a comprehensive range of hammer unions that meet rigorous quality and performance standards. From low-pressure unions to ultra high-pressure configurations, Blaze ensures unmatched reliability and safety.
Frequently Asked Questions (FAQs)
What is the difference between CWP and Test Pressure?
CWP (Cold Working Pressure) represents the maximum pressure the union can safely handle under normal operating temperatures. Test Pressure is the pressure at which the union is hydrostatically tested to verify its integrity and strength.
What does “Sour Service” mean?
Sour service refers to applications involving hydrogen sulfide (H2S), a corrosive gas present in some oil and gas formations. Specialized materials and manufacturing processes are required for equipment used in sour service environments.
What sizes and pressure ratings are available?
Blaze offers hammer unions ranging from 1” to 12” in size and pressure ratings from 500 PSI to 20,000 PSI.
Are the hammer unions interchangeable?
Yes, all hammer union components are interchangeable with familiar global designs, including WECO.
What materials are used for manufacturing?
Hammer unions are made from high-strength forged alloy steel.
Are butt-weld connections available?
Yes, butt-weld configurations are available. Customers must specify the pipe schedule when ordering.
Are the unions suitable for sour gas service?
Yes, all sour gas service components conform to the latest NACE specifications.
Choose Blaze Sales and Service for superior hammer unions and reliable oilfield equipment. Contact us today to learn more about our products and services!