Hammer Union Seals for Figure 602, 1002, and 1502 Connections

1. Product Overview 

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Our Hammer Union Seals are precision-engineered to provide a leak-proof connection in high-pressure piping systems. Designed specifically for standard Figure 602, 1002, and 1502 hammer unions, these seals are critical for maintaining pressure integrity in demanding oilfield environments, including fracturing, cementing, and acidizing operations.

Available in a variety of high-grade elastomers, our seals ensure maximum durability against abrasion, chemical attack, and extreme pressure fluctuations.

2. Technical Specifications 

3. Material Comparison & Selection

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4. Key Features

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• Pressure Integrity: Tested to withstand peak pressures of up to 15,000 PSI without extrusion.

• Anti-Explosive Decompression (AED): Available in specialized compounds to prevent failure during rapid pressure drops.

• Interchangeability: Fully compatible with standard Fig 602, 1002, and 1502 union connections (Standard Service & Sour Gas).

• Reinforcement Options: Optional Brass or Stainless Steel backup rings to prevent seal extrusion under extreme flow rates.

   

5. Applications

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Our hammer union seals are widely used across the global oil and gas industry:

• Well Completion & Stimulation: Essential for fracturing (Frac) manifolds.

• Drilling Operations: Mud pump suction and discharge lines.

• Flowback Services: High-velocity fluid control.

• Industrial Applications: High-pressure chemical and water transfer.

   

6. Why Choose Our Sealing Solutions?

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• Material Traceability: Every batch is tested for hardness, tensile strength, and compression set.

• Certifications: Manufactured in compliance with industry-standard quality systems (Equivalent to API performance requirements).

• Fast Lead Times: Large stock of standard sizes for immediate global shipping.

• Custom Engineering: Capability to develop custom compounds for Arctic cold or Desert heat environments.

   

7. FAQ

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Q1: How do I choose the right material (NBR, HNBR, FKM, PTFE) for my Hammer Union Seals?

A: Choosing the correct material is critical for seal longevity and safety.

• NBR (Nitrile): Best for standard oil and water service with temperatures between -30°C to +100°C. It is the most cost-effective for general drilling.

• HNBR (Hydrogenated Nitrile): Engineered for high-pressure fracking and drilling. It offers superior abrasion resistance and handles temperatures up to +150°C.

• FKM (Fluoroelastomer): The go-to for Sour Gas (H2S) service and high-temperature environments (up to +200°C). It has excellent chemical resistance.

• PTFE (Teflon): Used for extreme chemical compatibility and cryogenic or ultra-high temp services, though it is less flexible than elastomers.

Q2: Can your Hammer Union Seals withstand 15,000 PSI for Figure 1502 connections?

A: Yes. Our Figure 1502 Hammer Union Seals are specifically designed for high-pressure flow control. For 15,000 PSI service, we recommend our Lip-type seals with Brass or Stainless Steel backup rings. The metal insert prevents the elastomer from extruding under extreme pressure, ensuring a secure, leak-proof seal during cementing, acidizing, and fracturing operations.

Q3: Do you offer AED (Anti-Explosive Decompression) grade seals for gas applications?

A: Absolutely. Rapid Gas Decompression (RGD) is a major pain point in gas compression and high-pressure gas wellheads. We provide AED-rated HNBR and FKM compounds that have been tested to prevent internal cracking or "blistering" when system pressure drops rapidly. This significantly reduces the risk of catastrophic seal failure in gas-saturated environments.

Q4: Are these seals compatible with standard Figure 602, 1002, and 1502 unions?

A: Yes, our seals are manufactured to strict industry dimensions, ensuring 100% interchangeability with standard Hammer Union connections. Whether you are using Figure 602 (6,000 PSI), Figure 1002 (10,000 PSI), or Figure 1502 (15,000 PSI), our seals provide a precision fit to eliminate bypass and maintain flow integrity.

Q5: How does H2S (Sour Gas) affect the service life of a Hammer Union Seal?

A: H2S can cause standard NBR to embrittle and crack (sulfur-induced stress cracking). For Sour Service, we utilize specialized FKM or peroxide-cured HNBR compounds that meet NACE MR0175 standards. These materials resist chemical degradation in the presence of hydrogen sulfide, extending the seal’s service life and preventing hazardous leaks on site.