Fig 1502 Hammer Union Seals: High-Pressure Sealing Solutions for Oilfield Flowlines

Fig 1502 Lip Seals for Identified Flowline Assemblies

The Fig 1502 Hammer Union Seal (also known as a Lip Seal) is a critical high-pressure component designed for the most demanding oilfield services. Match the seal to the manufacturer, nominal size and groove drawing of the temporary pipework, manifold or well-testing assembly. The complete assembly determines its rated working pressure.

As a specialized oilfield rubber seal manufacturer (SHQN), we produce Fig 1502 seals using precision-molded elastomers and high-strength metal reinforcement rings. Our seals are designed to be matched to the specific manufacturer drawing for the identified union connection and service conditions.

Technical Specifications: Fig 1502 Performance

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Confirm the lip profile, hardness and backup arrangement for the actual Figure 1502 assembly used in fracturing or pumping service.

• Standard Size: Listed nominal 1", 2", 3", 4"; confirm each configuration from its drawing

• Working Pressure: Refer to the complete identified assembly rating; the rubber alone has no independent pressure rating

• Design Profile: Self-energized Lip Seal

• Reinforcement: Available with Brass or Stainless Steel Anti-Extrusion Rings

• Compliance: Manufactured under ISO 9001 quality management systems

   

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Material Comparison & Operating Temperatures

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Selecting the right material is essential for safety and seal longevity. SHQN offers three primary rubber compounds tailored for different well conditions:

Key Features of SHQN Fig 1502 Union Seals

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• Precision Fit: Confirm seal dimensions and tolerances against the specific manufacturer groove drawing.

• Anti-Extrusion Design: Confirm whether the backup is bonded, retained or separate, with its dimensions and material taken from the assembly drawing.

• Chemical Resilience: Review the selected compound against the actual crude oil, fracturing fluid or acidizing formulation and exposure.

• Factory-Direct Supply: Request a quotation with the drawing, compound, inspection requirements and quantity; confirm the delivery schedule for that configuration.

   

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Primary Oilfield Applications

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The Fig 1502 seal is the "workhorse" of high-pressure service, widely used in:

• Hydraulic Fracturing (Fracking): Manifold trailers and discharge lines.

• Acidizing & Cementing: Replacement sealing for identified chemical-injection connections, subject to compound compatibility review.

• Well Testing: High-pressure flow back and flow control systems.

• Choke & Kill Lines: Critical safety lines on drilling and production rigs.

   

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Why Choose SHQN (Qinuo) as Your Partner?

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Established in 2013 and based in the Shanghai Free Trade Zone, Shanghai Qinuo Industry Co., Ltd (SHQN) is a high-tech enterprise specializing in energy-sector rubber solutions.

• Manufacturing Power: 30+ vulcanization presses with a monthly capacity of over 20 tons.

• Global Export: Proven track record in the USA, Canada, Germany, and the UK markets.

• Quality First: "Quality for Survival, Innovation for Development" is our core philosophy.

• One-Stop Shop: We also provide custom machined parts and plastic components for the oilfield.

   

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Frequently Asked Questions (FAQ)

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Q1: Can your Fig 1502 seals be used in Sour Gas (H2S) environments?
A: Review the specific compound and backup material for the actual gas composition, temperature, pressure and decompression duty. Consider HNBR or Special Grade FKM only after the required qualification and assembly construction are confirmed; stainless steel alone does not establish sour-service suitability.

Q2: Are these seals interchangeable with standard industry unions?
A: Confirm the union manufacturer, nominal size, groove and approved seal drawing before substitution; Figure 1502 alone does not establish interchangeability.

Q3: Do you offer bulk discounts for service companies?
A: Yes, we specialize in high-volume production and offer competitive tiered pricing for bulk orders and long-term supply contracts.

Company and factory

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Established in 2013 within the Shanghai Free Trade Zone, Qinuo is a high-tech enterprise specializing in rubber seal manufacturing for the Oil & Gas sector. We integrate R&D, production, and sales under our core philosophy: "Quality for Survival, Innovation for Development." This commitment has earned us recognition across global markets, where we currently promote our Royal Way and SHQN brands in the energy industry.

Qinuo provides professional design and production services for rubber parts, plastic components, and machined parts. Our solutions serve diverse sectors including oil & gas, automotive, home appliances, and industrial equipment. Guided by our principles of "High Quality, High Professionalism, High Efficiency," our dedicated team ensures excellence at every stage.

We operate two wholly-owned factories in Nantong City—strategically located just one hour from Shanghai Pudong Airport and Shanghai Port. Equipped with over 30 rubber vulcanization presses and supporting machinery, we produce more than 20 types of rubber seals and related products. Our monthly production capacity exceeds 20 tons (approximately 40,000 lbs), and we continue to expand rapidly.

Operating under a comprehensive ISO9001-based quality management system, we export to over 100 countries including the USA, Canada, UK, Germany, Finland, and Australia. We're confident in our ability to meet your requirements and look forward to a productive partnership.

Package and shipping

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Fig 1502 Backup Ring Identification for Replacement Orders

For a replacement order, photograph both faces and the side profile of the old seal. Identify whether the metal backup is separate, bonded or mechanically retained, and provide groove dimensions from the equipment drawing. Record the nominal union size, manufacturer marking, compound, hardness tolerance and operating conditions. Do not select a backup ring solely by its color or apparent similarity.