Product Specification

Hammer Union Seals in NBR, HNBR, and FKM Materials

Product Overview

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Hammer Union Seals (also known as Lip Seals) are high-pressure sealing elements designed for the demanding environments of the oil and gas industry. These seals are installed in hammer union pipe connections to prevent leakage and ensure the safe transfer of fluids, including water, oil, mud, and chemicals. Our seals are engineered to fit standard Figure 602, 1002, and 1502 connections, offering exceptional durability under extreme mechanical stress.

Material Comparison & Selection Guide

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The performance of a hammer union seal depends heavily on its elastomer compound. We offer three primary materials to meet various operational needs:

1. NBR (Nitrile Rubber / Buna-N)

• Best For: Standard oil and gas applications, water transfer, and hydraulic fluids.

• Key Feature: Excellent oil resistance and abrasion resistance at a cost-effective price.

• Temperature Range: -30°C to +100°C (-22°F to +212°F).

2. HNBR (Hydrogenated Nitrile)

• Best For: High-stress drilling environments, sour gas (H2S) exposure, and crude oil handling.

• Key Feature: Superior mechanical strength and better thermal stability than standard NBR.

• Temperature Range: -40°C to +150°C (-40°F to +302°F).

3. FKM (Fluorocarbon / Viton-Grade)

• Best For: High-temperature pipelines and aggressive chemical processing.

• Key Feature: Outstanding resistance to heat, acids, and aromatic hydrocarbons.

• Temperature Range: -20°C to +200°C (-4°F to +392°F).

   

Technical Parameters

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Key Advantages of Our Hammer Union Seals

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• Leak-Proof Performance: Precision-engineered lip design ensures an airtight seal even under rapid pressure fluctuations.

• Anti-Extrusion Technology: For high-pressure applications (Fig 1502), our seals can be equipped with metal inserts to prevent the rubber from deforming or washing out.

• Universal Compatibility: Manufactured to meet universal industry standards, ensuring they fit all standard-compliant hammer union pipe fittings.

• Reduced Downtime: High-grade elastomer compounds extend the service life of the connection, reducing maintenance frequency.

Application Scope

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Our Hammer Union Seals are widely utilized in critical industrial sectors:

• Oil & Gas Exploration: Wellhead connections, flowlines, and manifold systems.

• Hydraulic Fracturing (Fracking): High-pressure pumping and fluid transfer.

• Acidizing & Cementing: Handling corrosive stimulation fluids and cement slurries.

• Industrial Pipelines: Safe connection points for chemical and water transport systems.

• Offshore Drilling: Reliable sealing for marine-based drilling operations.

Ordering Information

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To ensure you receive the correct seal for your application, please provide the following details:

1. Figure Number: (e.g., Fig 1502)

2. Size: (e.g., 3 Inch)

3. Material: (NBR, HNBR, or FKM)

4. Option: With or without a metal (Brass/SS) reinforcement ring.

Why Choose Our Sealing Solutions?

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As a professional manufacturer of rubber sealing components, we prioritize quality and reliability. Our Hammer Union Seals undergo rigorous pressure and temperature testing to ensure they meet the highest safety standards. We offer competitive pricing, fast global shipping, and technical support to help you select the right material for your specific pipeline conditions.