HNBR Hammer Union Seals With Stainless Ring: Superior Heat & Abrasion Resistance

Overview

Our high-performance HNBR Hammer Union Seals with Stainless Steel Rings are specifically engineered for the rigorous demands of the oil and gas industry. This replacement construction combines an HNBR sealing element with a stainless steel anti-extrusion ring. Match the lip profile, groove, backup grade and retention to the identified flow-control assembly drawing, and review the selected compound for the actual fluid and operating conditions.

Key Features and Benefits

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• Enhanced Thermal Stability: HNBR provides superior heat resistance compared to standard Nitrile (NBR), maintaining seal integrity in high-temperature environments.

• Anti-Extrusion Construction: Confirm stainless backup grade, geometry, edge condition and retention against the manufacturer drawing.

• Extreme Abrasion Resistance: Designed to withstand the erosive effects of abrasive media, including drilling mud, fracturing fluids, and proppants.

• Chemical and Gas Compatibility: Review exact compound against fluid formulation, gas composition, temperature, pressure and exposure.

• Precision Fit: Agree seal and groove dimensions from the actual manufacturer drawing before replacement.

Technical Specifications

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Performance Parameters

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• Working Pressure: Refer to the complete identified union assembly rating. The HNBR seal and stainless backup alone have no independent system rating.

• Operating Temperature: Confirm continuous and peak limits for the selected HNBR compound.

• Service Type: Specific compound and backup-material qualification required for actual gas and fluid conditions.

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Common Applications

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These Hammer Union Seals are essential components in various upstream oilfield operations, including:

1. Hydraulic Fracturing (Fracking): Sealing high-pressure discharge lines and manifolds.

2. Acidizing & Cementing: Handling corrosive fluids and cement slurries.

3. Well Testing & Completion: Ensuring secure connections during flowback and testing phases.

4. Mud Systems: Maintaining pressure in mud pumps and suction lines.

5. Manifold Systems: Reliable sealing for choke and kill manifolds.

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Why Choose Our HNBR Hammer Union Seals?

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Agree the selected HNBR compound, stainless backup grade and dimensional inspection requirements for each replacement configuration. Provide the operating conditions and required qualification documentation before quotation.

HNBR Compound and Stainless Backup Grade Selection

Specify the HNBR compound separately from the stainless backup material. Confirm the ring grade, dimensions, retention and surface condition from the union drawing; do not substitute SS304 and SS316 solely because both are stainless steel. Include gas composition, fluid formulation, temperature and decompression duty for material review. Approve the matching seal and backup configuration for each manufacturer, figure and nominal size before repeat orders.