High-Pressure 15,000 PSI Hammer Union Lip Seal with Oilfield Grade NBR and Self-energized Design

Hammer Union Lip Seals for Identified Flowline Assemblies

Product Introduction and Design Engineering

The High-Pressure Hammer Union Lip Seal is a precision-engineered sealing element designed to meet the extreme demands of the global energy sector. These lip-style seals are specifically manufactured to provide a dynamic sealing action; as internal pressure increases, the seal lips are energized and pressed more firmly against the union walls, with profile, orientation and backup arrangement matched to the actual assembly drawing. This design is particularly critical for high-pressure flowlines where vibrations and pressure surges are common. For manifold replacement, confirm the manufacturer, figure, nominal size, groove and operating conditions before selecting the seal.

Material Science and Performance Benefits

Our hammer union seals are available in a variety of high-performance elastomers to suit different environmental conditions.

Nitrile (NBR,Buna-N)
This is the standard material for oilfield applications, offering excellent resistance to water, hydraulic fluids, and petroleum-based products. It provides high tensile strength and great wear resistance for general service.

HNBR (Hydrogenated Nitrile)
Review the specific HNBR compound against temperature, gas composition, exposure and decompression duty. The material family alone does not establish sour-service suitability.

FKM (Fluoroelastomer)
Review the specific FKM compound against the actual fluid formulation and continuous or peak temperature. Confirm compound limits before specifying elevated-temperature service.

About the Manufacturer Qinuo

Established in 2013 within the Shanghai Free Trade Zone, Qinuo is a high-tech enterprise specializing in rubber seal manufacturing for the Oil and Gas sector. We integrate R&D, production, and sales under our core philosophy: Quality for Survival, Innovation for Development. Our commitment has earned us recognition across global markets, where we currently promote our Royal Way and SHQN brands. We operate two factories in Nantong City with over 30 rubber vulcanization presses. Operating under an ISO9001 quality management system, we export to over 100 countries including the USA, Canada, UK, and Germany.

Technical Specifications Table

Primary Application Range

These lip seals are replacement components for identified upstream assemblies. The complete union assembly determines the working pressure; the rubber alone has no independent system rating.

1. Hydraulic Fracturing
In fracking operations, discharge lines must handle abrasive slurries at extremely high pressures. Review the compound, groove condition, backup arrangement and cycling duty for the actual pumping assembly.

2. Well Cementing and Acidizing
Select replacement seals for identified cementing or acidizing flowlines after reviewing compound compatibility with the slurry or acid formulation.

3. Mud Circulation Systems
The seals are used in mud pump manifolds and standpipe systems to manage the flow of drilling fluids. Inspect the groove and sealing faces, remove debris and follow the equipment manufacturer installation procedure.

4. Flowback and Testing
For flowback or well-testing replacement, state gas composition, fluid, temperature, working pressure and decompression requirements.

Why Choose Qinuo Sealing Solutions

Qinuo is dedicated to the principles of High Quality, High Professionalism, and High Efficiency. With a monthly production capacity exceeding 20 tons, we are capable of meeting large-scale industrial requirements with rapid turnaround times. Our strategic location near Shanghai Port ensures efficient global logistics for our clients in over 100 countries. We provide professional design services for rubber and plastic components, allowing us to customize seals for specific high-pressure challenges. Agree the inspection and qualification documentation required for the selected replacement configuration.

Fig 1502 and Fig 2202 Manifold Replacement Identification

Keep Figure 1502 and Figure 2202 replacement requests separate. Identify the manufacturer marking and nominal size for each manifold position, then match the seal groove, lip profile and backup retention from its drawing. Record one compound, hardness tolerance and drawing revision for each order line. Include working and test pressure from the assembly documentation and the actual fluid or gas duty.