Replacement NBR HNBR FKM PTFE Hammer Union Seals for High-Pressure Manifolds
Product Overview
Our replacement hammer union seals are precision-engineered to provide a dependable, leak-proof barrier for high-pressure manifold systems and flowline connections. Designed to meet industry-standard dimensions, these seals ensure a perfect fit in the seal grooves of standard hammer unions. Whether you are involved in hydraulic fracturing, well cementing, or industrial fluid handling, these seals offer the mechanical strength and chemical resilience required to maintain system integrity under extreme stress.
Application Scope
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High-Pressure Manifolds: Ensuring secure connections in choke and kill manifolds.
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Hydraulic Fracturing: Handling high-velocity fracking fluids and proppants.
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Acidizing and Cementing: Resistance to corrosive chemicals and abrasive slurries during well stimulation.
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Drilling Mud Systems: Sealing suction and discharge lines on mud pumps.
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Flowline Connections: Connecting pipes for water, oil, and gas transfer in both onshore and offshore environments.
Material Comparison and Performance
The performance of a hammer union seal is largely determined by its elastomer compound. We offer several material options to suit different environmental conditions:
NBR (Nitrile Rubber)
Best for general purpose service including water, oil, and hydraulic fluids. It offers excellent abrasion resistance and is highly cost-effective for standard operations.
Temperature Range: -30 degrees Celsius to +100 degrees Celsius (-22 F to +212 F).
HNBR (Hydrogenated Nitrile)
Specially formulated for more demanding environments involving sour gas (H2S), crude oil, and higher temperatures. It provides superior mechanical strength and heat resistance compared to standard NBR.
Temperature Range: -40 degrees Celsius to +150 degrees Celsius (-40 F to +302 F).
FKM (Fluorocarbon)
The material of choice for high-temperature applications and exposure to aggressive chemicals, acids, and steam. It maintains its sealing properties where other elastomers fail.
Temperature Range: -20 degrees Celsius to +200 degrees Celsius (-4 F to +392 F).
PTFE (Polytetrafluoroethylene)
Typically used in specialized seals or as backup rings, PTFE offers near-universal chemical resistance and can withstand extreme temperature fluctuations.
Temperature Range: -200 degrees Celsius to +250 degrees Celsius.
Working Pressure and Technical Parameters
Our seals are designed to match the pressure ratings of standard industry figure numbers:
Figure 602: Rated for operating pressures up to 6,000 PSI.
Figure 1002: Rated for operating pressures up to 10,000 PSI.
Figure 1502: Rated for operating pressures up to 15,000 PSI.
Figure 2202: Rated for operating pressures up to 20,000 PSI in specialized H2S environments.
Available Sizes: 1 inch, 2 inch, 3 inch, 4 inch.
Hardness: 80 to 90 Shore A, providing the necessary rigidity to resist extrusion.
Reinforcement: High-pressure variants (especially Fig 1502) are available with brass or stainless steel anti-extrusion rings for enhanced durability.
Key Features
1. Pressure-Energized Design: The lip seal geometry uses internal fluid pressure to increase the sealing force against the union wall, ensuring a tighter seal as pressure rises.
2. Anti-Extrusion Technology: The optional integrated metal rings prevent the rubber from washing out or deforming under high flow rates and extreme pressure.
3. Universal Compatibility: These seals are manufactured to be fully interchangeable with standard figure unions, ensuring they can be used as direct replacements for existing pipeline components.
4. Chemical and Abrasive Resistance: Specialized elastomer formulations resist degradation from hydrocarbons, salts, and abrasive drilling mud.
Why Choose Our Seals
We specialize in providing high-performance sealing solutions that reduce maintenance downtime and prevent hazardous leaks. Every seal is batch-tested for dimensional accuracy and material consistency, ensuring it meets the rigorous demands of high-pressure manifold operations. By dealing directly with a professional manufacturer, you gain access to competitive pricing and technical support for selecting the ideal material for your specific field conditions.
Ordering Information
To ensure the correct fit for your manifold system, please specify:
The Figure Number (e.g., Fig 1502 or Fig 1002).
The Pipe Size (e.g., 2 inch or 3 inch).
The Required Material (NBR, HNBR, or FKM).
Whether a metal reinforcement ring is required.
Contact us today for a technical consultation or to receive a quote for your bulk replacement needs.
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