Check Valve Poppet Type – Tube Ends 3/8" NPT – 6000 PSI – ISO 9001

Check Valve

Also known as:

Non-return Valve, One-way Valve, Reflux Valve, Retention Valve

Check Valve Poppet Type – Tube Ends 3/8" NPT – 6000 PSI – ISO 9001

Check Valve

Also known as:

Non-return Valve, One-way Valve, Reflux Valve, Retention Valve

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Delivery Time:

6 - 8 Weeks

Note:

The Check Valve Poppet Type with 3/8

Executive Summary

The Check Valve Poppet Type with 3/8" NPT tube ends is a compact, high-pressure valve used to control flow direction in fluid and gas systems. It prevents backflow, protecting pumps, compressors, and other critical equipment, which helps avoid costly downtime or damage.

Its poppet design responds quickly to pressure changes, ensuring tight sealing and reliable operation. The 3/8" connection is ideal for medium-diameter tubing in instrumentation, hydraulic, and industrial systems where space is limited and dependable performance is essential.

Technical Specifications

End Connection Tube Ends
Size 3/8"
Flow Direction Uni-directional
Standard Working Pressure 6000 PSI
Maximum Working Pressure 10000 PSI (on request)
Cracking Pressure 1/3 to 25 PSI
Temperature Rating –40 °F to 450 °F (–40 °C to 232 °C)
Materials SS 316, Brass, Monel 400
Installation Inline or panel-mounted integration possible
Valve Type Poppet Check Valve

Features and Benefits

  • Protects pumps, compressors, and equipment from backflow damage.
  • Compact design suitable for medium-diameter tubing.
  • Poppet-type mechanism for one-way flow control.
  • Long service life with minimal maintenance.
  • Quick response to flow changes for reliable operation.

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Detailed Description

The Check Valve Poppet Type with 3/8" NPT tube ends is a compact valve designed to allow flow in one direction while preventing reverse flow in hydraulic, pneumatic, and industrial systems. It features a spring-loaded poppet mechanism that opens when forward pressure exceeds the cracking pressure and closes immediately when flow attempts to reverse, ensuring reliable protection for pumps, compressors, and other critical equipment.

Rated for a standard working pressure of 6,000 psi, with optional higher-pressure ratings up to 10,000 psi, this valve is suitable for demanding applications in oil and gas, chemical processing, instrumentation, and general industrial environments. The 3/8" NPT tube ends provide secure, leak-tight connections and easy integration into medium-diameter piping or tubing systems.

The poppet design minimizes pressure drop while delivering fast response and tight sealing, reducing the risk of backflow and system inefficiency. Built from durable materials such as stainless steel, Duplex, Super Duplex, Hastelloy, Inconel, or Monel, the valve offers long service life even in corrosive or high-pressure conditions. Factory testing ensures each valve meets standards for cracking and reseal performance, with heat code traceability for full material verification.

This type of valve is particularly effective in applications requiring precise flow control, compact installation, and reliable one-way operation, making it an essential component for maintaining system integrity and protecting valuable equipment.

Engineering Data