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Professional production of rubber membranes and rubber seals
Spring energy storage sealing ring Spring-energized seal Perfluoroether O-ring (FFKM) Fully wrapped O-ring Check valve Double layer wrapped O-ring Wrap rectangular circle O-RING Ultra low temperature -196 degree sealing component PEEK flood plug seal for specific machinery PCTFE rod plate material PEEK rod sheet material Shaft seal Hole sealing rotary seal
One way valve (check valve)
One way valve (check valve)
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DESCRIPTION / Introduction

Application: Professional application in high-purity semiconductor industry, also suitable for ultrapure water or corrosive chemicals.

Features: 1. High purity and corrosion resistance. The PTFE one-way valve (check valve) TCV adopts machined PTFE components without any metal material, providing excellent chemical resistance and purity. 2. Special sealing design, no O-ring is required for sealing. 3. The PTFE spring machined has low opening pressure and can reseal with minimal back pressure. 4. Clear flow direction: indicated by clear arrows affixed to the product

Material: PTFE body and internal components, PFA nut

Interface form: Expansion connection

Opening pressure: 0.017-0.052Bar


Back pressure/sealing pressure: 0.35Bar



The one-way valve series is a fluorinated polymer one-way valve with a size range of 1/8 to 1-1/2 inches. It uses machined PTFE springs, which can achieve extremely low opening pressure (0.25 PSI) and minimal resealing back pressure. The valve body is made of machined PTFE, which has high cycle life and excellent corrosion resistance, and does not require O-ring sealing. This one-way valve is highly suitable for ultra-high purity (UHP) and corrosive chemical applications, including hybrid systems and wet workbenches in semiconductor manufacturing operations.


According to customer requirements, the one-way valve series can be equipped with various end configurations, including Parflare and Pargrip pipe fittings. These accessories reduce assembly and installation time while ensuring sealing performance in applications where cleanliness is crucial. The compact design of this valve reduces installation requirements, making it advantageous in facility areas with limited space.


The tongue groove external seal of the one-way valve series ensures reliable sealing of the valve body. This, combined with the internal polished surface, can minimize particle retention and completely isolate corrosive process media at working pressures up to 120 PSI. Removing the O-ring enables the CV-1 series to be compatible with various highly corrosive process fluids.