Product Overview:
PTFE check valves are designed for high-purity semiconductor applications and are also ideal for ultra-pure water and corrosive chemical or gas applications. The design uses machined PTFE components to provide excellent chemical resistance and purity without the need for an O-ring seal. High-precision machined PTFE springs allow for low rupture pressure operation and small resealing back pressure.
Product Features:
High finish sealing surface;
Groove external seal;
PTFE spring with high precision machining
Different end mounting configurations are available, such as sleeve, thread, flaring, etc.
Product Advantages:
Long service life, excellent sealing performance.
Eliminates O-ring and compatibility issues.
Low opening pressure.
Reduce connection, installation space, and overall cost.
Structural materials:
Valve body: PTFE
Seal: PFA, PVDF, PTFE
Pressure data:
Opening pressure :0.25 PSIG (0.017bar) -0.75 PSIG (0.052bar)
Reverse check seal pressure: 5.0 PSIG (0.35bar)
Pressure range: 27" Hg (913 mbar) -120 PSIG (8.3 bar)
Temperature range:
Ambient temperature: 32-212 °F (0-100 °C)
Medium temperature: 32-266 °F (0-130 °C)
| Product Number | CV | KV | Style | Interface Configuration |
| PTFE-CV-FN01 | 0 61 | 8.78 | 1 | 1/8" FNPT |
| PTFE-CV-FN02 | 1.51 | 21.74 | 1 | 1/4" FNPT |
| PTFE-CV-FN03 | 2.43 | 35 | 2 | 3/8" FNPT |
| PTFE-CV-FN04 | 4.22 | 60.77 | 3 | 1/2" FNPT |
| PTFE-CV-FN08 | 14 | 201.6 | 5 | 1" FNPT |
| PTFE-CV-OD02 | 0.02 | 0.29 | 1 | 1/8"Card set |
| PTFE-CV-OD02 | 0.34 | 4.9 | 1 | 1/4"Card set |
| PTFE-CV-OD03 | 0.98 | 14. 11 | 1 | 3/8"Card set |
| PTFE-CV-OD04 | 2.17 | 31.25 | 2 | 1/2"Card set |
| PTFE-CV-KK02 | 0.26 | 3 74 | 1 | 1/4"flaring |
| PTFE-CV-KK03 | 1.11 | 15.84 | 1 | 3/8"flaring |
| PTFE-CV-KK04 | 2.03 | 29.23 | 2 | 1/2" flaring |
| PTFE-CV-KK06 | 4.13 | 59.47 | 3 | 3/4" flaring |
| PTFE-CV-KK08 | 11.85 | 170.6 | 4 | 1" flaring |
Note: The standard nut material is PVDF, PFA nut can be selected.
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