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Home > Products > Valves > Check > UHP Check Valves O-Ring Free Fluoropolymer-CHP Series
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UHP Check Valves O-Ring Free Fluoropolymer-CHP Series

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Swagelok® UHP Check Valves, O-Ring–Free Fluoropolymer—CHP Series

UHP Check Valves O-Ring-Free Fluoropolymer-CHP Series

CHP series UHP fluoropolymer check valves provide low cracking and reseal pressure and contain wetted components that meet SEMI Standard F57-0301 for ultrahigh-purity system components.



Specifications

Working Pressure
Media Temperature
Body Material
• Small Body
• Medium Body
Flow Coefficient
Cracking Pressure
• Small Body
• Medium Body
Reseal Pressure
End Connections
• Types
• Sizes
Up to 80 psig (5.5 bar)
50 to 185°F (10 to 85°C)

Modified PTFE
PFA
Up to 4.1

Less than 1.5 psig (0.11 bar)
Less than 0.9 psig (0.07 bar)
Up to 0.5 psig (0.04 bar)

Fine thread flare, Nippon Pillar® Super 300
Small body: 1/4 and 3/8 in.; 6 and 10 mm
Medium body: 1/2 and 3/4 in.

Other Plastic Products

PFA fittings
PFA tubing
PFA plug valves
PFA needle valves
UHP fluoropolymer diaphragm valves

Features

  • Low cracking and reseal pressure
  • Poppet UHP Check Valves Cutaway
    • O-ring–free design ensures clean operation
    • Contoured shape reduces turbulence and minimizes pressure drop
  • Shell seal
    • Tongue-and-groove design
    • Provides excellent leak integrity during thermal cycling and high-pressure applications
  • Spring
    • Noncontaminating PFA spring material
    • Allows valve installation in any orientation
  • Positive stop
    • Prevents spring from compressing to a solid height
    • Allows flow to sweep around spring coils reducing entrapment
  • Retainer
    • Small body size open-cage design ensures poppet alignment and eliminates no-flow areas
    • Medium body size designed to maximize flow and reduce pressure drop

Options

  • PFA fine thread flare nuts place of standard PVDF nuts
  • ISO, NPT, and other end connections
  • Nippon Pillar Super 300 end connections on medium-body valves

Testing

Every Swagelok UHP check valve is factory leak tested at the seat and shell.


Cleaning and Packaging

Every Swagelok UHP check valve is cleaned and packaged in accordance with SEMI Standard F57-0301 Section 11 for ultrahigh-purity fluid system components.

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