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High Pressure Check Valve


1/4” & 1/2" NPT
10,000 Psig (690 Bar)

Description

Series HPCV is a High Pressure, One-Piece Body, Zero Leak, Check Valve for High Pressure and Severe Service applications. The unique design features a fully retained encapsulated O-ring seal with metal to metal backup for long service life. Available in Brass, 316 and 17-4 PH Stainless Steel to 10,000 psig

Features

  • One-Piece Body Design
  • Encapsulated Seal with Metal Backup
  • Self Purging Design prevents leakage
  • Increasing Pressure Increases Sealing Efficiency

Technical Data

Maximum Operating Pressure @ 100° F

Body Material Operating Pressure Proof Pressure
Psig (Bar) Psig (Bar)
Brass 5000 (345) 7500 (517)
316 Stainless 6000 (413) 10000 (690)
17-4 PH Stainless 10000 (690) 15000 (1034)

  • Minimum Burst Pressure: Greater than 3 times Operating Pressure
  • Leakage:
    • Elastomeric Seals: Zero @ 1.0 Psig (0.07 Bar) to Proof
    • Teflon Seals: Zero @ 75 Psig (5.2 Bar) to Proof
  • Nominal Crack Pressure: 2 - 5 Psig (0.14 - 0.34 Bar)
  • Temperature Range:
    • Seal Dependent (see How to Order)

Materials of Constructions

Component Valve Body Materials
Brass 316 Stainless Steel 17-4 PH Stainless Steel
Valve Body Brass, ASTM B16 316SS, ASTM A479 17-4 PH SS, ASTM A564, Heat Treated to H1150D 
Stem 17-4 PH SS, ASTM A564
Spring Retainer 303 SS, ASTM A582
O-Ring Shroud 303 SS, ASTM A582
Spring 302 SS, ASTM A313
Locknut Corrosion Resistant Austenitic Steel (CRES)
O-Ring Buna-N, Teflon® or Viton®
O-rings are lubricated with Krytox®

Dimensional Data


Model Code Port Configuration Flow Coefficient, Cv Dimensions in inches (mm)
Inlet Outlet OAL Hex Size¹
HPCV-4F 1/4" Female NPT 0.69 2.00 (50.8) 3/4 (19.05)
HPCV-8F 1/2" Female NPT 2.63 2.89 (73.4) 1-1/8 (28.58)
HPCV-4P 1/4" Male NPT  0.32 1.82 (46.23) 5/8 (15.88)
HPCV-8P 1/2" Male NPT  1.83 2.75 (69.85) 1 (25.4)
Note:  Dimensions are in inches (millimeters), for reference only and subject to change. 
            Flow Coefficient stated with Nitrogen and 2 - 5 Psig Nominal Spring.
            1 Female x Female Configuration made from Round Stock with Wrench Flats.
            NPT Threads per ASME B1.20.1

Ordering Information



PROPER COMPONENT SELECTION – When specifying a component, the total system design must be considered to ensure safe and trouble-free performance. Intended component function, materials compatibility, pressure ratings, installation, environment and maintenance are the responsibility of the system designer.