Competitive Valve Solutions at the Highest US and
International Quality Standards
 
Ultra High Pressure Cylinder Valve - CGA677 Inert Gases (Helium, Nitrogen, Argon) 4701-6400PSI
 
 
 
Ultra High Pressure Cylinder Valve - CGA677 Inert Gases (Helium, Nitrogen, Argon) 4701-6400PSI
VH677-x-1-xxxx
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Double O-Ring Seal Technology for all Industrial and Medical Gases
Robust Forging For Ultra High Pressure

Tapered, NGT Threads for Steel Cylinders
Tapered, 25E Threads for Steel ISO Cylinders

The VH Series ultra high pressure valves are engineered to meet the most demanding applications on cylinder of 3500 to 6000PSI. All Harrison valves are produced to meet or exceed the highest US and international standards; including ISO 10297 and CGA V-9. Harrison Valves™ are rigorously tested through a robust quality assurance system, and Harrison Valve™ maintains carefully monitored manufacturing processes to ensure that all Harrison valves meet or exceed design and performance specifications.

KEY FEATURES:
  • Double O-ring seal technology provides superior leak integrity at ultra high pressures.
  • Robust internal components for ultra high pressure service.
  • Extra heavy, robust forging for strength at high pressure and the most demanding applications.
  • Easy operation under all pressures.
  • 100% leak testing on entire production.
  • Meets and exceeds CGA V9 and ISO 10297.
  • Passed stringent adiabatic oxygen compression testing per ISO 10297.
  • All valves bagged for cleanliness no matter the gas service intended.
  • Lower plugs are designed specific for the gas service intended.
  • Unitized plug with robust hex and threads insure easy installation.
  • Common design safety and handwheels readily available.
  • Most valves are tapped for siphon tubes.
 
 
Part number VH677-6-1-10000 designed with CGA677 outlet for inert gases, 3/4 NGT Inlet for steel cylinders, 10000PSI safety for 6000PSI cylinders, CG1 Safety.
Specifications and Optional Features
All valves are supplied with safety relief devices as specified by the Compressed Gas Association Standard S1.1. Safety relief devices are a CG1, one piece brass plug and disc design for added safety. The suffix xxxx denotes pressure relief device burst disc rupture pressure. Refer to the safety device ordering information chart for pressures available.
 
Part Number CGA Designation Gas Service Inlet Thread Size Safety Device Service / Safety
VH677-6-1-XXXX CGA677 Inert Gases 3/4 NGT CG1 Customer Specified
VH677-25E-1-XXXX CGA677 Inert Gases 25E CG1 Customer Specified
 
 
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