Cryogenic Safety Relief Valves | #CWF40YW04N00


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Cryogenic Safety Relief Valves | #CWF40YW04N00

Parker Bestobell’s cryogenic safety relief valves are designed to reduce the risk of damage from over-pressure to static and road-going cryogenic storage tanks. They work by an innovative proportional lift action to ensure gentle release of pressure.


Technical Specifications

  • Inlet Size (inch): 1 1/4
  • Pressure Range (bar): 1.7-2.3
  • Inlet Port Connection Type: NPT Male
  • Pressure Range (psi): 25-34
  • Body Material: Bronze
  • Outlet Port Connection Type: BSP-PL Female
  • Outlet Size (inch): 1 1/2
  • Valve Type: Without Lever
  • Orifice Size (mm): 20.5
  • Options: No Drain
  • Valve Type: Without Lever
  • Orifice Size: 20.5 mm
  • Inlet Connection Size: 1-1/4 inch
  • Inlet Port Size: NPT Male
  • Outlet Connection Size: 1-1/2 inch
  • Outlet Port Type: Female BSP-PL
  • Pressure Rating: 25 to 34 psi, 1.7 to 2.3 bar
  • Options: No Drain
  • Body Material: Bronze
  • Additional Options: n/a
  • Weight: 3 kg
  • Minimum Operating Temperature: -196 °C
  • Maximum Operating Temperature: 65 °C
Safety Warning

Item Information

Parker Bestobell’s cryogenic safety relief valves are designed to protect cryogenic static and road-going storage tanks or capital equipment from damage caused by over-pressure.

These cryogenic safety relief valves feature an innovative proportional lift action which ensures that when the pressure in a tank rises, the safety relief valve activates and releases pressure gently to enable it to drop back to a safe pressure.   

They are available in three basic sizes defined by the throat diameter and are available with a variety of inlet and outlet connections. The valves are designed and factory set to lift repeatedly within +/- 2% of the set pressure and to re-seat above 92% of set pressure. Spring pre-compression and blow-down ring settings are securely sealed and factory set after testing to inhibit unauthorised tampering, as these are Category Four safety products. Flow rates at 10% above set pressure are measured to ensure compliance with stated flow capacities as an additional safety precaution.

These valves have an exceptional safety record in the field and have been used on a worldwide basis for over 50 years.
Markets:
Industrial Gas – designed and engineered for use with Group 1 gases

Features/benefits:
• Unique proportional lift action to release pressure gently
• Manufactured from high quality Stainless Steel or Bronze
• Designed to comply with ISO 4126 (Safety Valves General Requirement), Ad-Merkblatt A2 (Safety Devices against Excess Pressure) and TUV requirements.   

Applications:
• Transport
• Storage
• Defence
• Processing

Gases/liquids
• Oxygen (O2)
• Nitrogen (N2)
• Argon (Ar)
• Carbon Dioxide (CO2)
• Krypton (Kr)
• Neon (Ne)
• Hydrogen (H2)
• Nitrous Oxide (N2O)
• Sulphur Hexafluoride (SF6)
• Natural Gas (CH4)
• Ethylene (C2H4)
• Trifluoromethane (CHF3)

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Where to Buy

Local Contact

South Africa Headoffice

Parker Hannifin (Africa) Pty LTD

Sales Company South Africa

10 Berne Avenue

Aeroport

Kempton Park

Gauteng

South Africa

1620

Phone

0027 11 961 0700

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