Bulgin GRV20 Gas Check Valve Brass 1/2" (15mm) BSP Female

The Bulgin GRV20 Gas Check Valve is an industrial gas safety device designed for the protection of ring lines, tapping points, and points of use in gas distribution systems. Manufactured in accordance with ISO 5175-2 (NV DF), this valve operates without a flame arrestor and is flashback-resistant when compressed air is used as the oxidant. Engineered for reliable performance with low, position-independent cracking pressure, it is suitable for controlled gas applications where system safety and flow stability are essential.

APPLICATIONS

• Protects ring lines, tapping points, and points of use
  
• Natural gas, LPG, cleaned biogas systems
  
• Flashback-resistant when compressed air is used as oxidant
  
• Controlled gas distribution applications

SPECIFICATIONS

• Standard: ISO 5175-2
  
• Nominal diameter: DN 25
  
• Inlet / Outlet: G 1/2" RH Female (DIN ISO 228)
  
• Cracking pressure: 4–8 mbar (position-independent)
  
• Working pressure: Up to 5 bar
  
• Inlet filter: 100 μm
  
• Temperature range: –20 °C to +70 °C
  
• Materials: Brass & Aluminium Alloy