Technical Information Fig No. 161
The ‘ROMA’ Fig. 161 Spring Loaded Relief Valve is available with right angle or globe type body and flanged connections.
It is suitable for relieving excess pressures of liquids and gases.
The valve disc is available with metal to metal seal or resilient ‘O’ Ring disc seal.
Fig. 161 Relief Valves can be custom manufactured in a range of materials and can be supplied with an easing lever. The valve seat and disc are contoured to improve lifting efficiency.
Pressure adjustment is made by rotating the adjusting screw clockwise to increase and anti-clockwise to decrease the blow off pressure.
|Working Pressure||As per flange rating|
|Adjustable Ranges||0 - 120, 70 - 230, 200 - 700, 500 -1000 kPa|
|Temperature Range:||2 - 190oC|
|Body, cover and Springcage||Cast Iron, Bronze, Steel or Stainless Steel|
|Trim||Bronze or Stainless Steel|
|Seals||Nitrile or Viton|