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Technical Information Fig No. 161

Valve Pic

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. 

Dimensions (mm)

Valve Size 50 80 100 150
'A' 110 152 178 216
'B' 459 606 584 660
'C' 115 165 172 216


Connections Flanged
Working Pressure As per flange rating
Adjustable Ranges 0 - 120, 70 - 230, 200 - 700, 500 -1500 kPa. Higher pressures available on request
Temperature Range: 2 - 190oC


Body, Cover and Springcage FBE coated SG Iron, Bronze, Steel or Stainless Steel
Trim Bronze or Stainless Steel
Seals Nitrile or Viton
Want to modify / customise this valve? Contact Us today to discuss your requirements.