Spirax Sarco Direct-acting Pressure Reducing BRV2s

Spirax Sarco Direct-acting Pressure Reducing Valve BRV2S is a direct acting pressure reducing valve with stainless steel bellows, suitable for steam and various gases such as compressed air.
The Spirax Sarco BRV2s is supplied with one of three colour coded springs for downstream pressure control:
Grey     - 0.14 to 1.7 bar g (2.03 to 24.65 psi g)
Green   - 1.40 to 4.0 bar g (20.30 to 58.00 psi g)
Orange - 3.50 to8.6 bar g (50.75 to 124.70 psi g)
This information can be found on the spring range ID disc located on the adjustment handwheel.
Check that the BRV2s has the correct spring for your application.