SPR- Pressure Regulators
SPR valves are pilot operated main valves for regulating pressure and temprature in Refrigeration system. SPR main valves can be used on the high and low pressure sides,in wet and dry suction lines, and in liquid lines without phase change (i.e. where no expansion takes place in the valve). The function of a SPR valve depends solely on the pilot pressure applied to the valve, either from pilot valves or in the form of external pilot pressure.
SPR has two connections for pilots. They are connected in parallel. As an optional, three pilot connections could be provided. The unused pilot port can be closed with block plug.
APPLICATION
Temperature range : -60/+120°C (-76/+248°F).
Pressure range : Max. working pressure: 52 bar (754 psig)
Opening differential pressure :
Fully open : Min. 0.2 bar g (min. 2.9 psig)
FEATURES:
Can be used for all normal, non-flammable refrigerants, including R717, and non –corrosive gases/ liquids:
- Assuming seals of the correct material are used.
- Perform as a multifunction valve when several pilot valves are connected to the same main valve
- All pilot valves can be screwed on all sizes of main valves
- The valve has a pressure gauge connection so that inlet pressure can be measured.
- The valve has a Teflon seat to give excellent tightness.
- The main valve top cover can be oriented in any direction without the function of pilot valves being affected.
