RSAO Constant Pressure Regulating Valve

Technical parameters

• Nominal pressure: 2.8MPa
• Applicable temperature:-50℃ ~+120°c
• Test pressure:4.2MPa
• Applicable medium: ammonia, fluorine, propane,etc.

Characteristics

• RSAO,is a set make up of one AM1 ,and one pilot ACVC as the more simple version
• For similar aplications with the same pilot AcVC is available followingvariations:

1、RSAOE over AM1，ACVC+ External air source
2、RSAOBE over AM3. ACVC+ connection with solenoid pilot
3、RSAOSE over AM3，ACVC, through one solenoid NO or NC,and hot gas connection with solenoid NC type

Operation

• The range of pressure regulators RSA0 type, control the downstream pressure of main valve,opening this one when the outlet pressure fall sbelow the set point of the ACVC With the variations RSAOE，RSAOBE y RSAOSE, is posslble to wide open the main valve with independence ofthe outlet pressur if hot gas pass to the top of piston, and the last option RSAOSE,can be totally closed if the coil of the solenoid coupled to ACVC is energized(NO)or de-nergized(NC)
• The main valves close again，when the inlet pressure rises over the set point of the pilot ACVc

Applications

The regulators RSA0 are designed to work with ammonia and other fluorinated refrigerants，working to avoid the pressure downstream falls bellow the set point fixed , to control of condensation pressure or as starting valve or crankcase regulator to control the suction pressure.