Sporlan OROA Pressure Control Valve, 7/8 Inch, ODF Solder, 100 psig, 5/8 Inch Port, Brass Body, Metal Seat, 6.19 Inch H x 4 Inch W
The OROA is a nonadjustable head pressure control valve which performs the function of limiting the flow of liquid refrigerant from the condenser and at the same time regulates the flow of hot gas around the condenser to the receiver. The main orifice of the OROA valve is controlled by the valve diaphragm which causes the orifice to open on rise of outlet pressure. The inlet and outlet pressures are exerted on the underside of the seat disc in an opening direction. Since the area of the port is small in relationship to the diaphragm area, the inlet pressure has little direct effect on the operation of the valve. Therefore, the outlet or receiver pressure is the control pressure which actuates the valve. The force on top of the diaphragm, which opposes the control pressure, is due to the air charge in the element. These two forces are the operating forces of the OROA valve that control the main port.
- Minimum ambient design temperature
- Allowable pressure drop across the valve
- Diaphragm stainless steel element
- Copper connection
- Hermetic construction joints
