Westinghouse 664061R Ac Restrictor Orifice 0.061 Inch

Product Description

The WESTINGHOUSE 664061R is a restrictor orifice designed for use in air conditioning systems. This fixed-orifice metering device controls refrigerant flow between the high-pressure and low-pressure sides of the refrigerant circuit. At 0.061 inches in orifice diameter, it meters refrigerant entering the evaporator coil, directly affecting system efficiency and cooling capacity. HVAC technicians install this component as part of routine service or system repair when the existing orifice is damaged, worn, or when recharging with a different refrigerant requires a metering device change.

This restrictor orifice is suited for residential and light-commercial air conditioning applications. It installs in the liquid line at the evaporator inlet, typically in a piston-style or fixed-orifice metering assembly. When a system calls for a fixed metering device rather than a TXV, this orifice provides the pressure drop needed for proper evaporator performance. Techs should verify the orifice size matches the system's design specifications before installation.

Key Features

• Fixed orifice diameter of 0.061 inches for precise refrigerant metering
• Designed as a direct-fit restrictor for air conditioning refrigerant circuits
• Simple piston-style design with no moving parts to wear or fail
• Compatible with standard liquid-line orifice housings used in residential AC systems

Compatibility

Designed as an OEM-style replacement restrictor orifice for air conditioning systems requiring a 0.061-inch fixed metering device.

Installation Notes

Installation should be performed by a certified HVAC technician holding an EPA Section 608 refrigerant handling certification. Recover all system refrigerant before opening the refrigerant circuit. Confirm orifice orientation and flow direction before seating the piston in its housing. After reassembly, leak-test the connections and verify system pressures match manufacturer specifications before returning the unit to service.

Technical Specifications

• Item Type: Restrictor Orifice
• Orifice Diameter: 0.061 inches
• Application: Air Conditioner

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 664061R