Goodman b1789880 Flow Check Piston Kit 0.080 Inch Orifice

Product Description

The GOODMAN b1789880 is a flow check piston kit designed for refrigerant metering in split-system heat pump and air conditioning applications. The kit includes a piston with a 0.080-inch orifice that controls refrigerant flow direction and rate through the system's metering device assembly. This type of fixed-orifice piston replaces a TXV or serves as the primary metering component in piston-style refrigerant circuits. HVAC technicians install this kit during system commissioning, refrigerant circuit repairs, or when converting a system to a different orifice size to match a new indoor or outdoor unit.

This flow check piston kit is suited for residential and light commercial split-system heat pumps and central air conditioners that use a piston-style metering device. The 0.080-inch orifice size is matched to specific system capacities and refrigerant types, making orifice selection critical to system efficiency and proper superheat. Technicians replacing a mismatched piston, repairing a failed check assembly, or performing a matched-system changeout will find this a direct-fit OEM-style replacement component.

Key Features

• 0.080-inch orifice diameter for fixed metering of refrigerant flow
• Compact form factor: 0.5 inches tall, approximately 0.469 inches wide
• Lightweight at 0.017 pounds for easy handling during installation
• OEM-style fit for piston-type refrigerant metering device assemblies
• Manufactured in the United States
• Sold individually; pack multiple quantity of 20 available for stocking orders

Compatibility

Designed as an OEM-style replacement piston for residential and light commercial split-system heat pump and air conditioning units that use a flow check piston metering assembly. Verify orifice size matches the system capacity and refrigerant type before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician certified to handle refrigerants under EPA Section 608 regulations. Recover all system refrigerant before disassembling the metering device assembly. Confirm the replacement orifice size is correct for the matched indoor and outdoor unit combination prior to reassembly. Follow the equipment manufacturer's service instructions and applicable mechanical codes when completing the repair.

Technical Specifications

• Orifice Size: 0.080 inches
• Unit Height: 0.5 inches
• Unit Width: 0.469 inches
• Weight: 0.017 pounds
• Product Class: Conversion Kits and Orifices
• Unit Type: Accessory
• Country of Origin: United States
• Vendor: Danfoss LLC
• Vendor Part Number: 119F7006

Standard Information

• Brand: GOODMAN
• Manufacturer Part Number: b1789880