Parker 20 Htx-s Steel Flared Tube Union 1-1/4 in

Product Description

The PARKER 20 HTX-S is a steel flared tube union designed to join two flared tube ends in hydraulic, pneumatic, and fluid-transfer line applications. This fitting uses a 37-degree flare angle on both ends and accepts a 1-1/4 inch tube outside diameter. It is rated for a maximum working pressure of 4,000 psi, making it suitable for demanding high-pressure service. The union configuration allows in-line connection or disconnection of tubing without cutting or deforming the lines. Licensed plumbers, HVAC technicians, and industrial pipefitters are the typical tradespeople who install this type of fitting.

This fitting is used in residential and commercial applications where two sections of 1-1/4 inch OD flared steel tubing must be joined. Common install scenarios include refrigerant line repair, hydraulic system assembly, fuel line connections, and instrumentation tubing runs. The flare-by-flare end configuration requires both mating tube ends to be properly flared at 37 degrees before assembly. It is a standard stocking component in trade shops that service high-pressure fluid systems.

Key Features

• 37-degree flare angle on both ends for a leak-resistant metal-to-metal seat
• Rated to 4,000 psi maximum working pressure
• Accepts 1-1/4 inch tube outside diameter on both sides
• Steel construction for strength and durability in high-pressure service
• Flare x Flare union design allows in-line disconnection without cutting tubing

Compatibility

Designed as an OEM-style replacement or new-installation fitting for high-pressure fluid systems using 1-1/4 inch OD steel tubing with a 37-degree flare end connection.

Installation Notes

Installation should be performed by a licensed tradesperson familiar with flared tube fitting assembly. Before servicing any line, depressurize and isolate the system completely. Both tube ends must be cut square and flared to a proper 37-degree angle using a calibrated flaring tool before assembling the union. Tighten the union nuts to the fitting manufacturer's standard procedure for steel flare fittings — do not overtighten, as this can crack the flare seat.