Parker AVTS4D-4 Swivel Tee Depressor Access Valve 500 Psi

Product Description

The PARKER AVTS4D-4 is a forged brass swivel tee fitting with an integrated depressor access valve, designed for refrigerant and compressed fluid systems operating up to 500 psi. The fitting accepts 0.25-inch tube OD on the run port and features a flared female connection style. The swivel design allows the tee to rotate during installation without disturbing the tubing run, reducing the risk of joint stress. The built-in depressor pin provides direct access to the system service port without requiring a separate Schrader core tool. HVAC technicians and refrigeration service pros use this fitting for line-set service access points in split systems and commercial refrigeration circuits.

This fitting is suited for residential and light commercial HVAC and refrigeration applications where a compact, inline service access point is needed on a 0.25-inch flare line. It is typically installed on suction or liquid lines where periodic refrigerant charge checks or recovery connections are required. The forged brass construction handles the pressure and temperature cycling common in active refrigerant circuits. Sold individually, it is a direct field-install component requiring no special adapters beyond standard 0.25-inch flare tooling.

Key Features

• 500 psi maximum working pressure suits high-side and low-side refrigerant service
• Integrated depressor access valve eliminates a separate Schrader adapter at the service point
• Swivel run design rotates freely during make-up to prevent tubing torque and flare damage
• Forged brass body provides strength and corrosion resistance in refrigerant environments
• 0.25-inch tube OD flared female run connection matches standard HVAC line-set sizing

Compatibility

Designed as an OEM-style field fitting for 0.25-inch OD flare-connection refrigerant lines in residential and light commercial HVAC and refrigeration systems.

Installation Notes

Installation should be performed by a licensed HVAC or refrigeration technician familiar with EPA Section 608 refrigerant handling requirements. Recover system refrigerant and relieve pressure before making or breaking any flare connections. Use a calibrated torque wrench and follow flare-fitting make-up practices per the fitting manufacturer and applicable mechanical codes. Inspect the depressor pin and valve seat for debris before placing the fitting into service.