Parker FAMS-46 Male Straight Adapter 1/4 in Tube 3/8 Npt

Product Description

The PARKER FAMS-46 is a compression tube male straight adapter designed to connect a 1/4-inch OD tube to a 3/8-inch NPT male threaded port. The fitting body is constructed from Perfluoroalkoxy (PFA) and Polytetrafluoroethylene (PTFE), materials known for broad chemical resistance and suitability in high-purity or corrosive fluid applications. The compression-style grip uses a plastic compression mechanism that bites into the tube OD to form a leak-resistant seal without brazing or soldering. This adapter is typically installed by plumbers, HVAC technicians, or chemical process tradespeople working on tubing runs requiring a transition to NPT-threaded equipment or valves.

This fitting is suited for low-to-moderate pressure tubing systems where chemical compatibility is a primary concern, including instrumentation lines, chemical feed systems, and specialty HVAC or refrigeration sensing lines. The Tube x NPT configuration makes it a practical choice when connecting flexible or rigid plastic tubing to a standard NPT port on a pump, valve, or instrument body. The single-piece, individual-quantity packaging is standard for field replacement or small-batch service work.

Key Features

• PFA and PTFE construction provides excellent resistance to aggressive chemicals and high-purity process fluids
• Compression tube fitting design eliminates the need for brazing, soldering, or flaring
• 1/4-inch tube OD inlet with 3/8-inch NPT male thread outlet for direct port connection
• Plastic grip-type compression mechanism for tool-accessible, repeatable assembly
• Straight adapter profile minimizes flow restriction in the tubing run

Compatibility

Designed as an OEM-style compression fitting for tubing systems using 1/4-inch OD tube transitioning to 3/8-inch NPT threaded ports. Specific system or equipment compatibility was not stated in available product data.

Installation Notes

Installation is typically performed by a licensed plumber or qualified HVAC or instrumentation technician. Shut off all fluid flow and depressurize the line before disassembly or installation. Hand-tighten the compression nut onto the tube, then use an appropriate wrench to snug the fitting per standard compression fitting practice — do not overtighten PFA or PTFE fittings as the plastic components can crack under excessive torque. Refer to applicable codes such as the IPC or system manufacturer specifications for pressure ratings and approved fluid compatibility before placing this fitting in service.