Coilhose Pneumatics 593 Pneumatic Hose Coupler 3/8 in

Product Description

The COILHOSE PNEUMATICS 593 is a male NPT threaded pneumatic hose coupler designed for compressed air systems in automotive and general industrial service environments. It features a 3/8-inch body diameter, accepts a 1/4-inch MNPT threaded connection, and is rated for pressures up to 300 psi. The steel construction with a nickel-plated finish provides corrosion resistance and durability under repeated connect-disconnect cycles. This coupler follows the Tru-Flate automotive interchange profile, making it a straightforward drop-in fit for shops and service facilities already running Tru-Flate-compatible tooling and fittings. Licensed HVAC techs, plumbers, and automotive air tool users will recognize this as standard shop hardware installed by maintenance personnel and trades professionals alike.

This coupler is suited for compressed air distribution systems in automotive service bays, general workshop environments, and light industrial applications. It is typically installed at the end of an air supply line or drop to provide a quick-connect point for air tools, blow guns, or inflation equipment. The Tru-Flate automotive interchange profile is one of the most widely used coupling standards in North American automotive shops, and this coupler integrates directly into existing Tru-Flate-compatible setups without adapters. The rated temperature range of -40 degrees F to 250 degrees F supports both cold-weather startup conditions and higher-temperature ambient shop environments.

Key Features

• Tru-Flate automotive interchange profile for broad compatibility with existing shop fittings
• 1/4-inch MNPT threaded connection for standard pipe thread installation
• 3/8-inch body diameter for adequate flow capacity in typical air tool applications
• 300 psi maximum working pressure rating
• Steel body with nickel-plated finish for corrosion resistance and durability
• Rated from -40 degrees F to 250 degrees F for wide operating temperature range

Compatibility

Designed as an OEM-style replacement or addition for compressed air systems using Tru-Flate automotive interchange couplers with 1/4-inch MNPT threaded connections.

Installation Notes

Installation is performed by maintenance technicians or trades professionals familiar with compressed air systems. Depressurize the air supply line completely before removing or installing any coupler. Apply thread sealant tape to the MNPT threads per standard practice and tighten to hand-tight plus a firm wrench turn, avoiding over-tightening that can crack fittings. Verify the system is leak-free at full operating pressure before returning to service.