Parker R46-03BK Miniature Air Regulator 3/8 Npt 60 Psi

Product Description

The PARKER R46-03BK is a miniature compressed air regulator designed to reduce and maintain downstream pressure in pneumatic systems. Part of the Parker R46 series, this regulator accepts supply pressures up to 150 psi and provides an adjustable output range of 0 to 60 psi through a 3/8-inch NPT port. The plastic body keeps weight low at 0.38 pounds, making it a practical choice for compact panel-mount or inline installations. Licensed HVAC technicians, plumbers, and industrial maintenance professionals install this type of regulator where precise low-pressure control is needed in air lines, light fluid service, or pneumatic control circuits.

This regulator is suited for applications involving compressed air or water service within a temperature range of 40 to 125 degrees F. Its miniature form factor fits space-constrained enclosures, pneumatic panels, and inline installations where a full-size regulator would be impractical. The 1/4-inch gauge port thread allows an optional downstream pressure gauge to be added without additional fittings. No internal relief function is included, so downstream pressure relief must be addressed separately if the application requires it.

Key Features

• 3/8-inch NPT port for direct inline installation without adapters on standard air lines
• 0 to 60 psi output pressure range for low-pressure pneumatic control applications
• 150 psi maximum supply pressure rating handles typical shop-air and compressed air system inputs
• Miniature body measures 2.06 inches wide by 3.43 inches high for space-constrained installations
• 1/4-inch gauge port thread allows optional downstream gauge addition
• Lightweight plastic construction at 0.38 pounds reduces load on panel-mount assemblies

Compatibility

Designed as an OEM-style replacement or new-installation miniature regulator for compressed air and water service pneumatic systems requiring a 3/8-inch NPT connection and a 0 to 60 psi output range.

Installation Notes

Installation should be performed by a qualified technician familiar with pneumatic system service. Depressurize and lock out the air supply before connecting or disconnecting the regulator. Apply thread sealant appropriate for plastic fittings on the NPT connections and avoid over-torquing, which can crack the plastic body. If the application requires downstream overpressure protection, install a separate relief valve, as this regulator does not include an internal relief function.