Dwyer Instruments tl40-030-4l Water Pressure Gauge 30 Psi

Product Description

The DWYER INSTRUMENTS tl40-030-4l is a utility water pressure gauge designed for monitoring water system pressure in plumbing and mechanical applications. It features a 4-inch dial for easy readability and a 1/4-inch male pipe thread (MPT) lower-mount connection for direct inline installation. The gauge reads up to 30 psi, making it well-suited for residential and light commercial water supply and distribution lines. Licensed plumbers and mechanical contractors install this type of gauge as part of standard pressure monitoring and system diagnostics work.

This pressure gauge is used in water supply systems, boiler feed lines, irrigation distribution, and general plumbing utility applications where a reliable, easy-to-read analog pressure indication is needed. The lower-mount configuration allows the gauge to thread directly into a vertical pipe or tee fitting, keeping the dial face upright and visible. It is appropriate for both new installations and replacement service on existing gauge ports.

Key Features

• 4-inch dial face provides clear pressure readout at a distance
• 30 psi range suited for residential and light commercial water systems
• 1/4-inch MPT lower-mount connection for direct threaded installation
• Utility-grade construction for standard water pressure monitoring
• Analog dial requires no power source or wiring

Compatibility

Designed as an OEM-style replacement or new-install utility pressure gauge for residential and light commercial plumbing and water distribution systems with 1/4-inch MPT gauge ports.

Installation Notes

Installation is typically performed by a licensed plumber or mechanical contractor. Shut off the water supply and relieve system pressure before removing an existing gauge or threading in a new one. Apply thread sealant tape or pipe compound to the male threads before installation. Do not overtighten the gauge body, as cracking the socket or case can damage the gauge and void seating integrity.

Technical Specifications

• Pressure Range: 0 to 30 psi
• Dial Size: 4 inches
• Connection Size: 1/4 inch MPT
• Mounting Style: Lower mount
• Gauge Type: Utility water pressure

Standard Information

• Brand: DWYER INSTRUMENTS
• Manufacturer Part Number: tl40-030-4l