Dwyer Instruments tl20-200-8b Pressure Gauge 200 Psi

Product Description

The DWYER INSTRUMENTS tl20-200-8b is a utility water pressure gauge designed for monitoring system pressure in plumbing, HVAC, and general water service applications. It features a 2-inch dial face with a 200 psi range, making it suitable for reading line pressure at a glance without external power or signal conditioning. The back-mount configuration with a 1/8-inch male pipe thread (MPT) connection allows direct installation into a pipe fitting or manifold port. This gauge is a standard field instrument installed by licensed plumbers, HVAC technicians, and pipefitters during commissioning, service, and pressure verification work.

This gauge fits residential and light commercial water systems where a compact, direct-reading pressure indicator is needed at a tee, valve, or service port. The back-mount orientation keeps the dial facing outward when installed in a panel, cabinet, or tight mechanical space. Typical applications include domestic water supply lines, boiler system monitoring, irrigation manifolds, and HVAC chilled or hot water loops where pressure readings up to 200 psi are required.

Key Features

• 200 psi pressure range for water service and general utility applications
• 2-inch dial face for clear, direct reading in the field
• 1/8-inch MPT back-mount connection for straight in-line installation
• Compact form factor suited for panels, cabinets, and confined mechanical spaces
• No external power required — purely mechanical pressure indication

Compatibility

Designed as an OEM-style replacement or new-installation utility pressure gauge for residential and light commercial water, plumbing, and HVAC hydronic systems using standard 1/8-inch NPT fittings.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician. Shut off and depressurize the water or hydronic circuit before threading the gauge into the fitting. Apply thread sealant tape or pipe-thread compound to the male threads before installation — do not overtighten, as the gauge body can crack. Verify the installed pressure range does not exceed the system operating pressure to avoid damage to the bourdon tube mechanism.

Technical Specifications

• Pressure Range: 0 to 200 psi
• Dial Size: 2 inches
• Connection Size: 1/8 inch MPT
• Mount Type: Back mount
• Application: Utility water pressure

Standard Information

• Brand: DWYER INSTRUMENTS
• Manufacturer Part Number: tl20-200-8b