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The WIKA 9748321 is a low-pressure analog gauge designed to measure gas pressure from 0 to 1500 psi. It features a 2.5-inch dial with a single scale, a steel case, and copper alloy wetted parts rated at 1.5% of scale accuracy. The acrylic lens provides a clear reading in the field. A 1/4-inch NPT lower-mount connection positions the gauge inline at the bottom of the fitting, keeping the face readable when panel- or manifold-mounted. Licensed HVAC technicians, plumbers, and gas service professionals install this gauge in applications where a compact, reliable pressure indication point is required.
This gauge is suited for residential and light commercial gaseous-medium systems where a permanent or semi-permanent pressure read point is needed. Lower-mount NPT threading makes it compatible with standard pipe fittings and manifold blocks common in HVAC refrigerant circuits, compressed-air lines, and gas distribution panels. The steel case holds up to typical mechanical shop and service environments. Its compact 2.5-inch dial is readable without close inspection once installed in a panel or equipment cabinet.
Designed as an OEM-style replacement or service addition for gaseous-medium pressure monitoring points requiring a 1/4-inch NPT lower-mount gauge with a 0 to 1500 psi range.
A licensed plumber, HVAC technician, or qualified gas service professional should install this gauge in accordance with local codes and applicable ASME or IFGC requirements. Shut off and depressurize the system completely before threading the gauge into the fitting. Apply an appropriate thread sealant to the NPT threads and hand-tighten before using a wrench to snug the connection — do not overtorque the case. Verify the zero reading before returning the system to service pressure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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