Parts to Your Door 51769 Steam Gauge 4 in 1/4 Mpt

Product Description

The PARTS TO YOUR DOOR 51769 is a 4-inch compound steam gauge rated for 30 inches of mercury vacuum to 30 PSI, designed for use on steam boiler systems where both pressure and vacuum conditions must be monitored. The gauge features a 1/4-inch male pipe thread (MPT) connection and a 4-inch dial face, making it easy to read in mechanical rooms and boiler installations. This type of compound gauge is standard equipment for steam heating systems and is installed by licensed plumbers, HVAC technicians, and boiler mechanics. It cross-references Peerless part number 99-0190.

This gauge is suited for residential and light commercial steam boiler applications where monitoring system pressure and vacuum is required during normal operation and service. It is a direct replacement for the Peerless 99-0190 and is used during routine boiler maintenance, new installations, and service calls on steam heating equipment. The 4-inch dial size provides clear readability in typical boiler room conditions.

Key Features

• 4-inch dial face for clear, at-a-glance pressure and vacuum readings
• Compound range: 30 inches of mercury vacuum to 30 PSI
• 1/4-inch MPT bottom connection for standard pipe thread fitment
• Cross-references Peerless part number 99-0190
• Suitable for steam boiler monitoring in residential and light commercial systems

Compatibility

This gauge is listed as a replacement for Peerless part number 99-0190 and is designed as an OEM-style replacement for steam boiler gauge applications requiring a 4-inch compound gauge with 1/4-inch MPT connection.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC boiler technician. Shut down the boiler and relieve all system pressure before removing or installing the gauge. Use appropriate thread sealant rated for steam service on the 1/4-inch MPT connection. Refer to local plumbing and mechanical codes for gauge replacement requirements on pressure vessels.

Technical Specifications

• Dial Size: 4 inches
• Connection Size: 1/4 inch MPT
• Gauge Type: Compound
• Pressure Range: 30 in Hg vacuum to 30 psi

Standard Information

• Brand: PARTS TO YOUR DOOR
• Manufacturer Part Number: 51769