Weil McLain 383-500-275 Pressure/Temperature Gauge Check Valve

The Weil McLain 383-500-275 is a pressure/temperature gauge check valve designed for use as a pressure sensor line check valve in Weil McLain Ultra Commercial and SlimFit Commercial gas boiler systems. This component serves as a critical safety and monitoring element in high-efficiency boiler installations.

Key Features:

• Prevents backflow in pressure sensor lines using a check valve mechanism
• Allows one-directional fluid flow to protect pressure/temperature gauges
• Threaded connections for easy integration into existing boiler systems
• Compact design suitable for confined mechanical spaces
• Engineered to handle high pressures and temperatures typical of boiler applications

This check valve fits Weil McLain Ultra Series 3, 3UE, and 3-CT boilers, as well as Ultra Commercial and SlimFit Commercial models. It ensures accurate pressure readings while preventing system backflow that could damage sensitive monitoring equipment. The valve is constructed from durable materials designed to withstand demanding operating conditions in commercial and residential hydronic heating systems.