Watts 0276500 Valve Refrigerant What is the purpose of

What is the purpose of the automatic ball checks in this gauge

OEM Compatibility: Specifically designed to replace Cecilware CD140 and PLA006

Constructed with a rugged bronze body

Its compact 1

Engineered with a Single Pole Double Throw (SPDT) contact configuration

Watts 0276500 Valve Refrigerant What is the purpose ofFor high capacity pressure protection in commercial and industrial hydronic systems, the Watts 0276500 (Series 174A 1 1 2 30) is a heavy duty ASME Section IV safety relief valve designed specifically for hot water heating boilers. This 1 1 2 inch bronze boiler pressure relief valve is factory set at 30 PSI, providing a high steam relief capacity of 2,020,000 BTU hr. Built with a rugged bronze body and a stainless steel spring, the 174A series utilizes