ASCO 8210B21 Solenoid Valve 30067439-890 What is the purpose of

What is the purpose of the manual stem on the 200RB7T5M

single-throw (SPST) switch that opens on temperature drop

As a seasoned technician knows

the Conbraco 18C-402X-38 Valve (also known under the Apollo brand) provides critical protection against thermal expansion and over-pressure conditions

vertical air gap

ASCO 8210B21 Solenoid Valve 30067439-890 What is the purpose ofThe ASCO 8210B21 is a robust 2 way normally closed solenoid valve designed for high performance fluid control in demanding HVACR and industrial environments. This pilot operated solenoid valve features a durable brass body and reliable NBR seals, making it ideally suited for general service applications involving air and water. With a 3 8" NPT connection and a 1. 16 Cv flow coefficient, it maintains a consistent operating pressure differential of 5 to