The Honeywell Kromschröder DH8TN40 is a manual push-to-test gauge isolation valve, brass body with nickel-plated finish, sized ¼" x ¼" FNPT. It protects a pressure gauge against pressure surges by isolating it from the line; pressing the button connects the gauge for a reading, and releasing it shuts off flow to the gauge while automatically venting residual pressure. Rated to a maximum inlet pressure of 5 bar (70 psig) for gas and air. Manufactured by Honeywell Kromschröder.
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