Gas Pressure Switch

Gas pressure switches made by Karl Dungs, Inc......$87.50

Mount these switches directly onto DMV-DLE valve body or install switch independently--please specify. NFPA requires high and low gas pressure switches on any gas oven over 150,000 BTU/hr.

CPI 400 (Closure Proved Indicator) made by Karl Dungs, Inc......$62.50

CPI 400 mounts directly onto DMV-DLE valve body. It is wired to flame monitoring system to verify that the main gas valve is closed prior to startup sequence. Proof of valve closure is NFPA mandatory on gas ovens over 400,000 BTU/hr.

Understanding Furnace Combustion & Safety (article with illustrations)

Understanding Glory Hole Combustion (article with illustrations)