Valve Proving System for automatic Shutoff Valves

The Siemens LDU11 gas valve leak test control checks for leakage through the shutoff valves prior to burner start-up and/or immediately after burner shutdown. The cost effective, easy to install LDU11 adds a substantial degree of safety to any combustion system.

• Checks both shutoff valves for leakage
• Improves system safety
• No inlet gas pressure limitations
• Globally approved – cULus, FM, CSA, CE
• Easy-to-read dial indicates progress of test program