Valve Proving System

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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