Excess Flow Valve Model P41 1" CTS .101 WALL, 3408, 12" LONG, with Series 300 Valve

Excess Flow Valve # P41
by Gas Breaker

Excess Flow Valve Model P41 1 “CTS .101 WALL, 3408, 12” LONG, with Series 300 Valve

• Work with the flow of natural gas as the sensing source
• Activate when a line rupture causes an excess flow condition
• Automatically reset and resume normal operation after repairs are made using a slight gas bypass to re-pressurize the line
• Non-bypass models are also available. These models are reopened by correcting the excess flow condition and manually applying back pressure to the line and valve.
• Install in minutes with standard tools
• Operate within your normal service line sizing requirements to avoid tripping by snap-acting loads
• Higher capacity EFVs can accommodate future increases in gas loads.
• Maintain stability under turbulent flow conditions by using a unique, dynamically balanced float
• Available for virtually all pressures and service line capabilities
• In-line installation makes them tamper-proof
• Can be fabricated with fitting and piping materials from most manufacturers
• UL Listed 4DU5 for use on propane service line applications


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With heavy hearts, we announce the passing of our founder James (Jim) Bell.

Jim passed away on June 15, 2021. He will be greatly missed by his colleagues, family, friends and the many people he impacted over his 89 years of life. His full obituary can be found here.

In observance of his passing, all ECCO/GASCO offices will be closed, Friday, June 18.