GSBK_Model P41-3408 with series 1100 valve_PRODIMAGE
GSBK_Model P41-3408 with series 1100 valve_PRODIMAGE

Excess Flow Valve Model P41, with Series 1100 Valve


Gas Breaker

Catalog ID:


Excess Flow Valve Model P41 3/4" IPS SDR 11 3408, 12" LONG, with Series 1100 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
  • Accommodates pressures from 5 psi to 1000 psi (Depending on Series of EFV)
  • Flow Ranges from 1,000,000 to 24,000,000 BTU
  • Meet DOT 192.381 and MSS-SP-115
  • MSS-SP-142 for excess flow valves for use in natural gas system
  • Tested to, or in accordance with, ASTM F 1802
  • Compatible with steel or plastic fittings and piping materials from most manufacturers

Product details



PE Polyethylene (3408/4710)