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Morrison Bros. 636 Series Emergency Shut-Off Valves

Morrison Bros. 636 Series Emergency Shut-Off Valves

Vendor: Morrison Bros. Co.

Valve Type(s):
Emergency Valve

Valve Description:

Single poppet emergency shut-off valves are installed on fuel supply lines under dispensers to minimize collision and fire hazards at the dispenser. Often referred to as the "impact valve," it is designed to shut off the flow of product in the event of a dispenser impact or a fire involving the dispenser.


This valve requires periodic inspection to ensure the shut-off mechanism is operating correctly. Always shut-off the power to the dispenser when changing filters or doing maintenance. This valve is not intended to be used as a "block valve" and should not be opened under pressure. Opening under pressure can damage or distort internal components.


  • 2" x 2" size is low profi le, simplifying the installation
  • High fl ow capacity
  • Fusible link melts and closes the valve at 165°F
  • When properly anchored, the valve breaks upon impact at the integral shear grove, closing the valve
  • Unibody design incorporates both boss-mount and post-mount for u-bolt mounting
  • Top threaded connections available in male, female, or union top
  • Integral test port allows the piping system to be tested without breaking piping connections
  • BSP threaded option available
  • 636DEF has DEF compatible coating

Construction Details

  • Body and shear section… Cast iron (e-coated)
  • Disc… Viton®
  • O-rings… Viton®
  • Gasket… Graphite
  • Shaft… Stainless steel
  • Handle… Aluminum

Valve Category:

Emergency Shut-Off Valves

Valve Subcategory

Single Poppet

Item Number Size (in) Outlet Weight (lbs) Request Quote
636F--0000 AVU 1-1/2 x 1-1/2 Female 6.0 Request Quote
636F--0100 AVU 2 x 1-1/2 Female 6.0 Request Quote
636F--0200 AVU 2 x 2 Female 6.25 Request Quote
636M--0000 AVU 1-1/2 x 1-1/2 Male 6.0 Request Quote
636M--0100 AVU 2 x 1-1/2 Male 6.0 Request Quote
636M--0200 AVU 2 x 2 Male 6.25 Request Quote
636U--0000 AVU 1-1/2 x 1-1/2 Union 7.25 Request Quote
636U--0100 AVU 2 x 1-1/2 Union 6.0 Request Quote
636DEF0000 AVU 1 x 1 Female 7.60 Request Quote
   WARNING: Cancer and
   Reproductive Harm -