Shear Valves

DEF Shear Valve.psd
DEF Shear Valve.psd DEF Shear Valve.psd DEF Shear Valve.psd

Shear Valves

FLEX-ING™ brand 1½" diesel exhaust fluid shear valves shut off the flow of DEF/AdBlue® in the event of a vehicle collision with a dispenser preventing an excessive and uncontrolled release into the environment. The optional e-coated mounting bracket allows installation both in containment sumps beneath the dispenser as well as direct mounting to the concrete forecourt.

  • Integrated wrench flats for easy installation.
  • Mounting bracket kit allows for in-sump containment or flush mounting.
  • Available with either 1½" NPT or BSPT inlet (bottom) and 1" NPT or BSPT outlet (top) options.
  • Body: Stainless steel
  • Mounting bracket: E-coated steel
  • Height: 3¾" (95.25 mm)
  • Break force: Under 650 pound-feet (884 N-m)
  • Break force within parameters established by UL842 for product shear valves.
  • Must be installed with locally supplied 1" rigid pipe threaded into outlet.
Model Number Description
663100001 DEF shear valve, 1½" NPT inlet, 1" outlet
663100021 DEF shear valve, 1½" BSPT inlet, 1" outlet
66320000 Mounting bracket for DEF shear valve including U-bolt, nuts and bracket guides


Title Type Size
407296001 r2 DEF Shear Pipe.pdf PDF 1.14 MB


Title Type Size
CD_SSH_66320000_001.dwg DWG 0.2 MB
CD_SSH_66320000_001.pdf PDF 0.03 MB
CD-SSH-663100XX_001_01.dwg DWG 3.07 MB
CD-SSH-663100XX_001_01.pdf PDF 0.1 MB