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The Blow Tie Spunding Valve is used to release excess pressure on a pressurized fermenter or from a keg while doing pressure transfers. Thanks to the large surface area of the diaphragm, this style spunding valve is much more accurate than the poppet style. 8 mm Duotight fittings at both inlet and outlet make this unit perfect for use with EVABarrier 8 mm OD tubing (D1717 or D1718). The blow off pressure can be set by either pairing the BlowTie with the Push-In Pressure Gauge (D1160), or by attaching it to an empty keg that has been pressurized to the desired psi.




  • Made from food grade acetal
  • Stainless screws
  • Easily disassembles for cleaning
  • 8mm (5/16") Duotight fittings at both ends
  • 0-40 psi pressure rating

Duotight BlowTie | Diaphragm Spunding Valve | 0-40 PSI | 8 mm Duotight

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