With this complete kit you'll be ready to use the BlowTie Spunding Valve right out of the box. The BlowTie is used to release excess pressure on a pressurized fermenter or from a receiving keg during pressure transfers. This diaphragm spunding valve is much more accurate than the spring and poppet style, and works much better at lower pressures.
Pressure fermentation is becoming more and more popular at the homebrew level, but in order to do it safely and accurately, you need a way to release excess pressure. You'll pressurize your vessel to your desired psi, but once fermentation begins and those hungry, active yeast start creating CO2, the pressure inside the vessel will increase. Attach a spunding valve and set it to your desired pressure, and it will blow off when the pressure gets to high and close up again when it's back to your desired psi.
Even if you don't have a pressurizable fermenter, you may have done pressure transfers from keg to keg during filtering or after fining. During pressure transfers, it's a good idea to have a bit of head pressure in the receiving keg, especially if you're transferring beer that is already carbonated. Having a spunding valve in place will allow you to consistently control the head pressure and give you more consistent results, without losing carbonation in the process.
Diaphragm vs. Poppet
With the poppet style spunding valve, a spring pushes against a poppet to keep the valve closed. When the poppet lifts up to open, the surface area the gas pushes against becomes larger, and the spring has to work harder to push the poppet down and reseal the valve. This can lead to more gas being released than intended, and the remaining pressure in your vessel may be at a lower psi than your spunding valve’s set psi.
Instead of a poppet, the spring inside the BlowTie pushes against a diaphragm, which has an immensely larger surface area. This means the surface area that the gas pushes against while the diaphragm is closed is significantly closer to the surface area it pushes against when the diaphragm is open. This leads to higher accuracy, and the remaining pressure after excess gas is released will be much closer to your set blow off pressure.
- Pressure Gauge
- Ball Lock Disconnect
- Duotight Tee & Flared Duotight Fitting
- 2x Lengths of EVABarrier 8mm OD Tubing
KegLand, a land of stainless steel where everything is on tap! We have all your beer brewing and keg dispensing essentials available to make your wildest beer dreams a reality. Join us on our never ending quest to discover, create and dispense beverage perfection. Kegland is a place where our amber bounty flows abundantly. It’s a place where every day is a celebration in honour of all that comes from the keg. We are in awe of the mysterious power of kegs where the seemingly endless flow of good times originates and with every pour from the faucet our bond between man and beverage grows stronger.
FREE Shipping over $49
Flat Rate $7.95 under $49
- FREE Shipping on all orders over $49 shipping within the contiguous U.S.
- Most in-stock orders ship the following business day.
- Standard ground shipping typically takes 1-3 business days in transit
- please note: we are experiencing delays in some fulfillment centers due to COVID-19 and wildfires.
FedEx / UPS / USPS Shipping:
- FREE over $49*
- Flat rate $7.95 under $99
- 1-3 business days in transit
- Does not require Signature
We're committed to your total satisfaction. You may return your items within 30 days of their delivery. Please follow the instructions below.
- Returns must be in brand new condition.
- Items must be returned in their original packaging.
- Items must include all parts, pieces, and manuals.
- Items cannot be assembled or used in anyway.
Restocking fees are typically not applied, however, in some cases a restocking fee not to exceed 30% will be withheld from your returned merchandise total. Shipping costs are non-refundable.
If you have any further questions, please do not hesitate to contact us!
* Free Shipping only applies to orders over $49.00, shipping within the contiguous United States.