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BlowTie Diaphragm Spunding Valve - KL03643

by KegLand
1 review
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  • BlowTie Spunding Valve 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 ann poppet style, and works much better at lower pressures.

KegLand item #: KL03643

$14.95
& FREE Shipping over $49. Easy Returns.
No sales tax. (unless shipping to TX)

Most items can be returned within 30 days of receipt for a refund. Shipping charges are non-refundable.

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  • BlowTie Spunding Valve 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 ann poppet style, and works much better at lower pressures.

KegLand item #: KL03643


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Details »
The BlowTie Spunding Valve 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
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.
 
Pressure Transfers
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.
 
Set Up
The BlowTie spunding valve comes with 8 mm Duotight fittings on the inlet and outlet, and we recommend using it with EVABarrier 8 mm OD tubing (D1717 or D1718). You'll also need the flare Duotight fitting (DUO106) in order to attach it to a ball lock or pin lock. Dialing in your desired pressure is very simple. Although you would ideally use the BlowTie with the Push-In Pressure Gauge (D1160) and Duotight Tee Fitting (DUO109), as seen in the example photo, you can easily set the blow off pressure without it. To do this, simply pressurize an empty keg to your desired psi using your CO2 regulator. Before attaching the BlowTie to the gas post, be sure to turn the dial clockwise until it is fully closed. Once attached, slowly turn the dial counterclockwise until gas starts coming out, then slightly turn the dial back to stop the gas flow. The BlowTie is now set to your desired pressure.
 
Specifications:
  • Made from food grade acetyl
  • Stainless screws
  • Easily disassembles for cleaning
  • 8mm (5/16") Duotight fittings at both ends
  • 0-40 psi pressure rating

 

Please note: the BlowTie does not come with the pictured accessories. Please see "You Might Also Need" below for the other products shown in the example photo.

FREE Shipping over $49

Flat Rate $7.95 under $49

Shipping

  • 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

    Returns

      We're committed to your total satisfaction. You may return your items within 30 days of their delivery. Please follow the instructions below.  

        Return Eligibility:     

        • 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.

        Customer Reviews
        5.0 Based on 1 Reviews
        Write a Review Ask a Question
        • Reviews
        • Questions

        Thank you for submitting a review!

        Your input is very much appreciated. Share it with your friends so they can enjoy it too!

        Filter Reviews:
        CW
        09/18/2019
        clement w.
        United States United States
        Great

        For my Fermzilla.

        More Items to Consider

        Product Overview

        The BlowTie Spunding Valve 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
        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.
         
        Pressure Transfers
        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.
         
        Set Up
        The BlowTie spunding valve comes with 8 mm Duotight fittings on the inlet and outlet, and we recommend using it with EVABarrier 8 mm OD tubing (D1717 or D1718). You'll also need the flare Duotight fitting (DUO106) in order to attach it to a ball lock or pin lock. Dialing in your desired pressure is very simple. Although you would ideally use the BlowTie with the Push-In Pressure Gauge (D1160) and Duotight Tee Fitting (DUO109), as seen in the example photo, you can easily set the blow off pressure without it. To do this, simply pressurize an empty keg to your desired psi using your CO2 regulator. Before attaching the BlowTie to the gas post, be sure to turn the dial clockwise until it is fully closed. Once attached, slowly turn the dial counterclockwise until gas starts coming out, then slightly turn the dial back to stop the gas flow. The BlowTie is now set to your desired pressure.
         
        Specifications:
        • Made from food grade acetyl
        • Stainless screws
        • Easily disassembles for cleaning
        • 8mm (5/16") Duotight fittings at both ends
        • 0-40 psi pressure rating

         

        Please note: the BlowTie does not come with the pictured accessories. Please see "You Might Also Need" below for the other products shown in the example photo.

        Part Number KL03643
        SKU FE960

        About KegLand

        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.

        Part Number KL03643
        SKU FE960

        FREE Shipping over $49

        Flat Rate $7.95 under $49

        Shipping

        • 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

          Returns

            We're committed to your total satisfaction. You may return your items within 30 days of their delivery. Please follow the instructions below.  

              Return Eligibility:     

              • 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.

              Customer Reviews
              5.0 Based on 1 Reviews
              Write a Review Ask a Question
              • Reviews
              • Questions

              Thank you for submitting a review!

              Your input is very much appreciated. Share it with your friends so they can enjoy it too!

              Filter Reviews:
              CW
              09/18/2019
              clement w.
              United States United States
              Great

              For my Fermzilla.


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