{"product_id":"duotight-blowtie-2-complete-kit-diaphragm-spunding-valve-builtin-pressure-gauge-015-psi-8-mm-ball-lock-quick-disconnect-qd","title":"Duotight BlowTie 2 | Complete Kit | Diaphragm Spunding Valve | Built-In Pressure Gauge | 0-15 PSI | 8 mm Duotight | Duotight Ball Lock Quick Disconnect (QD)","description":"\u003cul\u003e \u003cli\u003e Automatically release pressure inside your fermenter during pressure fermentations\u003c\/li\u003e \u003cli\u003e Regulate beer flow during pressurized transfers from fermenter to keg\u003c\/li\u003e \u003cli\u003e Built-in pressure gauge for easy reference when adjusting the spunding valve\u003c\/li\u003e \u003cli\u003e Pressure gauge is interchangeable—swap to different pressure ranges that better suit your application\u003c\/li\u003e \u003cli\u003e Diaphragm spunding valves offer higher accuracy compared to spring \u0026amp; poppet spunding valves\u003c\/li\u003e \u003cli\u003e Comes complete with Duotight ball lock QD and rigid joiner\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e With this complete kit you'll be ready to use the BlowTie 2 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.\u003c\/p\u003e \u003cp\u003e This version of the Spunding Valve Kit includes the Duotight Ball Lock QD which allows you to attach the BlowTie directly to the QD via the 8 mm rigid joiner.\u003c\/p\u003e \u003cp\u003e The BlowTie 2 can also be upgraded with a Digital Mini Pressure Gauge.\u003c\/p\u003e \u003cp\u003e \u003cstrong\u003ePressure Fermentation\u003c\/strong\u003e\u003cbr\u003e 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.\u003c\/p\u003e \u003cp\u003e \u003cstrong\u003ePressure Transfers\u003c\/strong\u003e\u003cbr\u003e 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.\u003c\/p\u003e \u003cp\u003e \u003cstrong\u003eDiaphragm vs. Poppet\u003c\/strong\u003e\u003cbr\u003e 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. \u003c\/p\u003e \u003cdiv\u003e \u003cp\u003e 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.\u003c\/p\u003e \u003cdiv\u003e \u003cp\u003e \u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e BlowTie 2 w\/ Integrated Pressure Gauge (0-15 psi)\u003c\/li\u003e \u003cli\u003e 8 mm Duotight Gray Ball Lock Disconnect\u003c\/li\u003e \u003cli\u003e 8 mm OD Rigid Plastic Joiner\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cp\u003e \u003c\/p\u003e","brand":"KegLand","offers":[{"title":"Default Title","offer_id":51917337821473,"sku":"FE964","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/7521\/2321\/files\/50934.jpg?v=1760469078","url":"https:\/\/morebeer.mom\/products\/duotight-blowtie-2-complete-kit-diaphragm-spunding-valve-builtin-pressure-gauge-015-psi-8-mm-ball-lock-quick-disconnect-qd","provider":"MoreBeer!","version":"1.0","type":"link"}