Category Archives: Spunding Valve

Updated and Expanded! Build a Spunding Valve – How and Why

A Spunding Valve allows you to maintain a set pressure.  If pressure in the vessel exceeds the set point, it is expelled.  It generally consists of an adjustable PRV valve, a tee, a gauge and a way to connect to your keg.

Homebrewing Applications of a Spunding Valve

  1. Pressurized fermentation.  Ferment in a 5 or 10 gallon corny keg and use your Spunding Valve instead of an airlock.  This allows you to ferment at your desired pressure.
  2. Dry hop under pressure.  This allows you to dry hop earlier while reducing oxygenation.  Active yeast are more likely to metabolize oxygen that’s introduced during dry hopping during active fermentation.  Since CO2 is not exiting beer as vigorously under pressure, wanted compounds, flavors and aromas are more likely to stay in your beer under pressure.
  3. Naturally and accurately carbonate beer right in the keg.
  4. An airlock replacement.  Keep the valve wide open for non-pressurized fermentations.  Only do this if you have plenty of head space.  This wouldn’t make a great blow off tube.
  5. Keg to keg transfers.  Use the Spunding Valve to allow excess gas to exit the receiving keg as you transfer under pressure.  Helps you achieve a slow, controlled and pressurized transfer.
  6. Fix over-carbonated beers.
  7. Test for keg leaks.  Pressurize your keg to serving pressure.  Put the Spunding Valve on (with the pressure set well above your serving PSI) and note the reading.  The gauge should remain steady.  If pressure drops, you know you have a keg leak.  The digital build, see below, is especially helpful for this task,  The digital gauge reads with .1 PSI resolution making pressure changes easy to spot.  It’s worth noting that this checks the entire keg including gas body o-ring.  That spot is hard to check and other way as it’s only in function when the gas QD is on.  When the gas QD is on… it’s difficult to spray and check for bubbles underneath the gas QD.  Thanks to Scott Janish for this tip!
  8. As an airlock for long term aging of beers.  Airlocks can run dry over time.  A Spunding Valve will not.

Continue reading

Kegland BlowTie Diaphragm Spunding Valve – Complete Assembly… $27.99 + free shipping + $5 off $50 promo & Hands on Review

Kegland BlowTie Diaphragm Spunding Valve - Adjustable Pressure Relief Gauge Ball

Kegland BlowTie Diaphragm Spunding Valve – Adjustable Pressure Relief Gauge Ball

More Info

From the product description, check product page for current description, price and availability:

These are purpose built high quality valves KegLand. Not just hardware store pieces like the competitors.

The BlowTie 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. The blow off pressure can be set by either pairing the BlowTie with the included Push-In Pressure Gauge, or by attaching it to an empty keg that has been pressurized to the desired psi.

Specifications:
Made from food grade acetal
Stainless screws
Easily disassembles for cleaning
8mm (5/16″) Duotight fittings at both ends
0-40 psi pressure rating
Two functions in one great piece of hardware!

The Ball Lock QD Adjustable Pressure Valve W/Gauge can also be used to relieve pressure while filtering from one keg to another. At the same time it gives you the ability to read the pressure in the receiving keg. And Ferment under desired pressure!

If you prefer it sent with a Pin Lock type quick disconnect instead of the ball lock, please leave a note to seller at checkout, otherwise we will ship with ball lock type.

 

Spunding Valve Applications
  1. Pressurized fermentation.  Ferment in a 5 or 10 gallon corny keg and use your Spunding Valve instead of an airlock.  This allows you to ferment at your desired pressure.
  2. Dry hop under pressure.  This allows you to dry hop earlier while reducing oxygenation.  Active yeast are more likely to metabolize oxygen that’s introduced during dry hopping during active fermentation.  Since CO2 is not exiting beer as vigorously under pressure, wanted compounds, flavors and aromas are more likely to stay in your beer under pressure.
  3. Naturally and accurately carbonate beer right in the keg.
  4. An airlock replacement.  Keep the valve wide open for non-pressurized fermentations.  Only do this if you have plenty of head space.  This wouldn’t make a great blow off tube.
  5. Keg to keg transfers.  Use the Spunding Valve to allow excess gas to exit the receiving keg as you transfer under pressure.  Helps you achieve a slow, controlled and pressurized transfer.
  6. Fix over-carbonated beers.  Use the same general process as for carbonation (skipping the addition of fermentable sugar).  Use a carbonation chart to determine proper pressure for the temperature the keg is at.  The Spunding Valve allows excess pressure to vent until the new carbonation level is achieved.  You can agitate the keg to fix carbonation more quickly.
  7. Test for keg leaks.  Pressurize your keg to serving pressure.  Put the Spunding Valve on (with the pressure set well above your serving PSI) and note the reading.  The gauge should remain steady.  If pressure drops, you know you have a keg leak.  It’s worth noting that this checks the entire keg including gas body o-ring.  That spot is hard to check and other way as it’s only in function when the gas QD is on.  When the gas QD is on… it’s difficult to spray and check for bubbles underneath the gas QD.  Thanks to Scott Janish for this tip!
  8. As an airlock for long term aging of beers.  Airlocks can run dry over time.  A Spunding Valve will not.

 

Lots more about Spunding Valves on our Spunding Valve Build Resource Post

As if this posting, this is eBay offering is selling for just $27.99. Shipping is also free to many US addresses.  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

Kegland BlowTie Diaphragm Spunding Valve – Adjustable Pressure Relief Gauge Ball

Check out my Hands on Review of this great assembly!  Hands on Review: Kegland BlowTie Diaphragm Spunding Valve!

Stacking Promo: As of this posting, Lion Brewing Solutions is giving you $5 off any $50 order when you like their Facebook page, while you’re at it… connect with HBF on Facebook.  Just like the page and enter a note at checkout saying “I liked your Facebook page, I’ll take my $5 off $50” along with your name on Facebook.  Lion Brewing Solutions will confirm you like their page and refund you $5 from your $50+ purchase.  Limited to one use per Facebook account.  It’s worth noting that this applies to everything.  Even items and lines that are not typically discounted.

$5 Off $50 at Lion Brewing Solutions – with FB like

Also: Kegland DuoTight Push-In Fittings & EVABarrier Double Wall Draft Tubing at MoreBeer

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

More: Recent Great Deals

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Digital Pressure Gauge – back at $15.89 + Spunding Valve Build

Digital Low Pressure Gauge with 1/4'' NPT Bottom Connector and Rubber Protector by Uharbour, 0-60 psi, Accuracy 1%, Resolution 0.1psi

Digital Low Pressure Gauge with 1/4” NPT Bottom Connector and Rubber Protector by Uharbour, 0-60 psi, Accuracy 1%, Resolution 0.1psi


From the product description, check product page for current description, price and availability:

  • Measuring Media: Gas
  • Weight: 115g
  • Product size: diameter 76 * 32 cm (with rubber protector), 64*27mm (without rubber protector)
  • Sensor Type: Silicon Semiconductor Sensor
  • Accuracy: ± 1% .F.S @ 20 degrees centigrade
  • Resolution: 0.1 PSI
  • Pressure range: 0 ~ 60 PSI
  • Display: LCD readout, Auto shut off, Green light background, Battery status in the display.
  • Backlight Off Time: 30s
  • Auto off Time: 150s
  • Gear Shape Rubber Protector
  • Rubber Material: PVC
  • Pressure limit: 1.5 times of the full scale work pressure
  • Operating temperature: 0 ~ 45 degrees centigrade
  • Storage Temperature: -10 ~ 75 degrees centigrade
  • Instrument power supply: DC3V (2*1.5V AAA battery powered) (included)

A possible homebrew application for this is to use it as part of a Spunding Valve Build.   A Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and lots more. See: [Build a Spunding Valve].

6/15/19 2:30 PM Central: This had sold out not too long after I posted last time.  It’s available again at $15.89. That’s the best historical third party Amazon price I found, notwithstanding Lightning Deals or coupons. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page

Digital Low Pressure Gauge with 1/4” NPT Bottom Connector and Rubber Protector by Uharbour, 0-60 psi, Accuracy 1%, Resolution 0.1psi


Also: Build a Spunding Valve

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

More: Recent Amazon Finds

Control Devices Adjustable Pressure Relief Valve [0 to 100 PSI] – $9.40 + free prime ship & Building a Spunding Valve

Control Devices CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT

Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4″ Male NPT by Control Devices.

This valve is the heart of my Spunding Valve build.  It is essentially a manually adjustable pressure relief valve.  This one is adjustable from 0 to 100 PSI.  There is no homebrewing-related situation I’m aware of that would have you at 100 PSI.  Generally you’d be at or below 30 PSI.  As always, you’ll want to ensure that all components in your system (kegs, tubing, etc) are rated for your desired pressure.  Also, always read and follow manufacturer’s instructions and guidelines.

6/14/19 12:30 PM Central: This has dropped to $9.40.  That’s the lowest price we’ve seen in a while. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

Control Devices CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4″ Male NPT


See: Build a Spunding Valve for more information and additional configuration options

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

More: Recent Amazon Finds

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Hands on Review: Kegland BlowTie Diaphragm Spunding Valve!

A Spunding Valve allows you to maintain a set pressure. If pressure in the vessel exceeds the set point, it is expelled. It generally consists of an adjustable PRV valve, a tee, a gauge and a way to connect to your keg.


Limited Time Deal, Review Continues Below:

For a short time, MoreBeer is taking 15% off nearly everything, site wide when you use coupon code FLASH15.  There are a few exceptions.  Shipping is also free to most US addresses with a qualifying $59 order.  15% Off at MoreBeer!  – remember promo code FLASH15.

DuoTight Push In Fittings & EVABarrier Double Wall Draft Tubing at MoreBeer!


Why a Spunding Valve?

There are loads of homebrew related applications for a Spunding valve ranging from pressurized ferementation to naturally carbonating to fixing over carbonated beers and lots more.  Check out our resource post on the subject.  It’s arguably the go-to resource on the Internet on the subject

Hands on Review Kegland BlowTie Spunding Valve

The BlowTie Spunding Valve assembly consists of the BlowTie, a DuoTight Tee Fitting, a DuoTight to flare fitting, a DuoTight pressure gauge and two small pieces of EVABarrier Tubing.

Here’s a look at each component…


Get the Gear, Review Continues Below:


The BlowTie is the heart of this build.  It has DuoTight Push to Connect connections on both side as well as an adjustment knob to set pressure. Continue reading

2 X Brass 1/4″ Tees AND 2 X Barbs – $9.97 + free prime ship & “Cheapest” Spunding Build Option

WYNNsky Metals Brass Pipe Fitting Barstock Tee 2 PCS 1/4" x 1/4" x 1/4" NPT Female Pipe 2 PCS 1/4" NPT X 1/4" Hose ID Brass Hose Barb Fittings

WYNNsky Metals Brass Pipe Fitting Barstock Tee 2 PCS 1/4″ x 1/4″ x 1/4″ NPT Female Pipe 2 PCS 1/4″ NPT X 1/4″ Hose ID Brass Hose Barb Fittings

More Info

From the product description, check product page for current description, price and availability:

  • Adapts 1/4″ NPT Female end to 1/4″ tube size female end to 1/4″ tube size female end at a 90-degree angle
  • 2 PCS 1/4″ x 1/4″ x 1/4″ NPT Female Pipe Fittings, 2 PCS 1/4″ NPT Male X 1/4″ Hose ID Brass Hose Barb Fittings
  • Tee with three openings for connecting and branching three pipes
  • Use to connect hoses and equipment or wherever a threaded barbed fitting is required
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability

 

Of course you could use these fittings in lots of different applications.  One possible application is a Spunding Valve build.  A Spunding Valve [See: Spunding Valve Resource Post] allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more.  A similar (different manufacturer and possibly specs) fitting and barb are featured in our “Cheapest” Spunding Valve Build Option

6/4/19 6 AM Central: This combo is selling for just $9.97. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

WYNNsky Metals Brass Pipe Fitting Barstock Tee 2 PCS 1/4″ x 1/4″ x 1/4″ NPT Female Pipe 2 PCS 1/4″ NPT X 1/4″ Hose ID Brass Hose Barb Fittings


Also Consider:

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

More: Recent Amazon Finds


Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.

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Kegland BlowTie Spunding Valve – $11.04! + Hands on Review

As of this posting William’s Brewing is discounting their entire lineup of EVABarrier Tubing and DuoTight Fittings by 15%.  No coupon code is needed.  Discount will be reflected when you add items to cart.  Check William’s Brewing for current availability.

Kegland DuoTight Fittings and Accessories!

This sale brings the BlowTie valve down to just $11.04.  Check out my extensive hands on review of this great gadget.

Update: This promo has expired or pricing, availability or description has changed – Check the supplier’s site or product page for current availability

Recent Deals!  Last Fifty Finds

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

Visit William’s Brewing – Web Only Clearance Sale

More: Recent William’s Brewing Finds

15% Off Kegland DuoTight Tubing System & EVABarrier Tubing!

As of this posting William’s Brewing is discounting their entire lineup of EVABarrier Tubing and DuoTight Fittings by 15%.  No coupon code is needed.  Discount will be reflected when you add items to cart.  Check William’s Brewing for current availability.

Kegland DuoTight Fittings and Accessories!

Update: This promo has expired or pricing, availability or description has changed – Check the supplier’s site or product page for current availability

Recent Deals!  Last Fifty Finds

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

Visit William’s Brewing – Web Only Clearance Sale

More: Recent William’s Brewing Finds

15% Off Kegland DuoTight Tubing System & EVABarrier Tubing!

As of this posting William’s Brewing is discounting their entire lineup of EVABarrier Tubing and DuoTight Fittings by 15%.  No coupon code is needed.  Discount will be reflected when you add items to cart.  Check William’s Brewing for current availability.

Kegland DuoTight Fittings and Accessories!

Update: This promo has expired or pricing, availability or description has changed – Check the supplier’s site or product page for current availability

Recent Deals!  Last Fifty Finds

Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

Visit William’s Brewing – Web Only Clearance Sale

More: Recent William’s Brewing Finds

PIC Gauge Pressure Gauge 1/4″ NPT – $2.99 + free add on ship & Spunding Valve Build

PIC Gauge 101D-204CD 2" Dial, 30/0/60 psi Range, 1/4" Male NPT Connection Size, Bottom Mount Dry Pressure Gauge with a Black Steel Case, Brass Internals, Chrome Bezel, and Plastic LensPIC Gauge 101D-204CD 2″ Dial, 30/0/60 psi Range, 1/4″ Male NPT Connection Size, Bottom Mount Dry Pressure Gauge with a Black Steel Case, Brass Internals, Chrome Bezel, and Plastic Lens

More Info

From the product description, check product page for current description, price and availability:

  • Black Steel Case With Chrome Bezel
  • Brass Socket And Movement
  • Phosphor Bronze Bourdon Tube
  • Dry Non-Fillable
  • 3-2-3% Accuracy

 

I use a similar gauge (different manufacturer, model & specifications) in my Spunding Valve Build.   A Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more.  See: Build a Spunding Valve for more info.

5/31/19 10 AM Central: This is selling for just $2.99. Shipping is also free to many US addresses, with a qualifying order, as part of the Amazon’s Add On promotion. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page

PIC Gauge 101D-204CD 2″ Dial, 30/0/60 psi Range, 1/4″ Male NPT Connection Size, Bottom Mount Dry Pressure Gauge with a Black Steel Case, Brass Internals, Chrome Bezel, and Plastic Lens


Free Homebrew Audio Books: Free 30 Day Trial of Audible + TWO FREE Titles – lots of homebrew & beer titles available

More: Recent Amazon Finds

Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.