Menu
0
0

Your Cart is Empty

Adjustable Spunding Valve / PRV for Unitank Fermenters

Adjustable Spunding Valve / PRV for Unitank Fermenters

Adjustable Spunding Valve / PRV for Unitank Fermenters

Precise Pressure Control for Fermentation & Carbonation

Upgrade your Unitank fermenter with our premium adjustable spunding valve, designed for precise pressure control and built-in safety. This compact, all-stainless steel valve allows you to maintain pressure during fermentation and naturally carbonate your beer — all while protecting your tank with an integrated pressure relief valve. Built for professional-level performance and effortless operation, it’s the perfect solution for both advanced homebrewers and small craft breweries.

Made entirely from 304 stainless steel — no internal plastic parts.
Adjustable from 0–15 psi using a knurled knob for quick, accurate tuning.
Maintains steady fermentation pressure and enables natural carbonation.
Integrated PRV automatically vents excess pressure to ensure safety.
Fits all standard 1.5″ tri-clamp PRV ports.
Tool-free design — no disassembly required for use or cleaning.
Compact and easy to sanitize between batches.

Why Use an Adjustable Spunding Valve?

Fermenting under pressure reduces esters and unwanted flavors during warm fermentations. It accelerates lagering and allows you to carbonate your beer naturally — without the need for forced CO₂. This valve gives you full control over your fermentation environment, while the built-in PRV keeps your tank safe at all times.

See full setup instructions under the Technical Details tab.

$215.00 USD
Description
Technical Details

Adjustable Spunding Valve / PRV

Overview

This adjustable spunding valve controls internal pressure during fermentation and carbonation. Designed to fit any 1.5" tri-clamp PRV port, it features a built-in pressure relief mechanism and tool-free adjustment via the knurled top dial.

🔧 Installation

  1. Sanitize the spunding valve and all tri-clamp hardware.
  2. Attach the valve to your fermenter’s 1.5" tri-clamp PRV port using a gasket and tri-clamp (not included).
  3. Ensure the adjustment knob is turned fully counterclockwise (minimum pressure) before beginning fermentation.

⚙️ Pressure Adjustment

  • Turn the knob clockwise to increase pressure setpoint.
  • Turn it counterclockwise to decrease pressure setpoint.

The valve will automatically begin to vent once your fermenter’s internal pressure exceeds the setpoint.

Recommended starting point: 5 psi, then fine-tune based on your fermentation goals.

💡 Usage Tips

  • Use a pressure gauge on your fermenter to monitor internal pressure.
  • Always confirm the vent path is clear and unobstructed.
  • Ensure your fermenter is rated for pressure (up to 15 psi).

🧼 Cleaning & Maintenance

  • Remove the valve and rinse with hot water immediately after use.
  • Clean with brewery-safe cleaner (like PBW), rinse, and dry thoroughly.
  • No internal disassembly is required for standard cleaning.
  • Do not use abrasive pads or harsh chemicals.

⚠️ Safety Notes

  • This unit includes a built-in pressure relief valve, but you should always monitor your system.
  • Never exceed 15 psi — check that your fermenter is pressure-rated.
  • Do not attempt to modify or disassemble the valve.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
FOUNDER STORY

Hi, I’m Steven, founder and CEO of Bräu Supply.

Like many of you, I started brewing because I was obsessed with crafting beer that wasn’t just good—but exceptional. What I quickly realized was that most homebrewing systems were either too clunky, too limiting, or simply couldn’t deliver the kind of precision I was after. So, I set out to solve that.

My mission was simple - Build the most advanced, fully customizable brewing system for serious homebrewers.
Something reliable, compact, built to last for decades—and most importantly, capable of producing ridiculously delicious, consistent, high-quality beer every single time.

That mission led to years of prototyping, testing dozens of materials and configurations, and working with a growing community of brewers. The result? Unibräu—our flagship all-in-one brewing system.

Launched from our 2017 Kickstarter campaign, Unibräu became the world’s first countertop electric brewing system, designed for both beginners and seasoned brewers. Whether you're brewing from your kitchen, garage, basement, or backyard, it fits seamlessly into your life while delivering commercial-grade results.

With Unibräu, everything just clicks—from heating to chilling, every step is streamlined into an intuitive six-step process. You’re in full control, from grain to glass.

In 2023, The Spruce voted Unibräu the Best Electric Homebrewing System, and honestly, I couldn’t agree more.

Whether you're just getting started or you're already deep into your brewing journey, I promise you this:
Once you brew with Unibräu, there’s no going back.

It’s not just a brewing system. It’s the ultimate brewing experience—start to finish.

You may also like