BlowTie Complete Kit (Diaphragm Spunding Valve 0-15psi)

BlowTie Complete Kit (Diaphragm Spunding Valve 0-15psi)

The BlowTie Complete Kit gives you precise, stable pressure control for pressurised fermentation, pressure transfers, and closed‑loop brewing systems. Unlike traditional spring‑based spunding valves — which naturally suffer from wide opening/closing pressure swings — the BlowTie uses a diaphragm‑actuated mechanism for far more accurate, repeatable pressure regulation.

Whether you’re fermenting under pressure, transferring carbonated beer, or balancing head pressure during keg‑to‑keg moves, the BlowTie lets you dial in exact control from 0–15 psi. This means better carbonation retention, cleaner transfers, and more consistent results across every batch.

The included 0–15 psi pressure gauge, duotight fittings, and ball‑lock gas disconnect make this a complete, ready‑to‑use kit. Just connect your 8mm EVABarrier line, turn the yellow adjustment knob, and set your desired pressure. Clockwise increases pressure; anticlockwise lowers it.

Why the BlowTie is Better
Traditional spunding valves rely on a spring pushing against a seal — a design that inherently causes pressure drift.

The BlowTie solves this with a flexible diaphragm, giving you:

• More accurate pressure control
• Faster response to pressure changes
• Better stability during fermentation
• More consistent carbonation during transfers

This is the modern spunding solution brewers have been waiting for.

Kit Includes

• BlowTie Diaphragm Spunding Valve (0–15 psi)
• duotight 8mm × 8mm Double Tee Piece
• 8mm Push‑In Pressure Gauge (0–15 psi)
• duotight 8mm × Gas Ball Lock Disconnect (Grey + Red)
• 8mm Rigid Plastic Joiner

Everything you need for a complete, pressure‑controlled setup.

Specifications

• Pressure range: 0–15 psi
• 8mm (5/16") push‑fit ports
• Food‑grade acetal body
• Stainless steel screws
• Compatible with EVABarrier 8mm OD tubing

How to Use

• Pressurise a keg to a known value (e.g., 15 psi).
• Attach the BlowTie kit to the keg’s gas post.
• Turn the yellow knob to set your desired pressure (e.g., 10 psi).
• The diaphragm will maintain that pressure automatically.

Key Features

• Accurate diaphragm‑based spunding valve
• Ideal for pressure fermentation and closed transfers
• Complete kit with gauge, fittings, and disconnect
• duotight push‑fit system — no clamps required
• Easy pressure adjustment with yellow control knob
• Maintains carbonation during transfers