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Stainless Steel Union Spunding Valve with Manometer Beer Brewing Fermenting Equipment Union Type Home Brew

SS304 Sanitary Union Spunding Valve with Manometer (0.2-2.2 Bar, DIN/SMS)

Achieve precise pressure regulation and carbonation control in your commercial fermenters with the Aomite Sanitary Union Spunding Valve.

Also known as a bunging device, this highly engineered SS304 stainless steel valve allows brewers to accurately set and maintain tank pressure while safely bleeding off excess CO2 during active fermentation. Unlike standard clamped versions, this specific model features a robust threaded Union connection (compatible with DIN/SMS standards), ensuring a vibration-resistant, highly secure fit to your tank's piping. Operators can easily micro-adjust the release pressure between 0.2 and 2.2 Bar by turning the top-mounted spherical adjustment knob. The unit comes fully assembled with a clear visual water seal cup and a sanitary diaphragm manometer for real-time pressure monitoring.

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Model:
08
Brand:
AOMITE

Product Description

Technical Specifications

Parameter	Specification
Product Type	Sanitary Spunding Valve / Bunging Pressure Device
Material Grade	AISI 304 Stainless Steel (Body & Internals)
Connection Style	Threaded Union Nut (DIN or SMS Standard)
Adjustable Pressure Range	0.2 to 2.2 Bar (approx. 3 to 32 PSI)
Pressure Gauge	Integrated Sanitary Diaphragm Manometer
Adjustment Mechanism	Top-mounted spherical mechanical tension knob
Visual Indicator	Clear Polycarbonate/Acrylic water seal cup
Primary Application	Commercial Beer Fermenters, Brite Tanks (100L - 5000L capacity)

Should I choose a Union or Tri-Clamp Spunding Valve for my fermenter?

Union Connection (This Product)
A Union connection uses a heavy-duty threaded nut. It provides an exceptionally rigid and vibration-proof mount. It is the absolute standard in European brewery engineering (DIN 11851 or SMS). If your tank is built to European specs and has a threaded male ferrule on top, you must use a Union spunding valve.
Tri-Clamp Connection
Tri-Clamp is the standard in North America. It uses a hinged clamp over a flat flanged gasket. It is faster to remove by hand, but less rigid than a threaded union nut. We offer both connection types in our catalog depending on your tank's origin.

What is the purpose of the clear cup on the spunding valve?

Visual Confirmation: The clear cup is partially filled with water or sanitizer. When the tank pressure exceeds your set limit (e.g., 1.5 Bar), the excess CO2 vents through the valve and bubbles up through the liquid. This gives brewers an immediate visual cue that active fermentation and venting are occurring.
Sanitary Barrier: The liquid creates a one-way sanitary "water seal" (airlock). It allows CO2 to escape while completely preventing any ambient air, wild yeast, or fruit flies from traveling backward into the sterile fermenter.