Tri Clamp Fittings
Tri clamp fittings (tri clover if you prefer), are what serious stainless steel brewing setups are built around. They’re the connection standard you’ll find on quality fermenters, unitanks, valves and transfer lines from brands like Brewtools and BrewBuilt.
With sanitary tri clamp fittings, any two fittings of the same size connect with a gasket and a clamp, come apart without tools, and clean down properly every time. Once you’ve built a setup around them, going back to threaded or barbed connections feels like a step backwards.
At The Malt Miller we stock the tri clamp parts most useful for homebrew and small brewery builds: clamps, gaskets, elbows, tee pieces, butterfly valves, sample valves and bulkhead adapters. Predominantly in the 1.5″ tri clover standard that suits most homebrew fermenters, with 2″ and larger sizes where the equipment calls for it. All fittings are 304 grade food grade stainless steel as standard.
For the wider setup, take a look at our stainless steel valves and fittings and full range of brewing equipment.
Showing 1–20 of 56 results
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1.5″ Tri-Clamp Butterfly Valve – 304 Stainless Steel
£40.00Ideal for cold side as these are far more sanitary than threaded valves
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1.5″ TC Equal Cross Piece (Tri‑Clamp Stainless Steel)
£19.50Reduces clutter and simplifies setup by unifying three separate fittings into one cross‑piece.
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Kit for Fermenting Under Pressure for Brewbuilt X3’s
£255.001.5" Tri Clamp complete kit for fermenting safely under pressure.
Awaiting Stock -
1.5″ TC Straight Pressure Gauge (0-2Bar (0-30psi)
£45.00Ideal for BrewBuilt and Brewtools unitanks
Awaiting Stock -
1.5″ TC Vertical Spunding Valve with Pressure Gauge
£120.00Ideal for the BrewBuilt X3 range
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1.5 Inch Tri Clamp x Sanitary Shank Sample Port
£20.00Add a dispense tap directly to your Unitank , Fermenter or Bright tank
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Brewtools – TC 1.5″ Dip Tube for Brite Tank
£32.00Allows more liquid to be drawn out from the sample valve.
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Brewtools – 34mm TC Stainless Sample Valve and Pigtail Coil
£190.00Easily take samples without excess foam
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1.5″ Tri Clamp Sample Valve with Pig Tail Coil
£99.00Easily take samples from Unitanks / Fermenters
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Sample Valve Pigtail Coil – Take Carbonated Samples from Unitanks
£50.00Easily take samples from Unitanks / Fermenters. Combine with sample valve for full setup
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Tri Clamp Sample Valve 1.5″ – 304 Grade Stainless Steel
£60.00Easily take samples from Unitanks / Fermenters. Combine with Pigtail for full setup
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2 Inch to 1.5 Inch TC Concentric Reducing Cone
£18.00Ideal for the use of a Hop Bong - the concentric design allows hop pellets to drop through, ideal on the BrewBuilt X3's
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Tri-Clamp 90 Degree Elbow – 1.5″
£18.00 Awaiting Stock -
Tri-Clamp 90 Degree Elbow – 2″
£18.002 Inch TC 90 Degree Elbow – stainless steel Tri-Clamp fitting for hygienic 90° flow direction in home brewing and...
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1.5″ Tri Clamp Extension Tube 50mm
£16.00Full bore. Ideal where any extension tube is required such as the outlet from brewing vessels.
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1.5 Inch Tri Clamp – Pressure and Vacuum Relief Valve (1.5BAR-22psi)
£58.991.5" Tri Clamp Professional grade anti vac - PRV. Protect your pressure rated fermenter
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Brewtools – Ball Lock Adapter, Gas, TC 1.5″ (7712781)
£28.80Brewtools - Ball-Lock adapter (Gas) to TC 1.5". The adapter is made for CMB or other gas-fittings. M16x1.5mm inside threads for accessories. The Gas model is identified with a groove near the TC connector.
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Brewtools – TC Blind Cap, 3″ (7712677)
£13.00Brewtools - TC Blind Cap, 3" For use with
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Brewtools – Camlock Type A 32A to TC 1.5″ (7712803)
£25.20Which Tri Clamp Parts Do You Need?
Start With Size
Size is what determines compatibility across the whole system — any two tri clamp fittings of the same ferrule size will connect using a matching gasket and clamp, whether that’s valves, elbows, tee pieces or bulkhead adapters.
For most homebrew stainless builds, that size is 1.5″, which is the standard across Brewtools, BrewBuilt and most fermenter ranges. The 1.5″ clamp and 1.5″ gasket are where almost every build starts – worth keeping a few spares of each once the setup is in regular use.
Choosing the Right Gasket
Silicone is the right choice for most brewing applications; it has good temperature tolerance, good chemical resistance, and is straightforward to replace when needed. EPDM is worth considering if stronger caustic or acid-based cleaners are a regular part of your clean-in-place routine, as it holds up better in those conditions over time.
Valves and Flow Control
For flow control at a tri clamp connection, the 1.5″ butterfly valve in 304 stainless is the most widely used option across homebrew stainless setups. Unlike ball valves, butterfly valves have no internal cavities where liquid can sit between uses, making them a more sanitary clamp coupling for brewery use and easier to clean down properly. The 2″ butterfly valve covers larger port connections where the vessel or transfer line requires it – the same design, just scaled up.
Routing and Adapters
The 1.5″ 90 degree elbow redirects flow without creating dead legs where residual liquid can collect between uses. Tee pieces handle splitting or combining flow at a single connection point, which keeps the number of separate pipe connectors and hose adapters in a more complex build to a minimum.
For vessels that don’t already have a tri clamp port, the compression bulkhead fitting adds a weld-free 1.5″ TC flange to almost any vessel without permanent modification, which makes it a practical option for adapting kettles or fermenter lids for pressurised transfers.
Sampling
The 1.5″ TC sample valve is one of those fittings that quietly earns its place once it’s part of the setup. It gives you a clean way to pull a gravity or pressurised sample directly from a fermenter or unitank without introducing oxygen or disturbing the ferment – far less hassle than pulling a lid or opening a valve further down the line.
FAQs: Stainless Tri Clamp Fittings for Brewing
What is a tri clamp connection and what is it used for in brewing?
A tri clamp connection is a quick-release sanitary fitting used to join two components in a brewing system wherever hygienic coupling and easy disassembly matter – fermenters, unitanks, pumps, valves and transfer lines being the most common.
Two flanged ferrule ends are brought together around a food grade gasket and secured with a clamp, creating a leak-free, crevice-free seal that can be broken down and cleaned without tools. It’s the connection standard across most premium stainless steel homebrew equipment in the UK, and the reason serious brewers choose it over threaded or barbed alternatives is clear to see once you’ve used them: they’re faster to assemble, easier to clean, and fully compatible across brands as long as the ferrule size matches.
What size tri clamp fittings do I need for my fermenter?
For most homebrew stainless steel fermenters (including Brewtools, BrewBuilt and most other conical and unitank ranges), 1.5″ is the standard tri clamp size across ports, valves and accessories. The 1.5″ clamp and 1.5″ gasket are the starting point for almost any homebrew tri clamp build.
Worth noting if you’re running Brewtools equipment: Brewtools use a non-standard 34mm TC size in some areas of their systems, which isn’t interchangeable with standard 1.5″ fittings. The Malt Miller stocks clamps and accessories in this size specifically for Brewtools setups, so if you’re working with a Brewtools fermenter or vessel it’s worth double-checking which port size you’re dealing with before ordering. Some larger vessels and heating element bulkheads also use 2″ or 2.5″ fittings – the simplest way to confirm is to measure the ferrule OD, with standard 1.5″ coming in at around 50.5mm.
Can I use tri clamp parts for clean-in-place (CIP) brewing systems?
Yes, and it’s one of the main reasons brewers choose tri clamp over other connection types in the first place. The smooth internal bore and crevice-free surfaces mean cleaning solution flows through properly rather than sitting in dead spots, and the quick-release clamp makes full disassembly straightforward when a deeper clean is needed.
Butterfly valves are particularly good for CIP setups for this reason – unlike ball valves, which have internal cavities where residue can hide between uses, the 1.5″ butterfly valve has nowhere for anything to sit.Where can I buy stainless steel tri clamp fittings online in the UK?
You can buy stainless tri clamp fittings at The Malt Miller, with clamps, food grade gaskets, elbows, tee pieces, butterfly valves, sample valves and bulkhead adapters all stocked in the sizes most useful for homebrew and small brewery builds. The range is predominantly 1.5″ tri clover standard with larger sizes where the equipment calls for it, and everything is 304 grade stainless steel throughout. Alongside the tri clamp parts you’ll find the wider stainless steel valves and fittings for any other brewery piping components you need.
