Which 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.
