Neumo UK supplies pressure-rated stainless steel butterfly valves for coolant distribution in data centres — isolation, sectioning and balancing duty across TCS and FWS loops, with seat materials compatible with treated water and propylene-glycol coolants such as PG25. Manufactured by our parent company AWH; manual and actuated options from UK stock.
Every serviceable section of a liquid cooling system needs reliable isolation: either side of CDUs, at loop branches, at rack rows, and around pumps and heat exchangers. In a live AI hall, a valve that seals first time is the difference between a routine intervention and a thermal event.
Range at a glance
- Type: wafer-pattern stainless steel butterfly valves, hygienic and industrial patterns
- Sizes: matched to our tube range up to 8″ / DN200
- Pressure rating: rated for the working pressures of DTC facility and technology loops — confirm your design pressure and we’ll match the specification
- Seats/seals: EPDM as standard; FKM and alternatives for specific coolant chemistries — all food/pharma-pedigree elastomers with documented compatibility
- Actuation: bare-shaft, lever, pneumatic actuator, with position feedback options for BMS integration
- Manufacturer: AWH (Armaturenwerk Hötensleben GmbH) — Neumo UK is 100% AWH-owned, so you’re buying from the manufacturer’s own stockholder
Why it matters for coolant loops
Glycol-based coolants carry inhibitor packages that some elastomers degrade; seat material selection is a real engineering decision, not a catalogue afterthought. Our valves come from decades of hygienic service where seal integrity and clean internals are non-negotiable — the same qualities a 20-year coolant loop demands. See also our PG25 coolant compatibility guide.
Frequently asked questions
Are the valves suitable for PG25?
Yes — EPDM seats are the standard pairing for propylene-glycol mixes; we’ll confirm compatibility against your specific coolant and inhibitor package.
Can valves be supplied actuated and wired for BMS?
Yes, pneumatic actuation with feedback units is a stock configuration.
Do you supply other valve types?
The AWH/RIEGER range includes ball, diverter, sampling and relief valves where a scheme needs them.
Talk to us about your project
Kevin Windsor — Product Manager, Data Centre Liquid Cooling
kw@neumo.co.uk · 01952 583 999