India’s First Data Center Liquid Cooling Valve Manufacturer | 5 Projects Completed | 5-Year Warranty
STILONN Valves & Controls Pvt. Ltd. is India’s first manufacturer of data center liquid cooling valves. We design and manufacture stainless steel liquid cooling valves for the Secondary Fluid Network (SFN) in data centers — including butterfly valves, ball valves, balancing valves, air vent valves, and check valves for CDU (Coolant Distribution Unit) loops, liquid cooling manifolds, and direct-to-chip cooling systems.
With five data center liquid cooling projects successfully completed in India, STILONN is the proven local alternative to imported liquid cooling valves — offering shorter lead times, lower cost, and a 5-year warranty on every SFN valve.
What Is the Secondary Fluid Network (SFN) in Data Center Liquid Cooling?
In data center liquid cooling, the Secondary Fluid Network (SFN) is the coolant loop that connects the CDU (Coolant Distribution Unit) to the IT racks and cold plates. The SFN circulates PG25 coolant — a mixture of 25% propylene glycol and deionized water — through direct-to-chip liquid cooling systems that remove heat from high-density AI and HPC servers.
The SFN is the most critical loop in any data center liquid cooling system. Valves in the Secondary Fluid Network must be absolutely leak-tight, corrosion-resistant, and fully compatible with PG25 glycol coolant — because they operate directly beside live IT equipment.
Stainless Steel SFN Valves — Engineered for Data Center Liquid Cooling
STILONN manufactures a complete range of stainless steel SFN valves for data center liquid cooling:
- Butterfly valves for liquid cooling — compact, low pressure drop, ideal for CDU and manifold isolation
- Balancing valves for precise flow balancing across liquid cooling loops and rack manifolds
- Ball valves for SFN isolation and maintenance points
- Air vent valves for automatic air release in liquid cooling piping
- Dual plate check valves (NRV) to protect pumps and CDUs in the Secondary Fluid Network
Every STILONN liquid cooling valve is built with SS316L stainless steel wetted parts and our specially developed EPDM gaskets, formulated and tested for long-term compatibility with PG25 glycol-water coolant. Our special EPDM seals resist swelling, hardening, and degradation over years of continuous coolant circulation — a key requirement for SFN valve reliability in data centers.
5 Data Center Liquid Cooling Projects Completed in India
STILONN has successfully completed five data center liquid cooling projects. This hands-on project experience taught us exactly what liquid cooling infrastructure needs:
- Precise flow balancing across CDUs, liquid cooling manifolds, and cooling loops
- Leak-tight, hygienic-grade valve construction — zero tolerance for drips near IT equipment
- Compact stainless steel valve designs that fit dense rack environments
- Seals and materials proven with PG25, glycol-water, and treated deionized water coolants
- Fast delivery and local Indian support that imported liquid cooling valves cannot match
After every project, we re-engineer our liquid cooling valve designs to reduce cost and improve efficiency — optimised valve geometry for lower pressure drop, design standardisation across the SFN valve range, and value engineering on flanges and fittings. The result: data center liquid cooling valves that are more efficient, more affordable, and delivered faster — made in India.
5-Year Warranty on SFN Valves — A First in India
STILONN provides a 5-year warranty on every SFN valve for data center liquid cooling — the first liquid cooling valve warranty of its kind in the Indian market. It is our statement of confidence in our stainless steel construction, special EPDM gasket technology, and 25+ years of hygienic valve manufacturing experience serving pharma, biotech, and food & beverage industries.
Why Choose STILONN as Your Liquid Cooling Valve Manufacturer in India?
- India’s first data center liquid cooling valve manufacturer
- 5 liquid cooling projects successfully completed
- 5-year warranty on all SFN valves
- Special EPDM gaskets proven with PG25 coolant
- SS316L stainless steel hygienic-grade construction
- Made in India — shorter lead times, lower landed cost than imported valves
Planning a data center liquid cooling deployment in India?
Contact STILONN for SFN valves, CDU valves, liquid cooling balancing valves, and complete valve packages for direct-to-chip liquid cooling systems.
STILONN Valves & Controls Pvt. Ltd.
India’s First Data Center Liquid Cooling Valve Manufacturer | Navi Mumbai | Chiplun, Ratnagiri
