HVAC & Building Valves
Industrial Valves for HVAC & Building
Reliable Flow Control for HVAC, Chilled Water & Building Utilities
Modern commercial and industrial buildings require reliable, energy-efficient valves across their HVAC, fire protection, and utilities infrastructure. From small-bore brass ball valves in fan coil units to large butterfly valves on chiller plant headers, Vajra supplies the complete range for building services applications.
Key HVAC Applications
We supply application-specific valve solutions for each segment of the hvac & building industry.
Chilled Water Systems
Butterfly valves on chiller and cooling tower circuits. Ball valves on fan coil unit branch lines. Y-strainers on chiller evaporator and condenser inlets. Two-way and three-way globe control valves for air handling units (AHU) and fan coil units (FCU).
Hot Water & Steam Heating
Globe valves and angle valves for steam and hot water heating coils. Pressure reducing valves (PRV) to step down from mains steam pressure to heating coil pressure. Steam traps and condensate return valves for energy-efficient steam systems.
Fire Protection Systems
UL/FM approved OS&Y gate valves and butterfly valves for fire protection systems. Tamper-indicated valves (with supervisory switch) for fire pump discharge and sprinkler zone isolation. Pressure relief valves for fire pump overflow.
Condenser Water & Cooling Tower
Cast iron and ductile iron butterfly valves for condenser water headers and cooling tower basin connections. Strainers for cooling tower water to protect chillers and heat exchangers from debris.
Recommended Valve Range for HVAC
Our most commonly supplied valve types for hvac & building applications.
| Valve Type | Specification |
|---|---|
| Brass Ball Valve (Fan Coil) | ½"–2", DZR brass, full bore, T-handle, Class 150 |
| Cast Iron Butterfly Valve | DN50–DN600, CI body, EPDM seat, Class 150 |
| Globe Control Valve (HVAC) | DN15–DN200, SS316 body, PTFE disc, Class 150 |
| Y-Strainer (AHU/Chiller) | DN15–DN200, CI/SS316 body, 0.8mm mesh, Class 150 |
| OS&Y Gate Valve (Fire Protection) | DN65–DN300, ductile iron, UL/FM listed, Class 300 |
| Safety Relief Valve (Steam) | ASME Section VIII, ½"–2", 1–17 bar set pressure |
Applicable Standards & Certifications
- ASHRAE — HVAC and Refrigeration Standards
- UL/FM — Fire Protection Valves
- EN 1074 — Valves for Water Supply
- ASME B16.34 — Pressure-Temperature Ratings
- BS EN 12516 — Industrial Valves
- ISO 9001:2015 — Quality Management
Available Materials of Construction
- DZR Brass (Dezincification-Resistant)
- Cast Iron EN-GJL-250
- Ductile Iron EN-GJS-450-10
- ASTM A351 CF8M (SS316 for chemical water)
- EPDM / BUNA-N (Elastomer Seats)
- PTFE (Stem Packing and Disc Facing)
Frequently Asked Questions — HVAC Valves
What size ball valves are used in HVAC fan coil units?+
Do you supply valves for fire protection systems?+
Need HVAC Valves? Get a Quote Today.
API 6D, ASME B16.34 certified. Full documentation. 24-hour quote response. Contact us at sales@vajravyuh.com or +91 9979774557
