Infrastructure
Robust isolation and control valves for buildings, HVAC plant, district energy and civil pipelines, chosen for long service life, easy maintenance and dependable shut-off.
The valves behind a building or civil network rarely get noticed until one has to be isolated for maintenance while the rest of the system keeps running. In HVAC plant rooms, district energy networks and large building services, the priority is dependable isolation, low installed cost on big diameters and decades of trouble-free service.
Purple Valves supplies the butterfly, ball and gate valves that isolate chillers, boilers, pumps and risers, plus the control valves that balance chilled, heating and condenser water across commercial and institutional projects.
Common Challenges in Infrastructure
Maintenance without shutdown
Large buildings cannot go offline. Valves must allow individual chillers, pumps and zones to be isolated for service while the rest of the network keeps operating, so reliable shut-off is essential.
Space and weight on large diameters
Plant rooms are tight and mains are large. Compact, lightweight valves reduce installation cost, support loads and the labour needed on big bore pipework.
Long service life and low maintenance
Building services valves are expected to last the life of the plant. Corrosion-resistant materials and durable seats keep them sealing reliably with minimal intervention over many years.
Recommended Valve Types
Wafer & Lugged Butterfly Valves
The default isolation and balancing valve for HVAC: compact, light and economical on large chilled, heating and condenser water mains, with simple lever or gear operation.
View 25 products
Isolation Ball Valves
Tight shut-off for smaller branch, riser and equipment connections where bubble-tight isolation and quick operation are required.
View 143 products
Resilient-Seated Gate Valves
Full-bore isolation on water mains and risers where minimal pressure drop and non-rising stems suit buried and confined installations.
View 12 productsApplications, Materials & Standards
Key Applications
- Chiller, boiler and cooling tower isolation
- Chilled, heating and condenser water mains
- Pump and equipment isolation for maintenance
- Riser and zone isolation in high-rise buildings
- District energy and campus distribution networks
- Domestic and process water isolation
Typical Materials
- Ductile iron bodies with epoxy coating for water service
- EPDM liners and seats for chilled and heating water
- Stainless and bronze trim for corrosion resistance
- Aluminium-bronze discs for condenser and cooling water
Standards & Certifications
- AWWA C504 / C516 butterfly valve design
- ASME B16.34 pressure-temperature ratings
- EN / ISO face-to-face dimensions
- WaterMark certification for potable water service
Specifying valves for infrastructure?
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