Water & Wastewater
Water infrastructure is built once and expected to run for generations. Our gate, butterfly and check valves for water duty prioritise long service life, low headloss and easy maintenance across treatment plants, pump stations and distribution networks.
WATER TREATMENT — SITE PHOTO
The challenges
- Long-term corrosion resistance
- Low headloss requirements at large diameters
- Slam and surge on pump stop
- Minimal-maintenance expectations
How Valvax answers
- Double-offset butterfly valves for low-loss isolation
- Cast gate valves to API 600 for trunk mains
- Dual-plate and swing check valves against reverse flow
- Stainless trim options for seawater and brine
Typical applications
Specified For This Duty
Recommended valves for water & wastewater
Double Offset Butterfly Valve – Class 150 / 300 / 600
API 609 double-offset (double-eccentric) butterfly valve in wafer, lug, and flanged-end configurations. Stellite-6 body seat and EPDM/PTFE disc seat for bubble-tight shutoff in industrial service.
View detailsCast Gate Valve OS&Y – Class 150 / 300 (API 600)
API 600 bolted-bonnet cast gate valve with rising stem and outside screw & yoke. Integral seat ring and stellited wedge for zero-leak isolation in oil, gas, and steam service.
View detailsCast Swing Check Valve – Class 150 / 300 / 600 / 900
BS 1868 full-bore swing check valve with hinged disc and integral seat ring. Seal welded seat with Stellited 6 disc overlay for long-term bubble-tight closure.
View detailsDual Plate Check Valve – Wafer / Lug / Double Flange
Retainer-less, metal-seated dual plate check valve per API 594. Compact wafer, lug, and double-flange designs with INCONEL X-750 spring for minimal water hammer in high-velocity service.
View detailsNext Step
Ready to specify?
Our water & wastewater specialists respond to enquiries with a compliant selection and firm pricing, typically within one working day.