Valve for Water Treatment Industry

Water and wastewater plants depend on reliable Valve from raw-water intake through treatment, pumping and final distribution. Speciality Valve offers valve for water treatment plants, sewage treatment plants, effluent treatment plants, desalination facilities and municipal water networks. The valve series provides isolation, flow control, pump protection, pressure control and backflow prevention.

Valve Used in Water and Wastewater Treatment:

Common valve solutions include:

Butterfly Valve – Water Isolation and Throttling
Gate Valve – Isolation Valve for mains and pumping stations
Check Valve – Check Valve for Pump Discharge Flow
Pressure Reducing Valve – Downstream pressure regulation
Control Valve – Flow, pressure and level control
Air Release Valve – Release trapped pipeline air
Knife Gate Valve – Wastewater sludge and solids applications
Diaphragm Valve – Dosing line application for corrosive media
Ball Valve – Utility and dosing line isolation Valve
Strainers – Filter Protection for Pumps and other downstream applications

Where Is the Water Treatment Valve Installed?

Important process areas include:

Raw-water intake
Water treatment plants (WTP)
Sewage treatment plants (STP)
Effluent treatment plants (ETP)
Pumping stations
Filtration systems
Clarifiers
Chemical-dosing lines
Sludge handling
Reservoirs
Distribution mains
Reverse-osmosis desalination systems

Valve Selection for Water, Sludge and Brine:

Water chemistry changes dramatically between applications.

Potable and treated water: corrosion-resistant, compatible seating materials
Wastewater: designs able to tolerate suspended solids and debris
Sludge service: unobstructed or slurry-friendly flow paths
Seawater: materials resistant to chloride corrosion
RO desalination: suitable materials for seawater feed and concentrated brine
Chemical dosing: compatible body, lining, diaphragm and seal materials

Water Treatment Valve Materials:

Depending on service, materials may include:

Duplex Valve – Suitable for chloride-containing water and desalination duties
Super Duplex Valve – Preferred for aggressive seawater and high-chloride brine service
Aluminium Bronze Valve – Used extensively in seawater and marine-water applications
Bronze Valve – Suitable for selected water and utility services
Titanium Valve – Used for severe chloride and seawater conditions
Monel Valve – Suitable for selected seawater and corrosive water applications
F44 Valve – Used where strong resistance to chlorides and localized corrosion is required

For desalination and RO systems, material selection should consider seawater concentration, temperature, velocity and the chemistry of the treated stream.

Water Valve Standards and Testing:

Examples of requirements that can be considered include AWWA requirements, ASME B16.34, API 598, ISO 5208, or individual municipal/project requirements.

Testing can cover:

Hydrostatic shell pressure
Seat leakage
Functional operation
Coating inspection
Dimensional checks
Actuator performance

Speciality Valve provides water treatment Valve for intake, pumping, filtration, wastewater, sludge, desalination, and distribution systems. Materials used, size of valve, automation, pressure testing, and documentation can be matched to new water treatment plants and water network upgrades.