Water Pressure Reducing Valve

Kenya’s growing water demand and varied terrain make pressure management an important part of distribution-system design. African Valve, a Water Pressure Reducing Valve Supplier in Kenya, supplies pressure-reducing solutions for networks where excessive pressure needs to be controlled between supply zones, particularly in lower-lying areas. Kenya’s water-sector guidance specifically identifies PRVs as a means of reducing excessive pressure, pipe bursts and leakage.

Water Pressure Reducing Valve Features

Automatic pressure regulation - Maintains the required downstream pressure as system conditions change.
Pressure reduction - Controls excessive inlet pressure before water enters downstream networks.
Adjustable outlet pressure - Allows the downstream pressure to be set according to system requirements.
Pilot-controlled operation - Available for applications requiring more consistent hydraulic pressure control.
Flow-responsive performance - Responds to changes in downstream demand.
Cavitation management - Correct sizing and pressure-drop selection help minimise cavitation risk.
Serviceable construction - Internal components can be accessed for inspection and maintenance, depending on design.

Technical Specifications

Parameter	Specification
Product Type	Water Pressure Reducing Valve
Operating Principle	Direct-Acting / Pilot-Controlled, depending on design
Configuration	Globe / Angle, depending on design
End Connection	Flanged / Threaded, depending on design
Pressure Rating	PN10 / PN16 / PN25 / PN40 or ASME Class 150 / 300, depending on design
Control	Adjustable Downstream Pressure
Accessories	Pressure Gauge / Pilot Assembly / Isolation Components, as required

Materials & Components
Body Materials
ASTM A536 Ductile Iron / ASTM A216 WCB / ASTM A351 CF8M / Bronze
Internal & Component Materials
Disc / Plug: SS304 / SS316 / Bronze / Ductile Iron
Seat: SS304 / SS316 / EPDM / NBR / PTFE
Diaphragm: EPDM / NBR / FKM
Stem: Stainless Steel
Spring: Stainless Steel / Carbon Spring Steel
Seals & Gaskets: EPDM / NBR / PTFE
Pilot & Control Components: SS304 / SS316 / Brass / Bronze
African Valve’s pressure-reducing range covers water, steam, direct-acting, pilot-operated, AWWA and super-duplex configurations, allowing the valve selection to extend beyond standard water-service requirements where the project calls for a different pressure-control arrangement.
Applications in Kenya
Water pressure reducing valves are particularly relevant to municipal distribution networks in Nairobi and other urban areas, where elevation differences can create excessive pressure in lower zones. Kenya’s water-sector guidance recommends PRVs for high-pressure areas within separated distribution zones and highlights their role in reducing pipe bursts and leakage.
They are also applicable to irrigation and agricultural water networks, where pressure needs to be controlled before water reaches branch distribution lines and different elevation zones.
Standards
EN 1074-5 covers control valves used in water-supply systems. Depending on the selected construction and project specification, AWWA, ISO or other applicable standards may also be specified for design, materials and testing.

Water Pressure Reducing Valve

Technical Specifications

Key Features & Applications

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