Direct Acting Pressure Reducing Valve

African Valve, A  Direct Acting Pressure Reducing Valve Supplier in Egypt supplies for applications where inlet pressure needs to be reduced and maintained at a controlled downstream level. These self-operated valves respond directly to downstream pressure through a spring and diaphragm or piston mechanism, adjusting the valve opening as pressure changes. The arrangement provides straightforward pressure regulation without requiring a separate pilot-control system. 

Key Features

• Self-acting pressure control - Uses downstream pressure and spring force to regulate the valve opening.

• Adjustable set pressure - Spring compression can be adjusted to establish the required outlet pressure.

• Compact construction - Suitable where a simple pressure-reduction arrangement is preferred.

• Automatic response - Reacts to changes in downstream demand without an external actuator.

• Diaphragm or piston sensing - Sensing arrangement depends on the valve design.

• Low maintenance - Fewer control components than pilot-operated arrangements.

• Suitable for variable inlet pressure - Can maintain downstream pressure within its specified operating range.

Technical Specifications

Components & Materials 

• Body

• Bonnet / Cover

• Diaphragm / Bellows

• Plug / Disc / Piston

• Seat

• Stem / Push Rod

• Spring

• Seals / Gaskets

• Fasteners

Material options include ductile iron, cast iron, bronze, brass, carbon steel, stainless steel, SS304, SS316, SS410, EPDM, NBR, FKM, PTFE, graphite and application-specific alloys. Material combinations can be selected according to the fluid, pressure, temperature, corrosion conditions and project requirements. African Valve can provide customized material configurations based on the required service conditions.

Standards

For applicable water pressure-reducing valve designs, EN 1567 covers requirements for water pressure-reducing and combination pressure-reducing valves, including dimensions, materials, performance and testing. Its scope includes valves from DN 8 to DN 100, with inlet pressures up to 16 bar, for cold water up to 30°C and hot water up to 80°C.