Automatic Control Valves
A500 Pressure Relief / Sustaining Valve
Maintains minimum upstream pressure under varying demand.
Product Description
The A500 operates as a pressure sustaining valve, holding a minimum upstream pressure to ensure adequate supply pressure is maintained at all times. It can equally function as a pressure relief valve, opening to discharge excess pressure when upstream pressure exceeds a set limit. Commonly installed at pump stations, reservoir outlets and district meter areas.
Specifications
Size rangeDN50–DN600
PressurePN16 / PN25
MaterialDuctile iron body, EPDM diaphragm, stainless pilot
ConnectionFlanged PN16/PN25
Approvals & Certifications
WRASWater Regulations Advisory Scheme: UK approval for use in drinking water systemsISO 9001International quality management system certification
Standards
EN 1074-5
Typical Applications
- Pressure sustaining
- Pressure relief
- Pump station outlet
- Reservoir outlet

Request a Quote
Send us your size, pressure rating and quantity and we will respond with pricing and full technical documentation, typically within one working day.
Request a Quote or email info@afcvalves.euAt a glance
- Sizes
- DN50–DN600
- Pressure
- PN16 / PN25
- Connection
- Flanged PN16/PN25

