SAPAG® Pressure Relief Valve

The SAPAG® Pressure relief valve is an effective way of protecting pipelines (water distribution and treatment networks) against overpressures.


The SAPAG® Pressure Relief Valve owes its qualities to its original simplicity, the result of long theoretical studies and tests. Pressure relief valve is an effective way of protecting a pipeline against overpressures.

Overpressure protection for water distribution and treatment networks.

Technical data
Valve size (DN) : 50 – 80 – 125 – 200
Working pressure (bar) : 77 max (acc.DN)
Températures (°C): Ambiantes
Unidirectional design

Flange connections
Flange : PN 10/16/20/25/40/50
Others : on request

Total lack of guidance
Negligible inertia
Metal-to-metal seat
Reduced relief (variation in pressure during opening)
Small face to face

SAPAG® Pressure Relief Valve

Technical data

Product Sheet PRV SAPAG-VALVES-0036-ENG-2302


Data Sheet

Selecting the suitable valve 155715


Part list & Materials

PRV DN50 Part list 155685 -EN

PRV DN80 Part list 155688 -EN

PRV DN125 10-40 Part list 155696 -EN

PRV DN125-200 40-28 Part list 155702 -EN

PRV DN125-200 40-28S Part list 155705 -EN

PRV DN200 16-40 Part list 155699 -EN


PRV DN50 Dimensions 155686

PRV DN80 Dimensions 155689

PRV DN125 10-40 Dimensions 155697

PRV DN200 16-40 Dimensions 155700

PRV DN200 S DN125 S Dimensions 155706

PRV DN200-DN125-40-28 Dimensions 155703