Pressure Sustaining/check feature valves

1200R SCOPE OF SUPPLY & DESIGN STANDARDS
RANGE OF SIZES: DN50 – DN1000
PRESSURE RATINGS: PN10 AND PN16
TEMPERATURE RANGE: -20°C TO +70°C
DESIGN AND TYPE TO: EN1074-5
FACE-TO-FACE DIMENSIONS: ACC. TO ISO5752
FLANGE DIMENSIONS: EN1092-2 (DIN2501)
HYDROSTATIC TESTING: EN12266 AND ISO5208
TYPE TESTING TO: EN1074 (1&5)

1200R FIELDS OF APPLICATIONS
– Water pipelines and distribution networks
– Irrigation pipelines and networks
– Ground reservoirs and elevated tanks
– Pumping Stations
– Water hammer systems
– Water treatment plants

SERIES 1200R pressure relief valve is a normally closed valve that is manually
adjusted to open once upstream pressure reaches a preset value. When there is an
excess pressure in the line the valve opens to flow out the excess water maintaining
a constant pressure in the line and preventing the line from bursting. Once upstream
pressure falls below the set point the valve closes slowly to a drip tight position.