Surge Relief Valves

Benefits

- Quick response
The high-capacity proportional hydraulic design allows fast response to surge pressure. This results in prompt return to stable pressure conditions.

- Low-maintenance
Due to the absence of any external gas supply such as gas bottle, maintenance is reduced to the bare minimum, making the valve ideal for remote or inaccessible locations.

- High-performance
Surge valve designs are based on simplicity. All components are field-proven to provide maximum protection reliability. They operate solely on fluid static pressure.

- Stable operation
The design of the hydraulic incorporates snap-acting opening when the set pressure is reached and automatic switching to control in the event of continuing high-pressure conditions.

Surge Relief Valves are consists of a main valve assembly and Hydraulic Actuator, Accessory, completely assembled and tested as a unit and ready for field installation. The valves are open when system pressure exceeds its pressure setting and throttle as necessary to limit system pressure to a pre-set maximum pressure. When pressure subsides below the pre-set maximum the valves are close tight.   SIZE 2" 3" 4" 6" 8" 10" 12" 16" 20" 24" Other Size N.D 50 80 100 150 200 250 300 400 500 600 Available on request A 275 300 375 500 635 744 850 1035 1178 1250 H 800 800 900 1000 1200 1400 1600 1900 2200 2500 Note: Standard flange connection is JIS 5K and others are available on request.     1 BODY ASTM A216 Gr. WCB 2 BONET(COVER) ASTM A216 Gr. WCB 3 HYDRAULIC ACTUATOR STEEL 5 CYLINER FLANGE PLATE S.S. TYPE 316 6 COUPLING JOINT STEEL COMM'L 7 DISK S.S TYPE 316 8 DISK RETAINER S.S TYPE 316 9 STEM SEAL BUNA-N 11 SEAT RING S.S TYPE 316 12 SPRING STEEL 13 POISITION INDICATOR STEEL COMM'L 14 RESILIENT DISK EPDM 15 STEM S.S TYPE 316 17 SPRING GUIDE STEEL COMM'L