上海凯贡阀门有限公司

■ FEATURES Various applications for construction equipment， various types of plant equipments and freezing machine field.
1. Because this valve is a pilot direct operated type， it does not need auxiliary equipment such as an electric and a compressed air. Its capacity is larger than direct operating valve.

2. Pressure adjusting range is wide and pressure adjusting range is easy. (JRV-SF11: 0.35~8kgf/㎠{0.035 ~ 0.8MPa}. JRV-SF21: 0.35~16kgf/㎠{0.035~1.6MPa})

3. This valve has a built-in filter and the filter prevents mal-functions of valve due to the scale and impurities and shows an excellent performance
■ MATERIAL NOPART NAMEJRV-SF11JRV-SF211BodyCAST IRONCAST CARBON STEEL2Top CoverCAST IRONCAST CARBON STEEL3Main ValveSTAINLESS STEELSTAINLESS STEEL4Main Valve SeatSTAINLESS STEELSTAINLESS STEEL5PistonCAST BRONZECAST BRONZE or CAST IRON6CylinderCAST BRONZECAST ST.ST7Pilot ValveSTAINLESS STEELSTAINLESS STEEL8Pilot Valve SeatSTAINLESS STEELSTAINLESS STEEL9DiaphragmSTAINLESS STEELSTAINLESS STEEL10Adjust ScrewBRASSBRASS11Adjust SpringCARBON STEELCARBON STEEL12Spring CaseCAST IRONCAST IRON1.INLET PRESSURE2~10 kgf/㎠{0.2~1.0MPa}2~20 kgf/㎠{0.2~2.0MPa}2.OUTLET PRESSURE0.35~1.0， 1.0~8.0 kgf/㎠
{0.035~0.1，0.1~0.8MPa}1.0~16.0 kgf/㎠
{0.1~1.6MPa}3.MAX REDUCING RATIO10 : 110 : 14.WORKING TEMPMax 220 ℃Max 300 ℃5.WORKING FLUIDSS6.CONNECION10KFF Flanged20KRF FlangedFluid symbol
1. S : Steam
* NOTE
1. Please adjust the secondary pressure must be less than 80% of primary pressure
2. Minimum pressure differential across the disc.: 0.7kgf/㎠ {0.07MPa}
3. Leakage allowance: Less than 0.05% of rated flow
4. Hydrostatic test pressure: JRV-SF11: 15kgf/㎠{1.5MPa}，  JRV-SF21: 30kgf/㎠ {3.0MPa}■ Dimensions (Unit: mm) MODELPART15A20A25A32A40A50A65A80A100A125A150A200AJRV-SF11L165165170185200220250290340390420550H1757575858592110130155180195250H270270270275275283310350370500535615JRV-SF21L200200200225230250280310320350395560H1838383108108113123137140148181250H292292292307301325366445445459466620*ANSI flanges are available upon request.*Above product may change specification without any notice.