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31 BUTTERFLY VALVE TYPE 57 40mm - 350mm(11/2inch - 14inch) FEATURES ■ Excellent Sealing Performance Sealing performance has been improved due to its specially designed seat "PAT pending". ■ Lowered Operating Torque Required operating torque has been reduced by applying specially designed seat. ■ Protection for Over Tightening of Mating Flange The valve body acts as a protector against over tightening to avoid breakage or deformation of the seat. (Please refer to sketch of below) ■ Spherical Design Disc Spherical design disc provides superior durability and improved Cv value. ■ Stem Retainer Stem retainer allows field automation or accessories preventing the stem from ■Plastic Gear Box being removed. Corrosion resistant plastic gear box provides a broader range of applications. ■ Wetted Part Lubricants Free (SPECIAL) Body Type57 Flange Body contacts flanges to protect the seat from deformation and to avoid increased operating torque. Stem Retainer Superior corrosion resistance allows applications such as severe chemicals and sea waters. NAMUR standard is applied on the gear box housing. Highly visible from a distance. Corrosion resistance gripping design allows easy operation. ●Plastic Gear Box Housing ●NAMUR Mounting Dimension ●Highly Visilble Position Indicator ●Plastic Hand Wheel ●Stainless Steel Trim and Hardware Note:Long stem type and chain drive type are available on special request. SPECIFICATIONS Body material Working Temperature ℃(°F) Max. Working Pressure MPa{kgf/cm2}[PSI] 40mm-250mm(11/2inch〜10inch) 300mm・350mm(12inch・14inch) Polyvinyl Chloride(PVC) 0 - 50 ( 30 - 120) 1.0{10.2}[150] 0.75{7.7}[110] Polypropylene(PP) −20 - 80 ( 20 - 175) 1.0{10.2}[150] 0.75{7.7}[110] Polyvinylidene Fluoride(PVDF) −20 - 120(20 - 250) 1.0{10.2}[150] 0.75{7.7}[110] WORKING PRESSURE VS. TEMPERATURE {10.2} 1.0 0.5 0.0 {5.1} {10.2} 1.0 0.5 0.0 {5.1} {10.2} 1.0 0.5 0.0 {5.1} 60 80 100 120 [150] [70] -40 -20 0 20 40 (30) (140) (175) (210) (250) 0 (-40) (-5) (70) (105) (30) Temperature℃(゜F) 60 80 100 120 [150] [70] -40 -20 20 40 (-40) (-5) (70) (105) (140) (175) (210) (250) Temperature℃(゜F) 60 80 100 120 [150] [70] -40 -20 0 20 40 (-40) (-5) (30) (70) (105) (140) (175) (210) (250) Temperature℃(゜F) PVC PVC PVDF PVDF PVDF PVDF PVDF PVDF PP PP PP PP PP PP Type57 40mm(11/2inch) - 150mm(6inch) Type57 200mm(8inch) - 250mm(10inch) Type57 300mm(12inch)-350mm(14inch) Max Working Pressure MPa{kgf/cm2}[PSI] Max Working Pressure MPa{kgf/cm2}[PSI] Max Working Pressure MPa{kgf/cm2}[PSI] PVC PVC PVC PVC -40 -20 0 20 40 60 80 100 120 (-40) (-5) (30) (70) (105) (140) (175) (210) (250) EPDM FKM NBR UR CSM FKM-F FKM-C -40 -20 0 20 40 60 80 100 120 (-40) (-5) (30) (70) (105) (140) (175) (210) (250) EPDM FKM NBR UR CSM FKM-F FKM-C -40 -20 0 20 40 60 80 100 120 (-40) (-5) (30) (70) (105) (140) (175) (210) (250) EPDM FKM NBR UR CSM FKM-F FKM-C ■ Locking Operation Locking device of Gear type is available on special request. Lever type Gear type DIAPHRAGM VALVE BUTTERFLY BALL VALVE VALVE SWING CHECK VALVE BALL CHECK, BALL FOOT VALVE AUTOMATIC WATER GATE VALVE GAUGE VALVE STOP VALVE FEEDING VALVE ROTARY ANGLE VALVE CONSTANT FLOW ALFALFA VALVE VALVE Y-SEDIMENT NEEDLE VALVE STRAINER AIR RELEASE VALVE WAFER CHECK VALVE