43 ■ Extreme Corrosion Resistance All of the wetted parts are completely covered with PTFE, which can result in excellent performance against a highly corrosive media. Therefore BUTTERFLY VALVE TYPE 55 is the most suitable valve for lines of highly corrosive media in factories of Soda electrolysis, Chemicals and Agricultural chemicals. ■ Improved Cv Value Thinner disc makes the area of flow passage wider and the Cv value is improved as a result. ■ Excellent resistibility to high and low temperature. BUTTERFLY VALVE TYPE 55 can be used continuously at the range from -20℃ to 100℃ (-5°F to 210°F) ■ Simple Structure for Stem Sealing Simple structure for stem sealing offers high reliability and also allows for easy maintenance. Electrolytic soda, agricultural chemicals, chemicals, steel, aluminum refining exhaust fumes dischargers, desulfurizers, erosive and corrosive solution lines φ8.2 (Key hole diameter for HANDLE LOCK) 7 13 15 14 12 5 3 2 6 11 17 16 18 19 2a 51 4 1 3a 12a Lever BUTTERFLY VALVE TYPE 55 50mm - 250mm(2inch - 10inch) FEATURES APPLICATIONS SPECIFICATIONS Body material DUCTILE CAST IRON (FCD-S)[with epoxy powder coat] Nominal size mm(inch) 50(2), 80(3), 100(4), 125(5) 150(6), 200(8), 250(10) Disc・Seat material PTFE Max. Working Pressure 1.0MPa{10.2kgf/cm2}[150PS1] Working Temperature −20℃ - 100℃(−5゜F - 210゜F) DIMENSION PARTS & MATERIALS No. DESCRIPTION QTY. MATERIAL REMARKS �@ BODY 1 DUCTILE CAST IRON (FCD-S) epoxy powder coat �A DISC 1 PTFE ○2a INSERTED METAL OF DISC 1 STAINLESS STEEL (SUS304) �B SEAT 1 PTFE ○3a SEAT CUSHION 1 CR �C STEM 1 STAINLESS STEEL (SUS304) �D BUSH 2 STAINLESS STEEL (SUS304) �E O-RING(A) 2 EPDM �F BOLT(A) 2 STAINLESS STEEL (SUS304) �J CAP 1 PP �K HANDLE 1 PP ○12a HANDLE INSERTED METAL 1 STAINLESS STEEL (SUS304) �L HANDLE LEVER 1 PPG �M PIN 1 PPG �N SPRING 1 STAINLESS STEEL (SUS304) �O WASHER 1 STAINLESS STEEL (SUS304) �P BOLT(C) 1 STAINLESS STEEL (SUS304) �Q LOCKING PLATE 1 PPG �R SCREW 4 STAINLESS STEEL (SUS304) ○51 O-RING(B) 1 NBR JIS Unit:mm Nominal Size d JIS 10K D L H H1 H2 H3 W A mm inch C n h 50 2 55 120 2(4) 19 90 44 161 61 105 56 116 220 80 3 80 150 4(8) 19 125 54 180 95 124 56 152 250 100 4 100 175 4(8) 19 154 59 196 99 140 56 174 250 125 5 125 210 4(8) 23 181 64 235 120 166 69 206 320 DIMENSIONS TABLE DIN Unit:mm Nominal Size d DIN PN 10 D L H H1 H2 H3 W A mm inch C n h 50 2 55 125 2(4) 18 90 44 161 61 105 56 116 220 80 3 80 160 4(8) 18 125 54 180 95 124 56 152 250 100 4 100 180 4(8) 18 154 59 196 99 140 56 174 250 125 5 125 210 4(8) 18 181 64 235 120 166 69 206 320 ANSI Unit:inch Nominal Size d ANSI Class 150, ANSI Class 125 D L H H1 H2 H3 W A inch mm C n h 2 50 2.17 4.75 2 (4) 0.75 3.54 1.73 6.43 2.40 4.13 2.20 4.57 8.66 3 80 3.15 6.00 −(4) 0.75 4.92 2.13 7.09 3.74 4.88 2.20 5.98 9.84 4 100 3.94 7.50 4 (8) 0.75 6.06 2.32 7.72 3.90 5.51 2.20 6.85 9.84 5 125 4.92 8.50 4 (8) 0.88 7.13 2.52 9.25 4.72 6.54 2.72 8.11 12.60 WORKING PRESSURE VS. TEMPERATURE ｛10.2｝ 1.0 0.5 0.0 ｛5.1｝ 60 80 100 120 [150] [70] -40 -20 0 20 40 （-40） （-5） （30） （90） （105） （140） （175） （210） （250） Temperature℃（゜F） FCD-S FCD-S Max Working Pressure MPa{kgf/cm2}[PSI] Type55 50mm(2inch) - 250mm(10inch) 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