221 PIPE BOLT DIMENSIONS (REFERENCE: RECOMMENDED DATA) DIAPHRAGM VALVE BALL VALVE CHECK VALVE OTHER VALVES mm inch PIPE BOLT DIMENSIONS VALVE TYPE D S L 15 1/2 M12 30 55 TYPE 14 20 3/4 M12 30 55 25 1 M16 38 60 32 1 1/4 M16 38 65 40 1 1/2 M16 38 65 50 2 M16 38 70 65 2 1/2 M16 38 75 80 3 M16 38 75 100 4 M16 38 75 125 5 M20 52 80 TYPE 15 150 6 M20 52 85 200 8 M20 52 90 TYPE 72 250 10 M22 56 100 (FOR JIS10K) UNIT: mm L S D TYPE 14 TYPE 15 TYPE 72 mm . 15 20 25 32 40 50 65 80 100 125 150 200 250 inch . 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8 10 RUBBER DIAPHRAGM 3.0 {31} 3.0 {31} 5.0 {51} 5.0 {51} 12.0 {122} 15.0 {153} 13.0 {133} 18.0 {184} 35.0 {357} 45.0 {459} 45.0 {459} 30.0 {306} 30.0 {306} PTFE DIAPHRAGM 5.0 {51} 5.0 {51} 8.0 {82} 8.0 {82} 15.0 {153} 20.0 {204} 15.0 {153} 20.0 {204} 40.0 {408} 45.0 {459} 45.0 {459} 30.0 {306} 30.0 {306} DIAPHRAGM VALVE BONNET TIGHTENING TORQUE UNIT: N・m {kgf・cm} The diaphragm may become loose due to temperature changes during long storage, operation stop or while in use. Check the conditions and then retighten the bolts and nuts between the bonnet and the body to the "bonnet tightening torque". (For bonnet tightening torque, see the table below.) NOTES ■ BALL VALVE ■ 3 WAY BALL VALVE TYPE 23, TYPE 23H ■ SWING CHECK VALVE ■ WAFER CHECK VALVE ■ BALL CHECK VALVE ■ BALL FOOT VALVE ■ STOP VALVE (GLOBE VALVE), CONSTANT FLOW VALVE ■ GAUGE VALVE ■ SEDIMENT STRAINER (TYPE Y) FLANGED (JIS10K) UNIT: mm SIZE 13 15 20 25 32 40 50 65 75 100 125 150 200 250 300 350 SCREW SIZE M12 M12 M12 M16 M16 M16 M16 M16 M16 M16 M20 M20 M20 M22 M22 M22 NO. OF FLANGE HOLES 4 4 4 4 4 4 4 4 8 8 8 8 12 12 16 16 FLANGE THICKNESS 14 14 15 15 16 16 20 22 22 22 24 26 28 30 30 34 NOMINAL LENGTH TS FLANGE 55 55 60 60 65 65 70 75 75 75 85 90 100 100 100 110 BALL VALVE TYPE 21, 21α . 55 55 60 65 65 65 70 70 70 . . . . . . 3 WAY BALL VALVE TYPE 23, 23H . 55 55 60 65 65 65 70 70 70 . . . . . . SWING CHECK VALVE . 55 55 60 65 65 70 75 75 75 85 85 100 . . . GAUGE VALVE . . 55 60 . . . . . . . . . . . . BALL CHECK VALVE . 60 60 65 . 65 75 . 80 80 . . . . . . BALL FOOT VALVE . 60 60 65 . 65 75 . 80 80 . . . . . . STOP VALVE (GLOBE VALVE) . 55 55 60 65 65 65 70 70 70 . . . . . . CONSTANT FLOW VALVE . 55 55 60 . . 70 . 75 75 . . . . . . SEDIMENT STRAINER (TYPE Y) . 55 60 65 65 65 70 75 75 75 . . . . . . WAFER CHECK VALVE . . . . . . . . 150 160 175 185 210 230 230 . NOTES (1) The above values indicate the bolt dimensions when an AV TS flange and AV packing are used. (2) The numbers in a circle indicate the number of bolts required to connect one side of flange. When there is no indication, refer to the number of flange holes. APPENDICES