Asahi AV Products Make Your Systems More Sophisticated. 4 DIAPHRAGM VALVE TYPE14 (Page 10 . 11) TRUE UNION DIAPHRAGM VALVE TYPE14 (Page 12 . 13) DIAPHRAGM VALVE TYPE15 (Page 14 . 15) DIAPHRAGM VALVE TYPE72 (Page 16 - 18) LAB COCK (Page 28 - 30) BUTTERFLY VALVE TYPE57 (Page 31 . 32) BUTTERFLY VALVE TYPE56・TYPE75 (Page 33 . 34) BUTTERFLY VALVE TYPE55 (Page 43 . 44) PDCPD BUTTERFLY VALVE (Page 45 . 46) SWING CHECK VALVE (Page 51 . 52) GATE VALVE (TYPE-C) (Page 62 - 66) AUTOMATIC WATER FEEDING VALVE (Page 67) ROTARY ANGLE VALVE (Page 68) COMPACT BALL VALVE (Page 27) ROTARY DAMPER (Page 47 - 50) ALFALFA VALVER TYPE82 (Page 68)