Symbol IN OUT EXH. C B AA SUP D A E F G 12 10 1 3 2 Pressure Relief 3 Port Valve (V) With the use of a 3 port valve for residual pressure release, pressure left in the line can be easily exhausted. Model VHS20 VHS30 VHS40 F 28 30 36 G . . 22 H 45 55 63 A 40 53 70 AA 34 46 63 B 59 78 107 C 20 29 39 D 45 55 58 E 33 42 44 1. If a tube, a stop valve or a silencer is connected to the exhaust port of VHS20/30, the effective sectional area should be larger than the figure indicated in the following table, to prevent malfunction caused by back pressure. (This is not applicable to VHS40) Caution Effective area (mm2) 5 5 Model VHS20 VHS30 Model VHS20 VHS30 VHS40 IN,OUT Effective area (mm2) ( ): Effective Area mm2 (Cv) IN OUT 10 (0.54) 14 (0.76) 16 (0.87) 31 (1.68) 27 (1.46) 38 (2.06) 55 (2.98) OUT EXH. 11 (0.60) 16 (0.87) 14 (0.76) 29 (1.57) 36 (1.95) 40 (2.17) 42 (2.28) Note) Use an air filter on the IN side for operating protection. Specifications EXH. Port size 1/8 1/4 1/4 3/8 1/4 3/8 1/2 1/8 1/4 3/8 Applicable model ACG20 ACG30 ACG40 VHS 30 03 Pressure relief 3 port valve Body size Thread type Nil N F Rc NPT G Semi-standard Code R Z Note 1) Only for the NPT thread. This product is for overseas use only according to the new Measurement Law. (The SI unit type is provided for use in Japan.) Symbol 20 30 40 20 �� �� . . 30 . �� �� . 40 . �� �� �� Body size Port size Symbol 01 02 03 04 Port size 1/8 1/4 3/8 1/2 How to Order (1) (mm) 3 port valve for residual pressure release Lockable at the time of exhaust oH 2 x o10 Description Flow direction: Right to left Name plate in imperial units (psi, °F) 559 Air Combination Series ACG AC-A AF-A AF�ｮ-A AR-A AL-A AW-A AC AF AF�ｮ AR AL AW�ｮ A�ｮG E�ｮ AV AF