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VH*-OMX0068-C PRODUCT NAME Pressure Relief 3 Port Valve with Locking Holes MODEL / Series / Product Number VHS20-(F,N)01~(F,N)02(-B,S)(-K,M,R,Z)-D VHS30-(F,N)02~(F,N)03(-B,S)(-K,M,R,Z)-D VHS40-(F,N)02~(F,N)04(-B,S)(-K,M,R,Z)-D VHS40-(F,N)06(-B,S)(-K,M,R,Z)-D VHS50-(F,N)06~(F,N)10(-B,S)(-K,M,R,Z)-D VHS20W-(F,N)01~(F,N)02(-B,S)(-K,M,R,Z)-D VHS30W-(F,N)02~(F,N)03(-B,S)(-K,M,R,Z)-D VHS40W-(F,

18 Construction p. 20 Dimensions p. 21 Auto Switch Mounting p. 24 MWB-UT Series/Lock Unit How to Order/Specifications p. 32 Construction p. 33 Dimensions p. 34 Made to Order Individual Specifications p. 35 Dimensionally Compatible with the MNB Series (-X3000) Simple Specials p. 36 Change of Rod End Shape (-XA0 to XA30) Made to Order Common Specifications p. 38 With Coil Scraper

Ltd. 1-16-4 Shimbashi, Minato-ku, Tokyo 105-0004 JAPAN Tel: 03-3502-2740 Fax: 03-3508-2480 Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. Printed in Japan. 1st printing December, 1998 D-SMC.L.A. P-86.5 (JT)

Mode button 1s Set button 1s or Mode button 1s Set button 1s B D C Fig. 40 No.DIG-31900-OM002 49 B Mode button 1s Set button 1s or Mode button 1s Set button 1s P constant I constant D constant Fig. 40-1 C Mode button 1s Set button 1s or Mode button 1s Set button 1s P constant I constant D constant Fig. 40-2 D Mode button 1s Set button 1s or Mode button 1s Set button 1s P constant

Dimensions p. 17 PF3A7H/Function Details p. 20 PFG300/Function Details p. 22 Safety Instructions Back Cover 8 3-Color Display Digital Flow Switch for Large Flow PF3A7H Series RoHS How to Order PF3A H 10 03 M CS 7 Calibration certificate*8 Type 7 Integrated display Nil None A*9 Yes *8 Certificate in both English and Japanese *9 Made to order Rated flow range 03 30 to 3000 L/min 06 60

Nijverheidsstraat 20 B-2160 Wommelgem Belguim TEL: 03-355-1464 FAX: 03-355-1466 TAIWAN SMC Pneumatics (Taiwan) Co.,Ltd. 17, Lane 205, Nansan Rd., Sec.2, Luzhu-Hsiang, Taoyuan-Hsien, TAIWAN TEL: 03-322-3443 FAX: 03-322-3387 POLAND SMC Industrial Automation Polska Sp.z.o.o. ul.

3 (R) 1 (P) 3 (R) Pilot pressure (MPa) Pilot pressure range 0.5 N.C.

0 i.03 L I /A r{/ALl2 .tti, Pm225tI t, -2, -3 8 . 1 4 8.34N/A llF) lYo-12 UNt .38 l.t 3 t.?0 5.03 21 t{/a N/A 1,25 .0J P[152flt -1, .2, -3 5.68 0.J/ 1.73(rFl r%.r? ul{ .501.481.753.63 /A l.v 1.19[/a !

Rod End Nut Material: Rolled steel 03 32 01 03 TZ Applicable bore (mm) Applicable pin O.D. Part no. TU TV TW TX TY 0.040 0.076 0.040 0.076 0.050 0.093 0.050 0.093 0.050 0.093 0.050 0.093 0.050 0.093 0.065 0.117 Part no.

hole) 20 12 23 15 1/8,1/4 (P , R port) 48 1797

Ltd. 1-16-4 Shimbashi, Minato-ku, Tokyo 105-0004, JAPAN Tel: 03-3502-2740 Fax: 03-3508-2480 URL http://www.smcworld.com Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. Printed in Japan. 1st printing September, 1999 D-SMC.L.A. P-80 (D)

Nijverheidsstraat 20 B-2160 Wommelgem Belguim TEL: 03-355-1464 FAX: 03-355-1466 TAIWAN SMC Pneumatics (Taiwan) Co.,Ltd. 17, Lane 205, Nansan Rd., Sec.2, Luzhu-Hsiang, Taoyuan-Hsien, TAIWAN TEL: 03-322-3443 FAX: 03-322-3387 POLAND SMC Industrial Automation Polska Sp.z.o.o. ul.

Safety Instructions Be sure to read Precautions for Handling Pneumatic Devices (M-03-E3A) before using.

Safety Instructions Be sure to read Precautions for Handling Pneumatic Devices (M-03-E3A) before using.

OFF state { A R1 (Exhaust air) P B (Supply air) F1 < F2 condition: See figure q. ON state { { Immediately after turning on F1 > F2: See figure e.

Ltd. 1-16-4 Shimbashi, Minato-ku, Tokyo 105-0004 JAPAN Tel: 03-3502-2740 Fax: 03-3508-2480 Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. Printed in Japan. 1st printing November, 1998 D-SMC.L.A. P-77.5 (JT)

Grommet: G Conduit: C (Q) Approx. 300 Approx. 280 Approx. 300 D D F Q F Q Width across flats H Class H coil Broken line section C C R G1/2 R E E A H A B B 2 x P Port size 2 x P Port size 2 x M, thread depth N 2 x M, thread depth N L L K K DIN terminal: D Conduit terminal: T Cable 6 to 12 F S Q 27.5 34 F (Q) 25 R C U C (44) R E R G1/2 E G1/2 A H D (S) B B A H D 2 x P Port size 2 x P Port size

Note 1) ( ): Long stroke Note 2) Refer to p.1.6-11 for pivot bracket.

l/min Formula based on effective area (Smm) VCB 3 Cv = 0.35 3 4 1.0 Q = 0.8 S 10.2 P l/min VCB23 Cv = 0.33 VCB25 Cv = 0.65 Q: Flow rate (l/min) P:Pressure differential (P P) P: Upstream pressure (MPa) P: Downstream pressure (MPa) S: Effective area (mm) Cv: Cv factor VCB34 Cv = 0.54 VCB24 Cv = 0.51 0.1 0.001 0.01 0.1 1 10 Pressure differential P = (P P) MPa 5 Model Selection Series