Diaphragm Valve, Plastic Construction The pneumatically operated 2/2 way diaphragm valve GEMÜ is a corrosionresistant all plastic construction. It has a maintenancefree piston actuator which can be controlled by any inert gas. GEMÜ has a stroke limiter and an integral optical position indicator. The control functions "normally closed", "normally open" and "double acting" are available. Features Suitable for inert and corrosive liquid and gaseous media Valve body and diaphragm are available in various materials Connection for pilot valves acc. to NAMUR Control connection positioned inline with piping as standard, thus installable in extremely restricted spaces Advantages Variable spring facility for working pressures up to 10 bar upstream and downstream Mounting plate for height compensation of differing body dimensions Upper part of actuator rotatable x 90 Optional accessories Electrical remote indication Electrical position indicator with microswitches or proximity sensors Pneumatic or electropneumatic positioner Actuator dimensions (mm) DN B B1 A A1 A2 100 1 1 11 9 8 11 192 230 93 110 65 65
Working medium Suitable for any inert or corrosive liquid or gas, subject to the correct choice of body and diaphragm material. Max. perm. temperature of working medium: See datasheet "Technical Information on Plastic Materials" Control medium Min. required control pressure see table below Max. permiss. control pressure 6 bar Max. permiss. temp. of control medium C Nominal size Control function 1 (bar) Control functions 2+3 (bar) K v value Weight (mm) Working pressure* Control pressure Working pressure Control pressure (m 3 /h) (kg) 0 10** 0 10** 0 10** 0 10** 0 10** 0 10** min. bar max. 6 bar 0 10 0 10 0 10 0 10 0 10 0 10 min. 3 bar max. 6 bar * Working pressure applied upstream only; ** Working pressure with PTFE diaphragm (ref. no. 52): 06 bar further designs on enquiry. All pressures are given as gauge pressures. 5.6 8.2 10.5.0.0 6.0 1.8 1.8 1.8.0.0 7. Body configuration Straight through Connection D Spigot ends for solvent / butt welding DIN (PVCU, PP, PVDF, ABS) 0 Loose flange, PN 10, for flange sleeve DIN 162 T 12 Loose flange for short stub ends DIN 162 T3 0 Union ends with metric sockets DIN 7 Spigots for infrared butt welding (IR) for pipes acc. to DIN 8077 series (PP) Spigots for butt welding BCF (PVDF) 28 Spigot ends for solvent / butt welding inch 30 Union ends with imperial sockets inch Union ends with insert for butt welding acc. to DIN 162 T 13 series 78 Valve body material PVCU 1 ABS PP 5 PVDF Lining PPH natural 70 Lining PPH grey acc. RAL 70 71 Diaphragm material Perbunan NBR 2 Viton FPM EthylenePropylene EPDM 1 PTFE/EPDM PFTE laminated 52 Control function Normally closed 1 Normally open 2 Double acting (only DN ) 3 Order example D 7 1 1 1 Type Nominal size (mm) Body configuration (D) Connection (reference number) Body material (reference number) Diaphragm material (reference number) Control function (reference number) D 7 1 1 1 2
Mounting dimensions (mm) DN M f M6 M6 M6 M8 M8 M8.0.0.0.5.5.5 Body dimensions Solvent cement / butt weld spigots DIN ref. no. 0 (mm) Material ref. no. 1 Material ref. no. 5 Material ref. no., 70, 71 DN L ød H H1 c H H1 c H H1 c 1 1 1 19 2 78 16 19 22 31 39 16 19 22 27 19 22 29 Body dimensions Solvent cement and butt weld spigots INCH ref. no. 30, material ref. no. 1, (mm) DN L H H1 ød c 1/2 3/ 1 1 1/ 1 1/2 2 11 1 1 19 2 21..7.6 2.2 8.3 60.3 27 30 39 3
Body dimensions Unions with metric sockets DIN ref. no. 7 (mm) Material ref. no. 1 Material ref. no., 70, 71 DN ød ød G LA LB H H1 LA LB H H1 3 53 60 83 103 G1 G 1 1/ G 1 1/2 G 2 G 2 1/ G 2 3/ 13 1 16 2 166 192 222 13 1 1 16 162 6 210 8 Body dimensions Unions with imperial sockets INCH ref. no., material ref. no. 1 (mm) DN LA LB H H1 ød ød G 1/2 3/ 1 1 1/ 1 1/2 2 13 1 1 6 170 198 2 2 3 53 60 83 103 21..7.6 2.2 8.3 60.3 1 1 1/ 1 1/2 2 2 1/ 2 3/ Body dimensions PP butt weld spigots ref. no., material ref. no. 70, 71 (mm) DN L H H1 ød s c 19 19 2 2.3 3.7.6 5.8
Body dimensions PVDF IR weld spigots (BCF) ref. no. 28 (mm) DN L H H1 ød c c1 s 19 19 2 28 28 28 6 6 6 2. 2. Body dimensions Union ends with metric butt weld spigots ref. no. 78, material ref.no., 70, 71 (mm) DN LA LCH H1 ød ød G s c 13 1 21 2 23 8 28 3 3 53 60 83 103 G 1 G 1 1/ G 1 1/2 G 2 G 2 1/ G 2 3/ 2.3 3.7.6 5.8 39 1 3 3 5
Body dimensions with flanges ref. no. (mm) Body dimensions with flanges ref. no. 0 (mm) Material ref.no. 5, Material ref.no. 70, 71 Mat. ref.no. 5, Mat. ref.no. 70, 71 DN L øk ød ød2 ød H H1 ød H H1 L øk ød ød2 ød H H1 H H1 1* 65 1 160 85 0 100 0 110 230 1 * no DIN length 95 105 1 1 1 165 1 1 1 3 1 61 90 1 61 90 16 1 1 238 85 100 110 1 95 105 1 1 1 165 1 1 1 3 1 61 90 No. of bolt holes Technical data sheet Overview of valve bodies for GEMÜ Material PVCU (ref.no. 1) PP (ref.no. 5) PP (ref.no. 70, ref.no. 71) PVDF (ref.no. ) ABS (ref.no. ) Conn. (ref.no.) 0 7 30 0 0 0 0 7 78 0 0 7 28 78 30 DN DN DN DN DN DN Subject to alteration 08/01 8808802 VALVES, ACTUATORS AND CONTROL SYSTEMS GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG FritzMüllerStr. D653 IngelfingenCriesbach Telefon +9 (0) 79/1230 Telefax +9 (0) 79/1232 email: info@gemue.de http://www.gemue.de