Diaphragm Valve, Plastic

Transcription

1 Valve, Plastic Construction The GEMÜ / way valve has a low maintenance membrane actuator which can be controlled by inert gases. Normally Closed, Normally Open and Double Acting control functions are available. All medium wetted parts and the actuator housing are made of plastic. Features Suitable for inert and corrosive* liquid and gaseous media Valve body and diaphragm available in various materials and designs Insensitive to particulate media Various connections available Advantages Optional flow direction, will seal in either flow direction up to full working pressure Optional mounting position Body and diaphragm sizes have coordinated diameters hence the fitting time is reduced because the pipe and fixing centres remain the same. Spares inventory is also reduced. Optional accessories Electrical position indicator Electrical position indicator with microswitches or proximity switches Mounting bracket according to NAMUR Pneumatic or electropneumatic positioner Stroke limiter (DN : observe marking on actuator cover) * see information on working medium on page Actuator dimensions Control function (mm) size ø B A A

2 Technical data Working medium Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm materials. Max. perm. temperature of working medium: See datasheet "Technical Information on Plastic Materials" Control medium Inert gases Max. permissible temperature of control medium C Control function Control functions + 3 K v value MG** DN Working pressure Working pressure Control pressure Working pressure Working pressure Control pressure* EPDM / FPM PTFE EPDM / FPM PTFE (m 3 /h) bar 0 6 bar bar 0 0 bar 0 6 bar max. 5.5 bar bar 0 6 bar bar 0 0 bar 0 6 bar max. 5.5 bar bar 0 6 bar bar 0 0 bar 0 6 bar max. 5 bar bar 0 6 bar bar 0 6 bar 0 6 bar max. 5.5 bar bar 0 bar bar 0 6 bar 0 bar max. 5.5 bar 9.0 All pressures are given as gauge pressures, working pressure applied upstream only. Given Kv values with diaphragm material EPDM. *For required control pressure depending on working pressure see diagram below ** size Control pressure characteristic DN (EPDM, FPM) Control functions and 3 Control pressure in bar Working pressure in bar

3 Order data Body configuration Straight through D Valve body material PVCU ABS PP 5 PVDF Lining PPH, natural/outliner PP, reinforced 70 Lining PPH RAL 70, coloured/outliner PP, reinforced 7 Connection Spigots DIN 0 Flanges DIN, Form C, Facetoface EN 8, series Union ends with DIN insert (socket) 7 Spigots for infrared butt welding (IR) Spigots for infrared butt welding, BCF 8 Spigots inch 30 Union ends with inch insert (socket) Flanges ANSI B.5, class RF Facetoface EN 8, series 39 Union ends with DIN insert (IR butt welding) 78 material CSM NBR FPM EPDM PTFE/EPDM PTFE loose MG 5E* PTFE/FPM PTFE loose MG 5F* PTFE/EPDM PTFE laminated MG 5 PTFE/FPM PTFE laminated MG 56 *Usability see table on last page of data sheet MG = diaphragm size Control function Normally closed Normally open Double acting 3 Order example D 7 Type Nominal size Body configuration (code) Connection (code) Valve body material (code) material (code) Control function (code) D 7 3

4 Body dimensions Butt weld spigots DIN, connection code 0 (mm) Material code Material code 5 Material code Material code 70, 7 MG* DN L H H ød c L H H ød c L H H ød c L H H ød c 8 3 * MG = diaphragm size Body dimensions Butt weld spigots INCH, connection code 30, material code, (mm) size DN L H H ød c ½ ¾ ¼ ½ ½

5 Body dimensions Union ends with inserts for socket welding DIN Connection code 7 (mm) size DN LA LB H H ød ød G LA 3 6 Material code Material code, 70, ¼ ½ ¼ ¾ 3 LB H H ød ød G ¼ ½ ¼ ¾ Body dimensions Union ends with inserts for socket welding INCH Connection code, material code (mm) size DN LA LB H H ød ød G ½ ¾ ¼ ½ ¼ ½ ¼ ¾ 5

6 Body dimensions Spigots for infrared butt welding (IR), connection code (mm) Material code Material code 70 and 7 size DN L H H ød S c L H H ød s c Body dimensions Spigots for PVDF butt welding Connection code 8, material code (mm) size DN L H H ød c c s

7 Body dimensions Union ends with inserts for butt welding Connection code 78, material code, 70, 7 (mm) s size DN LA LC H H ød ød G 70, 7 c ¼ ½ ¼ ¾ Body dimensions Flanges Connection code, 39 material code 5,, 70**, 7** (mm) size DN L H H ø D ø d ø d ø k / 3/ / / / 3 * depending on material code see body dimensions page connection 0 depending on material code see body dimensions page connection * no DIN length ** Material code 70, 7 only DN Connection code Number of bolt holes 8 8 Connection code 39 ø D ø d ø d ø k Number of bolt holes 8 7

8 Material code Connection code MG DN 0 PVC ( ) Overview of valve bodies for GEMÜ PP PP ( 70, 7)* PVDF ( )* ABS ( 5) ( ) * Valve bodies are suitable for use with diaphragms code 5E and 5F. MG = diaphragm size Technical data sheet Actuator dimensions control functions and 3 (mm) size ø B A A A Mounting dimensions (mm) size M f M6 M8 M8 M see drawing DN to For further plastic diaphragm valves, accessories and other products, please see our Product Range catalogue and Price List. Contact GEMÜ. DN Should there be any doubts or misunderstandings, the German version of this data sheet is the authoritative document! Subject to alteration 0/ VALVES, ACTUATORS AND CONTROL SYSTEMS GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG FritzMüllerStr. D3 IngelfingenCriesbach Tel. +9 (0) 79/30 Telefax +9 (0) 79/ info@gemue.de