DMX, DMAX and Sampling Diaphragm Valves

Transcription

1 DMX, DMAX and Sampling Diaphragm Valves DEFONTAINE Group, DEFINOX Department, 3, rue Louis Renault, ST. HERBLAIN, France 33 (0) (0) Internet: IT-TDFX-045 Revision 2 Page 1/26 February 2003

2 CONTENTS MAINTENANCE INSTRUCTIONS 1 UPDATE MANAGEMENT 3 2 INTRODUCTION (DMX and sampling valve manual control) 4 3 DISASSEMBLING THE VALVE CLAMP AND DIAPHRAGM HANDLE 5 4 INTRODUCTION (DMAX and sampling automatic control valve) DISASSEMBLING THE VALVE DISASSEMBLING THE ACTUATOR (to change the actuator inner seals) 6 5 SIGNAL-BACK UNIT 7 6 CLAMP AND DIAPHRAGM 8 7 DISASSEMBLING THE ACTUATOR INTRODUCTION CHANGING THE INTERNAL PARTS OF THE ACTUATOR 10 8 CHANGING THE SEALS AND REFITTING INTRODUCTION FITTING THE ACTUATOR CHANGING THE ACTUATOR CONFIGURATION REFITTING THE VALVE REFITTING A DN AND/OR DN VALVE EQUIPPED WITH AN ELASTOMER DIAPHRAGM REFITTING A DN VALVE EQUIPPED WITH AN ELASTOMER DIAPHRAGM 14 9 SPARE PARTS FOR MANUAL CONTROL DIAPHRAGM VALVES SPARE PARTS LIST FOR MANUAL CONTROL DIAPHRAGM VALVES SPARE PARTS FOR AUTOMATIC CONTROL ACTUATORS SPARE PARTS LIST FOR AUTOMATIC CONTROL ACTUATORS SPARE PARTS FOR MANUAL CONTROL SAMPLING DIAPHRAGM VALVES SPARE PARTS LIST FOR MANUAL CONTROL SAMPLING DIAPHRAGM VALVES SPARE PARTS FOR AUTOMATIC CONTROL SAMPLING DIAPHRAGM VALVES SPARE PARTS LIST FOR AUTOMATIC CONTROL SAMPLING DIAPHRAGM VALVES PART NUMBERS OF DIAPHRAGM VALVE ACTUATOR SEAL KITS 25 IT-TDFX-039 Revision 2 Page 2/26 February 2003

3 1 UPDATE MANAGEMENT MODIFICATIONS REV. DATE PAGES SIGNED BY New edition 1 October 1997 / R. GABORIT Update 2 January 2003 All R. GABORIT IT-TDFX-039 Revision 2 Page 3/26 February 2003

4 2 INTRODUCTION (DMX and sampling valve manual control) This operation is required to access the diaphragm. It is simple and can be performed on site as it does not involve any particular difficulties. It corresponds to the majority of maintenance operations on this type of valve. IT-TDFX-039 Revision 2 Page 4/26 February 2003

5 3 DISASSEMBLING THE VALVE 3.1 CLAMP AND DIAPHRAGM Remove the clamp. Slide the diaphragm out of its housing. 3.2 HANDLE Unscrew cap and screw (1). Remove handle (2). Remove handle cover (3) Clamp Diaphragm IT-TDFX-039 Revision 2 Page 5/26 February 2003

6 ² MAINTENANCE INSTRUCTIONS FOR DMX AND DMAX DIAPHRAGM 4 INTRODUCTION (DMAX and sampling automatic control valve) A DMAX or sampling DMAX diaphragm valve is disassembled in two distinct steps: 4.1 DISASSEMBLING THE VALVE Extract the actuator and shut-off unit from the body. This operation is required to access the diaphragm and remove the actuator. It is simple and can be performed on site as it does not involve any particular difficulties. It corresponds to the majority of maintenance operations on this type of valve (switch from an NC to an NO valve and vice-versa and diaphragm change). 4.2 DISASSEMBLING THE ACTUATOR (to change the actuator inner seals) This operation must be performed with special tools and with all due precautions. BEWARE: spring under pressure. IT-TDFX-039 Revision 2 Page 6/26 February 2003

7 5 SIGNAL-BACK UNIT First of all, if the valve is equipped with a signal-back unit, it may be necessary to separate the signal-back assembly from the actuator to make it easier to disassemble. To do this: 1. Remove the air supply line from the unit and the one from the actuator (NC (Normally Closed) and DA (Double Acting) only) and take off the cover: Stainless steel covers: Unscrew the nut (1), then remove the washer (2) and the stainless steel cover. Smoked plastic covers: Twist the cover to clear the lugs on the base. 2. Once the cover has been removed, unscrew the gland, identify and disconnect the wires from the terminal strip, then remove the power cable. 3. Remove the base from the actuator: Stainless steel cover base: Unscrew the hex. socket head screw (6) and the threaded rod (5) and remove the base from the actuator. Smoked plastic cover base: Unscrew the hex. socket head screws (6) and remove the base from the actuator. 4. Remove the cam (32) from the actuator by unscrewing the centre screw or by unscrewing it by means of the flat sides. (On units with contacts, disassemble the cam before removing the base). 1 2 UNIT WITH SMOKED PLASTIC COVER Driving hole UNIT WITH STAINLESS STEEL COVER 5 Perforated plug to vent the unit. If the valve is fitted horizontally, put the vent hole at the bottom. 6 Base N.B. Make sure that you do not lose the ring (28) located under the base on removal. IT-TDFX-039 Revision 2 Page 7/26 February 2003

8 6 CLAMP AND DIAPHRAGM Feed air to the NC valve to relieve the clamp of the compressive stress of the spring. Remove the clamp. Switch off the air to the diaphragm valve actuator. Remove the actuator and shut-off assembly from the body of the diaphragm valve. Slide the diaphragm out of its housing. Air Clamp IT-TDFX-039 Revision 2 Page 8/26 February 2003

9 7 DISASSEMBLING THE ACTUATOR 7.1 INTRODUCTION The first operation consists of removing the air coupling, the plastic plug and the Skiffy caps, then removing the hex head screw and the pin protection cam. Skiffy cap Screw Cam Perforated plastic plug Air coupling IT-TDFX-039 Revision 2 Page 9/26 February 2003

10 7.2 CHANGING THE INTERNAL PARTS OF THE ACTUATOR This is a dangerous operation if it is not done with suitable equipment. We recommend using a hydraulic press or equipment as illustrated below. Remember to design a spring expansion distance of 100 mm into the equipment. Position the actuator vertically. Push in the lantern (5). Remove the snap ring (6) from its groove with a small screwdriver. Release the pressure to raise the lantern (5). Remove the lantern with its O-ring (7). Remove the internal components (stem and spring) (8) from the actuator IT-TDFX-039 Revision 2 Page 10/26 February 2003

11 8 CHANGING THE SEALS AND REFITTING 8.1 INTRODUCTION Our valve components are listed and identified in our folder and CD-Rom in the Spare Parts Catalogue section. Here you will find the information required to order your spare parts. 8.2 FITTING THE ACTUATOR BEWARE REFER TO THE NEXT SECTION TO CHANGE THE ACTUATOR CONFIGURATION FROM N.C. TO N.O. This operation is carried out in reverse order to disassembly. However, the following remarks must be taken into account: A guide pin positioned on the actuator stem centres the piston in the shaft. It also prevents the piston from being ejected if the spring slips during compression. Before refitting the components, lubricate the assembly with a suitable grease (water and temperature-resistant bearing grease). Avoid damaging the seals on the edges of the components. Avoid damaging the O-ring (7) on refitting the lantern. Make sure that the snap ring (6) is correctly positioned in the groove before releasing the pressure. Work the actuator with air before continuing the refitting operation. IT-TDFX-039 Revision 2 Page 11/26 February 2003

12 8.3 CHANGING THE ACTUATOR CONFIGURATION Conversion of an NC actuator to NO. NC NO: After opening up the actuator, simply refit the stem/piston and spring assembly upside down in the shaft. ² NC ACTUATOR for DMAX NO ACTUATOR for DMAX Guide pin PART NAME DN 8 to 21.3 DN 21.6 to 52 Pin, Guide 70-A A N.B. For your safety, make sure that the snap ring is correctly positioned in its groove. The snap ring must be replaced if damaged or deformed. IT-TDFX-039 Revision 2 Page 12/26 February 2003

13 8.4 REFITTING THE VALVE This operation is also carried out in reverse order to disassembly. The following recommendations must be observed: Centre the diaphragm on the actuator before inserting it into the valve. Remember to open the air supply to the actuator before tightening the clamp. Before finally connecting up to the system, check that the valve is operating normally. If you encounter any difficulties in carrying out the operations described above, please do not hesitate to contact us. We are also available to carry out maintenance on your valves at our premises or on site. IT-TDFX-039 Revision 2 Page 13/26 February 2003

14 8.5 REFITTING A DN AND/OR DN VALVE EQUIPPED WITH AN ELASTOMER DIAPHRAGM This operation is carried out in the same way as on PTFE diaphragm valves but requires the use of appropriate equipment (25 mm dia., 22 mm long tube and 28 mm dia., 4 mm thick C- washer). Centre the diaphragm on the actuator and open the air supply to the actuator. Put the 25 mm dia. tube on the piston stem and the C-washer in the groove in the piston stem. Remove the air pressure from the actuator. Position the diaphragm in the valve body. Fit the clamp. Supply air once again to the actuator to remove the 25 mm dia. tube and the C-washer. 12 Ø25 ép:1.2 Ø28 ép:4 PART NAME DN 25 to 32 DN 33 to 52 C-washer Tube REFITTING A DN VALVE EQUIPPED WITH AN ELASTOMER DIAPHRAGM This operation is performed without tools, in the following order: Position the diaphragm in the body. Position the actuator. Open the air supply to the actuator. Fit the clamp. IT-TDFX-039 Revision 2 Page 14/26 February 2003

15 9 SPARE PARTS FOR MANUAL CONTROL DIAPHRAGM VALVES DN 8 to DN IT-TDFX-039 Revision 2 Page 15/26 February 2003

16 10 SPARE PARTS LIST FOR MANUAL CONTROL DIAPHRAGM VALVES SMS Ref. PART NAME Qty DN25 DN32 DN38 DN51 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp DIN Ref. PART NAME Qty DN10 DN15 DN28 DN34 DN40 DN52 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp US Ref. PART NAME Qty DN ½" DN ¾" DN 1" DN 1½" DN 2" 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle, PBT Handle, St/Steel Screw, Handle Index, Handle Clamp IT-TDFX-039 Revision 2 Page 16/26 February 2003

17 ISO - STANDARD Ref. PART NAME Qty DN8 DN12 DN15 DN20 DN25 DN32 DN40 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp ISO - FOOD Ref. PART NAME Qty DN8 DN12 DN15 DN20 DN25 DN32 DN40 DN50 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp ISO - CHEMICAL Ref. PART NAME Qty DN15 DN25 DN32 DN40 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp IT-TDFX-039 Revision 2 Page 17/26 February 2003

18 11 SPARE PARTS FOR AUTOMATIC CONTROL ACTUATORS DN 8 to DN IT-TDFX-039 Revision 2 Page 18/26 February 2003

19 < MAINTENANCE INSTRUCTIONS 12 SPARE PARTS LIST FOR AUTOMATIC CONTROL ACTUATORS SMS Ref. PART NAME Qty DN25 DN32 DN38 DN51 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy DIN Ref. PART NAME Qty DN10 DN15 DN28 DN34 DN40 DN52 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy US Ref. PART NAME Qty DN ½" DN ¾" DN 1" DN 1½" DN 2" 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy IT-TDFX-039 Revision 2 Page 19/26 February 2003

20 ISO - STANDARD Ref. PART NAME Qty DN8 DN12 DN15 DN20 DN25 DN32 DN40 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy ISO - FOOD Ref. PART NAME Qty DN8 DN12 DN15 DN20 DN25 DN32 DN40 DN50 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy ISO - CHEMICAL Ref. PART NAME Qty DN15 DN25 DN32 DN40 1 Body Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Spring Shaft, Actuator Screw Plug, Perforated Cam Plug, Skiffy IT-TDFX-039 Revision 2 Page 20/26 February 2003

21 13 SPARE PARTS FOR MANUAL CONTROL SAMPLING DIAPHRAGM VALVES DN 8 to DN IT-TDFX-039 Revision 2 Page 21/26 February 2003

22 14 SPARE PARTS LIST FOR MANUAL CONTROL SAMPLING DIAPHRAGM VALVES DIN Ref. PART NAME Qty DN 6/8 DN 10/12 DN 16/18 1 Body, One-Way Body, Two-Way Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp ISO - STANDARD Ref. PART NAME Qty DN 9/ Body, One-Way Body, Two-Way 1 2 Diaphragm, PTFE Diaphragm, EPDM Screw, Core Body, Upper Screw, Manual Cover, Handle Handle Screw, Handle Index, Handle Clamp IT-TDFX-039 Revision 2 Page 22/26 February 2003

23 15 SPARE PARTS FOR AUTOMATIC CONTROL SAMPLING DIAPHRAGM VALVES DN 8 to DN IT-TDFX-039 Revision 2 Page 23/26 February 2003

24 16 SPARE PARTS LIST FOR AUTOMATIC CONTROL SAMPLING DIAPHRAGM VALVES DIN Ref. PART NAME Qty DN 6/8 DN 10/12 DN 16/18 1 Body, One-Way Body, Two-Way Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Shaft, Actuator Screw Plug, Perforated Cam ISO - STANDARD Ref. PART NAME Qty DN 9/ Body, One-Way Body, Two-Way 1 2 Diaphragm, PTFE Diaphragm, EPDM Screw, Core Ring, Snap Ring, Piston Ring, R Union, Straight Clamp Lantern O-Ring Ring, R Stem, Piston Spring Shaft, Actuator Screw Plug, Perforated Cam IT-TDFX-039 Revision 2 Page 24/26 February 2003

25 17 PART NUMBERS OF DIAPHRAGM VALVE ACTUATOR SEAL KITS STANDARD DIAMETER SMS 25 25/22.6 SMS 32 32/30 SMS 38 38/35.6 SMS 51 51/48.5 PART N OF DMAX ACTUATOR SEAL KIT DIN 10 10/ DIN 15 18/ DIN 25 18/ DIN 32 34/32 DIN 40 40/ DIN 50 53/50 US ½" 12.7/ US ¾" 19.05/ US 1" 25.4/ US 1½" 38.1/34.8 US 2" 50.8/ ISO STD 8 9/ ISO STD /17.2 ISO STD 15 16/ ISO STD /26.9 ISO STD / ISO STD /42.4 ISO STD / ISO FOOD 8 10/ ISO FOOD /17.5 ISO FOOD / ISO FOOD / ISO FOOD /33.7 ISO FOOD /38 ISO FOOD / ISO FOOD /51 ISO CHEM / ISO CHEM / ISO CHEM /38.4 ISO CHEM / STANDARD DIAMETER PART N OF SAMPLING DMAX ACTUATOR SEAL KIT DIN 8 6/ DIN 10 10/ DIN 15 18/ ISO STD 8 9/ IT-TDFX-039 Revision 2 Page 25/26 February 2003

26 OUR SUBSIDIARIES GERMANY DEFONTAINE DEFINOX AM Blöcken 20 D-21493TALKAU : (49) 04156/ : (49) 04156/ Rudiger.Brand@t-online.de SPAIN DEFONTAINE IBERICA Dépt. DEFINOX Pol. La Granga Parc VIANA (Navara) : (34) : (34) defonta@eniac.es ITALY DEFONTAINE ITALIA S.R.L. Via Delle Industrie N 13/ ARESE MILANO Italy : (39) 02/ : (39) 02/ info@defita.com UK DEFONTAINE UK Ltd Dept. DEFINOX Unit 10 Malmesbury Business Park Tetbury Hill Malmesbury Wiltshire SN16-9JU GREAT BRITAIN : (44) : (44) nick.barton@uk.defontaine.com USA DEFONTAINE OF AMERICA, inc. Dept. DEFINOX W. Victor Road New Berlin Wisconsin USA : (1) : (1) lbuckett@definox-usa.com CHINA DEFINOX (Beijing) Stainless Steel Equipment Ltd No 18 East Road An Ning Zhuang Qinghe BEIJING HAIDIAN District BEIJING CHINA : (86) : (86) xiuli@public3.bta.net.cn JAPAN DEFINOX JAPON Maison Passagnia 201 Yoshida-cho 1014 Totsuka-ku Yokohama-shi Kanagawa-ken JAPAN / : (81) definox_japon@ybb.ne.jp The technical characteristics of the products featured in this manual are provided for information only and are liable to change as a result of technological developments. The photographs, drawings and diagrams contained in this manual are not contractual. DEFINOX is a registered trademark of the DEFONTAINE Group. IT-TDFX-039 Revision 2 Page 26/26 February 2003