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VMS - Rev.02

26.04.2004

Installing the Diaphragm

(Concave)

•

Type 1:

Screw the diaphragm clockwise into the compressor so that the cylindrical boss

around the diaphragm stud fits into the recess of the compressor. When contact (resistance)
is felt, turn the diaphragm back (counterclockwise) until the bolt holes in the diaphragm and
bonnet flange are correctly aligned.

Do not continue to tighten.

•

Type 2:

Place the button of the diaphragm at an angle so that part of the button fits in the

recess of the compressor. Push firmly in the center of the diaphragm while turning it back
and forth until the button seats in the compressor

Содержание 653

Страница 1: ...VMS Rev 02 26 04 2004 1 Aseptic Diaphragm Valves Maintenance Operating Guidelines ...

Страница 2: ...VMS Rev 02 26 04 2004 2 Maintenance Overview Travel Stops Diaphragm Replacement Torquing Guideline Accessories ...

Страница 3: ...cap screw Remove the handle invert it and remount it on the spindle Turn the handle clockwise until the resistance of the diaphragm seating is felt Turn the handle another 180 degrees Tighten the travel stop clockwise until it is tight against the bonnet Re assemble the handle and cap screw ...

Страница 4: ... becomes visible Setting the seal adjuster closed position 3 Turn the seal adjuster 6 down clockwise until it stops 4 Rotate the hand wheel clockwise until the desired CLOSED position is reached Turn the seal adjuster 6 up counter clock wise until it stops Setting the stroke limiter open position 5 Rotate the hand wheel counter clockwise until the desired OPEN position is reached Turn the stroke l...

Страница 5: ...hragm Move the valve to the open position Remove the fasteners Move the valve to the closed position Unscrew the diaphragm counter clockwise or for the button style push one side down with your index finger while lifting the other side with your thumb ...

Страница 6: ...When contact resistance is felt turn the diaphragm back counterclockwise until the bolt holes in the diaphragm and bonnet flange are correctly aligned Do not continue to tighten Type 2 Place the button of the diaphragm at an angle so that part of the button fits in the recess of the compressor Push firmly in the center of the diaphragm while turning it back and forth until the button seats in the ...

Страница 7: ...w the the Teflon face back clockwise so that the cylindrical boss of the rubber backing fits completely in the recess of the compressor When contact resistance is felt turn the Teflon face counterclockwise until the bolt holes in the diaphragm and the bonnet flange are correctly aligned Press the edges of the diaphragm face so that it moves back to the close position Types 5E and 5S only ...

Страница 8: ...install fasteners hand tight Bring the valve to the open position Close the valve Open manual and motorized valves 20 Cycle pneumatically actuated valves 3times prior to final tightening Tighten the bolts using a cross pattern Retighten after the system reaches operating temperature and pressure ...

Страница 9: ... 6 8x M16 Nm 50 60 100 120 lbf in 445 534 890 1070 EPDM PTFE Standard values for sealing material Seat Actuation Type 8 601 602 603 605 618 640 641 650 10 612 615 618 625 640 650 653 654 620 640 650 653 654 671 672 673 675 687 688 695 698 25 150 The specified torques are standard values for A2 70 screws with light PTFE film After repeated maintenance cycles the torques necessary for tightening may...

Страница 10: ...lines Bolt Characteristics Property class of the bolt Bolt surface treatment Thread manufacturing rolled or machine cut Lubricants anti seize agents New or used friction factors Tightening procedure Diaphragm material properties Diaphragm compression should be 15 20 of original thickness ...

Страница 11: ...VMS Rev 02 26 04 2004 11 Diaphragm Compression Extreme ...

Страница 12: ...VMS Rev 02 26 04 2004 12 Diaphragm Compression Excessive ...

Страница 13: ...VMS Rev 02 26 04 2004 13 Optimum Compression ...

Страница 14: ...mbly 1 2 Remove the actuator cap to provide access to the fastening threads The first 1 assembly point is between the indicator stem and the actuator spindle The second 2 assembly point is between the stroke limiter and the actuator housing ...

Страница 15: ...VMS Rev 02 26 04 2004 15 Optimum Compression ...

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