LEUSCH LTR 43 Series Operating And Service Instructions Download Page 10

10

Replacement of the Seating system

LEUSCH Butterfly valves are available in several
series for almost all kind of applications and spec-
ifications.
The series are different in the design of the seat-
ing system. The procedure to replace the seat
and seatring are described in separate docu-
ments.
If it is necessary to replace the seating elements,
note the type series from the name-plate and re-
quest the adequate instruction from LEUSCH
Industrial Valves. It can also be  downloaded from
the homepage (www.leusch.de).

Type Series LTR43-2
Document-No.: MI-LTR43-2-SR-EN

Type Series LTR43-3
Document No.: MI-LTR43-3-SR-EN

Type Series LTR43-4
Document-No.: MI-LTR43-4-SR-EN

Type Series LTR43-5
Document-No.: MI-LTR43-5-SR-EN

Type Series LTR43-9
Document No.: MI-LTR43-9-SR-EN

Summary of Contents for LTR 43 Series

Page 1: ...tor e g pneumatic electrical or hydraulic the following applies Do not put any parts of your body limbs inside the valve when an actuator is in stalled Sudden unexpected moving parts e g through actin...

Page 2: ...ransport of the valves e g dry storage use of suitable sling materials etc Use of the valves with fluids that the select ed materials are sufficiently resistant to The fluid compatibility of the valve...

Page 3: ...atal injury if the auxiliary ener gy suddenly fails and the valve disc then moves on its own into the fail safe position as a result of spring decompression For devices equipped with a spring return a...

Page 4: ...that The valve disc does not collide with the pipeline during opening closing The parts which come into contact with fluid are suitable for the planned usage Actuators and accessories if available ar...

Page 5: ...f only torque values are required Complete Packing and repair sets for maintenance of the valves are available from LEUSCH or and the authorised LEUSCH representative Before contacting your representa...

Page 6: ...proce dure 10 Valves which are not actuated for long periods must undergo functional tests on a regular basis If necessary shorter maintenance intervals may be required if increased wear is expected o...

Page 7: ...the drive shaft is rotated clock wise right turning closure Fig 6 Installing the actuator See also the instructions for the different actuators 1 Turn the disc to the OPEN position to avoid dam age t...

Page 8: ...5 and washers 56 9 Tighten the nuts 55 alternately by hand using minimal force 10 Install the key 68 11 Put the valve into operation and alternately tighten the nuts 55 in little steps in the event of...

Page 9: ...ium residues around the cover 1 Loosen and remove the screws 53 Fig 10 2 Disassemble the cover 7 and remove the old cover seal 37 3 The ring 25 may fall out fom the body when the cover is disassembled...

Page 10: ...rate docu ments If it is necessary to replace the seating elements note the type series from the name plate and re quest the adequate instruction from LEUSCH Industrial Valves It can also be downloade...

Page 11: ...may be available on additional metal plates Service It is recommended to check the device regularly for external leaks and other adverse effects or anything conspicuous The Gland Packing usually consi...

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