Samson 2357-11, Монтаж и эксплуатация

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EB 2560 EN 11
Maintenance
4. Insert the plug spring (16) into the new
plug (Type 2357-11 only). Tighten the
seat using a seat wrench and a tight-
ening torque of 20 Nm. Use a suitable
high-performance lubricant (e.g. Gleitmo
595, SAMSON order no. 8150-0116).
5. Check the PTFE gasket (4.1) and replace
it, if necessary.
6. Carefully mount the valve body (1) and
fasten it onto the bottom section of the
body (9) (tightening torque 25 Nm).
6.2 Exchanging the non-return
unit
See Fig. 1 on page 7.
1. Loosen the lock nut (11) and turn the set
point adjuster (10) counterclockwise

to
fully relieve the internal set point springs
(8).
2. Unscrew the body screws (14) using an
open-end wrench (size 19 mm). Lift off
the valve body (1).
3. Unscrew the integrated non-return unit
(12) using a seat wrench (30 mm size
socket) and lift off the valve body (1).
4. Check the ball and seating surface. If
necessary, replace the entire non-return
unit. Mount the non-return unit using a
seat wrench (tightening torque 20 Nm).
Use a suitable high-performance lubri-
cant (e.g. Gleitmo 595, SAMSON order
no. 8150-0116).
5. Check the PTFE gasket (4.1) and replace
it, if necessary.
6. Carefully mount the valve body (1) and
fasten it onto the spring housing (9) us-
ing the body screws (14) (tightening
torque 25 Nm).