Samson 3321, Mounting And Operating Instructions

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EB 8111/8112 EN 39
Servicing
7.1.2 For mounting on rods
(Form C)
1. Undo the body nuts (14) gradually in a
criss-cross pattern.
2. Lift the valve bonnet (2) and plug with
plug stem (5) off the body (1).
3. Remove the flat gasket (17). Carefully
clean the sealing faces in the valve body
(1) and on the flange bonnet (2).
4. Insert a new gasket (17) into the body.
5. Place the valve bonnet (2) and plug with
plug stem (5) onto the body.
6. Press the plug (5) firmly into the seat (4),
while fastening down the valve bonnet
(2) with the body nuts (14). Tighten the
nuts gradually in a criss-cross pattern.
Observe tightening torques.
7. Mount actuator. See associated actuator
documentation.
2
8
A33
4
1
A54
5
15
17
14
1 Body
2 Valve bonnet
4
Seat
5 Plug (with plug stem)
8
Threaded bushing
(packing nut)
13 Stud bolt
14 Body nut
15 Packing
17 Body gasket
A33 Rod
A54
Nut
Fig. 10: Type 3321 Valve, DN 65 to 100/NPS 2½ to 4; Form C attachment (mounting using rods)