Samson EB 14b, Монтаж и эксплуатация

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3-7
EB 14b_EN
January 2022 edition
Subject to technical changes
Design and principle of operation
Figure | 3-4: Sectional drawing of the BR 14c butter fl y valve with spring washer preloaded V-ring packing
Table | 3-3: Parts list for the BR 14c butter fl y valve with spring washer preloaded V-ring packing
Pos. Designation Pos. Designation Pos. Designation
1 Valve body 10 Set of spring washers 20 Screw
2 Shaft 11 Bearing bush 21 Spacer
3 Valve disc 12 Bearing bush 22 Spacer
4
Metal seat ring 13 Body sealing 23 Bonnet sealing
Seal ring 14 Grooved pin 24 O-ring
5 Fastening ring 15 Spacer 25 Intermediate fl ange
6 Stuf fi ng box 16 Stud bolt 26 Screw
7 Bonnet 17 Nut 29 O-ring
8 Thrust washer 18 Mating washer 30 Screw
9 V-ring packing 19 Tension spring
3.5.3.2 Assembling butter fl y valves up to
DN | 300 (NPS12)
Ö
Insert the PTFE seal ring (4) or the metal seat ring including
the corresponding graphite rings (4) into the body.
It is essential to pay attention to cleanliness during assembly.
Ö
Insert the o-ring (24) into the fastening ring (5).
Ö
Place the preassembled fastening ring (5) on the seal ring
and press it in with a press.
Ö
Loosen the bonnet (7).
Ö
Push the tension spring (19) into the slot.
Ö
Fasten the bonnet as previously described.
Info
3.5.3.3 Assembling butter fl y valves from
DN | 400 (NPS14)
Ö
Insert the PTFE seal ring (4) or the metal seat ring including
the corresponding graphite rings (4) into the body.
It is essential to pay attention to cleanliness during assembly.
Ö
Place the fastening ring (5) on the seal ring (4) and adjust
with the screws (26).
Ö
Tighten the screws (26) evenly in a criss-cross pattern.
Info