Butterfly Valve Type-57P
Butterfly_Valve_Type57P_Install
Rev. B
Parts Identification
Installation Procedure
Caution
Item Qty
Description
1
1
Body
2
1
Disc
3
1
Seat
6
1
O-ring ( C )
7
1
Stem
8
1
Stem Retainer
16
1
Handle
17
1
Handle Lever
18
1
Pin
19
1
Spring
21
1
Bolt
22
1
Indicator Plate
23
4
Screw
24
1
Cap
25
1
Plasgear™
28
4
Bolt
157
4
Screw
158
1
Gasket
183
1
Seat Bushing
184
1
Seat Bushing
185
4
O-ring
186
1
Washer
1) The valve disc is set in the position indicated by the solid lines in Fig. 1 prior to
shipment from the factory. If the valve is opened or closed after unpacking, it
must be reset in this position before installation. Failure to do so may result in
damage to the surface of the valve seat during handling and installation.
2) The valve must not be dropped or come in contact with other objects, as the
sealing surfaces of the disc and or valve seat may be damaged.
3) Care must be used during piping installation to ensure that pipe or flanges are
properly aligned so that the valve disc does not come in contact with them.
Misalignment as shown in Fig. 2 will result in damage to the valve.
4) The installed valve must never be opened or closed when foreign matter such
as sand is present in the pipeline.
Fig. 1
Fig. 2
