Butterfly Valve Type-57P
Butterfly_Valve_Type57P_Install
Rev. B
Installation Procedure for Handle
Install the handle on the valve stem. Set the direction to correspond with the indication line at the top of
the stem, which should agree with the disc position.
1) Secure the handle at the top of the stem with the enclosed bolt and washer
using a socket wrench.
2) Set the cap on top of the handle, aligning the marks and gently strike with a
plastic hammer until seated.
Nominal Size
1-1/2” – 4”
5”- 8”
Bolt size
M6 X 15mm Long M8 X 15mm Long
Socket size
10mm
13mm
Removal Procedure
1) To remove cap, insert a flat head screwdriver into the indentation and pry up
2) Remove the bolt and washer using a socket wrench, then remove handle.
Adjustment for the travel stop Gear type
The adjustments for Full Open and Full Closed positions are preset at the
factory. If adjustment is required refer to the following procedure:
Adjustment for Full Closed (Open)
1) Remove protective rubber caps
2) Loosen stop bolt with allen key
3) Adjust disc to desired position
4) Tighten stop bolts at end positions
5) Replace protective rubber caps
Note:
You can only adjust 1 stop bolt at a time at the
end of travel in each position.
If stop bolt is hard to
turn, rotate hand wheel 1 turn in opposite direction to
relieve pressure on gear, then reset disc position and
tighten stop bolt.
Full Open position
Full Shut (Closed) position
Full Closed Full open
