SYLAX
®
Installation Instructions
2” thru 12”
Flomatic Corporation
High Quality Valves Built to Last...
Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801
Phone: 518-761-9797 Fax: 518-761-9798 www.flomatic.com
SYLAX
Rev: A (2/17)
REMOVING VALVE FROM SYSTEM:
WARNING
!
Loosening the bolts on a pressurized valve/system can cause the valve to shift and release
uncontrolled pipeline fluid. This will cause personal injury and/or pipeline damage.
Relieve the pressure from the system and make sure to drain the pipeline before loosening valve bolting.
Close the Sylax
®
butterfly valve disc before removing from between the pipe flanges.
If the Sylax
®
butterfly valve has an electric actuator make sure to turn off and lock out the power
before removing or servicing.
If the actuator is powered, disconnect and lock out any electric, pneumatic or hydraulics to prevent injury
and/or accidental operation.
Support the Sylax
®
butterfly valve, remove the bolts completely then remove the Sylax
®
butterfly valve
from the pipeline.
Do not lift by the stem – this will damage the Sylax
®
butterfly valve and void the warranty.
TROUBLE SHOOTING:
PROBLEM REASON
POSSIBLE
SOLUTION
Valve does not fully close
Debris wedged between disc and
seal or stop is not adjusted correctly
Open valve to flush out debris or
adjust the close stop
Leakage at sealing surface
Seat damaged, disc damaged or
dirt between disc and seat
Replace seat or disc, clean the
sealing surface
Leakage at the shaft
The seat shaft hole damaged, or O-
ring damaged
Replace seat or O-ring
Leakage at flange end
The bolt did not contact tightly, or
not uniform, or seat damaged
Tighten bolts or replace the seat.
Warning: Working pressure, temperature, media must match valve capability or valve/piping
damage can occur.
Working pressure must not exceed valve maximum pressure rating.
Temperature must not exceed maximum temperature rating.
Media must be compatible with body, seat, seals and disc material.
Flomatic Valves is not responsible for the loss caused by the usage beyond the valve capabilities.
SIZE & QUANTITIES OF BOLTS FOR INSTALLATION:
SIZE
Flange 125# / 150#
in mm
QTY
Bolt
Ǿ
Bolt Length Torque (ft/lbs)
2-1/2 65 4
⅝
2-1/2 25-75
3 80 4
⅝
2-1/2 25-75
4 100 8
⅝
3 30-90
5 125 8 ¾
3
30-90
6 150 8 ¾ 3-1/4
30-90
8 200 8 ¾ 3-1/2 40-120
10 250 12
⅞
3-3/4 45-150
12 300 12
⅞
3-3/4 65-200
Limited One Year Warranty:
Flomatic valves are guaranteed against defects of material or workmanship when used for the
services recommended. If, in any recommended service a defect develops due to material or workmanship, and the device is
returned, freight prepaid, to Flomatic Corporation within 12 months from date of purchase, it will be repaired or replaced free of
charge. Flomatic Corporations’ liability shall be limited to our agreement to repair or replacement of valve only.©2017
