DeZurik KGC-MC Manual de instrucciones - Página 7
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DeZURIK
KGC-MC METAL CUTTING KNIFE GATE VALVES
Installation
continued
Note: The packing gland is slightly loosened prior to shipping. This is done to increase the life of the
packing during extended storage.
After installing the valve, pressurize pipeline and ensure the packing is not leaking. If the packing leaks,
adjust the packing as described below.
Operation
The gate in the valve is positioned by the valve actuator. The actuator moves the gate over the valve port
in the closed position, and withdraws the gate from the port in the open position. Refer to the Actuator
Instructions for adjustment and maintenance requirements for the actuator.
Lubrication
The valve does not require lubrication. If applicable, ensure that valve threaded stems are maintained
with proper lubrication. Refer to the Actuator Instructions for lubrication requirements for the actuator.
Packing
The gate packing is contained and compressed by the packing gland. See Figure 4 for component
identification.
Adjustment
If packing leaks, tighten the adjustment nuts on top of the packing gland. Tighten the nuts equally and
gently just enough to stop the leak. Over tightening will cause excessive operating forces, and will
decrease the life of the packing.
November 2020
Page 7
D11060