DeZurik KLS User Manual Download Page 3

1.  Relieve the pressure in the pipeline and close the valve. 

 

2.  Remove  the valve from the system. 
3.  Remove the two screws and nuts near the top of the gate and disengage 

the stem from the gate. 

4.  Remove the actuator yoke and actuator from the valve. 
5.  Remove the gland nuts, washers, and packing gland. 
6.  Remove the gate from the body. 
7.  Remove the packing from the packing chamber. 
8.  Push the top of the resilient seat toward the center of the valve, and remove 

the seat through the packing chamber. 

9.  Reversing step 8, insert the new seat through the packing chamber and be-

hind the lug at the 6 o‘clock position in the body. Then push the top of the 
seat into position. 

10. Replace the gate in the body, with the beveled edge facing away from the 

resilient seat. Place the gate in the fully closed position. 

11. Replace the packing, as described in step 6 in the PACKING REPLACE-

MENT section. 

12. Replace the packing gland, washers, and nuts. Tighten the nuts evenly and 

finger tight, plus 1/2 turn. 

13. Replace the yoke and actuator on the valve. 
14. Reconnect the stem to the gate with the two screws and locknuts. 
15. Replace the valve in the system. Refer to the requirements in the INSTAL-

LATION section. If packing leakage occurs, tighten the adjustment nuts on 
top of the packing gland. Tighten the nuts evenly and slowly, just enough to 
stop the leakage. Over tightening will cause excessive operating forces, and 
will decrease the life of the packing. 

D10107 

     Page 

3     

 

 

 

 

 

 

 

 

August 

2009 

Seat 

Replacement 

DeZURIK 

3” Level Sensor Knife Gate Valve 

WARNING! 
Pipeline pressure can propel the loose flange bolts and 
flanges, and can cause personal injury or equipment dam-
age. Relieve pipeline pressure before removing flange bolts 
and flanges.

 

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