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KEYSTONE

 FIGURE PCS17 KNIFE GATE VALVES

INSTRUCTION, OPERATION AND MAINTENANCE MANUAL

HANDWHEEL OR BEVEL GEAR OPERATED 
VALVES

A.  Equipment orientation: Valves may be 

stored in the vertical or horizontal position.

B.  Preparation for storage: Valves may be stored 

as shipped, provided the above storage facility 
and equipment orientation instructions above 
are followed. If valve packaging is altered or 
removed for receiving inspection, repackage 
valve as originally received.

C.  Storage inspection: Visual inspection shall 

be performed on a semiannual basis and 
results recorded. Inspection as a minimum 
shall include reviewing the following:

 Packaging
  Flange covers
 Dryness
 Cleanliness
D.  Maintenance: Maintenance shall consist 

of correcting deficiencies noted during 
inspection. All maintenance shall be 
recorded. Contact factory prior to 
performing any maintenance if valve is still 
covered under warranty.

CYLINDER OPERATED VALVES

A.  Equipment orientation: The preferred 

orientation for optimum protection is with 
the valve fully opened and the cylinder in the 
vertical position. This position gives the best 
support to the cylinder rod and helps reduces 
the chance of a “flat spot” developing on 
the cylinder seals. An acceptable alternate 
position for valves with cylinder diameters of 
less than 150 mm (6") is with the cylinder in 
the horizontal position.

B.  Preparation for storage: Valves may be stored 

as shipped, provided the above storage facility 
and equipment orientation instructions above 
are followed. If valve packaging is altered or 
removed for receiving inspection, repackage 
valve as originally received.

C.  Cylinder storage: These cylinder storage 

instructions are not intended to replace 
the instructions of the specific cylinder 
manufacturer and are to be used as a guide 
only. If specific instructions are required, 
please contact our office. For storage of 
up to 3 years; Squirt a high quality grade of 
hydraulic oil or synthetic lubricant into the 
cylinder ports and operate cylinder 6-12 times 
on a yearly basis. For storage 3-5 years; 
Lubricate as above. Additionally, extend 
cylinder rod until the valve is fully closed. Coat 
cylinder rod with high quality heavy grease or 
synthetic lubricant. Retract cylinder rod until 
valve is fully open, drawing lubricant into rod 
end of cylinder. Securely plug cylinder ports 
with pipe plugs, if cylinder is not prepiped to 
control accessories. If cylinder is prepiped to 
accessories, plug all input and output ports of 
accessories.

D.  Storage inspection: Visual inspection shall 

be performed on a semiannual basis and 
results recorded. Inspection as a minimum 
shall include reviewing the following:

  - Packaging
  - Flange covers
  - Dryness
  - Cleanliness
E.  Maintenance: Maintenance shall consist 

of correcting deficiencies noted during 
inspection. All maintenance shall be 
recorded. Contact factory prior to 
performing any maintenance if valve is still 
covered under warranty.

Summary of Contents for KEYSTONE FIGURE PCS17

Page 1: ...0 is per MSS SP44 with the face to face per MSS SP81 The bolt holes in the chest or upper flange area are blind tapped see Figure 2 2017 Emerson All Rights Reserved Emerson com FinalControl VCIOM 02874 EN 19 05 NOTES 1 All knife gate valves are designed and manufactured to be installed in applications where no more than 1g 0 04 oz of force In excess of gravity is applied to the valve in any direct...

Page 2: ...el may be too hot to handle take reasonable preCautions Severe temperature applications may require optional insulation the valves to protect operators from the heat TABLE A MAX FLANGE BOLT TORQUE Bolt size Torque Imperial Metric lb ft Nm NOTE Body can be deformed or fractured if flange bolting is too long or overtorqued KEYSTONE FIGURE PCS17 KNIFE GATE VALVES INSTRUCTION OPERATION AND MAINTENANCE...

Page 3: ... 21 25 4 1 8 412 75 16 25 76 2 3 533 4 21 TBL D 470 12 525 M24 438 76 2 533 4 TBL E 470 12 525 M24 438 76 2 533 4 400 16 SP 81 539 75 21 25 16 596 9 23 5 25 4 1 8 469 9 18 5 88 9 3 5 596 9 23 5 TBL D 521 12 580 M24 489 88 9 596 9 TBL E 521 12 580 M24 489 88 9 596 9 450 18 SP 81 577 85 22 75 16 635 25 28 575 1 7 533 4 21 88 9 3 5 641 4 25 25 TBL D 584 12 640 M24 532 88 9 641 4 TBL E 584 16 640 M24 ...

Page 4: ...cking gland tighten the packing gland bolts being careful not to overstress the bolting If the valve requires repacking you may use any standard square braided packing as suitable for your service See additional instructions for repacking on page 5 5 If possible stroke the valve through the full open and closed position to make sure it is functioning properly KEYSTONE FIGURE PCS17 KNIFE GATE VALVE...

Page 5: ...cking all around the gate one row at a time 2 Tamp packing into packing box even and flat using flat bar or other suitable tool 3 Add next row alternating sides of the gate where the ends of the packing meet against each other Ends of packing must not line up If they do premature leakage could occur Complete by adding the number of rows required Figure 8 Prepare valve 1 Relieve pressure on valve o...

Page 6: ...ate from valve lifter by removing gate bolts 6 Remove top plate hex nuts and washers from four post yoke 7 Pull entire actuator assembly up and away from valve set aside 8 Pull gate from valve body examine gate for flatness and damage replace if necessary 9 Thoroughly remove old packing 10 Remove seat Note to remove seat it will be necessary to slip a pry tool through the gate slot in the packing ...

Page 7: ...bar Seat should be firmly seated inseat channel at this time 5 Insert gate into packing box radiused end first pushing it straight down through the packing support bar and into valve throat as far as possible by hand Figure 12 6 Repack valve see Page 5 for instructions do not fully tighten 7 Reassemble actuator assembly aligning top plate with four post yoke and aligning gate bolt holes with valve...

Page 8: ...UNTING Cylinders require additional support when mounted in the other than vertical position Failure to do so could lead to premature failure of cylinder and or valve The following illustrations are suggestions specific details will have to be determined by customer so support best suits surrounding area It is important that the cylinder gate alignment be maintained during valve operation Supports...

Page 9: ...be shipped with the thrust spindle nut installed in the bevel gear 2 Place the adapter plate over the 4 Post yoke legs aligning the holes Figure 14 3 Attach nuts onto 4 post yoke legs securing the top plate into position 4 Apply standard bearing grease onto to exposed spindle thread Use material which meets ASTM 4950 GBLB 5 Slip the bevel gear over the spindle nut engaging the threads Rotate the h...

Page 10: ...ockout options are available on all valves The following are the factory s recommendations for storage procedures to retain maximum product integrity during long term storage of 1 to 5 years The shelf life listed is a guideline and is not a substitute for examination of cured material at the time of intended use To maintain shelf life spare seats should be stored in accordance with the following 1...

Page 11: ...B Preparation for storage Valves may be stored as shipped provided the above storage facility and equipment orientation instructions above are followed If valve packaging is altered or removed for receiving inspection repackage valve as originally received C Cylinder storage These cylinder storage instructions are not intended to replace the instructions of the specific cylinder manufacturer and a...

Page 12: ...son logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or the...

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