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Kennedy Valve    www.kennedyvalve.com    800-782-5831    607-734-2211    [email protected]    3/22

UL-FM

RESILIENT SEATED

GATE VALVE

KS-FW, KS-RW, KS-RWHP, Model 2638

INSTALLATION &

OPERATION MANUAL

TABLE OF CONTENTS

Introduction   . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiving & Storage   . . . . . . . . . . . . . . . . . . .
Installation    . . . . . . . . . . . . . . . . . . . . . . . . . . 
Operation    . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting      . . . . . . . . . . . . . . . . . . . . .
Maintenance    . . . . . . . . . . . . . . . . . . . . . . . . .
Stem Seal Procedure     . . . . . . . . . . . . . . . . . .
Packing Details   . . . . . . . . . . . . . . . . . . . . . . . 
KVOS-2 Switch Procedures    . . . . . . . . . . . . .
Tamper Switch Procedures      . . . . . . . . . . . . .
Parts & Service     . . . . . . . . . . . . . . . . . . . . . . 
Drawings     . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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Summary of Contents for 2638

Page 1: ... GATE VALVE KS FW KS RW KS RWHP Model 2638 INSTALLATION OPERATION MANUAL TABLE OF CONTENTS Introduction Receiving Storage Installation Operation Troubleshooting Maintenance Stem Seal Procedure Packing Details KVOS 2 Switch Procedures Tamper Switch Procedures Parts Service Drawings PAGE 2 2 2 3 3 3 4 6 6 8 9 10 ...

Page 2: ... storage to prevent cracking of the valve casting and deterioration of the resilient seated EPDM WARNING Installation of valves should be performed by experienced installers Valves should never be used as structural supports and movement into place Valves are heavy and may include accessories or bolt on pieces which should be handled with caution NOTE BEFORE INSTALLING THE VALVE 1 Wipe away any di...

Page 3: ...KS RW C515 Size No of Turns 2 6 1 2 2 1 2 8 3 10 4 13 1 2 6 19 1 2 8 25 1 2 10 31 1 2 12 37 3 4 14 52 16 52 18 64 20 64 24 76 2TPI Stem Threads OPERATION 3 PROBLEM CAUSE SOLUTION Joint leakage Bolt tension relaxing Tighten bolts Foreign material caught in seat Operate valve to flush out debris Seat leakage Seat is dirty corroded Flush or disassemble clean Seat is damaged Inspect repair or replace ...

Page 4: ...kage stops Exchange the threaded rods for the actual packing gland bolts nuts one side and then the other 6 Reinstall the packing gland bolts and nuts tightening the nuts uniformly one side then the other so that the packing gland pulls down evenly Tighten the nuts until all leakage past the packing stops Operate the valve through several complete open close cycles to check for stem binding and to...

Page 5: ...ighten two bolts diagonally opposite with wrist torque Then go to another bolt opposite the first two and tighten Then work around the bolt pattern tightening the bolts 9 Operate the valve fully open to fully close before backfilling 5 OS Y PACKING GLAND REPLACEMENT PROCEDURE 1 Remove the packing gland fasteners 2 Remove the cap bonnet fasteners 3 Rotate the hand wheel in valve closing direction T...

Page 6: ... switch does not signal properly upon valve install b The switch must be rotated for fitment in a valve pipel moving the switch travel out of the preset valve limits Background KVOS 2 switches for use on KS RW and KS FW OS Y Gate V Limitations Valve installation and wiring procedure are subject to local state electrical and sprinkler codes and not covered by this standard Tools Megohmmeter 9 16 So...

Page 7: ...ction until continuity is lost on the brown yellow circuit Counteract rotation of the nut with a 9 16 open wrench 3 Close the valve and verify that the circuit gains continuity as in step 3 of section 2a 4 Repeat steps 1 3 with yellow orange striped wire and brown orange striped wire This checks the function of the secondary switch If both switches function as shown in figures 3 and 6 the switch f...

Page 8: ...RENCH 3 REMOVE HANDWHEEL 4 SCREW SWITCH UNIT INTO TAPPED HOLE UNTIL BUSHING IS FLUSH WITH THE INSIDE OF THE YOKE 5 TIGHTEN NUT AGAINST YOKE WITH AN OPEN END WRENCH TO 50 FTLBS MIN 6 RE INSTALL HANDWHEEL 7 OPEN VALVE UNTIL TRIP ARM IS HALFWAY INTO THE GROOVE 8 REMOVE SECURITY PLUG 9 USING 9 16 SOCKET WITH EXTENSION BACK OFF ADJUSTMENT NUT UNTIL IT DEPRESSES SWITCH TAB COUNTERACT ROTATION OF THE TRI...

Page 9: ...S FIELD ROTATION OF TAMPER SWITCH LOOSEN THE NUT AGAINST THE YOKE WITH A 1 3 4 OPEN END WRENCH 1 ROTATE THE SWITCH TO THE DESIRED POSITION TIGHTEN THE NUT 2 PERFORM STEPS 7 10 FROM THE ABOVE PROCEDURE FIELD INSTALLATION TO ENSURE SWITCH FUNCTION 3 NEMA 4X ISSUE DRAWING BY DATE 32451 02 JEB 8 21 17 ISSUE DRAWING BY DATE 32451 02 JEB 8 21 17 KENNEDY VALVE DIVISION OF MCWANE INC USA MADE IN MADE IN U...

Page 10: ...2 304SS ASTM A276 S30400 316SS ASTM A276 S31600 SILICON BRONZE A EVERDUR ASTM B98 C65500 14 24 17 HEX CAP SCREW ZN A307 GRADE B ASTM F593 S30400 S31600 18 HEX NUT ZN A307 GRADE B ASTM F593 S30400 S31600 19 FLAT WASHER ZN A307 GRADE B ASTM F593 S30400 S31600 20 COVER DUCTILE IRON ASTM A536 70 50 05 2 12 DUCTILE IRON ASTM A536 65 45 12 14 24 21 COVER O RING BUNA N ASTM D2000 2 12 EPDM 14 24 22 STEM ...

Page 11: ... 20 DELRIN 11 EXTENSION 18 24 Ductile Iron ASTM A536 70 50 05 12 STUFFING BOX 2 16 Ductile Iron ASTM A536 70 50 05 13 THRUST WASHER DELRIN 14 PIPE PLUG 14 24 18 8SS 15 TRACK 24 AL BRONZE ASTM B148 C95400 16 ROLLER 24 COPPER ALLOY ASTM B584 C95400 17 PIN 24 316 STAINLESS STEEL 18 SCRAPER 24 COPPER ALLOY ASTM B584 C95400 19 SQUARE KEY 18 24 GR 2 ZN SAE J429 20 O RING EPDM 21 STEM MANGANESE BRONZE AS...

Page 12: ...ennedy Valve Co CO ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF KENNEDY VALVE CO IS PROHIBITED DESIGN INVENTION RIGHTS RESERVED PROPRIETARY AND CONFIDENTIAL FINISH DRAWN CHECKED APPROVED DATE NAME Kennedy Valve Co TITLE SIZE B DWG NO UNLESS OTHERWISE SPECIFIED ZF JB 11 19 20 11 10 20 2 24 RSGV NRS FLG X FLG SHEET 1 OF 1 33095 125 RMS 1 DRAFT 2 RADII 1 8 18 UP 1 8 12 18 ...

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