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Crane Duo-Chek, Operation Manual, Page: 2 / 6

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Crane Duo-Chek Operation Manual Download Page 2

Please read the warning and caution 

statements on pg 2 prior to installation.

2

www.cranecpe.com

Index

Installation and Maintenance

                     

   

               Page 3

Assembly

                     

   

               Page 4

Parts

                     

   

               Page  5

WARNING

Proper installation plays an important role in valves performance. Installation must be performed 

-

result in damage to the valve.

!

CAUTION

READ INSTRUCTIONS BEFORE INSTALLATION or valve service. Failure to follow instructions could 
result in death or serious injury. If there is any question, contact the factory at 936-271-6500.

!

www.authorizedparts.com

www.authorizedparts.com

Summary of Contents for Duo-Chek

Page 1: ...brands you trust Duo Chek Check Valves Installation and Operation Manual www cranecpe com Duo Chek Check Valves www authorizedparts com www authorizedparts com ...

Page 2: ...ING Proper installation plays an important role in valves performance Installation must be performed result in damage to the valve CAUTION READ INSTRUCTIONS BEFORE INSTALLATION or valve service Failure to follow instructions could result in death or serious injury If there is any question contact the factory at 936 271 6500 www authorizedparts com www authorizedparts com ...

Page 3: ...cating direction of flow should coincide with line flow Install studs through companion flanges and tighten using standard industry prac tice 6 In liquid service we recommend valve be installed at least five 5 pipe diameters downstream from a pump discharge and or other pipe fittings for maximum service life Consult factory MAINTENANCE Make sure the valve is not under pressure before starting any ...

Page 4: ...d on valves 6 and larger other longer leg to contact plate On smaller valves spring s 5 without short leg wind spring legs 180 install with legs contacting each plate and hold to insert hinge pin 4 in step 6 5 Insert all bearings provided 8 9 and 10 6 Insert hinge pin 4 through plate lugs 2 bearings 8 9 10 and through spring coils 5 7 Pull stop pin leg of spring short hooked leg toward plate leg a...

Page 5: ...Pin 4 1 Hinge Pin 5 2 Spring 6 2 Stop Pin Retainer 7 2 Hinge Pin Retainer 8 4 Plate Lug Bearing 9 4 Body Lug Bearing 10 3 Spring Bearing 11 2 Support Sleeve 10 10 1 3 6 7 4 8 11 9 5 5 2 Some valves require 4 springs 5 spring bearings These quantities may vary according to the valve size Not required on valves smaller than 24 www authorizedparts com www authorizedparts com ...

Page 6: ...ration can be made without changes being necessary in specifications already agreed All trademarks in this material are property of the Crane Co or its subsidiaries The Crane and Crane brands logotype in alphabetical order ALOYCO CENTER LINE COMPAC NOZ CRANE DEPA DUO CHEK ELRO FLOWSEAL JENKINS KROMBACH NOZ CHEK PACIFICVALVES RESISTOFLEX REVO SAUNDERS STOCK HAM TRIANGLE UNI CHEK WTA and XOMOX are r...

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