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Installation, Operation and
Maintenance Manual

IOM-A-Deringer 20/20X/30/30X_6-8

Deringer

™

20/20X/30/30X

Double Check Valve/Double

Check Detector Assemblies

Size: 20/30: 6"&8"

20X/30X: 4"&6"

WARNING

Read this manual BEFORE using this equipment.
Failure to read and follow all safety and use information can

result in death, serious personal injury, property damage, or

damage to the equipment.
Keep this manual for future reference.

You are required to consult the local building and plumbing

codes prior to installation. If the information in this manual

is not consistent with local building or plumbing codes,

the local codes should be followed. Inquire with governing

authorities for additional local requirements.

WARNING

Содержание AMES Deringer 20X

Страница 1: ...follow all safety and use information can result in death serious personal injury property damage or damage to the equipment Keep this manual for future reference You are required to consult the loca...

Страница 2: ...ion Other versions of the same tool can be used For example allen wrenches instead of allen drive sockets Tools Required 15 16 Socket 11 8 Socket Wood Block 2 x 4 x 5 Wood Block 1 x 2 x 16 2 Phillips...

Страница 3: ...wrench open main test cock number 3 5 Deringer 30 30X only Using a 2 flathead screwdriver open bypass test cock number 1 6 Using the Deringer test cock wrench or a small adjustable wrench open main te...

Страница 4: ...il the ends of the bolts are flush with the inner wall of the valve body B 2 Insert a flathead screwdriver between the inner valve body and the first check module flange C gently push the first check...

Страница 5: ...amage or fouling to the sealing seat Do not remove unless the seat cage is being replaced 6 Reverse the order of above instructions to reassemble bypass check valve A Part 2 1 To replace a damaged red...

Страница 6: ...to reinstall bypass meter Remember to install gaskets F before threading meter coupling nuts into place C E E F E FLOW A D B G Maintenance of First Dual action Check Module 1 Use a 2 phillips head scr...

Страница 7: ...ing or damage 3 Should elastomer disk D need replacement unscrew disk retainer screws F and remove disk retainer G Carefully remove and replace elastomer disk D When replacing elastomer disk D be cert...

Страница 8: ...backside of the second check seat ring G Using a 1 x4 piece of wood cut to 16 length H as a lever between access port wall the 2 x4 F gently move the second check module A into its fully seated posit...

Страница 9: ...by hand 2 Alternatively using a piece of 1 x4 wood cut to 16 length F as a lever between the second check seat G and the first check towers C push the first check module A into its fully seated positi...

Страница 10: ...om one side of the valve to the other A B F C E G D Close Test Cocks and Double Check All Closing Sealing Mechanisms 1 Using the Deringer test cock wrench or a small adjustable wrench close main test...

Страница 11: ...counter clockwise to the open position Shutoff valve is open when yellow orange position indicator flags are parallel to the mainline water flow 2 Slowly rotate the number 2 shutoff valve operation ha...

Страница 12: ...anty shall be invalidated by any abuse misuse misapplication improper installation or improper maintenance or alteration of the product Some States do not allow limitations on how long an implied warr...