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DCV 2½”- 10”

DCV 2½”- 10”. Modification Overview. Production for the DCV in sizes 2½ - 10” began in 1993 and is current. Single Access Cover Removal. The cover has no spring load and is o-ring sealed. Remove bolts and lift cover off. Check Valve Removal.

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DCV 2½”- 10”

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  1. DCV2½”- 10”

  2. Modification Overview • Production for the DCV in sizes 2½ - 10” began in 1993 and is current.

  3. Single Access Cover Removal • The cover has no spring load and is o-ring sealed. • Remove bolts and lift cover off.

  4. Check Valve Removal • Modules are o-ring sealed and secured by spring clips. • Pinch together the exposed ends of the clip and pull away from module. ** Use adjustable pliers if necessary.

  5. Check Valve Removal • Once the spring clips are removed, the modules can be pulled straight out of body. • #1 check must be removed before #2 can be removed.

  6. Disassemble Check Valve • 21/2”-3” sizes springs are not captured. • 4”-8” spring tension is captured. • Unscrew check valve stem from disc holder. • Place a wrench on the spring retainer and a wrench on the disc holder.

  7. Disassemble Check Valve • Loctite is used on the threads of the stem and disc holder. • Sometimes an impact or much force is needed to break this free.

  8. Check Disc Replacement • Once check module is disassembled, the disc holder, retainer, and disc are free. • Reassemble in reverse order.

  9. Check Seat Removal • The check seat is part of the module and should not be removed. • If the seat is damaged, the entire module must be replaced.

  10. Check Valve Reassembly Notes • Lubricate o-rings. • Push checks into the body. • Replace spring clips in reverse order.

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