RPZ-II, RPZE-II ½” , ¾” , 1½”.

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Presentation transcript:

RPZ-II, RPZE-II ½” , ¾” , 1½”

Modification Overview Production of the RPZ II began in 1996 for the ½” and ¾” sizes. The 1½” size was introduced in 2000. The body is smaller in size than the original version and the parts do not interchange. The lead free version (RPZE II) was introduced in 2002 and is current.

Single Access Cover Removal The cover is spring loaded and sealed by the diaphragm. ** Hold cover firmly while removing bolts.

Single Access Cover Removal Lift cover straight off. Remove RV stem assembly and spring from body.

Check Valve Removal Check valve modules. 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.

Check Valve Removal Once the spring clips are removed, the modules can be pulled straight out of the body. Check valves can be removed in any order.

Disassemble Check Valve Check modules are spring loaded. Holding the module firmly, unscrew the stem from the disc holder. Place a wrench on the spring retainer and a wrench on the disc holder.

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

Check Seat Removal The check seat is part of the module. If the seat is damaged, the entire module must be replaced.

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

RV Stem Removal The RV stem and spring are situated between the check valves and are free once the single access cover is removed.

RV Seat Removal Unless damaged there is no need to remove the seat. The seat is pushed firmly into the body and is o-ring sealed.

RV Diaphragm Replacement The diaphragm is located on the upper stem. Unscrew the RV piston from the stem. Reassemble in reverse order.

RV Disc Replacement The RV disc is located on the lower stem. Unscrew the disc retainer from the RV stem. Reassemble in reverse order.

RV Reassembly Notes Center the spring over the RV seat. Position the RV stem into the body. Lubricate plunger o-ring.

Single Access Reassembly Notes Make sure the diaphragm does not block the test cock ports in the body. ** Place lid bolts in cover to help align the diaphragm correctly.