Viega ManaBloc Product Instructions

Product
Instructions
ManaBloc ¼ Turn Valve Stem Replacement
®
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Viega products are designed to be installed by licensed and trained plumbing and mechanical professionals who are familiar
with Viega products and their installation. Installation by non-professionals may void Viega LLC's warranty.
This document is subject to updates. For the most current Viega technical literature please visit www.viega.us.
Viega LLC • 585 Interlocken Blvd. • Broomfield, CO 80021 • Phone (800) 976-9819 • www.viega.us
PI-PF 560658 1218 ManaBloc Valve Stem Replacement (EN ES FR)
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1. Turn off main water supply and drain system

to a point below valve needing replacement
stem. Unscrew port connection nut from the
port requiring the valve stem replacement as
well as the ports directly above and below.
Pull the fittings and tubing away from the
ports. Be prepared for a small amount of
water to drain from the lines.
2. Slide notched end of the removal tool behind
the port. Align tool on the rib centered under
the tie rod behind the port.
3. Pull removal tool firmly toward valve
body. DO NOT use excessive force. When
positioned properly the valve stem will pop
out of the valve bore.

4. Pull valve stem out and discard.

5. Insert new stem into valve bore ensuring no
debris is present on sealing surfaces. Press
on stem until it snaps into place.
NOTE: Valve stem MUST be installed in the
"OFF" position: left side, arrow up; right
side, arrow down.
6. Replace distribution lines and port nuts.
HAND TIGHTEN ONLY.
7. Turn stem counter clockwise (quarter turn) to
open position. Turn on water supply.
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