Victaulic 751 FireLock Series User Manual

3. Remove the seal-retaining ring.
CAUTION
• Use only Victaulic-supplied replacement parts.
Failure to follow this instruction could cause improper valve opera-
tion, resulting in property damage.
4. Remove the solid clapper seal from the clapper. Inspect the seal.
If the solid clapper seal is torn or worn, replace it with a new,
Victaulic-supplied solid clapper seal.
5. Remove any contaminants, dirt, and mineral deposits from the
clapper. Make sure the sealing surface area is clean, dry, and
free of foreign material. If the clapper shows any signs of damage,
replace it with a new, Victaulic-supplied clapper.
6. Install the solid clapper seal into the clapper. Make sure the seal-
ing lip is pointing upward.
7. Place the seal-retaining ring (flat side down) onto the solid clapper
seal.
8. Install the seal-assembly bolt/bolt seal through the seal-retaining
ring and the clapper. Tighten the seal-assembly bolt/bolt seal to
8 N•m.
9. Replace the cover plate by following the "Installing the Cover Plate
Gasket and Cover Plate" section.
10. Place the system back in service by following the "Placing the
System in Service" section.
I-751.VDS / Series 751 FireLock
™
European Alarm Check Valve Stations / Installation, Maintenance, and Testing Manual
I-751.VDS_15REV_F

Victaulic 751 FireLock Series Specifications

General

Brand	Victaulic
Model	751 FireLock Series
Category	Control Unit
Language	English