31
I-800
Transition to Other Materials
Specifically designed female threaded adapters, grooved coupling
adapters, and flanges are UL Listed for connecting a Victaulic FireLock
CPVC Sprinkler System to other materials, valves, and accessories. A
special, reinforced female threaded adapter is available for connection to
the sprinkler.
Flange Connections
When using Victaulic supplied Spears
®
CPVC flange adapters, follow the
instructions below. Piping runs joined to the flanges must be installed in a
straight line in relation to the flange to avoid stress at the flange due to
misalignment. In addition, piping must be secured and supported to pre-
vent lateral movement, which can create stress and damage the flange.
FLANGE MAKEUP:
Once a flange is joined to the pipe, the method for
joining two flanges is as follows:
A.
With the gasket in place, align the bolt holes of the mating flanges
by rotating the ring into position.
B.
Insert all bolts, flat washers (place one washer under the bolt head
and one under the nut), and nuts. NOTE: Victaulic does not supply bolts,
nuts, washers, and gaskets.
C.
Make sure the faces of the mating surfaces are flush against the
gasket before bolting down the flanges.
D.
Tighten the nuts by hand until they are snug. Establish uniform pres-
sure over the flange face by tightening the nuts in 5 ft-lb increments,
according to the sequence shown below in Figure 1.
E.
Care must be taken to avoid bending the flange when joining a stan-
dard flange to a “raised face” flange or a wafer-style valve.
NOTICE
• Consideration should be given to aligning the one-piece flange before joining it with
the pipe.
CAUTION
• DO NOT use the bolts to bring together improperly mated flanges.
• DO NOT over-torque the flange. Too much torque will damage the flange.
• Make sure the proper lubricant is used on the bolts, and insert one flat washer under
the bolt head and one under the nut.
Failure to follow this instruction could result in property damage, product damage, joint
leakage, and/or joint failure.
1
2
3
4
Figure 1
I-800 2755 Rev_I.fm Page 31 Tuesday, September 13, 2005 8:46 AM
