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STEP 3
Tighten Bolts - Establish a uniform pressure over the fl ange face by
tightening the bolts in 5 ft. lbs. increments following a 180° opposing
sequence as shown in the table above. Care must be taken to avoid
"BENDING" the fl ange when joining a Spears fl ange together.
Flange
Size
(in.)
1/2 - 1-1/2
2 - 4
DO NOT USE BOLTS TO BRING TOGETHER
IMPROPERLY MATED FLANGES.
Recommended
Torque
(ft. lbs.)
12
25
5
PRECAUTIONS AND WARNINGS
CAUTION: The system must be designed and installed so as not to pull the
components in any direction. Pipe system must be cut and installed in such
a manner as to avoid all stress loads associated with bending, pulling, or
shifting. All piping systems must be supported.
CAUTION: BEFORE THE VALVE IS CYCLED, all dirt, sand, grit or other
material shall be fl ushed from the system. This is to prevent scarring of
internal components; e.g. ball, cup, wedge, seats, etc.
WARNING: System should not be operated or fl ushed out at fl ow velocities
greater than 5 feet per second.
NOT FOR USE WITH COMPRESSED AIR OR GAS
WARNING: Do not use compressed air or gas to test any PVC or CPVC
thermoplastic piping product or system, and do not use devices propelled
by compressed air or gas to clear the systems. These practices may result
in explosive fragmentation of system piping and components causing
bodily injury or death.
All air must be bled from the system during the initial fl uid fi ll. Pressure
testing of the system must not be made until all solvent cement joints have
properly cured. Initial pressure testing must be made at approximately 10%
of the system hydrostatic pressure rating to identify potential problems prior
to testing at higher pressures.
SPEARS
®
15853 Olden Street, Sylmar, CA 91342
PO Box 9203, Sylmar, CA 91392
(818) 364-1611 • www.spearsmfg.com
© Copyright 2008 Spears
Manufacturing Company. All Rights Reserved.
®
Printed in the United States of America 07/08.
MANUFACTURING COMPANY
CORPORATE OFFICE
YV-3A-1001
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