Idiomas disponibles
Idiomas disponibles
THREADED CONNECTION
WARNING: SOME PIPE JOINT COMPOUNDS OR TEFLON PASTES MAY CONTAIN
SUBSTANCES THAT COULD CAUSE STRESS CRACKING IN PLASTIC. TRANSITIONS
TO METAL PIPE REQUIRE THOROUGH CLEANING AND DEGREASING TO REMOVE
ANY PIPE THREAD CUTTING OIL.
RECOMMENDED SEALANT:
®
Spears
Manufacturing Company highly recommends the use of Spears
BLUE 75™ thread sealant, which has been tested for compatibility with
Spears
®
products. Please follow the sealant Manufacturer's Application/
Installation instructions. Choice of another appropriate thread sealant is at
the discretion of the installer.
IF A TAPE SEALANT IS USED:
1.
Use TFE tape no less than
25 mil thick.
2.
Initial wrap must fully cover
the thread end.
3.
Wrap clockwise with standard
pipe threads.
4.
Use only 2-3 wraps of tape.
Apply Joint Sealant - Threaded connections require application
STEP 1
of a quality grade thread sealant to seal and lubricate joint assembly. Sealant
must be applied to male pipe threads.
STEP 2
Assemble Joint by Hand - Threaded pipe and valves must
be initially assembled "fi nger tight" (just enough to fully engage thread
clearance).
FLANGED CONNECTIONS
Gate Valve Body
Full faced, 1/8"
Elastomer Gasket
Connecting Pipe
Bolt, Washers, Nut
5
Use full faced, 1/8" thick gaskets of a material suitable for the intended
application having a Shore "A" durometer of approximately 60. Use of well
lubricated bolts and fl at washers is required. Bolts must be tightened in a
180° opposing pattern. The recommended torques are 12 ft. lbs. for 1/2" - 1-
1/2" sizes, and 25 ft. lbs. for 2" - 4" sizes.
®
PRECAUTIONS AND WARNINGS
FOR ALL VALVE INSTALLATIONS
CAUTION:
The system must be designed and installed so as not to pull the
valve in any direction. Pipe must be cut and installed in such a manner as
to avoid all stress loads associated with bending, pulling, or shifting. Valve
must be supported.
CAUTION:
BEFORE THE VALVE IS CYCLED, all dirt, sand, grit or other
material must be fl ushed from the system. This is to prevent scarring of
internal components; e.g., ball, cup, wedge, seats, etc.
WARNING:
SOME LUBRICANTS, INCLUDING VEGETABLE OILS, ARE
KNOWN TO CAUSE STRESS CRACKING IN THERMOPLASTIC MATERIALS.
A mild soap solution or commercially available pipe gasket lubricant suitable
for PVC and CPVC is recommended for use where lubrication is needed for
installation or maintenance service. Choice of lubricant is at the discretion of
the installer.
WARNING:
Systems must 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 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 initial fluid fill. 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.
© Copyright 2008 Spears
Printed in the United States of America 05/08.
BOLT TORQUES
Valve Size
1/2" to 1-1/2"
2" to 4"
6" Venturied
.
SPEARS
MANUFACTURING COMPANY
®
CORPORATE OFFICE
15853 Olden Street, Sylmar, CA 91342
PO Box 9203, Sylmar, CA 91392
(818) 364-1611 • www.spearsmfg.com
Manufacturing Company. All Rights Reserved.
®
6
Torque Value
12 ft. lbs.
25 ft. lbs.
40 ft. lbs.
GV-3A-1006
