Spears TU-3A-0606 Instrucciones De Instalación página 2

Apply primer to the outside of pipe ends in the same manner extending application area to
slightly beyond the insertion depth of the End Connector Socket. Apply a second coat to
both pipe and socket.
REPEAT PRIMER APPLICATION IF NECESSARY.
THE MOST FREQUENT CAUSE OF JOINT FAILURE IS INADEQUATE
PRIMER PENETRATION AND SOFTENING OF BONDING SURFACES
DURING THE WELDING OPERATION. TAKE EXTRA CARE THAT NO
SOLVENTS ARE ALLOWED TO COME IN CONTACT WITH THE BALL OR
OTHER INTERNAL VALVE COMPONENTS.
STEP 5
Solvent Cement must be applied IMMEDIATELY to the primed surfaces before
the primer dries, in an alternating 3-coat application. Using a brush or applicator
no less than 1/2 the pipe diameter, apply a liberal coat of solvent cement to the
primed pipe surfaces. Next, apply a light to medium coat to the End Connector
Socket primed surface. If a "NET FIT" was experienced during the dry fi t check
(See Step 3) then apply an additional liberal coat again to the pipe surface.
STEP 6
Immediately following the
application of solvent cement,
and before it begins to set,
insert the End Connector
Socket over the pipe end, push
with a 1/4 twisting motion to
evenly distribute the solvent
cement within the joint. A full
bead of solvent cement should
form around the circumference
of the joint. Hold joint together
for approximately 30 seconds
to make sure that the End
Connector Socket does not
back off of pipe. Use a cloth
to remove any excess cement
from the exterior juncture of the
pipe and End Connector.
Repeat STEP 6 to attach opposite end connector to
pipe and branch on 3-Way Valves.
Allow joint to cure according to solvent
cement manufacturer's instructions.
Check the penetration and softening
by scraping the primed surfaces. A few
thousandths of the semi-fl uid surface
should easily be removed.
PIPE
UNION NUT
ONE-WAY
MOTION
3
BE SURE THAT THE FACE OF THE END CONNECTOR SOCKET IS
SQUARELY ALIGNED (FLUSH) WITH THE VALVE BODY AND IS FLUSH
AGAINST THE O-RING.
Attach fi nal Union Nut to Valve Body.
DO NOT USE THE REMAINING UNION
NUT TO DRAW TOGETHER ANY GAPS
BETWEEN THE END CONNECTOR AND
THE VALVE BODY.
STEP 8
Pressure test the system only after all solvent cement joints have fully cured.
If any leaks are found at End Connectors during pressure check, use a strap
wrench to tighten Union Nut 1/4 turn to stop the leak.
DO NOT OVER TIGHTEN AS DAMAGE MAY OCCUR
THREADED CONNECTIONS
WARNING: SOME PIPE JOINT COMPOUNDS OR TEFLON
MAY CONTAIN SUBSTANCES THAT COULD CAUSE STRESS CRACKING
TO PLASTIC. TRANSITIONS TO METAL PIPE REQUIRE THOROUGH
CLEANING AND DEGREASING TO REMOVE ANY PIPE THREAD
CUTTING OIL.
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.
STEP 1
Apply Joint Sealant - Threaded connections require application of a quality
grade thread sealant to seal and lubricate the joint assembly. Sealants must
only be applied to male pipe threads.
Please follow the sealant Manufacturers' Application/Installation instructions.
Choice of another appropriate thread sealant is at the discretion of the
installer.
STEP 7
Attach Valve Body to End Connector
Socket and begin to tighten Union Nut.
DO NOT USE ANY TYPE OF THREAD
SEALANT. "HAND TIGHTEN" ONLY.
.
TM
RECOMMENDED SEALANT:
Spears Manufacturing Company highly
®
recommends the use of Spears
thread sealant, which has been
75™
tested for compatibility with Spears
products. Please follow the sealant
Manufacturers' Application/Installation
instructions. Choice of
appropriate thread sealant is at the
discretion of the installer.
4
PASTES
® BLUE
®
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