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Apply Solvent Cement
STEP 5
to primed surfaces before the primer dries, in an alternating 3-coat application. Using a
brush or applicator size no less than ½ the pipe diameter, apply a liberal coat of solvent
cement to the primed pipe surface, then apply a light to medium coat to the primed
valve socket. If a "net fit" was
experienced during dry fit check
(Step 3), apply an additional coat
again to the pipe surface. BE
SURE TO USE A VERY LIBERAL
AMOUNT OF SOLVENT CEMENT
ON PIPE.
Join Components
- IMMEDIATELY following application of cement and
STEP 6
before it starts to set, insert the pipe into the valve socket with a 1/4 - turn, twisting motion
to evenly distribute cement within the joint. Final position must place valve as designated
"This Side Up." A full bead of cement must form around the circumference of the joint.
Hold joint together for approximately 30 seconds to make sure the pipe does not move
or back out of the socket. Using a cloth, wipe clean all excess cement from the exterior
juncture of the pipe and valve.
Initial Set & Cure Time
STEP 7
accordance with the solvent cement manufacturer's instructions. Pressure test the system
only after all solvent cement joints have fully cured.
THREADED CONNECTIONS
WARNING: SOME PIPE JOINT COMPOUNDS OR TEFLON PASTES 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.
RECOMMENDED SEALANT
: Spears
the use of Spears
BLUE 75™ thread sealant, which has been tested for compatibility
®
with Spears
products. Please follow the sealant Manufacturers' 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 2.5 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.
Assemble Joint by Hand
STEP 2
Threaded pipe and valves or fittings must be initially
assembled "finger tight" (just enough to fully engage
thread clearance.
- Solvent cement must be applied IMMEDIATELY
PIPE
- Initial Set & Cure Time must be followed in
Manufacturing Company highly recommends
®
Apply Joint Sealant
STEP 1
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.
3
Wrench Make-Up
STEP 3
plastic pipe and valve components must always
be installed using commercially available
strap wrenches. Do not use conventional pipe
wrenches which can damage plastic piping
materials.
Apply wrench make-up of no more than one to two turns beyond finger tight thread
engagement. Care must be taken in final positioning so as to avoid the need to "back-up"
SOCKET
the wrenched assembly.
True Union type ball valves use removable end connectors. To avoid problems, NEVER
ASSEMBLE THE JOINT TO THE END CONNECTORS WHILE THEY ARE ATTACHED
TO THE VALVE CARTRIDGE.
1. Union Nut
LUBRICATION WARNING: Some Lubricants, including vegetable oils, are known
to cause stress cracking in thermoplastic materials. Formulation changes by
lubricant manufacturers may alter compatibility of previously acceptable materials and
are beyond our control. Lubricants are not required for installation of valves.
Pipe Preparation
STEP 1
Remove Union Nuts (1) and End
STEP 2
Connectors (2) from the Valve Body (3). Wipe away
all loose dirt & moisture from the pipes & components
with a clean dry cloth. Slide Union Nuts (1) over pipe
ends where each End Connector Socket is to be
installed, being sure that the Union Nut threads will be
facing the Valve body.
-
Check the Joint Interference fit between the pipe and the End Connector
STEP 3
Socket. An Interference Fit is necessary for proper fusion of the joint. To check, lightly insert
the End Connector Socket over the prepared pipe ends. DO NOT FORCE THE SOCKET
ONTO THE PIPE.
Interference must occur between 1/2 the Socket depth (FULL INTERFERENCE) and
the Socket bottom (NET FIT). Do not use components which do not properly mate.
Make sure that the face of each End Connector Socket is at a square 90°
angle with the pipe end.
End Connector O-rings must be free of any signs of dirt & debris. Clean as necessary. If
O-rings must be removed, clean all surfaces and re-install by pressing the O-ring evenly
into its retaining groove, being sure to avoid any wrinkles or creation of an uneven sealing
surface.
- Threaded
TRUE UNION CONNECTIONS
SPECIAL INSTALLATION INFORMATION
2. End Connector
3. Check Valve Body
4. Typical Valve Support
- See STEP 1, Sovent Cement Welded Joints.
Union Nut threads face Valve Body
4
Slide Union Nut onto pipe FIRST
PIPE
Valve Body
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