Spears TU-3A-0606 Instrucciones De Instalación

True Union Ball, Ball Check & 3-Way
Ball Valve Installation Instructions
SPECIAL INSTALLATION INFORMATION
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.
Check Valves may be installed in either horizontal or vertical position with a
minimum of 10 pipe diameters from any pump or other source of turbulence.
Check valves MUST be installed with the valve's "FLOW" arrow pointing in the
direction of fl ow.
Vented Ball Valves: (special ordered "Bleach Valve") Install valve with ball vent-
hole on the pressure (upstream) side when in closed position.
3-Way Ball Valves: Diverter valve, no branch seal-off.
IMPORTANT: Read Precautions & Warnings for all Valve Installations at the
end of these instructions. It is absolutely necessary that all design, installation,
operation & maintenance personnel be trained in proper handling, installation
requirements and precautions for installation and use of plastic piping systems
before starting.
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 Spears Valves.
®
INSTALLATION INSTRUCTIONS FOR SOLVENT
WELDING APPLICATIONS
Instructions apply to Ball, Ball Check & 3-Way Valves. All components should
be removed from packaging & exposed to the installation environment for a
minimum of 1 hour to thermally balance the components.
TU-3A-0606
These instructions cover
installation for all Spears PVC, CPVC &
®
PP True Union 2000 Industrial Ball, Ball
Check & 3-Way Ball Valves & Regular
Style True Union Ball & Ball Check
Valves. All applicable instructions &
procedures should be read thoroughly
before starting. Suitability of the intended
service application should be determined
prior to installation. Plastic piping
systems should be engineered, installed,
operated & maintained in accordance
with accepted standards & procedures
for plastic piping systems.
1
90°
general
Deburr
STEP 2
Remove Union Nuts (1) and End 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.
FULL INTERFERENCE FIT
End
Connector
O-ring
End
Connector
O-ring
Make sure that the face of each End Connector Socket is at a square 90° angle
with the pipe end.
End Connector Socket 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.
STEP 4
Primer is necessary to penetrate
& soften both pipe and End
Connector Socket surfaces in
order for the solvent cement to
properly bond.
Using a brush or applicator
size no less than 1/2 the pipe
diameter, apply a liberal coat of
primer with a circular, scrubbing
motion to the inside socket of
the End Connector until the
surface is softened and semi-
fl uid. This will occur in 5 to 15
seconds, depending on size and
temperature.
90°
STEP 1
Pipe Preparation - Prepare connecting
pipes as required. Pipe ends must be cut
square at 90° using a wheel-type cutter or
a saw and miter box.
Regardless of the cutting method used,
burrs will be created, which must be
removed.
beveled at 10° to 15°. A deburring tool
is recommended, however a fi le may be
used in its place as shown.
Bevel
½
STEP 3
Socket
Depth
Check the Joint Interference fi t between
the pipe and the End Connector Socket.
An Interference Fit is necessary for proper
fusion of the joint. To check, lightly insert the
End Connector Socket over the prepared
Socket
pipe ends. DO NOT FORCE THE SOCKET
Depth
ONTO THE PIPE.
NET FIT
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.
Socket
Depth
2
All pipe ends should be
PIPE
UNION NUT
ONE-WAY
MOTION