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handle extension pipe. Deburr & bevel cut pipes and dry-fi t to check
new extension height. Square-cut ends must be maintained (see
cutting guidlines).
Solvent Cement Threaded Adapter to trimmed riser pipe
STEP 4
and Solvent Cement threaded coupler to handle extension pipe.
Solvent Cement riser assembly to valve body. Solvent
STEP 5
cement handle extension pipe to small threaded coupling. Allow
suffi cient time for cement to set before handling.
Insert Handle/Flapper assembly and if necessary, adjust
STEP 6
Tee Handle height to maintain desired 1/8" gap below installed
Plug.
PIPE TRIM, ALL VALVE SIZES
RISER cut length
Supplied Length (D) Remove "Z" Inches
PLUG
REMOVE
RISER
PIPE
HANDLE
EXTENSION
PIPE
HANDLE Pipe cut Length
Remove Same Amount
Z
Trim Amount
Z
FINISH
GRADE
Desired
Z
or
Extension
FLOOR
Height
FLOW
7
Handle Adjustment for all Extension Kits
• • Removal and reinsertion of flapper/handle
requires tilting the flapper/handle back 45°,
parallel to and against the direction of flow.
• • Contact between the seated plug and Tee
must be avoided.
Clearance between the
"Tee" and seated plug should be no more
than 1/8" .
• • "Tee" height can be adjusted. With
the handle/flapper in position and plug
removed, lay a straight-edge across the
threaded adapter rim and measure gap
between straight-edge and top of Tee.
Adjust gap by threading in or out. Lock
with threaded collar.
Maximum Gap, Table 4
Valve
Threaded Adapter
Size
Rim to TEE
2"
9/16"
3"
3/4"
4"
9/16"
6"
3/4"
• • Installation of standard pre-made extension kits requires correct
trench/box depth. Minimum depth = Kit Height + Dimension "I" from
Table 1, below.
• • A 2% slope (1/4" drop over 12" span) must be maintained for proper
flow & valve function.
WARNING:
ALL AIR MUST BE BLED FROM THE SYSTEM DURING INITIAL
FLUID FILL. PRESSURE TESTING OF THE SYSTEM SHOULD NOT BE
MADE UNTIL ALL SOLVENT CEMENT JOINTS HAVE PROPERLY CURED.
INITIAL PRESSURE TESTING SHOULD BE MADE AT APPROXIMATELY
10% OF THE SYSTEM HYDROSTATIC PRESSURE RATING TO IDENTIFY
POTENTIAL PROBLEMS, PRIOR TO TESTING AT HIGHER PRESSURES.
WARNING:
SYSTEMS SHOULD NOT BE OPERATED OR FLUSHED
OUT AT FLOW VELOCITIES GREATER THAN 5 FEET PER SECOND.
SPEARS
MANUFACTURING COMPANY
®
CORPORATE OFFICE
15853 Olden Street, Sylmar, CA 91342
PO Box 9203, Sylmar, CA 91392
(818) 364-1611 • www.spearsmfg.com
© Copyright 2010 Spears
®
Manufacturing Company. All Rights Reserved.
Printed in the United States of America 10/10.
Lift or
Insert Riser
Assembly
PLUG
GAP
GAP
(PLUG REMOVED}
THREADED
ADAPTER
BWV-3-0410
8
Tilt Back
45°
TEE
RISER
STRAIGHT-EDGE
TEE
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