Watts Spools User Manual
Series w-spl and w-flg, Lead free, Make up spools and flanges
For Retrofit Applications
ES-Spools/Flanges
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Watts “Make Up” Spools are used when retrofitting a backflow
preventer into an installation where an existing backflow pre-
venter is being replaced. Watts “Make Up” Flanges are used in
piping applications where there is a need for additional fitting
lay length. The W-SPL and W-FLG feature Lead Free* con-
struction to comply with Lead Free* installation requirements.
Models
W-SPL - Make Up Spools
Available in Lightweight 300 series Stainless Steel or Epoxy
coated Carbon Steel. AWWA 150# class “D” Carbon Steel
Flanges offered as standard. 150# class “D” Stainless Steel
Flanges upon special request.
W-FLG - Make Up Flanges
AWWA 150# modified class “D” Zinc plated Carbon Steel
Flanges with standard bolt pattern. 150# modified class “D”
Zinc Plated Carbon Steel Flanges with standard pattern
slotted. 150# modified class “D” Stainless Steel Flanges
with standard bolt pattern.
Contact factory for specific applications.
Watts 709/LF709
Watts 774 with Spool
Spool
Spools
Series W-SPL and W-FLG
Make Up Spools and Flanges
For Backflow Preventers 2
1
⁄
2
"-10" (65-250mm)
LEAD FREE
*
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.