Watts S8 - Manual

Brass Body
Adapter
Disc
Stem
Washer
Spring
Pressure
Plate
Diaphragm
INLET
▲
OUTLET
▲
Series S8C
Backflow Preventer for
Tub and Shower Hand
Spray Sets
Series S8C is a unique device specially made for use with tub
and shower hand spray sets. Attachment threading complies
with standard production shower heads and spray hose sets
and the installation requires no plumbing changes. The de-
vice is screwed directly between shower head and hose. Its
purpose is to prevent the flow of contaminated water back
into the potable water supply. Maximum pressure 125 psi
(8.6 bar). Maximum temperature 180
°
F (82
°
C).
MODELS
No. S8C - Polished Chrome Finish
Inlet Connection: Sizes 3 ⁄
8
" or 1 ⁄
2
" (10 or 15mm)
NPTF standard female pipe thread.
Outlet Connection: Size
1 ⁄
2
" (15mm)
NPTM standard male pipe thread.
No. S8 - Plain Brass
Inlet Connection: Sizes 3 ⁄
8
" or 1 ⁄
2
" (10 or 15mm)
NPTF standard female pipe thread.
Outlet Connection: Size
1 ⁄
2
" (15mm)
NPTM standard male pipe thread.
FEATURES
• Polished chrome or brass finish
• Stainless steel working parts for longevity
• Durable rubber diaphragm and disc provides
positive seating
• Compact size
SPECIFICATIONS
For ANTI-SIPHON VACUUM BREAKERS
A hose connection type anti-siphon vacuum breaker shall be
installed where indicated on the plans to prevent the back si-
phonage of contaminated water. The valve shall have a pol-
ished chrome finish and solid brass body. Internal compo-
nents shall be stainless steel and plastic for corrosion resis-
tance. Valve shall have resilient seating in both the check and
air inlet seats. The valve shall be ASSE approved and shall be
a Watts Regulator Company Series S8C.
ES-S8C
Job Name Contractor
Job Location Approval
Engineer Contractor’s P.O. No.
Approval Representative
For Health Hazard Applications
No. S8
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 without prior notice and
without incurring any obligation to make such changes and modifications on
Watts products previously or subsequently sold.