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PLUMBING

REDUCED PRESSURE ZONE BACKFLOW PREVENTERS

A
SERIES 009QT

B duced Pressure Zone Backflow Preventers are designed to provide

protection of the potable water supply in accordance with national
plumbing codes and water utility authority requirements. This

C series can be utilized in a variety of installations, including high
hazard cross connections in piping systems or for containment
Features: • Single access cover and modular check construction at the service line entrance. This series features two in-line, in-

D for ease of maintenance • Top entry - all internals immediately dependent check valves, captured springs and replaceable check
accessible • Captured springs for safe maintenance • Internal seats with an intermediate relief valve. A compact modular design
relief valve for right and left hand installations • Replaceable seats concept facilitates easy maintenance and assembly access. All
for economical repair • Bronze body construction for durability • sizes are constructed with NPT body connections and furnished

E Ball valve test cocks - screwdriver slotted • Large body passages with ball type test cocks. Series 009QT has quarter turn, full port,
provides low pressure drop • compact, space saving design • No resilient seated, bronze ball valve shut-offs. Sizes 1/2”, 3/4” and
special tools required for servicing. The Watts Series 009QT Re- 1” shutoffs have tee handles.

F Product Dimensions (Inches) Weight

# Mfg # Size (In.) A B C D L M N Lbs

490230 009M3QT-S 3/4 10-3/4 6-1/4 3-1/2 1-1/2 6-3/4 3-3/16 2-3/4 7-3/4
G 490240 009M2QT-S
1 16-3/4 7-3/4 3 2-1/2 9-1/2 3-3/4 3 15-1/4

489980 009M2QT-S 1-1/2 17-7/8 7-3/4 3-1/2 2-1/2 11-1/8 4-7/8 4 20-3/8

H 490000 009M2QT-S 2 21-3/8 8-1/4 4-1/2 3-1/4 13-1/2 5-15/16 5 36-7/8

909QT-S , Series 909 Reduced Pressure Zone Assemblies prevent the reverse flow of

I polluted water from entering into the potable water supply due to backsiphonage and or
back pressure. It consists of a bronze body construction, bronze ball valve shutoffs, and
bronze test cocks. Series 909 features a patented “air-in/water-out” design principle for

J protection during emergency combined backsiphonage and back pressure conditions.
It is ideal for health hazard cross-connections or for containment at the service line
entrance. Check with local water authorities for installation requirements. Maximum
Working Pressure: 175psi (12.06 bar).

K

L Product Mfg. Size AS B Dimensions (Inches) ES L Weight
M # # (in) 18-1/16 8-3/4 CD 10-3/16 7-5/16 Lbs
3/4 8/3/4 4 4-3/4 7-5/16 15.6
490242 909QT-S 19-5/8 4 4-3/4 11
1 17.5
490243 909QT-S

N
O No. 909AG Series Air Gaps

P Product # Mfg. # Description For # Drain Outlet Dimensions (In.) Weight
909 Sizes Size (In.) AB lbs

490250 909-AG-C Air Gap 3/4” and 1” 1 3-1/4 4-7/8 1-1/2

Q 490260 909-AG-F Air Gap 1-1/4” thru 2” 2 4-3/8 6-3/4 3-1/4

490245 909-AG-A Air Gap 3/4” 1/2 2-3/8 3-1/8 5/8

R When installing a drain line use 909AG series Air Gaps on No. 009 backflow preventers.

August 31, 2009