AMC 2026 catalogue

Plumbing

Backflow Preventers & Vacuum Breakers

Find even MORE at Grainger.ca 1825

1-888-602-0000 PLUMBING

▪Max. pressure: 175 psi ▪NPT connections ▪Find information on kit contents at Grainger.ca Help prevent the reverse flow of polluted water into the potable water supply due to backsiphonage and backpressure.

Watts 009 Series—Nos. WWG6A770 and WWG6A771 meet ASSE 1013, AWWA C-511-92, CSA B64.4, and IAPMO. No. WWG6A771 is the M1 version of the 009 Series.

Air Gaps—Provide an unobstructed separation between potable water supply discharge and receiving vessel opening.

Repair Kits—Include disc assemblies, O-rings, and diaphragm.

For Use With Size

Item

No. Air Gap

Series 909 3⁄4 in to 1 in WWG1KYA3 Series 909 1 1⁄4 in to 3 in WWG1KYF1 Backflow Preventer Repair Kit

Mfr. No. 3⁄4 909QT, 1 909 QT

WWG1RCW1 Mfr. No. 11/4 909 QT, 11/2 909M1QT, 2 909M1QT WWG1RCW3 Mfr. No. 4 909 NRS WWG1RCW6 Mfr. No. 957-OSY 21/2, 957-OSY 3", 957-OSY 4" WWG1RCY2 Watts Series 909, 6" WWG6AUT4 Apollo No. 40201T2, 40202T2, and 40203T2 WWG2ZXY7 Backflow Preventer Test Kit, 5 Valve

Grainger Items 34CU36, 34CU37, 34CU38, 34CU40, 34CU41 — WWG34CU33

Grainger Items 34CU36, 34CU37, 34CU38, 34CU39, 34CU41 WWG34CU34 Backflow Quick Connect Adapter

Grainger Items 34CU33, 34CU34, 34CU35, 6AJV6 — WWG34CU37 Grainger Items 34CU33, 34CU34, 34CU35, 6AJV6 WWG34CU38 Backflow Test Kit Replacement Hose

Grainger Items, 34CU34, 34CU35, 6AJV6 — WWG34CU39 Grainger Item 34CU33 WWG34CU40 Bleed-Off Valve Assembly

Grainger Items 34CU33, 34CU34, 34CU35, 6AJV6 — WWG6AJV7 First Check Valve Repair Kit

Watts Series 009, 1⁄4 to 1⁄2 in — WWG6CUH6 In-Line Replacement Filters for Backflow Test Kit Hose

Grainger Items 34CU33, 34CU34, 34CU35, 6AJV6 — WWG34CU41 Relief Valve Repair Kit

Watts Series 009, 1⁄4 to 1⁄2" — WWG6AUP2 Second Check Valve Repair Kit

Watts Series 909, 2 1⁄2 to 3" — WWG6CUN3 Test Cock Adapter Kit

Grainger Item 34CU33, 34CU34, 34CU35, 6AJV6 — WWG6AJW2 Total Relief Kit

Watts Series 909, 4" — WWG6AUU6 Watts Series 009 M2, 1" WWG6AUU0 Valve Pedal

Most Valves — WWG29VK57 Valve Plunger

Most Valves — WWG29VK64 Valve Threaded Insert Kit

Most Valves — WWG29VK62

Size Body Material Length Width Max. Temp.

Item

No. Anti-Siphon Backflow Preventer Watts 008

1⁄2 in Lead Free

Brass 5 3⁄4 in 2 in 180 °F WWG5DMH7

Reduced Pressure Zone Backflow Preventer Watts 009

1⁄2 in Stainless

Steel 10 in 4 5⁄8 in 180 Degrees F WWG1KYE6

3⁄4 in Bronze 14 1⁄4 in 5 7⁄8 in 180 Degrees F WWG6A770

1 in Lead Free

Bronze 18 1⁄4 in 3 7⁄16 in 180 Degrees F WWG26X140

1 in Bronze 20 1⁄2 in 6 1⁄4 in 180 Degrees F WWG6A771

APOLLO, MIDWEST INSTRUMENT, SANI-LAV, WATTS Reduced-Pressure Zone (RPZ) Backflow Preventers

Air Release/Air Vacuum Valve

Application Inlet Size Outlet Size

Min. Pressure

Max. Pressure Max. Vent Capacity

Item

No.

Clean Water

3⁄4" 1⁄2" 5 psi 175 psi 6 scfm at 150 PSI WWG5LYL1

1" 1⁄2" 5 psi 150 psi 55 scfm at 150 PSI WWG5LYL3 1" 1" 5 psi 300 psi 18 scfm at 300 PSI WWG5LYL5 2" 2" 5 psi 300 psi 25 scfm at 300 PSI WWG5WLX6

VAL-MATIC

▪Max. temp.: 250°F ▪Vacuum pressure: 29" Hg ▪FNPT connection Cast-iron construction. Float and internal compon- ents are 316 stainless steel. Incorporates both an air release valve and an air vacuum valve into 1 compact unit. Suitable for all high points in a water distribution transmission system.

Boiler Feed Valve

▪Max. pressure: 100 psi ▪Adjustable pressure

range: 10 to 25 psi ▪Max. temp.: 212°F Cast-iron valve permits rapid system fill and sustained air purge flow. With strainer screen. Factory set at 15 psi. Features a backflow preventer.

Pipe Size Height (in.) Connection Type

Item

No. 1⁄2" 5 1⁄4 FNPT and NPT Union WWG46A967

WATTS

WWG6AUP2

WWG6A770