Spec Sheet

ManualsBrandsWatts ManualsBackflow Preventers3" Lead Free Double Check Valve Assembly (LF007-OSY)

1

2

3

MODEL SIZE (DN) DIMENSIONS WEIGHT

ACE,E1R

in. mm in. mm in. mm in. mm in. mm lbs. kgs.

007QT-FDA 2

1

⁄2 65 33

1

⁄8 841 6

3

⁄8 162 9

1

⁄16 230 8

3

⁄4 222 155 70



007-NRS 2

1

⁄2 65 33

1

⁄8 841 9

3

⁄8 238 9

1

⁄16 230 8

3

⁄4 222 155 70



007-OSY 2

1

⁄2 65 33

1

⁄8 841 16

3

⁄8 416 9

1

⁄16 230 8

3

⁄4 222 158 72

007-QT-FDA 3 80 34

1

⁄8 867 6

3

⁄8 162 9

1

⁄16 230 8

3

⁄4 222 155 70



007-NRS 3 80 34

1

⁄8 867 10

1

⁄4 260 9

1

⁄16 230 8

3

⁄4 222 185 84



007-OSY 3 80 34

1

⁄8 867 18

7

⁄8 479 9

1

⁄16 230 8

3

⁄4 222 185 84

MODEL SIZE (DN) DIMENSIONS

A

in. mm in. mm

U007QT

1

⁄2 15 12

13

⁄16 326

U007M2QT

3

⁄4 20 13

13

⁄16 350

U007M2QT 1 25 16

5

⁄8 422

U007M2QT 1

1

⁄4 32 20

3

⁄4 527

U007M2QT 1

1

⁄2 40 21

1

⁄2 546

U007M1QT 2 50 24

1

⁄2 622

Strainer Dimensions

SIZE WEIGHT

MN

in. mm in. mm in. mm lbs. kgs.

2

1

⁄2 65 10 254 6

1

⁄2 165 28 13

3* 80 10

1

⁄8 267 7 178 34 15

*S Models only

A

A

C (open)

9" (229mm)

4

5

⁄16" (109mm)

N

E1

E

R

Union Tailpiece

Union Tailpiece

Union Nut

Union Nut

Dimensions – Weights

Sizes: 2

1

⁄2" – 3" (65 – 80mm)

1" U007M1QT

Sizes:

1

⁄2" – 2" (15 – 50mm)

M