Port Size

Body Size

Normally Closed

Normally Open

CV

Average Response Constants**

Weight lb (kg)

M

F

1, 2

3

Valve Model Number*

Valve Model Number*

NC

NO

NC

NO

NPT Threads

G Threads

NPT Threads

G Threads

1-2

2-3

1-2

2-3

1-2

2-3

1-2

2-3

1/4

1/2

3/8

2773B2001W

D2773B2001W

2774B2001W

D2774B2001W

2.5

3.1

2.3

2.7

10

0.9

0.8

0.99

0.88

2.5 (1.2)

3/8

1/2

3/8

2773B3001W

D2773B3001W

2774B3001W

D2774B3001W

3.6

5.3

2.8

3.2

10

0.7

0.5

0.9

0.77

2.5 (1.2)

1/2

1/2

3/8

2773B4011W

D2773B4011W

2774B4011W

D2774B4011W

3.3

5.3

2.8

3.2

10

0.75

0.5

0.9

0.76

2.5 (1.2)

1/2

1

3/4

2773B4001W

D2773B4001W

2774B4001W

D2774B4001W

6.3

9.2

6.3

8

11

0.43

0.27

0.46

0.6

3.3 (1.5)

3/4

1

3/4

2773B5001W

D2773B5001W

2774B5001W

D2774B5001W

7.7

11

6.9

7.4

11

0.36

0.26

0.45

0.6

3.3 (1.5)

1

1

3/4

2773B6011W

D2773B6011W

2774B6011W

D2774B6011W

8

12

6.8

7.5

11

0.34

0.25

0.4

0.59

3.3 (1.5)

1

1½

1¼

2773B6001W

D2773B6001W

2774B6001W

D2774B6001W

23

34

17

24

28

0.17

0.14

0.2

0.17

7.0 (3.2)

1¼

1½

1¼

2773B7001W

D2773B7001W

2774B7001W

D2774B7001W

30

32

19

24

28

0.15

0.15

0.19

0.17

7.0 (3.2)

1½

1½

1¼

2773B8011W

D2773B8011W

2774B8011W

D2774B8011W

30

31

19

23

28

0.15

0.15

0.19

0.16

7.0 (3.2)

1½

2½

2

2773B8001W

D2773B8001W

2774B8001W

D2774B8001W

68

70

57

59

76

0.05

0.04

0.07

0.04

16.5 (7.4)

2½

2½

2

2773B9001W

D2773B9001W

2774B9001W

D2774B9001W

70

70

58

61

76

0.05

0.04

0.05

0.04

16.5 (7.4)

2½

2½

2

2773B9011W

D2773B9011W

2774B9011W

D2774B9011W

70

71

54

55

76

0.05

0.04

0.5

0.04

16.5 (7.4)

# Voltage: W=24 VDC;  Z=110-120 VAC, 50/60 Hz, e.g., 2773B2001Z. For other voltages, consult ROSS.            
** Valve Response Time  – Response Time (msec) = M + (F • V).  This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure.  M and F values are shown above.