Control valves

Control valves

4.1.99

DPMX - Maximum differential pressures for PF51G piston actuated valves

PF51G-NC (Normally closed)

Model

PF51G-1NC

PF51G-2NC

PF51G-3NC

Valve size

1⁄2"

3⁄4"

1"

1⁄2"

3⁄4"

1"

11⁄4"

11⁄2"

2"

1"

11⁄4"

11⁄2"

2"

Actuator

diameter

(mm)

45

45

45

63

63

63

63

63

63

90

90

90

90

Actuator

diameter

(mm)

45

45

45

63

63

63

63

63

63

90

90

90

90

Flow

direction

(port 1 to 2)

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

over seat

Flow

direction

(port 2 to 1)

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

Maximum

differential

pressure

(port 1 to 2)

(bar)

16

16

16

16

16

16

16

12

8

16

16

16

14

Maximum

differential

pressure

Pilot Pressure

Minimum

Maximum

(bar)

(bar)

(bar)

16

1.8

10

16

1.8

10

16

1.8

10

20

1.5

10

20

1.5

10

20

1.5

10

16

3.0

10

16

3.0

10

11

3.0

10

20

1.0

16

2.5

16

2.5

15

2.5

8

8

8

8

PF51G-NO (Normally open)

Model

PF51G-1NO

PF51G-2NO

PF51G-3NO

Valve size

1⁄2"

3⁄4"

1"

1⁄2"

3⁄4"

1"

11⁄4"

11⁄2"

2"

1"

11⁄4"

11⁄2"

2"

Maximum

differential

pressure

(bar)

16

16

16

16

16

16

16

16

12

16

16

16

16

Flow

direction

(port 2 to 1)

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

under seat

Pilot Pressure

Minimum

(bar)

1.8

1.8

1.8

1.5

1.5

1.5

1.5

1.5

1.5

1.0

1.0

1.0

1.0

Maximum

(bar)

10

10

10

10

10

10

10

10

10

8

8

8

8

PF51G-BD (Bi-Directional normally closed)

Model

PF51G-1BD

PF51G-2BD

PF51G-3BD

Valve size

1⁄2"

3⁄4"

1"

1⁄2"

3⁄4"

1"

11⁄4"

11⁄2"

2"

1"

11⁄4"

11⁄2"

2"

Actuator

Flow

diameter

direction

(mm)

(port 1 to 2)

45

over seat

45

over seat

45

over seat

63

over seat

63

over seat

63

over seat

63

over seat

63

over seat

63

over seat

90

over seat

90

over seat

90

over seat

90

over seat

Maximum

differential

pressure

(port 2 to 1)

(bar)

16.0

7.0

5.0

16.0

16.0

11.0

6.0

4.0

2.5

14.0

12.0

8.0

5.0

Pilot pressure

Minimum Maximum

(bar)

5.0

5.0

5.0

3.8

3.8

3.8

3.8

3.8

3.8

3.3

3.3

3.3

3.3

(bar)

10

10

10

10

10

10

10

10

10

8

8

8

8

TI-P373-14 CH Issue 4

PF51G Bronze Piston Actuated On / Off Valves

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