Control valves
Control valves
PF6_G-NC (Normally Closed)
PF6_G-1NC flow over seat (1 to 2)
PF6_G-NO (Normally Open)
PF6_G-1NO flow under seat (2 to 1)
10
�
�
8
��
3⁄4
"
6
4
��
1⁄2
"
2
����
��
��
��
��
��
����
����
Media pressure (bar)
PF6_G-2NC flow over seat (1 to 2)
����
1.8
0
3⁄4"
1⁄2"
0
4
8
12
16
Media pressure (bar)
Pilot / media pressure relationship
PF6_G-2NO flow under seat (2 to 1)
10
8
11⁄2"
11⁄4"
1"
3⁄4"
1⁄2"
0
4
8
12
16
Media pressure (bar)
2"
11⁄2"
11⁄4"
2"
��
��
1
"
6
3⁄4
"
4
��
1⁄2
"
2
��
��
��
��
��
����
����
����
Media pressure (bar)
PF6_G-3NC flow over seat (1 to 2)
��
��
��
��
1"
��
Media pressure (bar)
1.5
0
2"
11⁄2"
11⁄4"
��
��
��
����
����
����
PF6_G-3NO flow under seat (2 to 1)
8
6
2 "
4
11⁄2"
2
11⁄4"
1
1"
0
0
4
8
12
16
Media pressure (bar)
PF6_G-BD (Bi-Directional normally closed)
PF6_G-1BD flow over seat (1 to 2)
10
8
3⁄4"
6
4
2
0
PF6_G-2BD flow over seat (1 to 2)
10
8
4
2
0
PF6_G-3BD flow over seat (1 to 2)
8
6
4
2
0
1⁄2"
0
4
8
12
16
Media pressure (bar)
2"
11⁄2"
1⁄2"
11⁄4"
6
1"
3⁄4"
0
4
8
12
16
Media pressure (bar)
2"
11⁄2"
11⁄4"
1"
0
4
8
12
16
Media pressure (bar)
TI-P373-13 CH Issue 10
Page 5 of 8
PF6 Stainless Steel Piston Actuated On/Off Valves
4.1.108
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