Control valves
Control valves
Page 11 of 17
Maximum differential pressures for Class IV Viton soft seal seated SQ valves
For pure control applications providing control across the full valve opening range but not guaranteeing shut-off to a greater level than
the minimum flowrate based on the valves 30:1 turndown.
PNS4000 spring-to-retract actuators
Valve size
DN15 DN20 DN25 DN32 DN40
DN50
DN65 DN80 DN100
Kv
4.0
6.3 10 16 25
36
63
100 160
Travel mm
20 mm 30 mm
Actuator
Spring
range
Positioner
required
Maximum differential pressure Class IV (bar)
PNS4320
0.2 – 1.0
Optional
16.0
14.0
7.1
4.0
2.4 -
-
- -
0.4 – 1.2
Optional
16.0
16.0 16.0
11.4 7.6 3.8
- - -
PNS4326 1.0 – 3.0
Yes
16.0
16.0 16.0
16.0 16.0 12.7
- - -
PNS4420
0.2 – 1.0
Optional
16.0
16.0 12.8
7.7 5.0 2.3
- - -
0.4 – 1.2
Optional
16.0
16.0
16.0
16.0
12.8
6.8
-
- -
PNS4426
1.0 – 3.0
Yes
-
-
16.0
16.0
16.0
16.0
-
- -
PNS4430
0.4 – 1.2
Optional
-
-
-
-
-
-
3.4
2.0 1.2
PNS4436 1.0 – 3.0
Yes
-
- -
- - -
10.7 6.9 4.6
PNS4534 0.8 – 1.5
Yes
-
- -
- - -
13.6 8.8 5.9
PNS4634 0.8 – 1.5
Yes
-
- -
- - -
16.0 13.3 9.0
PN9000 spring-to-retract actuators
Valve size
DN15 DN20 DN25 DN32 DN40
DN50
DN65 DN80 DN100
Kv
4.0 6.3 10 16 25
36
63 100 160
Travel mm
20 mm 30 mm
Actuator
Spring
range
Positioner
required
Maximum differential pressure Class IV (bar)
PN9120R
0.4 – 1.2
Optional
7.0
4.0
1.0
1.0
- -
-
- -
PN9126R
1.0 – 2.0
Yes
16.0
16.0
7.0
6.0
4.0
2.0
-
- -
PN9123R 2.0 – 4.0
Yes
16.0
16.0 16.0
15.0 10.0 5.0
- - -
PN9220R
0.2 – 1.0
Optional
16.0
11.0 4.0
3.0 2.0 10.0
- - -
0.4 – 1.2
Optional
16.0
16.0
12.0
10.0
7.0
3.0
-
- -
PN9226R 1.0 – 2.0
Yes
16.0
16.0 16.0
16.0 16.0
11.0
- - -
PN9223R 2.0 – 4.0
Yes
16.0
16.0 16.0
16.0 16.0 16.0
- - -
PN9320R
0.2 – 1.0
Optional
16.0
16.0 11.0
9.0 7.0 3.0
- - -
0.4 – 1.2
Optional
16.0
16.0
16.0
16.0
15.0
8.0
-
- -
PN9330R
0.4 – 1.2
Yes
-
-
-
-
-
-
4.0
3.0 2.0
PN9336R
1.0 – 2.0
Yes
-
-
-
-
-
-
13.0
10.0 6.0
PN9337R 2.5 – 3.5
Yes
-
- -
- - -
6.0 4.0 3.0
STERI-TROL Clean Service 'S' series Two-port and Three-port
Control Valves DN15 (1⁄2") to DN100 (4")
TI-P183-02 CH Issue 3
Page 11 of 17
4.1.88
