Spirax Sarco PN9400E Series, PN9400 Series, PN94 6E Series, PN9400R Series, PN94 3E Series Technical Data Manual
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TI-P357-31
CTLS Issue 6
PN9400 Series Pneumatic Actuators
for Spira-trol
TM
K and L Series DN125 - DN300, C Series and QL Series
Description
The PN9400 series are a compact range of linear pneumatic
actuators. They have been designed for matching the requirements
of valves at various differential pressures. Each actuator is fitted
with a mechanical travel indicator and incorporates a fully-rolling
diaphragm, which provides good linearity over the operating stroke.
Available types and options
See the 'PN9400 series selection guide' on page 2, to fully
understand
document.
the product nomenclature quoted throughout this
PN9400 Series with handwheelPN9400 Series
Technical data
Temperature range -20 °C to +80 °C
Maximum operating inlet pressure 4 bar g
Air supply connection 2 x ½" NPT
Actuator travel 80 mm
Page 1 of 3
H
G
I
F
Dimensions / weights (approximate) in mm and kg
Actuator F G H I
PN9400E and variants
PN9400R and variants
PN94_6E 732 465 300 112 0 60 30
PN94_3E 732 465 300 1120 60 30
PN94_6R 732 465 300 1050 60 28
PN94_3R 732 465 300 1050 60 28
Weight
With handwheel
PN9400 series selection guide:
Typ e PN = Polyester powder coated (standard) PN
Series 9 = 9000 series 9
Actuator size 4 = 1 110 c m
Valve travel 8 = 80 mm 8
Spring rating and
Actuator force in relation to
the motive air pressure
Spring action
Optional - Bolting S = Stainless steel
Optional - Handwheel H = Handwheel
3 = Min. 1.8 - 3.0 bar Max. Force 20 000 N
6 = Min. 0.9 - 1.5 bar Max. Force 10 000 N
E = Spring-extend (Closed) E
R = Spring-retract (Open)
2
Area of diaphragm
1 110 c m²
4
3
Selection example:
PN 9 4 8 3 E - -
How to order example: 1 off Spirax Sarco PN9483E pneumatic piston actuator.
Page 2 of 3
PN9400 Series Pneumatic Actuators for Spira-trolTM K and L Series DN125 - DN300, C Series and QL Series
TI-P357-31 CTLS Issue 6
Materials
No. Part Material
1 Yok e SG iron
Bearing and seal
2
insert
3 Bearing PTFE / steel compos ite
4 Seal Polyurethane
5 Gasket Reinforced graphite
6 Housing lower Carbon steel
7 Spindle Stainless steel
Diaphragm
8
protection plate
9 Diaphragm Reinforced NBR
10 Spacer Carbon steel
11 Spring Carbon steel
12 Housing upper Carbon steel
13 Lock-nut Carbon steel
14 Up guide Carbon steel
15 Screw Carbon steel
16 Screw Carbon steel
Carbon steel
Carbon steel
36
33
31
13
35
10
11
38
33
34
14
2
9
8
6
5
7
32
30
37 12
4
3
17
18
16
15
17 Screw Carbon steel
18 Nut Carbon steel
19 Connector Stainless steel
20 Adaptor Stainless steel
21 Collar Stainless steel
22 Clamp Stainless steel
23 Scale Stainless steel
24 Lock-nut Carbon steel
25 Screw Carbon steel
26 Nut Carbon steel
27 Screw Carbon steel
28 Nut Carbon steel
29 Screw Carbon steel
30 'O' ring Viton
31 Vent plug Brass
32 Washer 'O' ring Carbon steel
Intermediate
33
plate
Diaphragm
34
guide plate
35 Spring plate Carbon steel
Spring guide
36
plate
Carbon steel
Carbon steel
Carbon steel
28 + 29
21
25 + 26
23
1
24
19
23
20
Spare parts
The only spare parts available are clearly indicated below and are common for
both spring-extend and spring-retract versions.
Available spares
Stem seal kit 3, 4 and 5
Diaphragm kit 9 and 30
Travel indicator kit 23, 28 and 29
Spring kit 11
Linkage 19, 20, 21, 22, 25 and 26
Handwheel
How to order spares
Always order spares by using the description given in the column headed 'Available
spares' and state the model.
37 Cap protection Plastic
38 Washer Carbon steel
TI-P357-31 CTLS Issue 6
Example: 1 off Spring kit for a PN9483E pneumatic piston actuator.
Page 3 of 3
PN9400 Series Pneumatic Actuators for Spira-trolTM K and L Series DN125 - DN300, C Series and QL Series
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