Technical data pneumatic Rack and Pinion actuators
www.El-O-matic.com
Data sheet
AB
AB
AB
Sheet No.:
Date: June 2010
A1.102 Rev. B
TECHNICAL DETAILS, STANDARD ACTUATORE/P
P-series
PD = Double acting
E-series
ED = Double acting
11°
Adjustable
range*
91°
Open
*
only standard on E-Serie actuators
A B
AB
91.5°
A
PS = Spring return
ES = Spring return
-0.5° Closed
B
Specification
Pressure range : Double acting 20 to 120 psi
: Spring return 80 to 120 psi,, with max. spring set
40 to 120 psi, reduced spring
quantity
: 180° actuators 87 psi maximum
Torque : 1133 to 40,000 in.lb at 80psi supply
See torque datasheets 1.104.01 and 1.104.02
Operating media : Air, dry or lubricated and inert gasses
: For sub-zero applications take appropriate measures
Temperature : -4° to +176°F
European Directives
PED : All actuators are suiteable for use
with Group 2 gasses according to
Pressure Equippement Directive
97/23/EC
: Optional : actuators suiteable for
use with Group 1 gasses
ATEX : All basic actuators are suiteable
for use in hazardous area's
classified II 2 GD, zones 1 or 2
(Gasses) and 21 or 22 (Dust)
Lubrication : Factory lubricated for the normal life of the actuator
Construction : Suitable for indoor and outdoor installation
Finish : Polyester non-TGIC based powder coating
(see data sheet A4.204.01)
Rotation : 91.5° (-0.5° CW to 91° CCW)
Russian Approvals
El-O-Matic E and P series pneumatic actuators are
available with the GOST-R and Rostechnadzor (RTN)
approvals.
Double acting : Standard counter clockwise with port "A" pressurized
(code A, see data sheet A1.503 for other assembly
codes)
Spring return : Clockwise fail action
(code A, see data sheet A1.504 for other assembly
codes)
Note
1. Operating time is average with actuator under load
and solenoid valve fitted.
2. Air consumption is the actual free air volume at 1 atm.
3. Pressure is in barg.
Limit stops : Standard on E-series. Adjustable range 91°/80°
: Optional on P-series. See datasheet A1.501.01
: For double stroke adjustment. See datasheet
EL-O-MATIC ACTUATOR WITH ONE WAY LIMIT STOPS L1/LF
Description
Actuators with one way adjustable limit stops are used where the maximum opening (or closing)
position of the valve needs to be reduced. For instance to adjust the maximum capacity of a
remote operated valve.
Also actuators with 180° rotation are available with these stops.
Operation
DOUBLE ACTING
SPRING RETURN
Dim.
in inch
A
B
C
D
ACTUATOR TYPE
P2500P4000
22.827.9
31.345.4
14.015
1.21.2
Stop screws are fitted to both endcaps and the screw length is such that adjustment is possible
through the specified rotation of the actuator.
The modified endcap is machined for -0.5° to +93° rotation for all P-series models.
Identification
“L1” is added to the basic part number i.e. PD2500-L1
Specification:
Pressure : Up to 120 PSI
Media : Air, dry or lubricated or non-corrosive gas
Torque (90°) : Data sheet A1.104.01 - A1.104.04
(180°) : Data sheet P-serie A1.204.01 and A1.204.02
Other dimensions : Data sheet A 1.103.XXX (90°)
: Data sheet A 1.203.011 (180°)
Temperature : -4.0° to +176°F
9.236
6.496
5/8"-11x.98
Adjustable range : 80°-93°(90°) or 160°-186° (180°)
Adjustable position (see data sheet A1.503 or A1.504)
code position
A Valve open (spring to close)
3.827
1.811
P2500
B Valve open (spring to close)
C Valve closed (spring to open)
D Valve closed (spring to open)
Note:
10x1.14
3/4"-10x1.14
5/8"-11x.98
1) Can be provided with extra long screws for full range adjustment
(identification: PD2500-LF)
2) This option in combination of a manual override gearbox is redundant
These limit stop plates are used when precise control is required for both end of stroke positions.
It is possible to adjust 15° of both ends of the standard stroke.
Construction
The complete stop plate assembly may be added to the 90° P- series actuators.
The assembly is normally sandwiched between the actuator and mounting surface of the valve
or bracket. Bearing rings are used at both surfaces to provide a long life expectancy.
The unit is assembled with a drive adaptor which passes through the stop plate, into the square
actuator and provides the coupling between the two components.
This drive adaptor normally also accommodates the coupling of the valve stem.
Identification
"LS420" is added to the basic part number i.e. PD2500-LS420
EL-O-MATIC ACTUATOR WITH DOUBLE STROKE ADJUSTMENTDSA
Open
stopscrew (2)
adjustable
range
Description
Actuators with double stroke adjustment are normally used for high performance butterfly valves
where a fine adjustment is required for the closed position. In this version adjustment is provided
at the end of the opening and closing stroke positions. DSA actuators may be double acting or
spring return, though are normally used as spring return (fail close) actuators.
Operation
The closed position is adjusted by means of the stop-screw (1) located in the actuator body and
for the open position by the stop-screws (2) in the actuator end caps.
Factory option:
Fail to Open
Closed
stopscrew (1)
Identification
See data sheet A1.102.10
Specification
Pressure : Up to 120 psi
Operating media : Air, dry or lubricated or non-corrosive gas
Torque (90°) : Data sheet A1.104.01 - A1.104.02
Rotation -
- Spring return : Clock-wise on air failure.
- Double acting : Counter clock-wise with port “A” pressurised.
Other dimensions : Data sheet A1.103.XXX
Temperature : -4° to +176° F
Adjustable range : Closed position (1), -3° - 15°
Open position (2), 80° - 93°
D max.0.8270.8270.9291.3231.3231.3231.3231.7722.362
Insert mounting
acc. ISO 5211
Description
Most of the El-O-Matic actuators are fitted with drive inserts. This enables actuators to be
directly mounted onto suitable valves and eliminates the need for a bracket and coupling type
mounting kit. The use of direct mounts significantly cuts the cost of the valve/actuator assembly.
Standard actuators are fitted with square drive inserts in accordance with ISO 5211 (or DIN
3337), but a wide variety of other inserts are also available. Special inserts may have oversize or
undersize squares, double-D and shaft key way forms.
Drive inserts can be supplied on factory built actuators or as loose items and are easily
replaceable at distributor or end user level.
Where direct mounts are not possible, for instance on valves with exposed grand packing, the
use of inserts often simplifies the design of the mounting kit.
Material : Aluminum alloy
Finish : Anodized
The following actuator types do not have inserts.
- E12,
- P2500 and P4000
- 180° actuators
These actuators have inner square directly in the bottom of the pinion. See the following data
sheets for more information :
E12 ISO5211 A1.103.102
P2500/P4000 ISO 5211 A1.103.106
180° ISO 5211 A1.203.011
1. Emerson Process Management recommends that the valve manufacturer supply the maximum required torque
values (Including any adjustments or suggested safety factors for valve service conditions or application).
Additionally, the valve manufacturer must identify at which position(s) and direction(s) of rotation
(Counter Clock Wise or Clock Wise) these maximum requirements occur.
2. If in doubt, or you require any assistance with sizing actuators, do not hesitate to contact your
nearest Emerson's Valve Automation Division representative.
3 Pressure on port "A" opens the actuator*
4 The actuator is shown in closed position*
1. Emerson Process Management
recommends that the valve manufacturer
supply the maximum required torque values
(Including any adjustments or suggested
safety factors for valve service conditions or
application).
Additionally, the valve manufacturer must
identify at which position(s) and direction(s)
of rotation (Counter Clock Wise or Clock
Wise) these maximum requirements occur.
2. If in doubt, or you require any assistance
with sizing actuators, do not hesitate to
CLOSED
contact your nearest Emerson's Valve
Automation Division representative.
3 Pressure on port "A" opens the actuator*
4 The actuator is shown in closed position*
(* code A, data sheet A1.504)
A double piston, rack and pinion pneumatic actuator incorporating a three point piston support
system, anti-blowout spindle and with high duty synthetic bearings at all bearing points.
Grease
This version is a standard aluminum actuator, but incorporating parts and materials suitable for
low temperature operation.
Note
When operating actuators in sub-zero temperatures (< 0°C or < 32°F) care should be taken to
counter the effects of freezing condensate inside the actuator.
Specification
Max. pressure : 120 psi (8 bar)
Torque : Standard
Media : Air or non corrosive gas
Temperature : -40°F to +176°F (-40°C to +80°C)
Finish : Polyester non-TGIC based powder coating (see data sheet A4.204.01)
Spare parts
Dedicated low temperature spare parts are available for maintenance or make a standard
actuator suiteable for low temperature operation.
A double piston, rack and pinion pneumatic actuator incorporating a three point piston support
system, anti-blowout spindle and with high duty synthetic bearings at all bearing points.
Grease
This version is a standard aluminum actuator, but incorporating parts and materials suitable for
high temperature operation.
Specification
Max. pressure : 8 bar ~ 120psi
Torque : Standard
Media : Air or non corrosive gas
Temperature : -4°F to +248°F (-20°C to +120°C)
Finish : Polyester non-TGIC based powder coating (see data sheet A4.204.01)
Spare parts
Dedicated high temperature spare parts are available for maintenance or make a standard
actuator suiteable for high temperature operation.