SR Series Single Acting Pneumatic Actuators

Application : Ball valve, butterfly valve, dampers on-off/proportional control, medical application (mask production, ventilatory devices etc.)

Size : RA 40SR...RA 350SR

Supply Pressure : 4-8 bar

Output Torque Value : 5 Nm...1943 Nm (6 bar) torque value

Body : Extruded alümunium

Caps and Pistons : DieCast alümunium

Temperature : -10 ºC...80 ºC

Valve Connection : ISO 5211 standard

Limit Switch Connection : Namur standard, VDI/VDE 3845

Positioner Connection : Namur standard, VDI/VDE 3846

Solenoid Valve Connection : Namur standard, VDI/VDE 3847

Stroke Adjustment : Both direction open and close positions ( +,- 5)

Accessories : Switch box, positioner, manuel override

PRODUCT CATALOG

GET OFFER

STEP FILE

Product Features
Product Description

Single Acting Actuator	Torque Value [Nm]				Valve Connection	Open Close Time		Air Consumption
Serie No	P:6 Bar		Spring Value		ISO5211	[Sec]		[Lt]
SR: Single Acting	0º	90º	0º	90º		Open	Close	Open	Close
TORK-RA40SR	10.3	4.4	9.5	3.7	F03/F04/F05	0.26	0.34	0.09	0
TORK-RA52.SR	23	9.7	22.6	9.2	F04/F05/F07	0.33	0.38	0.17	0
TORK-RA60.SR	25.6	10.7	25.1	10.3	F04/F05/F07	0.33	0.38	0.17	0
TORK-RA75.SR	60.4	29.8	58.5	27.9	F05/F07	0.48	0.57	0.5	0
TORK-RA80.SR	67.1	33.1	65	31	F05/F07	0.48	0.57	0.5	0
TORK-RA100.SR	111.2	69.4	90.8	49	F07/F10	0.63	0.95	0.73	0
TORK-RA120.SR	218.3	151.1	154	86.8	F07/F10	1.15	1.47	1.61	0
TORK-RA143.SR	362.5	230.3	215.5	347.7	F10/F14	3.2	3	2.85	0
TORK-RA160.SR	481.7	305.7	283.3	459.3	F10/F14	3.8	3.5	3.25	0
TORK-RA200.SR	836.7	607.8	663.3	892.2	F14/F16	4.8	4.4	6.41	0
TORK-RA270.SR	1955.8	1417.7	1568.4	1030.4	F16	5.3	4.75	13.75	0
TORK-RA350.SR	3121.4	1943.1	3129.2	1950	F16	6.2	5.3	25	0

Why Use Single Acting Pneumatic Actuator?
The preferred actuator type is the single acting actuators (spring return actuators) where the valve is requested to return to the first position when the power is cut. The spring return actuator is generally preferred in systems requiring safety.

ion of spring return actuator:

The torque values of the ed actuator at P: 6 bar control pressure are given in Nm. In this table, according to the ed values of the ed model (according to 90º) Nm values of the appropriate valve should be ed.

Note: Please refer to the values in the above table when ing the valve for the actuator. The torque of the valve must be 25% less than the actuator torque.

Actuator:

0º: start, closed position actuator

90º: End, open position actuator

Spring:

0º: Spring mounting position

90º: Release position compression

1 bar: 14.5 PSI; 1 Nm: 8.85 LB-in; 1 Kgm: 9,81 Nm