Single Acting Ball valve pneumatic Actuator with limit switch OEM service

► Features

1, Structure is compact rack and pinion pneumatic actuators

2, Low friction ,long service life and the switching frequency is up to 1000000 times

3, Used for angular stroke valves, ball valves, butterfly valves and plug valves

4, Mounting flange in accordance to DIN/ISO5211,DIN3337,control valve with NAMUR standard

5, High quality aluminum alloy, the surface hard anodized + Teflon

6, Through a variety of certificate : ATEX, CE, MD, CQC certificate

7, All products in the factory, are to undergo a rigorous testing, each actuator are marked on the production code, easy identification and tracking service

8, High-end products, excellent quality, complete certification system

► Construction

1, Indicator:In field visible indicator and standard socket in accordance to VDI/VDE3845,NAMUR could be installed and export all the accessories such as limit switch cabinet,electric localizer and position sensor.

2, Pinion: The pinion is high-precision and integrative,made from nickelled-alloy steel,full conform to the lastest standards of ISO5211,DIN3337,NAMUR,The dimensions can be customized and the stainless steel is available.

3, Actuator Body: The extruded cylinder body is made of high quality aluminum alloy with fine machined socket and hard anodized outer surface( anodisation would be provided at special occasion + teflon coat)to prolong the service life and lower the coefficient of friction.

4, End caps: Die-casting aluminum powder polyester painted in different colours,PTFE or Nickel plated.

5, Pistons: The twin rack pistons are made from Die-casting aluminum treated with Hard anodized or made from operation,reversing rotation by simply inverting the pistons.

6, Travel adjustment: The two independent extemal travel stop adjustment bolts can adjust ±5° at both open and close directions easily and precisely.

7, High performance springs: Preloaded coating springs are made from the high quality material for resistant to corrosion and longer service life,which can be demounted safely and conveniently to satisfy different requirements of torque by changing quantity of springs.

8, Bearings&Guides: Made from low friction,long-life compound material,to avoid the direct contact between metals.The maintenance and replacement are easy and convenient.

9, O-rings: NBR rubber O-rings provide trouble-free operation at standard temperature ranges,for high and low temperature applications Viton or Silicone.

10, Fasteners: All the fasteners are made of stainless steel to be resistant to corrosion for a long time.

► Dimension

► Output torque of AT series pneumatic actuator with spring return (unit: nm)

Model	Air pressure(Bar)
		2		2.5		3		4		5		6		7		8		springs’output
	(Spring Q.ty)	0°	90°	0°	90°	0°	90°	0°	90°	0°	90°	0°	90°	0°	90°	0°	90°	90°	0°
		Start	End	Start	End	Start	End	Start	End	Start	End	Start	End	Start	End	Start	End	Start	End
SR-140	5	84	39	128	83													129	85
	6	66	12	110	56	154	100											154	102
	7			92	29	136	73	224	161	308	247							180	120
	8					118	45	206	133	294	221							26	137
	9							188	106	276	194	363	281					232	154
	10							170	79	258	167	345	254	433	342	521	430	257	171
	11									240	140	327	227	415	315	503	403	283	188
	12									222	113	309	200	379	288	485	376	309	205

► Application

► Package