AT Type Pneumatic Actuator Manufacturer and Suppliers Prices Flowspec Luokai

AT Type Pneumatic Actuator Product Information

AT type pneumatic actuator is one type of actuator to open, close or adjust the valve, which is driven by compressed air. It is also called as air operator or air equipment. Normally, AT type pneumatic actuator can be divided into single-acting pneumatic actuator and double-acting pneumatic actuator.
AT pneumatic actuator is one autoamtic unit of actuator and regulating mechanism. The actuator includes diaphragm type, piston type, scotch yoke type and rack-and-pinion type according to structure. The piston type actuator stroke is big, so it is mostly applicable to working condition that needs bigger thrust force. The diaphragm type actuator stroke is small, which can drive the valve stem directly. The scotch yoke type actuator is featured with big stroke, small space, and torque curve is more suitable the valve torque curve, but does not look nice, and it is mostly used with valve with big torque. The rack-and-pinion type actuator is featured with simple structure, reliable action and safe & explosion proof, it is widely applicable to working condition that require high safety specifications, such as power plant, chemical industry, oil refining and etc. AT type pneumatic actuator operated valve is driven by compressed air, and it is the drive device for starting and closing angle stroke valves such as ball valve and butterfly valve. Besides, it is the ideal device for realizing long-distance concentration of pipelines or separately controlling automatic industrial pipeline, when is equipped with solenoid valve, positioner (opening position indicator), echo device, filter, pressure reducing valve, various limit switches and hand operating devices.Flowspec Luokai can manufacture the AT type pneumatic actuator according to the standard of NAMUR, ISO5211 and DIN3337 with aluminum alloy body and stainless steel materials. Welcome to contact us for detailed information and best quotes if you have any questions or inquiries.

1. FEATURES

Mounting to valve either directly or via bracket
Conforming to European and International Standard EN ISO 5211, preferred dimensions
Double rack & pinion design
Double acting or Spring return models utilize the same compact body design
Aluminum body, hard anodized externally and internally, for corrosion and wear resistance
Adjustable travel stops
Safe end cover bolting requiring no special tools.
Anti blow-out drive pinion.
Namur air connection can be easily mounted with solenoid valve.
Parallel and diagonal, double square(star) drive.
Travel adjustment (at each end) ±5°.
Easy field conversion between double acting and single acting models.

3. STANDARDS

Medium used: clean, dry and non-corrosive compressed air
Working pressure of air source: 2.5 bar (36psi) to 8 bar (116psi)
Temperature of working environment: standard: -20 ~+80 deg C
High temperature type: -20 ~+180 deg C (the temperature can reach 200 in short time)
Rotary angle: 90° ± 5°
Electromagnetic valve power supply: AC220V/DC24V, or according to customers’ needs
Model: AT series

2. WORKING PRINCIPLE

When the compressed air enters the pneumatic actuator r through Nozzle A, the air will drive the double piston straightly move towards both ends of the cylinder and the piston rack will drive the gear of the rotary shaft by 90 degrees counterclockwise. In this case, the valve will be opened; the air in both ends of pneumatic actuator is discharged through Nozzle B.
On the contrary, when the compressed air enters both ends of the pneumatic actuator through Nozzle B, the air will drive the double piston to straightly move towards the middle position and the piston rack will drive the gear of the rotary shaft by 90°clockwise. In this case, the valve is closed. At this moment, the air in the middle of the pneumatic actuator is discharged through Nozzle A.
What is aforementioned is the transmission principle. According to customer’s needs, the pneumatic actuator can be equipped with transmission principles contrary to the standard type. In other words, the valve will be opened when the rotary s haft rotates clockwise, while the valve is closed when it rotates counterclockwise.
Single acting (spring return type) pneumatic actuation is implemented along the Nozzle A which is the air inlet, while Nozzle B is the air outlet (a muffler shall l be installed in the Nozzle B).
When Nozzle A inlets air, the valve will be opened, while the valve will be closed by the spring force when the air source is cut off.

Components Material

序号 N0	名称Name	单台数量 Qty for Each Unit	标准材料 Standard Material	可选材料 Materials Selectable
1	螺栓 Bolt	8	不锈钢 Stainless Steel
2	螺栓垫片 Bolt Washer	8	不锈钢 Stainless Steel
3	左端盖 Left Cover	1	压铸铝合金 Aluminum Die Casting	不锈钢Stainless Steel
4	弹簧组件 Spring Components	5-12	合金弹簧钢 Alloy Spring Steel
5	活塞环 Piston Ring	2	POM
6	O型圈(活塞 ) “O” Ring(piston)	2	丁腈橡胶 NBR
7	活塞 Piston	2	压铸铝合金 Aluminum Die Casting
8	导向环 Guide Ring	2	Pa66
9	轴承(轴下) Bearing(output shaft bottom)	1	POM
10	O型圈(轴下) “O” Ring(output shaft bottom)	1	丁腈橡胶 NBR	氟橡胶硅橡胶 FPM/Q
11	输出轴 Output Shaft	1	碳钢 Carbon Steel	不锈钢 Stainless Steel
12	凸轮 Cam	1	不锈钢 Stainless Steel
13	垫片 Gasket	1	POM
14	轴承(轴上) Bearing(at the top of the shaft)	1	POM
15	O型圈(轴上) “O”Ring(at the top of the shaft)	1	丁腈橡胶NBR	氟橡胶硅橡胶FPM/Q
16	螺母 Nut	2	不锈钢 Stainless Steel
17	调节螺栓 Adjustment Bolt	2	不锈钢 Stainless Steel
18	垫片 Gasket	2	不锈钢 Stainless Steel	氟橡胶硅橡胶 FPM/Q
19	O型圈 (调节螺栓) “O” Ring(adjusting bolt)	2	丁腈橡胶 NBR	氟橡胶硅橡胶 FPM/Q
20	O型圈 (端盖) “O”Rring(cover)	2	丁腈橡胶 NBR	不锈钢 Stainless Steel
21	右端盖 Right Cover	1	压铸铝合金 Aluminum Die Casting	氟橡胶硅橡胶 FPM/Q
22	堵头 Plug	1	丁腈橡胶 NBR	不锈钢 Stainless Steel
23	缸体 Block	1	挤压铝合金Aluminum Extrusion
24	垫片 Gasket	1	POM
25	垫片 Gasket	1	不锈钢 Stainless Steel
26	轴用挡圈 Shaft Ring	1	不锈钢 Stainless Steel
27	指示器固定架 Indicator Supporting Structure	1	ABS
28	指示器主体 Main Body of the Indicator	1	ABS
29	螺钉 Bolt	1	ABS

Dimensions and Connection(mm)

型号Model	AT042	AT050	AT063	AT075	AT088	AT100	AT115	AT125	AT145	AT160	AT190	AT210	AT240	AT270	AT300	AT350	AT400
ISOflange	F03/F05	F03/F05	F03/F05	F05/F07	F05/F07	F07/F10	F07/F10	F07/F10	F10/F12	F10/F12	F12/F14	F12/F14	F16	F16	F16	F16/F25	F16/F25
A	122	143	162	212	248	270	318	345	408	440	530	592	670	723	870	935	1035
B	55	68	84	100	115	126	145	157	178	196	233	255	292	332	355	410	466
C	20	20	20	23	23	23	23	33	33	33	33	33	33	33	33	33	33
D	18	18	19	20	20	20	20	30	30	30	30	30	25	25	25	25	25
E	12	12	16	16	19	19	24	24	29	29	38	38	48	48	48	48	48
F	33	40.5	46	52	56	67	78	80	91	100	112	121	130	147	173	195	260
G	24	29	36	41.5	49	56	64	71	80	88	105	116	130	147	161	190	260
K	10	11	11	17	17	17	17	27	27	27	27	27	36	36	36	36	36
L	50	80	80	80	80	80	80	80	130	130	130	130	130	130	130	130	130
M	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
N	4-M5×9	4-M5x9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9
。	50	50	50	70	70	102	102	102	125	140	140	140	165	165	165	254	254
P	4-M6×9	4-M6x9	4-M6x9	4-M8×12	4-M8×12	4-M10×15	4-M10×15	4-M10×15	4-M12×18	4-M16×24	4-M16×24	4-M16×24	4-M20×30	4-M20×30	4-M20×30	8-M16×24	8-M16×24
O1	36	36	36	50	50	70	70	70	102	102	125	125	—	—	—	165	165
P1	4-M5x8	4-M5x8	4-M5x8	4-M6×9	4-M6×9	4-M8×12	4-M8×12	4-M8×12	4-M10×15	4-M10×15	4-M12×18	4M12×18	—	—	—	4-M20×30	4-M20×30
Q	9	11	14	14	17	17	22	22	27	27	36	36	46	46	46	46	46
V	20	24	24	24	24	24	24	24	24	24	24	24	24	40	40	40	40
w	29	36	36	36	36	36	36	36	36	36	36	36	36	45	45	45	45
Y	4-M4×9	4-M5x9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M5×9	4-M6x10	4-M6×10	4-M6×10	4-M6×10
z	G1/8″	G1/8″	G1/8″	G1/8″	G1/8″	G1/4″	G1/4″	G1/4″	G1/4″	G1/4″	G1/4°	G1/4″	G1/4″	G3/8″	G1/2°	G1/2″	G1/2″

Double Acting Output Torque(Nm)

执行器型号 Actuator Model	2.5bar	3.0bar	3.5bar	4.0bar	4.5bar	5.0bar	5.5bar	6.0bar	7.0bar	8.0bar
AT042D	3.6	4.3	5	5.7	6.4	7.3	8	8.7	10	11.6
AT050D	8.3	10.0	11.6	13.3	15.0	16.6	18.3	19.9	23.3	26.6
AT063D	14.7	17.6	20.5	23.5	26.4	29.3	32.2	35.2	41.0	46.9
AT075D	29.1	34.9	40.7	46.5	52.3	58.2	64.0	69.8	81.4	93.0
AT088D	45.7	54.9	64.0	73.2	82.3	91.5	101	110	128	146
AT100D	66.5	79.7	93.0	106	120	133	146	160	186	213
AT115D	107	129	150	172	193	215	236	258	301	344
AT125D	138	166	194	221	249	277	304	332	387	443
AT145D	217	261	304	348	391	434	478	521	608	695
AT160D	283	340	397	453	510	567	623	680	793	907
AT190D	538	646	753	861	969	107	1185	1292	1508	1723
AT210D	658	789	920	1052	1184	1316	1447	1579	1842	2105
AT240D	966	1160	1352	1546	1740	1933	2126	2320	2706	3093
AT270D	1468	1761	2055	2349	2642	2936	3229	3523	4110	4697
AT300D	1908	2289	2670	3052	3434	3815	4197	4578	5341	6104
AT350D	2856	3427	3998	4570	5141	5712	6283	6854	7997	9139
AT400D	4069	4883	5697	6511	7325	8139	8953	9767	11394	13022

Single Action Output Torque(Spring Return)(Nm)

执行器型号 Actuator Model	弹簧数量 Spring Quantity	空气压力扭矩Air Pressure Torque
		4.5Bar		5.0Bar		5.5Bar		6.0Bar		7.0Bar		8.0Bar		弹簧复位扭矩 Spring Return Torque
		0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End	0° 开始 Start	90° 结束 End
AT050S	10	8.2	5.2	9.8	6.9	11.5	8.5	13.2	10.2	16.5	13.5	19.8	16.8	9.7	6.8
AT063S	10	15.3	9.4	18.2	12.4	21.1	15.3	24.1	18.2	29.9	24.1	35.8	29.9	16.9	11.1
AT075S	10	30.2	17.7	36	23.5	41.8	29.3	47.6	35.1	59.2	46.7	70.9	58.4	34.6	22.1
AT088S	10	45.6	24.5	54.7	33.7	63.9	42.8	73	52	91.3	70.2	110	88.5	57.8	36.7
AT100S	10	68.9	40.7	82.2	54	95.5	67.3	109	80.5	135	107	162	134	78.8	50.6
AT115S	10	111	62.1	133	83.6	154	105	176	127	219	170	261	212	131	82
AT125S	10	144	84	172	112	200	140	227	167	283	223	338	327	165	105
AT145S	10	227	133	270	177	313	220	357	263	444	350	531	437	258	165
AT160S	10	286	178	343	235	399	291	456	348	569	461	683	575	332	224
AT190S	10	440	210	656	426	765	535	871	641	1087	857	1302	1072	586	379
AT210S	10	473	253	737	517	605	657	1000	780	1263	1043	1526	1306	719	521
AT240S	10	887	566	1066	745	1246	923	1423	1102	1781	1459	2138	1817	1042	721
AT270S	10	1472	982	1758	1281	2059	1567	2345	1868	2932	2455	3519	3042	1490	1060
AT300S	10	1814	1074	2193	1458	2577	1837	2956	2221	3719	2984	4482	3747	2122	1460
AT350S	10	2531	1361	3105	1929	3673	2503	4247	3071	5390	4212	6532	5356	3405	2346
AT400S	10	3833	3041	4640	2653	5461	4669	6268	4281	7895	5908	9523	7526	4115	2624