AT Series Pneumatic Actuator

AT series actuators which compact design, long life services, high quality, gear, and gear rack. This product is used for 90 ° rotational valves, such as ball valves, butterfly valves, plug valves, etc.

  • Price Term: FOB/CIF/EXW/DAP
  • Package: Exported Wooden case or according to customer request
  • Delivery Time:  7 to 10 working days
  • Transports: By sea, by air, by high express
  • Shipment Port: Shanghai Port
  • Origin of Place: Jiangsu
  • Warranty: 12 Months

BCST put the product quality as the first task, adopts the most advanced production and technology, stronger than the similar product on both product quality and performance. At series air operated actuator is the design is compact, the life is long, the quality is high, rack, s-like air operated actuator.

AT Series Pneumatic Actuator

1. Pneumatic actuator are integrated of new technologies, new materials, new innovative ideas based on the research, development, design, has the following characteristics:

2. Comply with the standard of ISO5211, DIN3337, and VDE-3845, NAMUR standards.

3. Extruded high-strength aluminum cylinder body, the inner surface of fine grinding and hard anodized, long service life, low friction coefficient, fast action.
4. Beautiful compact, modern styling,multi-standard products make the selection more economical.
5. All active surfaces are made of high-quality bearings, low friction, long life, no noise.
6. Two independent stroke adjustment mechanisms for easy adjustment of 土 5deg and fully open or closed position.
7. They are available in double-acting and single-acting(spring return), single-acting with normally closed and normally open.
8. The NAMUR standard multi-function position indicator visualizes and outputs all accessories.
9. Pre-compression load spring, installation, demolition of safe and convenient. Piston and end caps using die-cast aluminum alloy, high strength, lightweight.
10. Change the seal material can be used in high-temperature or low-temperature applications.
A solenoid valve can be installed without a connection plate.

Technical Specification

Pressure Range

Max Working Pressure:10bar

Double acting:2.5bar~8bar

Single acting:4.5bar~8bar

Temperature Range

Standard:-20°C~80°C Option:-35°C~80

Rotate Angle: 90° ±5%

Lubrication:All the kinetic components are coated with lubricants, make it have a long service life.

Life TimeOne million time

Pneumatic actuator related data

Model Double Acting Single Acting Single spring weight

(kg)

Open volume

(L)

Offward volume(L)
Open time (S) Close time(S) Approximate weight (Kg) Open time

(S)

Close time(S) Approximate weight(Kg)
AT052 0.3 0.4 1.38 0.4 0.4 1.48 0.01 0.11 0.14
AT063 0.4 0.4 2.03 0.5 0.5 2.23 0.02 0.2 0.23
AT075 0.4 0.5 2.85 0.5 0.6 3.15 0.03 0.31 0.39
AT083 0.5 0.6 3.13 0.6 0.6 3.63 0.05 0.41 0.55
AT092 0.6 0.7 4.6 0.7 0.8 5.2 0.06 0.62 0.91
AT105 0.7 0.7 6.8 0.9 0.9 7.8 0.1 0.97 1.21
AT125 0.9 1.1 10 1.3 1.4 11.6 0.16 1.49 1.87
AT140 1.2 1.4 13.3 1.6 1.8 15.6 0.23 2.43 3.2
AT160 1.6 1.7 20.2 2 2.3 24.1 0.39 3.65 5.03
AT190 2.6 3.1 31.5 3 3.3 36 0.45 5.9 7.9
AT210 3.3 3.8 47 4 4.4 55 0.8 7.4 9.7
AT240 3.8 4.4 67.6 4.5 4.9 80.9 1.33 10.7 14.3
AT270 4.5 5.3 97 5 5.7 117 2 16.9 22.5

 

 

AT Series Pneumatic actuator-BCST

Top connection size VDI/VDE3845NAMUR/standard, easy to box, positioner, and other accessories.

Flank connection size meets with VDI/VDE3845NAMUAT Series Pneumatic actuator-BCST

R standard, suitable for install solenoid valves.

AT Series Pneumatic actuator-BCST

Bottom connection size meets with ISO5211 and DIN3337 standard, with square and star holes can be connected with the valve directly.

 

 

Dimension AT Series Pneumatic actuator-BCST

Dimension AT Series Pneumatic actuator-BCST

Actuator Model A B C D E F G H e

O1

P1 P Z
AT052S/D 147 30 41.5 20 92 65 80 14 40 50 36 M5x6 M6x10 11 G1/4
AT063S/D 168 36 47 20 107.5 72 80 17 40 70 50 M6x10 M8x13 14 G1/4
AT075S/D 184 42 53 20 119.5 81 80 17 40 70 50 M6x10 M8x13 14 G1/4
AT083S/D 210 46 57 20 129 92 80 21 40 70 50 M6x10 M8x13 17 G1/4
AT092S/D 262 50 58.5 20 137 98 80 21 40 70 50 M6x10 M8x13 17 G1/4
AT105S/D 273 58 64 20 153 109.

5

80 26 40 102 70 M8x13 M10x16 22 G1/4
AT125S/D 301 68 74 30 175 127 130 26 56 102 70 M8x13 M10x16 22 G1/4
AT140S/D 400 75 77 30 193 137 130 32 56 125 10

2

M10x16 M12x20 27 G1/4
AT160S/D 458 87 89 30 218 158 130 32 56 125 10

2

M10x16 M12x20 27 G1/4
AT190S/D 525 103 103 30 260 189 130 40 80 140 M16x25 36 G1/4
AT210S/D 535 113 113 30 285 210 130 40 80 140 M16x25 36 G1/4
AT240S/D 595 130 130 30 319 245 130 50 80 165 M20x25 46 G1/4
AT270S/D 722 174 174 30 358 273 130 50 80 165 M20x25 46 G1/4

 

Failure phenomenon Inspection items Solution
(l)Whether the solenoid valve is normal, whether the coil is burned (1)Replace the solenoid valve, replace the coil,
out, whether the solenoid valve core is jammed by the dirty things. remove the dirt.
(2)To the actuator separate air supply test, whether the normal work, (2)Replace the bad seal, replace the cylinder or piston.
such as cylinder piston air, cylinder body, and end cap or shaft
Pneumatic leakage, etc., disassemble the actuator to check whether the seal has
valves been damaged, whether the cylinder bore surface has been damaged.
Do not operate (3)Impurities in the valve jam the spool. (3)Remove impurities and replace the damaged valve
parts
(4)The handle of the manual operating mechanism is in the manual (4)Move the handle to the pneumatic position.
position.
(5)Twisted and crushed pipes. (5)Correct or replace piping.
(6)The medium or ambient temperature is too low, causing the (6)Timely removal of condensate, additional water
pipeline to freeze. removal equipment.
(1)Insufficient pressure of air source. (1)Enhance the pressure of air source and set up
storage tank on the way to reduce the pressure

variation. (General test <0.4MPa, 0.4-0.7MPa in use)

(2)Insufficient airflow or simultaneous operation of other air-consuming devices. (2)Additional gas storage tanks and additional air compressors to reduce pressure variations.
Pneumatic (3)Pneumatic actuators with too little torque. (3)Increase actuator specifications.
Valves (4)Valve load is too large, the valve spool or other accessories device (4)Reconditioning, adjusting valve torque.
Sluggish is too tight and unreasonable.
movement (5)Large variations in cylinder friction. (5)Perform proper lubrication.
Crawling
(1)Valve action starts with jumping and excessive load. (1)Increase actuator specifications.
Other faults (2)Valve action ends with jumping, too fast action, too much inertia (2)Additional speed control valve or external buffer.
energy.
(1)Signal power line short circuit, broken circuit. (1)Repair of power lines.
Return signal (2)Inaccurate position of the convex horn. (2)Readjust cam to correct position.
No signal (3)Microswitch damaged. (3)Microswitch replacement.

Double-acting Principle of Operation(Standard Steering)

AT Series Pneumatic actuator-BCST

When the air pressure from the A port force the piston to move separately toward the end cap direction, the air is discharged from the B port to obtain counterclockwise rotation.

Working Principle AT Series Pneumatic actuator-BCST

When the air pressure from the B port forces the piston closed, the air from the A port discharge, so as to obtain clockwise rotation.

Single Acting Principle Of Operation (Standard Steering)

AT Series Pneumatic actuator-BCST

When the air pressure from the A port forces the piston to move separately toward the end cap while compressing the spring, the air is discharged from the B Port to obtain counterclockwise rotation.

AT Series Pneumatic actuator-BCST

Loss of air or loss of electricity, the spring closed the piston, the air discharge from the A, to obtain a clockwise rotation.

 

 

 

Double-acting Actuator Selection Example

Model Selection AT Series Pneumatic actuator-BCST

When using the actuator, determine the valve torque plus safety factor, the valve safety with different media, temperature, pressure, the friction between the valve core and the valve, and many other factors, affecting the operating torque. Known butterfly valve torque=130Nm, the use of water for the medium: room temperature, on-site gas source pressure of 5 bar, to a safety factor of 20% Calculation: Safe Torque:130+20%=156Nm.ln the control double-acting actuator torque meter, check the pressure in the column of 5bar.Find the data equal to or similar to 156Nm along this column, select 162.9Nm, look for the model left, and then select the XM-AT105 Model.

Single Acting Actuator Selection Example

Model Selection AT Series Pneumatic actuator-BCST

In the selection of first consideration of air pressure under the action of the moment and spring elongation under the torque.
Known butterfly valve torque=200Nm, the use of the medium for the steam: the use of temperature 160 ° C, on-site gas source pressure of 5.5 bar, to a safety factor of 25% Calculation: Safety Torque:200+25%=250Nm.
Control single action actuator torque meter: check the column pressure at 5bar, look for torque along the column(beginning and end), and then check to the right moment at which the spring stroke begins and ends. Check the results of the actuator model XM-AT160, spring 10, resulting in the following values:
Air pressure 0° =383Nm Air pressure 90° =277Nm
Spring stroke 0° =279Nm. Spring stroke 90° =385Nm
Note: Selected torque should be equal to or close to the safety torque!

 

NAMUR standard indicator for easy installation of position switches, locators and other accessories.

Output Shaft

Nickel-plated steel,high-precision integrated output shaft at the same time meet

NAMUR,ISO5211,

DIN3337 standards.

Can be customized according to customers’ size and stainless steel materials.

Cylinder Body

ATMS6005 extruded aluminum alloy cylinder body can be hard oxidation, oxidation, epoxy spray paint(blue, orange, yellow sprayed on request), PTFE coating, or nickel to meet different requirements.

End Cap

Die-cast aluminum alloy metal powder coating of various colors, PTFE coating, or nickel plating.

Piston   

Double-piston rack, with die-cast aluminum oxide or cast steel galvanized, the installation position symmetrical, rapid operation, long service life, simply reverse the piston can change direction.

Stroke Adjustment

Two independent stoke adjustment screws can be convenient, accurate 土 5 ° regulation on, off position.

High-performance spring

Imported high-quality materials, coating pretreatment combined type assembly, demolition simple and safe. Using high-quality materials, coating treatment,pre-press assembly.Has strong corrosion resistance and service life. It is safe and easy to disassemble the single-acting actuator and change the number of springs to satisfy different torque output ranges.

Bearings, guides

Low friction, long life composition materials, to avoid direct contact with metal and metal, maintenance and replacement are simple and convenient.

Sealing

At room temperature working conditions using NBR, in high temperature or low temperature with Viton or silicone rubber.

Ite m Quantity Name Standard Material Antiseptic treatment Option material
1 4 Indicator Polypropylene+GF
2 1 Indicator Plate Polypropylene+GF
3 1 Jump Ring Stainless Steel Nickel
4 1 Bearing Stainless Steel
5 1 Bearing Polyphthalamide
6 1 Body Extruded Aluminium Alloy Hard anodizing
7 2 Bearing Polyphthalamide
8 2 Piston Die Cast Aluminium Hard anodizing
9 2 O-ring Nitrile(NBR70) Viton/Silicone rubber
10 2 Bearing Polyphthalamide
11 8 Bolt and

Backstraps

Stainless Steel
12 2 Bolts Stainless Steel
13 2 End-cap Die Cast Aluminium Chromium+polyester coating
14 2 O-ring Nitrile (NBR70) Viton/Silicone rubber
15 2 Guide Polypropylene+GF
16 1 O-ring Nitrile (NBR70) Viton/Silicone rubber
17 1 Bearing Nylon46
18 1 Bearing Polyphthalamide
19 1 Cam Stainless Steel
20 1 Dirve shaft Steel alloy Nickel
21 1 Bearing Nylon46
22 1 O-ring Nitrile (NBR70) Viton/Silicone rubber
23 1 O-ring Nitrile (NBR70) Viton/Silicone rubber
24 2 Bolt&washer Stainless Steel
25 2 Nut Stainless Steel
26 2 Bolt Stainless Steel
27 min.5/max.12 Spring High alloy Spring Steel Epoxy resin coating
28 1 Spring Plate Polypropylene+GF

 

 

 

 

 

AT Series Pneumatic Actuator

Pneumatic Actuator by BCST

Solution Guide of AT Series Pneumatic Actuator

 

Failure phenomenon Inspection items Solution
(l)Whether the solenoid valve is standard, whether the coil is burned (1)Replace the solenoid valve, replace the coil,
out, whether the dirty things jam the solenoid valve core. Remove the dirt.
(2)To the actuator separate air supply test, whether the regular work, (2)Replace the bad seal, replace the cylinder or piston.
such as cylinder piston air, cylinder body, and end cap or shaft
Pneumatic leakage, etc., disassemble the actuator to check whether the seal has
valves been damaged, whether the cylinder bore surface has been damaged.
Do not operate (3)Impurities in the valve jam the spool. (3)Remove impurities and replace the damaged valve
parts
(4)The handle of the manual operating mechanism is in the manual (4)Move the handle to the pneumatic position.
Position.
(5)Twisted and crushed pipes. (5)Correct or replace piping.
(6)The medium or ambient temperature is too low, causing the (6)Timely removal of condensate, additional water
Pipeline to freeze. Removal equipment.
(1)Insufficient pressure of air source. (1)Enhance the pressure of air source and set up
storage tank on the way to reduce the pressure

variation. (General test <0.4MPa, 0.4-0.7MPa in use)

(2)Insufficient airflow or simultaneous operation of other air-consuming devices. (2)Additional gas storage tanks and additional air compressors to reduce pressure variations.
Pneumatic (3)Pneumatic actuators with too little torque. (3)Increase actuator specifications.
Valves (4)Valve load is too large, the valve spool or other accessories device (4)Reconditioning, adjusting valve torque.
Sluggish is too tight and unreasonable.
movement (5)Large variations in cylinder friction. (5)Perform proper lubrication.
Crawling
(1)Valve action starts with jumping and excessive load. (1)Increase actuator specifications.
Other faults (2)Valve action ends with jumping, too fast action, too much inertia (2)Additional speed control valve or external buffer.
Energy.
(1)Signal power line short circuit, broken circuit. (1)Repair of power lines.
Return signal (2)Inaccurate position of the convex horn. (2)Readjust cam to correct position.
No signal (3)Microswitch damaged. (3)Microswitch replacement.
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