High Pressure Pneumatic Air Actuator , Air Torque Spring Loaded Double Acting Actuator

High Pressure Pneumatic Air Actuator , Air Torque Spring Loaded Double Acting Actuator

Pneumatic Actuator Overview

The pneumatic actuator is simple and compact in design, unique in style, fully sealed, modular, and internal air circuit, without the need to connect the pipeline to expose and damage. It is extremely convenient to install solenoid valves, signal echoes, valve positioners or other accessories. Designed for safe operation, easy to repair, easy to disassemble and assemble.
1. The outer casing is extruded by aluminum alloy, and the surface is hard anodized to prevent corrosion and wear. Light weight, beautiful appearance, reliable strength and sealing performance.
2. The alcohol acetal shaft gasket and the piston guide ring have a low frictional resistance and can absorb the lateral thrust of the piston.
3. The inner wall of the cylinder is honed to reduce the overall motion friction. At the top and bottom of the output shaft, the acetal bearing is installed to reduce the rotational friction resistance and prolong the service life.
4. The end cap and piston are made of aluminum alloy cast and refined. The output shaft is made of 316 stainless steel.
5. The opening indicator visually displays the position of "on" or "off", which is easy to remove for the wrench to operate.
6. The stroke adjustment screw can mechanically limit the rotation angle of the pneumatic actuator. It adjusts the position of the actuator on or off in the field.

Standard technical parameters

Indicator

NUMUR standard indicator, easy to install valve accessories such as limit switch, positioner.

Output shaft

Plating nickel alloy steel, high precision one-piece output shaft in accordance with NAMUR, with ISO5211

DIN3337 standard.

Cylinder

ASTM6005 die-casting aluminum alloy cylinder, with hard anodized

End caps

Die-casting aluminum powder spraying a variety of colors

Pistons

Double piston rack, adopts hard anodized aluminum or cast steel galvanized processing, symmetric mounting position, fast operation, long service life, simple upside down the piston can change the direction of rotation.

Travel adjustment

Two independent stroke adjustment screws can be easily and precisely adjustable of ?5 ?open and closed position.

Spring

High performance springs using high quality materials, coating treatment, pre-loading assembly.

Simply remove

the single-acting actuator, by changing spring quantity to meet different torque output range.

Bearing

Bearings, guide: Using low friction, long-life compound material, to avoid the direct contact between metals, repair and replacement are easy and convenient.

Seal

Normal temperature using nitrile butadiene rubber. High or low temperatures using fluorine rubber or silicone rubber

Control

Double acting, single acting

Annex

Available accessories: Reversing solenoid valve, Limit switch/ position monitoring switch, positioner, hand wheel device.

Installation

1, installation place

1.1 Indoor installation precautions
Non-explosion-proof products, so do not install them in indoors with explosive gases.
When installing in a place with water splash, please install a protective cover to protect it.
Please reserve the space required for incoming and manual operation.
1.2 Outdoor Installation Precautions
Please install a protective cover to ensure peace of mind
Note: Outdoor direct sunlight will cause high temperature, accelerate the aging of components, and even fail.
Rainwater will accelerate the aging of the pad and damage the product in an instant if the waterproof operation is not proper.

2, installation environment temperature, fluid temperature conditions

2.1 Ambient temperature:
When the ambient temperature is below zero, a dehumidification heater is installed in the machine;
2.2 Fluid temperature:
When the valve is used, the heat of the fluid will be transferred to the machine body, and the temperature of the machine body will rise. When the fluid temperature is high, the bracket connected to the valve should be specially treated (high temperature bracket must be used)
(a) Standard brackets Standard temperature brackets below +65 °C; (b) High temperature brackets Fluid temperature +60 °C or higher temperature brackets;

3, the connection flange with the valve, in accordance with the requirements of ISO5211/1, can ensure that the electric actuator and the valve are correctly connected through the valve stem joint.

Pneumatic valve accessories

Annex 1 Reversing solenoid valve
The electronic control operation for "turning on" or "off" the pneumatic valve acts as a switching air source. The solenoid valve complies with the NAMUR connection standard and can be divided into a mounted type and a separate type. The double-acting pneumatic actuator is equipped with a two-position five-way solenoid valve, and the single-acting two-position three-way solenoid valve can be manually operated. The structure is simple, compact and has a long life. The solenoid valve coil voltage has AC220V or DC24V low power consumption, and the explosion-proof encapsulation Ex m II BT4 and the explosion-proof Ex d II BT4 are optional. The company's solenoid valve is directly mounted on the actuator in a plate type.

Working principle Electromagnetic valve junction box wiring diagram

Annex 2 Limit switch (also known as echo)
The limit switch box feeds back the pneumatic valve position signal to the control room, directly mounted on the top of the pneumatic actuator, in accordance with VDI/VDE3845, built-in mechanical switch or magnetic induction proximity switch, and optional explosion-proof.
Built-in 2 mechanical switches 2-SPDT wiring diagram
Rating: 16A 1/2HP 125/250V AC 0.6A 125V DC 0.3A 250V DC

Annex 3 Air filter pressure reducing valve
Including air pressure reducing valve, filter, oil mister.

Function: gas source is stable, clean, and lubricates moving parts

Annex 4 Electrical Positioner
The electric positioner is one of the important accessories of the pneumatic regulating valve. It accepts 4-20mA control valve opening degree, and is divided into mechanical type and intelligent electronic type.

Mechanical positioner wiring diagram