DINKONDA GLOBAL Power Plants Special AW Series Double Acting Fork Type 90 ° Output Angle, Air Source Pressure 0.4-0.7Mpa Pneumatic Actuator

DINKONDA GLOBAL Power Plants Special AW Series Double Acting Fork Type 90 ° Output Angle, Air Source Pressure 0.4-0.7Mpa Pneumatic Actuator

Product Overview

The AW series double acting fork pneumatic actuator is a bi-directional air source driven actuator developed by Baide Automation for large-diameter and high torque valve operating conditions. It relies on alternating intake of air from both cylinders to drive the internal fork mechanism to complete a 90 ° turning action. There is no built-in reset spring, and the entire switching action is powered by compressed air output. This series focuses on stable and high torque output, with a wide range of torque ranges. It is the main model for driving large butterfly valves, ball valves, and plug valves, and is widely compatible with industrial pipeline self-control systems that require continuous adjustment and frequent switching. It is suitable for process circuits that require fault free safe reset and focus on continuous and stable driving.

Structural Composition

The whole machine adopts a split type cast steel cylinder body and a shift fork transmission core structure. The main body includes a left and right symmetrical cylinder assembly, piston components, shift fork pin shaft transmission pair, output flange, stroke adjustment mechanism, and side mounted manual operation components; The top integrated standardized installation platform can be matched with pneumatic triplets, explosion-proof solenoid valves, valve position feedback feedback devices, and pneumatic/electrical valve positioners as needed. The air circuit is connected by stainless steel hard pipe joints, and the pipeline layout is neat. All transmission pairs and seals are independent modular spare parts, making on-site disassembly and maintenance convenient. The fork structure is different from conventional gear rack actuators, and the torque gain characteristics are adapted to the peak load at the moment of valve opening and closing.

Core Features

1. * * Dual source bidirectional drive, controllable action response * *: relying on the intake of air from both sides of the air chamber to achieve opening and closing actions, the output torque in both directions can be independently adjusted by the air source pressure, which can match the working conditions of inconsistent valve opening and closing loads; Maintaining the current position when the gas is cut off belongs to the structure of gas loss and retention.

2. * * Fork Transmission, Peak Torque Amplification * *: The mechanical structure of the fork automatically amplifies the output torque at both ends of the stroke, accurately matching the maximum torque demand at the moment of valve start-up and closure. Compared with gear rack actuators of the same specification, it has stronger load-bearing capacity and is suitable for large-diameter metal hard sealed valves.

3. * * High strength cast steel shell, resistant to impact and working conditions * *: The cylinder body and box body are integrally formed with cast steel, and the outer surface is coated with epoxy blue anti-corrosion coating, which is resistant to bumps and humid environments; The piston guide sleeve is made of wear-resistant composite material, which has low wear during long-term high-frequency reciprocating operation and is suitable for continuous and frequent opening and closing scenarios.

4. * * Precise stroke adjustment, compatible with valve zero position calibration * *: External adjustable limit screws are installed at both ends to fine tune the fully open and fully closed positions within ± 5 ° range. During on-site installation, the valve sealing surface is directly aligned and calibrated to reduce assembly and debugging difficulties, ensuring that the valve is closed and sealed in place.

5. * * Strong expandability of attachments and flexible self-control scheme * *: The top installation interface complies with the ISO5211 international standard and can be directly equipped with a locator to achieve 4-20mA analog adjustment. It can also be paired with a switch type solenoid valve and explosion-proof feedback device to achieve remote switch control; Explosion proof conditions can be fully equipped with Exd Ⅱ CT4/T6 grade accessories.

6. * * Equipped with side mounted manual mechanism, offline operation * *: Standard with independent manual operation components. During gas source maintenance and system shutdown debugging stages, valve switches can be manually driven without gas supply, facilitating pipeline pressure testing, maintenance, and troubleshooting.

Technical Parameters

-Type: Double acting fork type pneumatic actuator (loss of air protection position)
-Working medium: clean and dry compressed air, recommended air source pressure of 0.4-0.7MPa
-Output angle: Standard 90 °, can be customized with special angles as needed
-Environmental applicable temperature: -20 ℃~+80 ℃, optional high and low temperature special sealing version
-Protection level: IP65
-Connection standard: ISO 5211 valve drive connection standard
-Output torque range: covering the full range of AW high torque specifications
-Optional configurations: electrical locator, explosion-proof solenoid valve, valve position transmitter, air filter pressure reducing valve
-Surface coating: sandblasting rust removal+epoxy anti-corrosion paint