Fork Pneumatic Actuator

The XM Series Fork-Type Pneumatic Actuator is suitable for on/off shutoff or metering control of 90°-travel valves (such as ball valves, butterfly valves, and plug valves). It can be combined with various accessories to achieve automated control in industrial processes. The principle involves compressed air entering the cylinder, driving the piston in linear motion. Through the transmission mechanism of the pin shaft and fork slide groove, the piston's linear motion is converted into the fork's rotational motion. This rotation drives the output shaft, thereby achieving valve control.
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Performance Features

Rubber seals in various materials and PFA-coated seals accommodate diverse operating conditions. The double O-ring seal and guide ring design ensures stability and reliability of the cylinder module.

The XM single-acting actuator delivers torque exceeding 140,000 Nm, while the XM double-acting version provides over 250,000 Nm. Operating pressure: 0.3–0.6 MPa.

The center housing module and cylinder module are constructed from ductile iron or carbon steel, ensuring sufficient strength. The overall structure is compact with an aesthetically pleasing design. The fork and piston provide optimal torque output characteristics.

Low-friction, long-life composite materials are used, eliminating direct metal-to-metal contact and enabling simple maintenance and replacement.

The output shaft complies with both NAMUR and ISO 5211 standards. Custom sizing is available upon request. The NAMUR standard indicator facilitates the installation of position switches, positioners, and other accessories.

Two independent stroke adjustment screws enable convenient and precise ±6° adjustment of the open and closed positions.



Tianjin Yibiao Valves Main Products:




Specifications
DN40-DN800
Material
WCB
Brand
Tianjin Yibiao
Model
YBFM
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