ZQGSA series swinging nozzle actuatorDetailed product description：

The ZQGSA-D × S series swing nozzle actuator (also known as swing cylinder) uses compressed air as the power source, receives 4-20mA electrical signals or 0.02-0.1MPa gas signals, and produces direct displacement with signal changes, and pushes the regulated mechanism with a certain stroke. This product has the characteristics of simple structure, reliable use, strong wear resistance, light weight, high mechanical efficiency, and can be equipped with three break self-locking and valve position feedback functions. It is matched with the ZKY (FDK) actuator local control cabinet produced by our company and can accept 4-20mA electrical signals from DCS system for linear adjustment. It is widely used in the automatic adjustment of various control systems in industrial sectors such as power, metallurgy, light industry, chemical industry, petroleum, etc., especially suitable for the swing nozzle of large power plant boilers, valve opening adjustment, etc.

2、 Main technical parameters
Input signal: Gas signal: 0.02-0.1MPa
Electrical signal: 4-20mA DC
Gas source pressure: 0.3~0.8MPa
Work schedule: see Table 1
Basic error: ≤± 2%
Return difference: ≤ 1.5%
Dead zone: ≤ 0.6%
Operating environment temperature: -20 ℃ -100 ℃

Model D × S	Cylinder diameter (mm)	Travel distance (mm)	Cylinder thrust (N)	Output torque (N · m)
ZQGSA-250×400	Ø250	four hundred	twenty-four thousand and five hundred	four thousand
ZQGSA-300×400	Ø300	four hundred	thirty-five thousand and three hundred	seven thousand
ZQGSA-350×400	Ø350	four hundred	forty-three thousand	eight thousand and six hundred

Note: The calculated torque is the value obtained when the angle range is 0-90 °, the operating pressure is 0.5 MPa, and the efficiency is 100%. The minimum output torque occurs at 0 ° or 90 °, and the maximum output torque occurs near a 45 ° angle.