ELECTRIC LINEAR TRAVEL MODULATING VALVE ACTUATORS

STZ are suitable for the closed loop control system of industry process and able to carry out reliable and accurate control on m

1.  SERVICE ENVIRONMENT

1.1 Power supply: Single phase, 220 V, AC, 50 Hz (or 110 V, 50 Hz. Other specific specifications are based on contract)

1.2  Environment temperature:  - 40°C ~ +60°C

1.3  Relative humidity:  ≤ 95% (+25°C)

1.4  Signals:  input, 4~20 mA DC;   output, 4~20 mA DC

1.5  Dead band:  0.5% ~ 7% adjustable

1.6   Duty:   S5 ( Intermittent operation with electric braking), Minimum duty factor 25%, Maximum operations 1200 times/hour

1.7   Protection:  IP 55

2.  MAIN PERFORMANCE PARAMETERS

Type		STZ10				STZ16
Nominal output thrust  N		4000	6300		10000	16000		25000
Travel      mm		30, 60				50, 100
Output speed  mm/s		0.8			0.65	0.8
Geared motor	Type	80YYJ-25F		80YYJ-40F		90YYJ-90F	90YYJ-120F
	Power	0.025kW		0.04kW		0.09kW	0.12kW
	Current	0.35 A		0.45 A		1 A	1.2A
	Voltage	Single phase 220V AC
	Ratio	15			20

Example for representation of type: STZ16000-0.8/50 means thrust 16000 N, output speed 0.8 mm/s, travel 50 mm.

Other specific specifications are based on contract or technical agreement, and this operation instruction will not be changed in general.

3. GENERAL DESCRIPTION

Electric Linear Travel Modulating Actuator is a new member of series CDF. These products are suitable for the closed loop control system of industry process and able to carry out reliable and accurate control on modulating valves. They are used extensively power plants, metallurgical industry, sewage disposal and ventilation.

The general performance of these products is conformed to the requirements of Standard JB/T 8219- Electrical Actuators for Industrial-process Measurement and Control System. These actuators are light in weight, small in size, easy to set and provided with accurate control and long time for service life. These actuators are provided with many protecting functions, such as interlocking in opening and closing, protection for over torque, and travel limit, etc.

ELECTRIC LINEAR TRAVEL MODULATING VALVE ACTUATORS