POWERFLOW CONTROL CO,. LTD.
Hangzhou Powerflow Technology Co., Ltd. Expertise in Flow Control.
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1. Product Description
The Electro-Pneumatic Positioner YT-1000 is used for operation of pneumatic linear and rotary valves by means of electrical controller or control system with an analog output signal of DC 4 to 20mA or split ranges.
2.Technical Datas
| Enclosure Material | Aluminum Diecasting |
| Set-point Signal | 4-20mA DC |
| Input Resistance | 250Ω |
| Stroke Control Range | 10-150 mm; 0-90° |
| Explosion Proof | Ex d II BT6; Ex d II CT6; Ex ia II CT6 |
| Ambient Temperature | -20 - 70℃ (Standard); -40 - 70℃ (Low Temp Type); -20 - 120℃ (High Temp Type) |
| Explosion Proof Temperature | -20 - 60℃ |
| Hysteresis | ± 1.0% F.S |
| Sensitivity | ± 0.2% F.S |
| Repeatability | ± 0.5% F.S |
| Flow Capacity | 80LPM (Sup =0.14MPa) |
| Protection Class | IP65 |
| Weight | 2.7KG |
3. YT-1000R Structure
4. Action principle
When the input signal, the torque motor (1) generate a electromagnetic field, the baffle (2) received and leave away from the nozzle(3). The air which in the pilot valve (4) will be elimination, and push the valve core (8), Air input to the actuator (11) through the base (7). With pressure increase, the push rod (12) go down, the feedback stem (13) pull the spring (16). Until the force between the spring (16)and the torque motor (1) keep balance, the baffle (2) go back. Then the valve core (8) gag the base (7)again, the positioner keep stable.
5. YT-1000R Product type selection