Active Member
|
[China]
Address: Unit E, NO.11 XiYuan Eight Road, XiHu District, HangZhou City, Zhejiang Province, China.
Contact name:Monica Yu
POWERFLOW CONTROL CO,. LTD. |
|
|
1. Product Description
YT-1000 series electric-pneumatic valve positioner is a device
that receives DC current signal 4-20mA from the controller or the
control system,and the precisely controls valve opening through
pneumatic actuator.
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; |
| 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
YT-1000
4. Action principle
YT-1000L TYPE
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. Product type selection
