Deskripsi
Proportional Plate
ROTORK 33734‑04 Proportional Plate, a spare part used in Rotork IQ / IQT Series electric actuators.
- Type: Proportional control board (PCB)
- Model: Proportional Plate
- Part Number: 33734‑04
- System Compatibility: Rotork IQ / IQT actuators (2nd and 3rd generation, depending on revision)
- Brand : ROTORK
Product Overview:
The 33734‑04 proportional plate is an internal control PCB used in Rotork actuators. It provides proportional control capability, allowing the actuator to respond to analog input signals (e.g., 4–20 mA) for precise valve positioning. It interfaces with the actuator’s main control board and feedback system.
Specifications (typical for Rotork proportional boards):
| Feature | Specification |
|---|---|
| Function | Proportional control interface board |
| Input Signal | 4–20 mA, 0–10 V (depending on configuration) |
| Output | PWM / proportional motor drive signals |
| Resolution | 0.1% of full travel |
| Supply Voltage | 24 VDC logic supply |
| Operating Temp | −20 °C to +70 °C |
| Humidity | Up to 95% RH (non‑condensing) |
| Protection | Conformal coating, surge suppression |
| Mounting | Internal PCB, connects to main board via ribbon cable |
| Compliance | IEC 61010, IP68 (when installed in actuator housing) |
Dimensions & Weight:
- Size: ~180 × 120 × 25 mm
- Weight: ~300–400 g
Applications:
- Installed in Rotork IQ / IQT actuators
- Provides proportional control for:
- Valve position control (throttling service)
- Process automation requiring analog input response
- Used in:
- Power generation
- Oil & gas pipelines
- Water treatment plants
- Chemical and petrochemical automation
- Marine and HVAC systems
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