Yokogawa 43AP Pneumatic Indicating Controller Y/43AP-YA4N/GAS-FM//PR1/Z Available
Product Description:
Yokogawa 43AP Pneumatic Indicating Controller
Brand: Yokogawa Electric Works, Ltd.
Model/Style: 43AP Series (Style B)
Part Number (P/N): Y/43AP-YA4N/GAS-FM//PR1/Z
Serial Number: 247EG022
Year of Manufacture: 1982
Country of Origin: Japan (Yokogawa Electric Works, Ltd. Tokyo, Japan)
Condition: Used/Authentic Industrial Surplus (Physical unit complete with intact internal/mechanical pneumatic components, fully legible nameplate, external air filter regulator, and pressure gauge).
Fits For & Applications:
- Designed to measure, indicate, and automatically control process variables such as pressure, differential pressure, temperature, or liquid level in pneumatic control loops.
- Ideal for oil & gas refineries, chemical/petrochemical plants, water treatment facilities, and power plants requiring non-electric control in hazardous environments.
Key Components & Features:
- Clear Visual Display: Large 156 mm (6 in) nominal dial scale with high-visibility fluorescent red pointers.
- Integrated Air Set: External air filter regulator and supply pressure gauge assembly included.
- Rugged Construction: Heavy-duty aluminum alloy enclosure with polyurethane paint finish, rated IP53 / NEMA 3 for harsh environments.
- Pneumatic Mechanism: Features receiver bellows assembly (PR1) for accurate proportional plus integral control.
Key Technical Specifications:
- Control Mode: Proportional plus Integral (-A4)
- Supply Pressure: 1.4 kg/cm² (≈ 20 psi / 140 kPa)
- Measurement / Scale Range: −30 to +40 mmH₂O
- Output Signal Range: 0.2 to 1.0 kg/cm² (≈ 3 to 15 psi / 20 to 100 kPa)
- Indicator Accuracy: ±0.5% of span
- Air Consumption: 0.5 m³/h (at standard conditions 0°C, 101.3 kPa)
- Operating Temperature: −30°C to +80°C
- Connections: JIS Rc1/4 female / 1/4 NPSF process & air connections
- Weight: ≈ 7.6 kg (17 lbs)
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