Druck PV411 Pneumatic and Hydraulic Pump SR NO 14921
The Druck PV411 is a high-performance, portable pressure calibrator and pump, renowned for its robustness and exceptional accuracy. It serves as a primary standard for calibrating pressure instruments, transmitters, switches, and gauges. The unique dual-mode operation allows it to generate pressure using either a built-in hydraulic system (for oil) or by connecting to an external pneumatic source (for gas), making it an incredibly versatile tool for calibration laboratories and field service technicians.
Key Identification:
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Model: PV411
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Type: Pneumatic / Hydraulic Pressure Calibrator Pump
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Serial Number (S/N): 08686
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Maximum Pressure: 700 bar (10,000 psi)
Detailed Features and Specifications
1. Dual Pressure Generation System:
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Hydraulic Mode: Uses internal hand pumps and a reservoir filled with high-purity, compatible oil (e.g., Druck DPM1, DC100, or similar) to generate very stable and high pressures up to 700 bar. Ideal for high-pressure hydraulic applications.
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Pneumatic Mode: Connects to an external, clean, dry air or gas supply (e.g., nitrogen bottle) to generate pressure. This mode is used for lower pressure pneumatic devices and is typically faster for repetitive tasks.
2. Precision and Performance:
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High Accuracy: When used with a high-accuracy pressure sensor (like the Druck DPI 104, which it was often bundled with), the system can achieve accuracies as high as 0.025% of reading.
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Excellent Stability: The precision-machined piston and valve system ensures highly stable pressure control, essential for precise calibration and measurement.
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Fine Pressure Control: Features a finely threaded control knob that allows for minute adjustments of pressure, enabling technicians to “dial in” on a specific pressure setpoint with ease.
3. Design and Construction:
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Robust and Portable: Housed in a durable, hard-case design with a comfortable carrying handle, built to withstand the rigors of field and workshop use.
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Intuitive Interface: The pump features clearly marked hydraulic and pneumatic ports, a fluid reservoir, and a vent valve.
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Materials: Constructed with materials compatible with both hydraulic fluids and non-corrosive gases to ensure long-term reliability.
4. Connectivity:
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Equipped with standard high-pressure connectors (e.g., 1/4″ BSP or NPT) for connecting to the Device Under Test (DUT).
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Separate ports for the pneumatic supply and hydraulic system.
Technical Specifications (Summary)
| Feature | Specification |
|---|---|
| Model | Druck PV411 |
| Serial No. | 08686 |
| Max Pressure | 700 bar / 10,000 psi |
| Media | Hydraulic (Oil) & Pneumatic (Clean, dry air/gas) |
| Operation | Manual (Hand Pump) for Hydraulic; External Supply for Pneumatic |
| Typical Use | Primary Pressure Standard / Calibration Pump |
| Accuracy | Dependent on the connected pressure module (e.g., 0.025% FS with a DPI 104) |
| Portability | Yes, portable hand-held unit |
Typical Applications
The Druck PV411 is used to calibrate and test a wide range of pressure equipment, including:
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Pressure Transmitters and Transducers
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Mechanical Pressure Gauges (Test Gauges)
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Pressure Switches
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Blood Pressure Monitors (for hydraulic simulation)
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Process control instruments in industries like Oil & Gas, Power Generation, Aerospace, and Manufacturing.















