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The ZEEPACK P3-C & P4-C Pneumatic Check Valve Pump redefines high-volume liquid dispensing by combining large dose capacity with uncompromised precision. Built for industrial-scale production, this series retains ZEEPACK’s signature ±0.5% dispensing accuracy while handling volumes up to 232mL (P4-4-C34)—a range that meets the needs of batch manufacturing. The P4-C line adds a patented pneumatic-electric control unit with stroke-end sensing, enabling automatic plunger retraction for 24/7 unattended operation. Like all ZEEPACK premium pumps, it’s fully constructed from 316 stainless steel, outperforming imported alternatives in harsh environments such as Li-Ion electrolyte bulk filling for EV batteries. For businesses scaling production without sacrificing quality, the P3-C & P4-C are the ultimate choice.
Model | Plunger Dia. | Stroke | Dispensing Vol. | Cycle Rate | Air Consumption | Dimension(MM) | Weight | |||||||
MM | MM | ML | CCP | L/Min. | A | B | C | D | E | F | G | H | KG | |
P1-C03 | 4.7 | 12.7 | 0-0.23 | 0-150 | 12.5 | 45 | 103 | 217.8 | 42.7 | 17 | 32 | 8-32 | 80 | 2.5 |
P1-C05 | 7.9 | 0-0.63 | ||||||||||||
P1-C07 | 11.1 | 0-1.2 | ||||||||||||
P1-C10 | 15.9 | 0-2.5 | ||||||||||||
P2-C10 | 15.9 | 25.4 | 0-5.0 | 0-120 | 23.5 | 52 | 134 | 293.4 | 63.5 | 12.7 | 38 | 8-32 | 97 | 4.2 |
P2-C12 | 19.1 | 0-7.2 | ||||||||||||
P2-C14 | 22.2 | 0-9.8 | ||||||||||||
P2-C17 | 27.0 | 0-14.5 | ||||||||||||
P2-C20 | 31.8 | 0-20.1 | ||||||||||||
The series covers diverse needs: P3-C models (P3-C20: 0-30mL; P3-C26: 0-50mL) handle mid-sized fills, while P4-C models (P4-1-C34: 0-58mL to P4-4-C34: 0-232mL) tackle large batches. This versatility makes it ideal for chemical liquid or solvent bulk transfer.
The P4-C series features a patented pneumatic-electric control unit with stroke-end sensing. This technology detects when the plunger finishes a cycle and automatically retracts it, eliminating manual intervention, reducing downtime, and ensuring uniform cycle times—critical for continuous production lines.
To address high-volume waste risks, P4-C models include leak-proof valves that prevent fluid seepage. This is a game-changer for expensive liquids like pharmaceutical solvents or Li-Ion electrolyte, where even small leaks translate to significant costs.
To support large-volume dispensing, the pumps have tailored air consumption: 40 L/Min for P3-C models and up to 115 L/Min for P4-4-C34. This ensures steady pressure and flow, even during 8+ hours of continuous operation.
Every part—from the plunger to the valve—is made of 316 stainless steel, resisting corrosion from industrial chemicals and solvents. This makes it far more reliable than carbon steel pumps in tasks like Heat Pipe fluid filling or detergent bulk production.
The ZEEPACK P3-C & P4-C Pneumatic Check Valve Pump is built for industries where "fast and precise" drives productivity. Key applications include:
Li-Ion electrolyte bulk filling for EV batteries and power banks
Chemical liquid batch dispensing (e.g., industrial coatings, cleaning agents)
Solvent large-volume transfer (maintaining purity for lab or manufacturing use)
Medicine bulk dosing (e.g., liquid antibiotics for hospital supply)
Heat Pipe fluid filling (ensuring thermal conductivity for electronics cooling)
Shampoo & detergent production-line filling (large bottles/jars for retail)
It automates plunger retraction via stroke-end sensing, cutting operator workload and ensuring consistent cycle rates (e.g., 60 cycles/minute non-stop). This is essential for 24/7 lines where manual adjustments cause delays.
Yes. The micrometer calibration and integrated speed control work together to preserve accuracy, even at 232mL. For critical applications, we recommend weekly calibration checks.
P4-C pumps use larger plungers (54.0mm diameter) to dispense more fluid per cycle. Higher air consumption (up to 115 L/Min) provides the pressure needed for smooth, consistent flow—preventing uneven fills in large batches.
