P400 Hydra-Cell Pro Metering Pump

Seal-Less Metering Pump — 6 to 243 GPH, up to 1,000 PSI

The Wanner Hydra-Cell^® Pro P400 metering pump delivers flow rates up to 243 GPH at pressures to 1,000 PSI while conforming to API 675 standards for linearity, steady-state accuracy and repeatability. Its seal-less design produces a smooth, nearly pulseless flow that often eliminates the need for pulsation dampeners.

The P400 is a standard Hydra-Cell Pro Model D10 pump fitted with a right-angle gearbox. The gearbox mechanically reduces shaft speed, lowering the continuous torque requirement and allowing smaller motors and VFDs for metering duty.

Technical Specifications

Reliable Performance on Difficult Fluids

Because the P400 has no mechanical seals, cups or packing, it handles a wide variety of fluids with unmatched reliability — non-lubricating liquids, fluids containing particulate, high-viscosity media and extreme temperatures. The absence of dynamic seals also eliminates fugitive-emission paths.

The photograph above shows a P400 in a flavors-and-fragrances high-pressure spray-drying application where smooth, pulseless flow is essential.

Design Simplicity

The only components in contact with the process fluid are the elastomers and check-valve assemblies. Elastomers have no defined wear life (testing has exceeded 20,000 hours of continuous operation with no discernible wear). Check valves are the primary wear item and typically last 9–12 months of continuous service (approximately 6,570–8,760 hours).

Check valves are easily replaced without special tools, often in about 90 minutes and without removing the pump from the process line. A variety of check-valve materials is available for chemical and abrasion resistance. Many customers elect to replace the elastomers at the same time for convenience, although it is not required.

Flow Control

Instead of mechanical stroke-length adjustment (which complicates design and increases cost), the P400 controls flow by varying pump shaft speed. Most VFDs offer programmability and can interface with a customer-supplied PLC.

Complete pump/motor/VFD/PLC packages are available. Provide your design criteria and we will size the motor and optional controllers accordingly.

Additional Technical Resources

• P400 Hydra-Cell Pro Metering Pump Catalog Pages
• P400 Hydra-Cell Pro Metering Pump IOM Manual