Flexible Configuration, High Cost Performance for Coating Metering

The Floteck GP Series gear metering pumps are engineered for 1K / 2K coating spray applications. Standard features include ±2% metering accuracy, fully quenched stainless steel construction with ADLC coating, integrated bypass and shaft flush functions within a single manifold block, and three displacement options: 1.5 cc/r, 3 cc/r and 6 cc/r.

▲ Floteck GP Series gear metering pump: fully quenched stainless steel body with full part ADLC coating

01 Accuracy

The GP Series is a positive displacement gear metering pump. Fluid output volume is directly determined by the gear displacement per revolution. A fixed volume of coating is delivered for each servo shaft revolution, independent of fluid viscosity.

Metering accuracy: ±2% (test conditions: 30-80 rpm, differential pressure ≤2 bar). Post spray touch ups to compensate for inconsistent film thickness after color change cycles are no longer required.

φ10 keyed drive shaft for direct servo motor coupling. Operating speed range: 10-200 rpm; dynamic response: 50 ms, well matched to robot cycle times.

02 Service Life

Pigments and fillers contained in primer and topcoat coatings are inherently abrasive media. Abrasive wear on conventional hardened steel components is the primary cause of reduced pump service life.

The GP Series comes factory equipped with fully quenched stainless steel wetted components and full part ADLC coating. High surface hardness resists abrasive wear, while a low coefficient of friction yields normal operating torque of only 1-2 N·m. The dense surface finish facilitates easy flushing and minimizes residual coating during color change cycles. No premium upgrade is required to achieve extended service life.

03 Color Change Performance

Total color change time equals fill time plus flush time. Many competing pumps optimize only one of these two aspects. The GP Series consolidates both functions inside one manifold block:

· Bypass function: Creates an internal short circuit flow path during pump startup for rapid priming of the pump and process piping.

· Shaft flush function: Directly injects solvent into the shaft seal zone to clear hard to reach residual coating from gears and shaft assemblies.

Three hardware configurations share identical pump body and interface dimensions, enabling future upgrades without mechanical redesign.

▲ Unit fitted with bypass and shaft flush options. Left: 45° front view; Right: manifold block / port side view

04 Model Selection

Full model list and accessory options in the table below:

NOTE: Accessory information

Part numbers 200146 and 200147 are sold as a matched set. They mount at the discharge port of the A side and B side pumps respectively, feeding real time fluid pressure data back to the control system.

05 Key Specifications

Coating viscosity range: 20-200 mPa·s. Compatible with water borne coatings, solvent borne coatings, 1 component (1K) and 2 component (2K) coatings.

Share your process conditions with us, and we will support your model selection.

Suited for automated spray lines for automotive exterior parts, 3C electronics, home appliances, furniture and hardware. The compact pump footprint allows direct mounting onto robot arms.