Brand and Product Positioning

Roquet Spain focuses on the research and production of gear pumps and fluid conveying equipment, with products covering multiple types such as internal gear pumps and external gear pumps, suitable for fluid conveying needs in industrial, chemical, food and other fields. With stable conveying performance, Roquet provides fluid conveying support for various production processes.

2、 Core technical features

（1） Stable and efficient fluid transport capability

Roquet gear pump adopts precision gear meshing design, with optimized gear tooth profile and precise control of meshing clearance, which can reduce fluid leakage and improve volumetric efficiency. The volumetric efficiency of conventional models can reach 85% -92% (adjusted according to the viscosity of the medium). During the conveying process, the flow output is stable with a low pulsation rate (≤ 3%), suitable for scenarios where flow stability is required (such as precision filling and metering conveying), to avoid affecting production process parameters due to flow fluctuations. At the same time, the internal flow channel design of the pump body is smooth, with low fluid resistance, and can adapt to media of different viscosities (from low viscosity lubricating oil to high viscosity resin). The conveying pressure range covers 0.5-20 bar, meeting the pressure requirements of most industrial fluid conveying.

（2） Durable structure and material compatibility

The main body of the pump body is often made of cast iron or stainless steel materials (such as 304, 316L). Cast iron materials are suitable for transporting conventional oil and water-based fluids, while stainless steel materials can withstand mild corrosive media (such as weak acid and alkali solutions, food grade liquids) and meet the needs of special industries such as chemical and food. The gears and shafts are made of high-strength alloy steel, which is strengthened by heat treatment and has a surface hardness of HRC58-62. It has good wear resistance and fatigue resistance, extending its service life; The bearings are made of specialized needle roller bearings or deep groove ball bearings, with built-in long-lasting lubricating grease. The sealing structure is made of materials such as nitrile rubber and fluororubber, which can be flexibly selected according to the characteristics of the conveying medium, reducing the erosion of the medium on the seals and lowering the risk of leakage.

（3） Low noise and installation flexibility

By optimizing gear meshing parameters, improving component machining accuracy, and reducing mechanical vibration and noise during operation, the operating noise of conventional models can be controlled below 70dB (A) (measured at 1 meter), suitable for workshop environments with certain requirements for noise control (such as food processing and pharmaceutical production workshops). In terms of installation methods, it supports both horizontal and vertical installation forms, which can be flexibly selected according to equipment layout and space requirements; There are various specifications for import and export interfaces (such as threaded interfaces and flange interfaces), which can be directly connected to existing pipeline systems without the need for additional customized adapter components, simplifying the installation process and reducing integration costs.

（4） Convenient maintenance and adaptability expansion

The product structure design is simple, with modular assembly of key components such as gears and seals. Disassembly and replacement do not require dismantling the entire pump body, and daily maintenance only requires basic tools, shortening maintenance time and reducing maintenance difficulty. Some models support the installation of auxiliary components such as filters and pressure safety valves, which can be expanded according to actual needs. For example, installing an inlet filter to prevent impurities from entering the pump body and damaging the gears, installing a pressure safety valve to avoid equipment damage caused by high system pressure, and improving safety and adaptability during use.

3、 Main application scenarios

（1） Industrial lubrication system

Roquet gear pumps are used in industrial equipment such as machine tools, compressors, and generators to transport lubricating oil and provide lubrication for moving parts such as equipment bearings and gears. Stable flow output ensures even oil supply to lubrication points, avoiding component wear caused by insufficient lubrication. It is suitable for scenarios such as mechanical processing workshops and power plants, ensuring long-term stable operation of equipment. For example, in CNC machine tools, cast iron gear pumps are used to transport guide rail lubricating oil, which has low noise characteristics and adapts to the machining environment of the machine tool. Precise flow control ensures the lubrication effect of the guide rail and improves the machining accuracy of the machine tool.

（2） Chemical Engineering and Fluid Transport

In the field of chemical production, stainless steel Roquet gear pumps can be used to transport low viscosity solvents such as methanol, ethanol, and ethylene glycol, or medium to high viscosity fluids such as coatings and adhesives. 316L stainless steel material is resistant to mild corrosion and suitable for the medium transportation needs of chemical workshops; The stable flow characteristics ensure the continuity of raw material transportation during the chemical reaction process, avoiding the impact of flow fluctuations on reaction efficiency. For example, in the paint production workshop, an external gear pump is used to transport semi-finished paint products, with a smooth flow channel design to reduce paint residue, facilitate cleaning, and adapt to the paint batch production process.

（3） Food and pharmaceutical industry

The food grade Roquet gear pump (with 316L stainless steel pump body and food grade seals) can be used to transport food raw materials such as milk, juice, syrup, or liquids such as pharmaceuticals and oral liquids in the pharmaceutical industry. The material complies with food hygiene standards such as FDA and EU 10/2011, with surface polishing treatment (Ra ≤ 0.8 μ m), no hygiene dead corners, and easy CIP online cleaning to avoid raw material contamination. For example, in a juice processing plant, an internal gear pump is used to transport concentrated juice, with low pulsating flow to ensure that there are no excessive bubbles generated during the juice transportation process, ensuring the quality of the juice.

（4） Automobile and Machinery Manufacturing

In the automotive parts production workshop, Roquet gear pumps are used to transport cutting fluid and coolant, and to cool and lubricate the cutting tools and workpieces of machining equipment such as lathes and milling machines. The cast iron pump body is resistant to mild erosion by cutting fluid, with a stable flow rate to ensure even spraying of cutting fluid, improving machining efficiency and workpiece surface quality. In addition, in the automotive assembly process, gear pumps can also be used to transport auxiliary materials such as sealant and lubricating grease, with precise flow control to ensure even application of sealant and improve the sealing performance of automotive components.

（5） Agriculture and Agricultural Machinery Equipment

In the field of agriculture, Roquet gear pumps can be adapted to agricultural machinery equipment such as tractors and harvesters, and are used to transport media such as diesel and hydraulic oil, providing power support for the power and hydraulic systems of agricultural machinery. Durable structural design that can withstand vibrations and bumps during agricultural machinery operations, and adapt to complex outdoor field environments; The wide viscosity adaptation range can meet the transportation needs of oil media in different seasons (such as low temperature winter, high temperature summer), ensuring the normal operation of agricultural machinery under different working conditions.