A Progressive Cavity Pump is a type of a progressive cavity pump which has a rotor rotating within a housing called a stator. The rotor is always metallic and the stator is made up of a rubber type of material. It looks somewhat like a screw thread – the fluid is between the cavities and the rotary motion of the rotor forces the fluid through from one end to the other.
Progressing Cavity Pumps are used when a product needs to be handled gently and are used in all sectors of industries to convey almost all types of media continuously, smoothly, with low pulsation and dosing in proportion to speed. They are used for dosing applications where accuracy is required (multi stage pumps) their range covers from the smallest dosing pumps with flow rates of a few ml to high-performance pumps that pump up to 1000 m³/h.
One of the main advantages of a progressive cavity pump is that it is easy to regulate the flow of product simply by regulating the speed of the pump.
Specific designs involve the rotor of the pump being made of a steel, coated with a smooth hard surface, normally chromium, with the body made of a molded elastomer inside a metal tube body. The elastomer core of the stator forms the required complex cavities. The rotor is held against the inside surface of the stator by angled link arms, bearings (immersed in the fluid) allowing it to roll around the inner surface (un-driven). Elastomer is used for the stator to simplify the creation of the complex internal shape, created by means of casting, which also improves the quality and longevity of the seals by progressively swelling due to absorption of water and/or other common constituents of pumped fluids. Elastomer/pumped fluid compatibility will thus need to be taken into account.
Two common designs of stator are the “equal-walled” and the “unequal-walled”. The latter, having greater elastomer wall thickness at the peaks allows larger-sized solids to pass through because of its increased ability to distort under pressure. The former have a constant elastomer wall thickness and therefore exceed in most other aspects such as pressure per stage, precision, heat transfer, wear, and weight. They are more expensive due to the complex shape of the outer tube.
The progressive cavity pump is a widely used type of pump in industrial and engineering applications, known for its unique design and superior performance. Allweiler is a reputable brand in this field, offering high-quality progressive cavity pumps suitable for various operating conditions. Working Principle of Progressive Cavity Pumps The working principle of a progressive cavity…
Introduction The Allweiler progressive cavity pump is renowned for its exceptional performance and reliability, making it a staple in various industrial applications. This pump design allows it to handle a wide range of fluids, including viscous liquids and those containing solid particles. This article will provide an overview of the Allweiler progressive cavity pump, including…
Overview of Progressive Cavity Pumps Progressive cavity pumps are designed to transport viscous fluids. Their structure allows for the formation of multiple cavities within the pump body, enabling continuous fluid transfer. Key characteristics of these pumps include: Importance of the Aftermarket The aftermarket plays a crucial role in the lifecycle of progressive cavity pumps. Its…
In the industrial and engineering sectors, progressive cavity pumps are widely recognized for their unique operating principles and broad applications. This article will explore the structure, working mechanism, advantages and disadvantages, and applications of progressive cavity pumps. Basic Structure of a Progressive Cavity Pump A progressive cavity pump mainly consists of the following components: Working…
Introduction Progressive cavity pumps are essential devices widely used in various industrial sectors. Their unique structure and operating principle enable them to effectively transport viscous fluids and those containing solid particles. This article explores the basic construction, working principle, key features, and application areas of progressive cavity pumps. Basic Construction of Progressive Cavity Pumps The…
In the industrial and engineering sectors, progressive cavity pumps (PCPs) are gaining significant attention due to their unique design and superior performance. The working principle and wide application range of these pumps make them essential equipment in many industries. This article explores the basic concepts, working principles, main features, and common applications of progressive cavity…
Working Principle The core working principle of the screw pump is to use the rotational motion of the screw to transport fluid. Its structure usually consists of one or more screws and a fixed pump housing. As the screw rotates, the fluid is gradually pushed between the screw and the pump housing, thereby achieving continuous…
Parameters Performance: Non-blocking Material: Fluorine-lined Drive: Electric Flow: 51 m3/h Suction diameter: 150 mm Discharge diameter: 150 mm Speed: 230 rpm Lift: 120 m Model: BN1-12L Brand: seepex Through precise manufacturing processes, BN1-12L Stator ensures high-precision fit. Such a design not only improves the efficiency of the pump, but also reduces energy consumption, making the…
Parameters Brand: SEEPEX Suction diameter: DN10 (mm) Performance: Wear-resistant Discharge diameter: DN10 (mm) Flow rate: 0.1-0.7 (m³/h) Efficiency: 98% Drive mode: Electric Output flow: 200 Power: 0.55kW Shaft power: 0.55 Number of impellers: Single stage Working temperature: Normal temperature Pump shaft position: Horizontal Application: Metering pump Lift: 60m Material: Stainless steel Speed: 298 (rpm) Model:…
Parameters Brand: SEEPEX Impeller structure: Single impeller Flow rate: 50m³/h Impeller suction mode: Single suction Voltage: 380V Product features: Miniature Weight: 50kg Performance: High pressure Pressure: 1.2Mpa Application scope: Pharmaceuticals Lift: 120m Working pressure: 1.2 Drive mode: Electric Application: Metering pump Pump shaft position: Horizontal Material: Stainless steel Conveying medium: PAM Model: MD003-12 The MD003-12…
