EH Series Single Screw Pump

Product Name: EH Series Single Screw Pump (Progressing Cavity Pump)

Product Overview:The EH Series Single Screw Pump is a highly versatile positive displacement pump, expertly engineered for the demanding transfer of complex fluids. Unlike conventional pumps, the EH series excels at handling media with high viscosity, abrasive particles, or fibrous content. Its unique rotor-stator mechanism ensures a continuous, low-pulsation flow, making it an indispensable solution across diverse sectors including environmental protection, petroleum, chemical processing, food & beverage, and marine industries.

Key Features & Structural Advantages:

• Superior Media Adaptability: The standout feature of the EH series is its exceptional ability to transport a vast range of fluids. It handles viscosities from 0 to 200,000 cP with ease and can pump liquids containing solid particles (up to 30mm in diameter) or long fibers without clogging or damaging the medium's structure.

• Smooth, Low-Pulsation Flow: Operating on the progressing cavity principle, the pump creates sealed chambers that move axially to push the fluid forward. This results in a exceptionally steady flow rate with minimal pressure pulsation and vibration, which is ideal for sensitive processes and precision metering.

• Excellent Self-Priming Capability: The EH series boasts a powerful self-priming ability, eliminating the need for complex pre-filling systems. This feature significantly simplifies installation and daily operation, ensuring quick and reliable startup even with empty suction lines.

• Robust & Durable Design: The core components, including the single-helix rotor and double-helix stator, are designed for longevity. The pump's simple and compact structure makes it easy to install, maintain, and repair, minimizing downtime and operational costs.

• Gentle Fluid Handling: The internal cavity allows the medium to flow smoothly without turbulence. This ensures that the intrinsic structure of the conveyed material—such as flocculants, food products, or delicate chemical suspensions—remains completely intact and undamaged.

Technical Specifications:

• Flow Rate: Highly customizable based on specific model and speed

• Pressure Rating: Single-stage up to 0.6 MPa; Two-stage up to 1.2 MPa (customizable for higher pressures)

• Viscosity Range: 0 - 200,000 cP (centipoise)

• Solid Handling: Capable of passing particles up to 30mm and high fiber content

• Temperature Limit: Varies based on stator rubber material (typically up to 120℃)

• Material Options: Rotor (Stainless Steel, Carbon Steel); Stator (Various high-quality rubber compounds like NBR, EPDM, FKM to suit different chemical compatibilities)

Typical Applications:

• Environmental & Wastewater: Perfect for transporting sludge, sewage, and flocculants in water treatment plants due to its clog-resistant design.

• Food & Beverage Industry: Ideal for sanitary transfer of high-viscosity products like honey, syrups, dairy products, fruit pulps, and alcoholic beverages without altering their quality.

• Petroleum & Chemical: Widely used for crude oil, heavy oil, polymers, resins, acids, alkalis, and various abrasive or corrosive chemical suspensions.

• Marine & Shipbuilding: Serves reliably as a bilge pump, ballast pump, fuel oil transfer pump, and sludge pump on various types of vessels.

• Paper & Pulp: Excellent for conveying paper pulp, black liquor, and coatings in paper manufacturing processes.