‌G-type single screw pump is a device used for transferring liquids, categorized as a rotary vane type positive displacement pump. It operates by the interlocking of the screw and sleeve, creating volume changes in the suction and discharge chambers to transport the liquid. The main working components of the G-type single screw pump include a sleeve (stator) with a double-headed helical cavity and a single-headed helical screw (rotor) that engages with it within the stator cavity.

Operating Principle

As the input shaft drives the rotor to rotate around the stator center via a universal joint, the stator-rotor pair continuously engages to form a sealed chamber. These sealed chambers maintain a constant volume and move axially at a uniform speed, transporting the conveying medium from the suction end through the stator-rotor pair to the discharge end. Since the screw rotates at a constant speed, the liquid discharge flow rate is also uniform.

Application Scenario

The G-type single screw pump is widely used in various industrial fields, including the oil industry, environmental protection, food industry, brewing industry, printing industry, industrial boilers, construction, mining, and chemical industry. It is particularly suitable for conveying high-viscosity fluids, media containing hard suspended particles, or fibrous media. The G-type single screw pump has strong adaptability to media, stable flow rate, low pressure pulsation, and high self-priming capability.

Technical Specifications

Flow Range: 0.8-150 m³/h

‌Scalping Range: 0-120m‌

‌Work Pressure: ≤2.5 MPa‌

‌Operating Temperature: -20℃ to 120℃‌

‌Overflow Material: Cast Iron, Stainless Steel‌

Pros and Cons

‌Advantages: Steady flow, stable pressure, strong self-priming capability, high adaptability to media, and easy maintenance._

‌Weaknesses: Complex structure, high cost.