#screwpump

G single-screw pump is a critical piece of equipment widely used in wastewater treatment, sludge conveyance, and industrial waste management. These pumps are capable of handling thick, malodorous sludge, highly concentrated wastewater, and various industrial waste liquids—substances that would clog ordinary pumps within minutes. If routine inspections are neglected during operation, you risk equipment failure, leaks, and extremely difficult repairs.

After several months of pumping abrasive sludge, signs of wear or even corrosion may appear on the interior of the pump housing and the screw blades. This must not be overlooked, once the surface becomes rough or thinned, the pump will no longer be able to efficiently convey the material. Pay particular attention to the areas around the inlet and outlet ports. These areas are subjected to the most severe impact, as the fluid changes direction and velocity at these points.

Next, check the clearance between the screw blades. Every G-series pump is manufactured with a specific clearance between the rotor and the stator. As the pump operates, this clearance naturally increases due to wear. If the clearance becomes too large, the pump’s flow rate will decrease, pumping time will increase, or the motor may run with little to no fluid output.

Never overlook the motor and drive system, as the pump itself may be in good condition, but the equipment will not operate if there are problems with the motor or drive system. Check the motor’s insulation resistance, especially in humid environments. Inspect cable connections for corrosion or loose wires, as these can cause intermittent failures.

Fast solutions don’t come from guesswork. They come from experience—and that’s what builds trust.

From the refinery to the chemical floor, our Screw Barrel Pumps are built for high-viscosity transfer without the pulse. Smooth, constant, and essentially indestructible.

Handling thick, viscous materials made easy. Our screw barrel pump ensures smooth and efficient transfer where standard pumps struggle. Built for reliability in demanding industrial applications.

3G series screw pump is designed for conveying non-corrosive, lubricating media with temperatures ≥150°C and viscosities ranging from 5 to 760 cSt. It is commonly used in fuel transportation, hydraulic engineering, marine engineering, petrochemical, and other industries.

This series of pumps operates within a pressure range of 0.6-2.5MPa and a flow rate range of 0.6-123m³/h. Note that specific pressure and flow rates may vary depending on the model and application scenario. When using the 3G series oil screw pumps to convey liquids, the fluid undergoes uniform axial linear motion within the pump, accompanied by minimal pressure pulsations. This design ensures stable flow rates and low noise levels. Additionally, due to the low inertia of rotating components, both the pump's starting torque and vibration are exceptionally low. Compared to other rotary pumps, this pump exhibits a certain tolerance for air ingress and contaminants.

G series single-screw pump is widely used in the petroleum industry, heavy oil transportation, gasoline blending, oil-water separation and waste oil recovery systems, wastewater treatment, and other fields. Whether conveying high-viscosity media or materials containing solid particles, this pump effectively meets your transportation needs! The G Series single screw pump accommodates solid particles ranging from 3.5 mm to 22.8 mm in diameter. For example, the G-20 model can handle media with particles up to 3.5 mm in diameter and fibers up to 20 mm in length. Additional models are available for conveying media with larger particle sizes.

This machine employs a unique helical cavity structure formed by the meshing of an elastic stator with a rotor featuring large lead and large tooth height. A continuous sealing line within the stator cavity isolates the suction chamber from the pressure discharge chamber. As the rotor rotates, the cavity continuously moves along the directional axis, enabling continuous suction and discharge of the medium. This design minimizes pressure pulsation, particularly noticeable at low speeds, delivering stable delivery pressure. It is suitable for applications demanding high stability in both flow rate and pressure.

3GB series asphalt screw pumps are specifically designed for the efficient transportation and heating of high-viscosity asphalt materials, and are widely used in fields such as highway construction, bridge engineering, and municipal engineering. In particular, in the modern construction and road paving industries, asphalt pumps are often used as key equipment for transporting high-viscosity asphalt. The 3GB high-viscosity screw pump, with its superior design and technology, ensures smooth asphalt transportation even in low-temperature environments.

As a critical material in the modern construction and road paving industries, asphalt is widely used due to its exceptional durability and waterproof properties. However, due to its high viscosity, especially in low-temperature environments, asphalt has poor flowability, posing challenges for transportation. The 3GB heated screw pump, with its superior design and technology, is the ideal solution to address this challenge.