Your Professional Screw Pump Supplier
Our goal is to be your true partner in Oil-type Rotary Vane Pump field in China,Dongguan Dalutong Vacuum Equipment Manufacturing Co., Ltd. was established in 2003 and is located in Liaobu Town, Dongguan, Guangdong. It is a vacuum equipment manufacturer specializing in R&D, manufacturing, and sales, and is also a professional service provider for the maintenance of imported vacuum pumps. Dalutong uses Sino-German joint venture technology for production and manufacturing. It is the only manufacturer in the industry with 100% German and Japanese production equipment.
Why Choose Us
Our team
We have a development team of ten excellent designers who will develop new products according to the market.
Our certification
All products are manufactured under strict quality standards and have passed rigorous testing, meeting relevant ce and ISO requirements.
Applications
Our pumps are widely used in hvac, air conditioning and refrigeration, hot water pressurization, industrial processing, chemical industries, domestic water supply, fire protection systems, groundwater extraction, and sewage and wastewater treatment.
Service & support
We provide customer-oriented service with technical support available 24/7. Through established service networks, digital platforms, and partnerships, we offer efficient support, remote diagnostics, and customized solutions to minimize downtime and meet customer needs.
Advantages of Screw Pump
Efficient handling of high-viscosity fluids
Screw pumps are especially suited for pumping viscous liquids such as crude oil, molasses, sludge, or resins. Unlike centrifugal pumps, they do not rely on velocity to move fluid, enabling superior performance with thicker substances.
Gentle, low-shear operation
The non-pulsating, laminar flow produced by screw pumps ensures gentle handling of sensitive fluids. This is crucial in applications such as food processing, pharmaceuticals, and cosmetics, where shear-sensitive products must retain their integrity.
Consistent and predictable flow
Due to their positive displacement nature , screw pumps deliver a consistent volumetric flow rate regardless of pressure fluctuations, making them ideal for dosing, metering, or controlled transfer processes.
Solid handling capability
Certain screw pump configurations are capable of handling fluids with suspended solids, such as slurry or wastewater containing grit, without clogging or flow interruptions.
Self-priming ability
Screw pumps can self-prime, drawing fluid into the pump chamber even when the suction line is not flooded, which enhances operational flexibility and simplifies system design.
Quiet and smooth operation
Compared to gear or reciprocating pumps, screw pumps operate with minimal vibration and noise, improving workplace safety and comfort while extending mechanical lifespan.
Wastewater treatment
Sludge, scum, and thick effluent handling
Food & beverage
Transfer of viscous products like sauces, syrups, and dairy
Pharmaceutical & chemical
Precise, contamination-free fluid transfer
Oil & gas
Crude oil, multiphase fluid, and fuel transfer under pressure
Marine
Bilge water removal and fuel oil circulation
Product Description
|
Item |
Screw Pump |
|
Warranty |
1 year |
|
Customized support |
OEM / ODM |
|
Brand Name |
Dongguan Dalutong Vacuum Equipment Manufacturing Co., Ltd. |
|
Model Number |
DVX50 |
|
Place of Origin |
Dongguan China |
|
Pumping Speed |
46m³/h(50Hz); 54m³/h(60Hz) |
|
Ultimate Pressure |
0.1 Pa |
|
Motor Power |
1.1kW(50Hz); 1.5kW(60Hz) |
|
Motor Speed |
2900rpm(50Hz); 3500rpm(60Hz) |
|
Noise Level |
70dB(50Hz); 72dB(60Hz) |
|
Inlet Connection |
KF40 |
|
Outlet Connection |
KF25 |
|
Cooling Method |
Air-Cooled |
|
Lubrication |
Anti-wear Hydraulic Oil, Synthetic Gear Oil or Fluorinated Oil |
|
Inlet Seal |
Magnetic Seal |
|
Outlet Seal |
Magnetic Seal + PTFE Seal |
|
Weight (Without motor) |
28 kg |
|
Dimensions |
763*326*280 mm |
|
Dimensions (Explosion-proof motor) |
783*326*365 mm |
Delivery
|
Selling units |
Single item |
|
Single package size |
120X60X60 cm |
|
Single gross weight |
28.000 kg |
Lead Time
|
Quantity (sets) |
1 - 1000 |
> 1000 |
|
Lead time (days) |
31 |
To be negotiated |
Packaging & Shipping
FAQ
As one of the leading screw pump manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to wholesale bulk screw pump at low price from our factory.
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