⚙️ Basic Specifications
Exhauster Method
Positive Displacement Pump
Work Function
Mainsuction Pump
Material: Impeller
Alloy Copper or Stainless Steel
Material: Body
Cast Iron or Stainless Steel
Voltage
220V/380V/Customized
Application
Plastic Extrusion; EPS Foam; Chemical
Certification
CE, SGS, ISO9001:2008, ISO14001:2004
📘 Product Overview
SK-4.5D liquid/water ring vacuum pump for EPS foam machine
SK-D series Liquid ring vacuum pumps are based on the SK-A design, featuring an added flange interface for easier installation and fixing. This pump series effectively solves common operational issues such as the inability to work continuously when absorbing large amounts of water, performance degradation due to water impurities, and startup failures after long periods of inactivity.
📊 Technical Parameters
| Model |
Motor (KW) |
Capacity (m³/min) |
Limit Vacuum (-Mpa) |
Inlet/Outlet |
Speed (r/min) |
Weight (Kg) |
Size (mm) |
| SK-0.15A | 0.55 | 0.15 | 0.095 | G3/4" | 2825 | 23.5 | 381x170x217 |
| SK-0.3A | 1.1 | 0.3 | 0.095 | G1" | 2840 | 33 | 460x180x235 |
| SK-0.8A | 2.2 | 0.8 | 0.095 | G1" | 2840 | 37 | 480x185x235 |
| SK-2A | 4.0 | 2.0 | 0.095 | G1 1/2" | 2880 | 63 | 560x220x286 |
| SK-3D | 5.5 | 3.0 | 0.095 | 50mm | 1440 | 118 | 688x340x371 |
| SK-4.5D | 7.5 | 4.5 | 0.095 | 66mm | 1440 | 150 | 800x380x388 |
| SK-6D | 11 | 6.0 | 0.095 | 66mm | 1460 | 198 | 854x380x425 |
💎 Key Advantages
- Direct connected, simple structure with a compact volume for space-saving.
- Impeller material: Alloy copper whole casting, manufactured in-house for superior durability.
- Pump chamber features a special coating treatment for anti-scaling performance.
- Equipped with customized anti-corrosion mechanical seals.
- All motors are CE certified and manufactured in-house to ensure high-quality standards.
- Equipped with a complete microcomputer-controlled testing system for 100% inspection.
🚀 Industrial Applications
Widely utilized in plastic extrusion lines, EPS foam machines, medical/pharmaceutical industries (autoclave sterilizers), food processing (beverages/milking), and chemical plants.
📦 Packaging & Shipping
All products are packed in standard export polywooden cases. We offer shipping via Express (door to door), Air (airport to airport), and Sea (port to port).
❓ Frequently Asked Questions
Are you a manufacturer or trading company?
We are a specialized manufacturer of vacuum pumps and water pumps with production experience dating back to 1986.
What is the Minimum Order Quantity (MOQ)?
Our MOQ is one set, making it accessible for both small projects and large-scale industrial needs.
What certifications do your products hold?
Our products are fully certified with CE and ISO 9001 standards, ensuring international quality compliance.
How long is the warranty period?
We provide a 12-month warranty from the date of delivery, covering manufacturing defects under normal usage conditions.
Can you provide OEM branding services?
Yes, we welcome OEM branding and can customize products according to your specific requirements.
How is the quality of the pumps ensured?
We use a micro-machine controlled testing system for every unit. Performance curves can be provided to clients before shipping.
Tongyi Machinery
