Product details
Product Description
The WK-4S Vacuum Pump is a high-efficiency single-stage HVAC vacuum pump from the improved S Series, designed to deliver better performance, durability, and vacuum efficiency compared to standard models. With a 4.5 CFM flow rate, it is ideal for residential and light commercial air conditioning and refrigeration systems.
Featuring an enhanced internal structure and a reliable copper motor, the WK-4S ensures stable and consistent evacuation performance. It achieves an improved vacuum level of approximately 60 microns, making it more effective in moisture and air removal than basic single-stage pumps.
The unit is equipped with an oil mist filter for cleaner operation and a large oil sight glass for easy monitoring. Its compact yet powerful design makes it a practical choice for HVAC technicians seeking a balance between performance and cost.
Key Features
- Single-stage vacuum pump with improved S Series design
- 4.5 CFM (approx. 127–128 L/min) flow rate
- Enhanced vacuum performance (~60 microns)
- Durable copper motor for reliable operation
- Oil mist filter for cleaner and low-emission operation
- Large oil sight glass for easy oil monitoring
- Brass inlet ports for durability
- Compact and portable design
- Better performance than standard WK models
Technical Specifications
| Specification | Details |
|---|---|
| Model | WK-4S |
| Type | Vacuum Pump |
| Series | S Series |
| Stage | Single Stage |
| Flow Rate | 4.5 CFM (approx. 127–128 L/min @ 50Hz) |
| Ultimate Vacuum | ~60 microns |
| Power | 1/2 HP |
| Inlet Port | 1/4″ & 3/8″ Flare |
| Oil Capacity | ~300–350 ml |
| Design | Compact & Portable |
Applications
- HVAC system evacuation
- Residential and light commercial AC installation
- Refrigeration system servicing
- Moisture and air removal from systems
- Field and workshop operations
Frequently Asked Questions (FAQs)
Q1: What makes WK-4S different from WK series?
It offers improved vacuum performance and better efficiency as part of the S Series.
Q2: Is WK-4S single or dual stage?
It is a single-stage vacuum pump.
Q3: What is its flow capacity?
It provides approximately 4.5 CFM flow rate.
Q4: What vacuum level does it achieve?
It reaches around 60 microns, better than standard single-stage pumps.
Q5: Is it suitable for professional use?
Yes, it is suitable for both residential and light commercial HVAC applications.
