Product details
Product Description
The WK-135SV Vacuum Pump is a reliable and efficient single-stage HVAC vacuum pump designed for evacuation of air conditioning and refrigeration systems. With a 3.5 CFM flow rate, it offers an ideal balance between performance and portability for residential and light commercial applications.
This model is equipped with a built-in solenoid valve to prevent oil backflow and a high-precision vacuum gauge for accurate system monitoring. The forced oil circulation system ensures proper lubrication, improving durability and extending service life.
Built with a high-quality copper motor, brass inlet ports, and an oil mist filter, the WK-135SV delivers clean, stable, and long-lasting performance, making it a dependable choice for HVAC professionals.
Key Features
- Single-stage vacuum pump for standard HVAC applications
- 3.5 CFM (100 L/min) flow rate for efficient evacuation
- Built-in solenoid valve to prevent oil backflow
- Integrated vacuum gauge for precise monitoring
- Forced oil circulation system for improved durability
- Oil mist filter for cleaner operation
- Large oil sight glass for easy oil level inspection
- Durable copper motor for reliable performance
- Brass inlet port for strength and longevity
- Compact and portable design
Technical Specifications
| Specification | Details |
|---|---|
| Model | WK-135SV |
| Type | Vacuum Pump |
| Stage | Single Stage |
| Flow Rate | 3.5 CFM (100 L/min @ 50Hz) |
| Flow Rate (60Hz) | 4.0 CFM (114 L/min) |
| Ultimate Vacuum | 150 microns |
| Power | 1/3 HP |
| Inlet Port | 1/4″ Flare |
| Oil Capacity | 240 ml |
| Dimensions | 303 × 127 × 249 mm |
| Weight | Approx. 8.3 kg |
Applications
- Residential HVAC system evacuation
- Air conditioning installation and servicing
- Refrigeration maintenance
- Removal of moisture and non-condensable gases
- Field and workshop operations
Frequently Asked Questions (FAQs)
Q1: Is WK-135SV a single-stage pump?
Yes, it is a single-stage vacuum pump.
Q2: What is its flow capacity?
It delivers 3.5 CFM at 50Hz and 4.0 CFM at 60Hz.
Q3: Does it prevent oil backflow?
Yes, it includes a built-in solenoid valve.
Q4: What is the vacuum level?
It achieves an ultimate vacuum of 150 microns.
Q5: Is it suitable for professional use?
Yes, it is ideal for HVAC technicians handling residential and light commercial systems.







