Electrical System Tools

About this product High-performance rotary vane vacuum pump in single- or two-stage versions with a 1/4 HP, 1/2 HP, or 3/4 HP motor. Flow rates range from 3.5 CFM (99 L/min) to 5 CFM (142 L/min) to 7 CFM (198 L/min). A maximum vacuum of up to 0.3 Pa ensures thorough evacuation during the maintenance and servicing of air conditioning and refrigeration systems. Stable continuous operation is ensured by a 4-pole motor and a robust housing made of cast iron and die-cast aluminum. An integrated fan assists with heat dissipation and reduces the risk of overheating during extended use in workshops or service areas. High compatibility is achieved through 1/4" SAE and 1/2" ACME connections on all models, as well as an additional 3/8" SAE connection on the two-stage versions. Suitable for common refrigerants such as R134a, R22, and R410a, and, depending on the model, also R1234YF and R32. User-friendly design with an integrated 200 ml or 250 ml oil reservoir and a transparent viewing window for quick oil level checks. Vacuum oil is included, allowing for immediate use. Versatile applications include refrigeration system maintenance, repair of air conditioning and ventilation systems, resin degassing, and wood stabilization. Suitable for professional service applications as well as demanding DIY projects. Key Differences The RS-1 model is a single-stage vacuum pump with 1/4 HP and 3.5 CFM, achieving a maximum vacuum of 5 Pa. It features 1/4" SAE and 1/2" ACME connections and is compatible with R134a, R22, and R410a. The 2RS-1 model is a two-stage pump with 1/2 HP and 5 CFM, achieving a significantly lower maximum vacuum of 0.3 Pa. In addition to 1/4" SAE and 1/2" ACME connections, it also features a 3/8" SAE connection. The 2RS-2 model offers the highest flow rate at 3/4 HP and 7 CFM. It also achieves an ultimate vacuum of 0.3 Pa and supports not only R134a, R22, and R410a, but also R1234YF and R32, making it suitable for a wider range of modern air conditioning systems. The 2RS-2 model offers the highest flow rate at 3/4 HP and 7 CFM. It also achieves an ultimate vacuum of 0.3 Pa and supports R1234YF and R32, making it suitable for a wider range of modern air conditioning systems. The 2RS-2 model also offers the highest flow rate at 3/4 HP and 7 CFM. Specifications Item Model Number: RS-1 Power: 1/4 HP 180 W Free Air Displacement: 3.5 CFM / 99 L/min Ultimate Vacuum: 5 Pa / 37.5 microns Air Inlet Connection: 1/4" SAE, 1/2" ACME Compatible Refrigerants: R134a, R22, R410a Item Model Number: 2RS-1 Power: 1/2 HP 375 W Free Air Displacement: 5 CFM / 142 L/min Ultimate Vacuum: 0.3 Pa / 2.25 microns Air Inlet Connection: 1/4" SAE, 1/2" ACME, 3/8" SAE Compatible Refrigerants: R134a, R22, R410a Item Model Number: 2RS-2 Power: 3/4 HP 550 W Free Air displacement: 7 CFM / 198 L/min Ultimate vacuum: 0.3 Pa / 2.25 microns Air inlet connection: 1/4" SAE, 1/2" ACME, 3/8" SAE Compatible refrigerants: R134a, R22, R410a, R1234YF, R32 Package contents: 1 x Vacuum pump 1 x Oil bottle (200 ml or 250 ml, depending on model) 1 x User manual