The ST-4BM two-stage vacuum pump is a device designed for professional use in larger refrigeration, air conditioning and heat pump systems where it is important to quickly achieve a stable, deep vacuum. A capacity of 127 l/min combined with two-stage compression technology allows for the effective removal of moisture and non-condensable gases from complex HVAC-R systems. The ST-4BM model is equipped with a vacuum gauge for continuous monitoring of the evacuation process and a solenoid valve.

Main advantages:

• High capacity of 127 l/min – ideal for larger and more complex installations
• Two-stage compression technology – fast achievement of a deep vacuum (2 Pa) and stable operation during longer cycles
• Built-in vacuum gauge – precise control of vacuum parameters in three units (inHg / psi / mbar)
• IP54 resistance – reliability in more difficult service conditions and increased durability of the housing
• Compatibility with HFC, HFO refrigerants, including A2L – versatility in line with current industry standards.