



















A manifold gauge set with two 2.5-inch diameter gauges, one blue for the low-pressure side and one red for the high-pressure side, is included with the refrigeration kit. Both gauges are precision-calibrated to provide accurate, stable readings throughout the service procedure, giving technicians the real-time pressure data necessary to make confident judgments during evacuation, charging, and system diagnostics without depending on estimation or secondary equipment.
The manifold body has an oversized sight glass that allows direct visual confirmation of refrigerant flow during charging and recovery. When working with refrigerants like R22, R134A, or R502, where charge rate and flow characteristics vary, and visual confirmation helps prevent overcharging, this feature is especially helpful. The manifold gauge set forms a coordinated, integrated service system that maintains an effective workflow from evacuation to final charge verification by connecting directly to the pump and hose set.
To prevent connection errors under pressure in the field, the kit comes with three color-coded rubber hoses (blue, red, and yellow), each assigned to a specific service function. In refrigerant work, where attaching the wrong hose to the wrong port can cause equipment damage or refrigerant leakage, color coding is important because it reduces risk without slowing the technician.
Each hose is made of high-quality rubber rated for high working pressure, maintaining flexibility and a reliable seal even after repeated heating-and-cooling cycles with various types of refrigerant. The technician has more options when handling tight or awkwardly positioned service ports without reaching for separate adapters, since the solid brass fittings at each end are machined at two angles: 45 degrees on one end and straight on the other. The fittings create a tight, leak-proof seal upon connection, preventing refrigerant loss and preserving system integrity during maintenance.
The majority of systems a field technician is likely to encounter are covered by this 1/3 HP vacuum pump, which is designed to operate with a wide range of refrigerants, including R22, R12, R134A, and R502. This cross-compatibility means you are making a single investment that manages vacuum packaging applications, commercial refrigeration units, automotive HVAC systems, and home air conditioning without needing specialized equipment for each refrigerant or system category.
By supporting various system port configurations found in both older and contemporary equipment, the accompanying AC adapter further enhances connectivity. The manifold gauge set, color-coded hoses, and other accessories are safely arranged in a carrying case between operations, preventing damage to precise parts and keeping everything in one location for quick on-site deployment. The pump, gauges, hoses, adapter, and case that a technician needs for expert refrigerant service are all included and ready to use right out of the box.
The die-cast aluminum design of the pump body keeps the unit light without compromising long-term durability or structural rigidity. Due to its superior thermal conductivity, aluminum effectively dissipates heat during prolonged evacuation runs and lowers the possibility of thermal stress accumulation within the motor housing. As a result, the pump does not experience the performance decline that occurs when lower-quality units run hot during extended maintenance sessions.
A composite rubber base beneath the pump absorbs vibration and prevents it from sliding across car service bays or workshop floors during use. The rubber base and aluminum housing work together to create a tool that is stable once positioned and easy to carry to the job site. Oil changes are quick and clean, and they do not require awkwardly repositioning the unit because the oil drain plug is right underneath the reservoir. All of these design decisions result in a pump that is suitable for everyday, practical field use.
This 1/3 HP vacuum pump has safety built in at the component level, not as an afterthought. When debris, a blocked port, or an abnormally large system forces the pump to work harder than normal operating conditions require, the integrated thermal protection circuit continuously monitors operating temperature. It automatically cuts power if the motor starts to overheat, a crucial safeguard in such situations. Such circumstances can swiftly ruin a pump motor and create a dangerous working environment if this protection is not in place.
For technicians who perform lengthy evacuation cycles on big commercial systems or back-to-back jobs with little cool-down time in between, this protection greatly increases the pump's service life. During prolonged work sessions in cramped areas such as plant rooms, roof-mounted AC enclosures, or vehicle cabins, the low-noise motor design further reduces operator fatigue. The end product is a pump that controls its own safety, maintains a quieter workplace, and provides more dependable service over a longer operational lifespan.
The VEVOR 1/3 HP vacuum pump reliably evacuates HVAC and refrigeration systems by drawing air at 4 CFM and is powered by a 246W motor operating at 1720 RPM. This pump achieves an ultimate vacuum of 5 Pa (0.05 mbar), ensuring complete system evacuation before refrigerant charging, whether you are servicing a home air conditioner, a commercial refrigeration unit, or an automobile HVAC system. That depth of vacuum is essential for removing moisture and non-condensable gases, which would otherwise reduce system efficiency and shorten component life.
The pump, which runs on 220V/50Hz, is compatible with common household and workshop electrical supplies and requires no special wiring. The single stage rotary vane design provides a constant vacuum depth on each task while simplifying operation and requiring little maintenance. With a 225 ml oil capacity and an easily accessible fill outlet for a clean, spill-free pour, checking and replenishing oil between service calls takes only a few seconds and keeps the pump operating at maximum efficiency.