Greentech International (Zhangqiu) Co., Ltd.
Greentech Industry (Jinan) Co., Ltd.
When comparing 2BV water ring vacuum pumps, buyers often notice that several models have similar names but different specifications. The 2BV2, 2BV5, and 2BV6 series share the same general product family, but their configurations, motor options, capacity ranges, and protection features are not identical.
Choosing the right model is not just about finding a pump with a suitable suction capacity. Buyers should also consider the required motor configuration, explosion-proof requirements, installation conditions, and the level of equipment supplied. Understanding these differences makes it easier to compare quotations and avoid ordering a model that does not meet the project requirements.
The first step is to look at the role of each series and the configurations listed in the product specifications.
The 2BV2 series includes models such as 2BV2060, 2BV2061, 2BV2070, and 2BV2071. In the supplied specifications, these models have suction capacities ranging from 0.45 to 1.83 m³/min.
Their listed pump speeds are generally around 2,850–2,880 rpm. This speed range differs from the lower-speed 2BV5 and 2BV6 models shown in the same product data.
For buyers, the important point is to check the complete model number rather than selecting a pump based only on the 2BV2 series name. Different models have different capacities, motor requirements, and weights. The standard and explosion-proof versions must also be distinguished when reviewing the quotation.
The 2BV5 series includes models such as 2BV5110, 2BV5111, 2BV5121, 2BV5131, and 2BV5161. The supplied data lists suction capacities from 2.75 to 8.33 m³/min.
Compared with the listed 2BV2 models, the 2BV5 range covers higher capacities and generally operates at lower speeds, from 970 to 1,450 rpm in the supplied table.
These differences matter when comparing the complete equipment configuration. Buyers should verify the required motor power, rated speed, and capacity at the specified operating conditions instead of assuming that models with similar names share the same drive arrangement.
The listed 2BV6 models include 2BV6110, 2BV6111, 2BV6121, 2BV6131, and 2BV6161. Their suction capacities range from 2.75 to 8.33 m³/min, matching the corresponding values shown for the listed 2BV5 models.
A major difference in the supplied specifications is the explosion-proof motor designation. The 2BV6 models are listed with a dIIBT4 explosion-proof grade and IP55 motor protection, while the standard 2BV5 models are listed with IP54 protection and no explosion-proof designation.
This does not mean that every 2BV6 configuration automatically meets every hazardous-area requirement. Buyers should confirm the applicable certification, gas group, temperature class, equipment marking, and local regulations before ordering.
Capacity is an important starting point, but it should not be the only comparison criterion. The supplied specifications show how the product ranges differ.
The listed 2BV2 models cover 0.45–1.83 m³/min, while the listed 2BV5 and 2BV6 models cover 2.75–8.33 m³/min.
These figures help narrow the initial model range. However, the actual capacity should be checked against the required suction pressure and operating conditions. Buyers should request the relevant performance data rather than treating the listed capacity as guaranteed under every condition.
Motor power and pump speed should be reviewed together with capacity. For example, the supplied table lists the 2BV2060 at 1.1 kW and 2,880 rpm, while the 2BV5161 is listed at 20 kW and 970 rpm.
These examples illustrate the difference between individual configurations, not a direct efficiency comparison. A higher motor power does not automatically mean a pump is less efficient, and a lower speed does not automatically mean lower operating costs. A meaningful comparison requires equivalent operating conditions and verified performance data.
Explosion-proof requirements should be confirmed before the model is selected. A standard motor and an explosion-proof motor are not interchangeable choices when a project requires certified equipment for a hazardous area.
The 2BV2 range includes both standard models and models marked with the “-Ex” suffix. The supplied table also distinguishes standard 2BV5 models from 2BV6 models with the dIIBT4 designation.
When requesting a quotation, specify whether explosion-proof equipment is required. Confirm the exact motor marking, certification documents, protection grade, and suitability for the intended installation. Do not rely on the series name alone to establish compliance.
A quotation may cover the bare pump or a more complete package. The motor, separator, heat exchanger, valves, instruments, base, and other accessories can affect the final cost and delivery scope.
Before comparing prices, ask each supplier to list the included equipment and optional items clearly. Also confirm the motor specifications, electrical requirements, connection details, documentation, and spare parts.
The supplied table contains some inconsistencies in the alignment of motor power, protection grade, liquid flow rate, noise, and weight columns. These details should be verified against the manufacturer's original datasheet before they are used for purchasing decisions. In particular, do not assume that every value in the table is assigned to the correct column.
A practical selection process starts with the required capacity and operating conditions, then checks the motor, protection requirements, and complete supply scope.
Before placing an order, confirm the exact model, required suction pressure, capacity under working conditions, motor power, rated speed, explosion-proof requirements, and applicable certification. Request an official datasheet and quotation that clearly identify the configuration being supplied.
The 2BV2, 2BV5, and 2BV6 series should not be treated as interchangeable simply because they belong to the same product family. Comparing the exact model specifications and confirming the required options will help buyers make a more accurate technical and commercial decision.
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