GOFLEX PUMP

2BVA5111 Liquid Ring Vacuum Pump

The GOFLEX 2BVA5111 (2BV5 111) is a liquid ring vacuum pump option for review against your process flow and working pressure. Compare the listed displacement, motor rating and rotational speed under the same electrical and test conditions. Request the performance curve and confirm the service-liquid temperature, flow and supply arrangement; maximum displacement and limiting pressure are separate selection values unless the curve establishes the operating point.

For chemical, pharmaceutical or wastewater equipment, provide gas composition, vapour and particle load, duty cycle, vessel volume and evacuation target. Confirm casing and impeller materials, seal compatibility, flange dimensions, cooling, separation, recirculation or discharge treatment, and protective controls. Assess contamination and liquid carryover requirements for the complete system. Verify application-specific validation, continuous-duty capability, noise measurement conditions and maintenance requirements for the quoted configuration.
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Blue pump with two large top flanges and a ribbed electric motor.

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Water ring vacuum pump series collage showing blue and gray pump assemblies with electric motors and upright ports.

Specification

2BVA Series Liquid Ring Vacuum Pump Technical Specifications

Model / Parameter2BVA2060 (2BV2 060)2BVA2061 (2BV2 061)2BVA2070 (2BV2 070)2BVA2071 (2BV2 071)2BVA5110 (2BV5 110)2BVA5111 (2BV5 111)2BV5 1212BV5 1312BV5 161
Max Air Capacity (m³/min)0.450.861.331.832.753.834.666.668.33
Ultimate Vacuum (-MPa / mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)0.097 (33 mbar)
Motor Power (kW)0.811.452.353.854.05.57.511.015.0
Pump Speed (r.p.m)28802880285028601450145014501430970
Operating Liquid Flow (L/min)2.02.02.54.26.78.310.015.020.0
Port Diameter / Inlet ConnectionDN25 ThreadDN32 ThreadDN40 ThreadDN40 Thread/FlangeDN50 FlangeDN50 FlangeDN65 FlangeDN80 FlangeDN100 Flange
Noise Level dB(A)≤ 62≤ 65≤ 66≤ 72≤ 63≤ 68697374
Net Weight (kg)3435506090110150180300
Labeled liquid ring vacuum pump showing the motor, terminal box, base, suction, discharge, working fluid, cavitation and drain ports.

Key Technical Features & Performance Advantages

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Listed Displacement: 3.83 m³/min

The page lists 3.83 m³/min (229.8 m³/h) displacement and 5.5 kW motor power. Actual pumping speed and vapor-handling capacity depend on inlet pressure, gas load and service-liquid conditions.

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Listed DN50 Connections

The page lists DN50 inlet and outlet connections. Confirm flange standards, dimensions, gasket selection and piping loads against the supplied drawing, and verify joint sealing during installation.

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Material Options Require Confirmation

Confirm the casing, impeller and seal materials for the ordered configuration. Any SS304, SS316 or SS316L option requires a compatibility review for the gas, condensate and service liquid.

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Listed Service-Liquid Flow: 8.3 L/min

The listed service-liquid flow is 8.3 L/min. Confirm the required flow, temperature and supply monitoring; achievable pressure depends on liquid vapor pressure, gas load and system conditions, and dry running must be prevented.

Target Applications & Industry Uses

🧪 Chemical & Pharmaceutical Processing

For filtration, solvent recovery, distillation or batch drying, calculate gas and vapor loads at the required pressure. Confirm wetted materials, service-liquid compatibility, condensate handling and any hazardous-area or pharmaceutical process requirements.

🌊 Wastewater & Municipal Treatment

For vacuum-assisted dewatering or pump-station priming, confirm that the process requires a vacuum source and size it for air leakage, evacuation time and operating pressure. Review upstream separation, liquid carryover and discharge handling.

🪵 Timber, Pulp & Paper Manufacturing

For pulp dewatering, timber impregnation or textile moisture extraction, assess gas load, moisture carryover and required pressure for the specific equipment. Confirm separation, service-liquid management and compatibility with process chemicals.

🔩 Industrial Extrusion & Vacuum Clamping

For extrusion degassing, match pumping speed to gas release and process pressure. For CNC clamping, verify pressure differential, effective holding area and leakage separately; both duties require suitable filtration and liquid carryover control.

Frequently Asked Questions (FAQ)

What are the key technical specifications of the 2BVA5111 vacuum pump?

The page lists 3.83 m³/min (229.8 m³/h) displacement, 5.5 kW motor power, 1450 r/min speed, DN50 connections and 8.3 L/min service-liquid flow. Confirm the selected configuration and performance curve; the listed 33 mbar absolute limit is not a guaranteed pressure under process load.

How does the 2BVA5111 compare to the 2BVA5110 model?

The pages list 3.83 m³/min displacement for 2BVA5111 and 2.75 m³/min for 2BVA5110, with motor ratings of 5.5 kW and 4 kW respectively. Compare performance curves under the same operating conditions and size against the actual gas load; higher listed displacement does not by itself establish the better model for a process.

What material customization options are available for aggressive chemical applications?

Confirm which casing, impeller, seal and other wetted-material options are available for the ordered configuration. Any SS304, SS316 or SS316L option requires compatibility review for the chemicals, concentration, temperature, condensate and service liquid; the material name alone does not establish suitability.

What is the liquid seal circulation requirement for the 2BVA5111?

The listed service-liquid flow is 8.3 L/min. Confirm required flow, inlet temperature, liquid quality and once-through or recirculation arrangement for the operating pressure and gas load, including cooling and supply monitoring for continuous duty.

Ready to Upgrade Your Industrial Vacuum System?

Send the model, target pressure, gas load, seal-liquid type and temperature, electrical supply and operating schedule for a configuration and quotation review. Request drawings and confirm availability and lead time for the proposed configuration.

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