GOFLEX PUMP

2BVA5131 Liquid Ring Vacuum Pump

The GOFLEX 2BVA5131 (2BV5 131) is a liquid ring vacuum pump option for assessment against the required inlet pressure, gas flow and operating schedule. Review the listed displacement, motor rating and speed with the model-specific performance curve. Confirm service-liquid temperature, flow and supply conditions; the limiting pressure alone does not establish the pumping capacity available at that pressure.

For chemical, pharmaceutical, paper pulp or mining equipment, provide gas composition, vapour and particle load, vessel volume and evacuation target. Confirm casing and impeller materials, seal compatibility, connection dimensions, cooling, liquid separation, recirculation or discharge treatment, and protective controls for the complete installation. Review process-specific compatibility and validation requirements with the integrator. Verify continuous-duty capability, noise measurement conditions and inspection or service intervals for the proposed configuration.
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Side view of a gray pump with two 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)2BVA5121 (2BV5 121)2BVA5131 (2BV5 131)2BV5 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 FlangeDN65 FlangeDN100 Flange
Noise Level dB(A)≤ 62≤ 65≤ 66≤ 72≤ 63≤ 68≤ 69≤ 7374
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: 6.66 m³/min

The page lists 6.66 m³/min (399.6 m³/h) displacement and 11 kW motor power. Confirm the pumping-speed curve at the required inlet pressure, gas load and service-liquid conditions before selection.

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Listed DN65 Connections

The page lists DN65 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 casing, impeller and seal materials for the ordered configuration. Any SS304, SS316 or SS316L option requires compatibility review for the gas, condensate, temperature and service liquid.

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Listed Service-Liquid Flow: 15 L/min

The listed service-liquid flow is 15 L/min. Confirm the required flow, temperature and supply monitoring for the duty; the listed 33 mbar absolute limit is not a guaranteed pressure under process load, and dry running must be prevented.

Target Applications & Industry Uses

🧪 Industrial Chemical & Distillation Lines

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

🪵 Paper, Pulp & Wood Treatment

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.

⛏️ Mining & Mineral Filtration

For rotary drum filtration or mineral dewatering, size against filtration area, air leakage and operating pressure. Review upstream separation, abrasive solids carryover limits, service-liquid quality and discharge handling before connection.

🌊 Water Treatment & Utility Priming

For vacuum-assisted sludge dewatering or water-pump priming, calculate air leakage, evacuation time and operating pressure. Confirm the separation arrangement, liquid carryover controls and operating sequence for the municipal or power-station installation.

Frequently Asked Questions (FAQ)

What are the core technical specifications of the 2BVA5131 vacuum pump?

The page lists 6.66 m³/min (399.6 m³/h) displacement, 11 kW motor power, 1430 r/min speed, DN65 connections and 15 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. Any noise specification requires its test conditions.

How does the 2BVA5131 perform compared to the 2BVA5121 model?

The pages list 6.66 m³/min displacement and 11 kW motor power for 2BVA5131, compared with 4.66 m³/min and 7.5 kW for 2BVA5121. Compare performance curves at the same inlet pressure and service-liquid conditions, and size against actual gas load; the displacement difference alone does not establish process suitability.

What material options are available for handling corrosive process gases?

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 liquid seal flow rate is required for the 2BVA5131 during continuous duty?

The listed service-liquid flow is 15 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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