GOFLEX PUMP

2BVA Liquid Ring Vacuum Pump with Stainless Steel Impeller

This 2BVA liquid ring vacuum pump page covers configurations with a stainless steel impeller. Confirm the exact model, impeller grade, casing material and all other wetted components in the quotation; an impeller material specification does not establish the material of the complete pump. Review listed capacity and limiting pressure against the performance curve at your required working pressure and the specified service-liquid conditions.

For distillation, wastewater treatment, dewatering or vacuum holding, provide gas composition, vapour and particle load, temperature, duty cycle and evacuation target. Confirm corrosion compatibility, seals, connection type and dimensions, cooling, liquid supply or recirculation, separation and discharge treatment for the selected configuration. Verify leakage acceptance criteria, protective controls and maintenance requirements. Stainless steel components alone do not establish suitability for every chemical or process environment.
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Metallic pump housing with two capped ports connected to a blue electric motor.

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Metallic pump with two upright capped ports and a blue electric motor.
Top view of a metallic pump connected to a blue electric motor.
Metallic pump with two capped flanges and a blue motor extending behind it.

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)2BVA5161 (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 FlangeDN80 FlangeDN100 Flange
Noise Level dB(A)≤ 62≤ 65≤ 66≤ 72≤ 63≤ 68≤ 69≤ 73≤ 74
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 2BVA5111 Performance Reference

The page lists 3.83 m³/min (229.8 m³/h) displacement and 5.5 kW motor power for the 2BVA5111 reference configuration. Confirm the ordered model and performance curve at the required inlet pressure and service-liquid conditions.

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Listed DN50 Connections

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

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SS316 Impeller Material Scope

The page identifies a 316 stainless steel impeller. Confirm casing, shaft, seal and other wetted-part materials separately; an SS316 impeller does not establish an all-stainless pump or compatibility with every corrosive medium.

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Listed Service-Liquid Flow: 8.3 L/min

The reference configuration lists 8.3 L/min service-liquid flow. Confirm required flow, temperature and supply monitoring; the listed 33 mbar absolute limit is not a guaranteed pressure under process load, and dry running must be prevented.

Target Applications & Industry Uses

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Chemical & Pharmaceutical Processing

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

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Wastewater & Municipal Treatment

For vacuum-assisted dewatering or pump-station priming, size against air leakage, evacuation time and operating pressure. Confirm upstream separation, solids carryover limits and service-liquid treatment; an SS316 impeller alone does not establish system suitability.

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Timber, Pulp & Paper Manufacturing

For pulp dewatering, timber impregnation or textile moisture extraction, assess gas load, moisture carryover and required pressure. Confirm all wetted materials against process chemicals and review separation and service-liquid management.

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Industrial Extrusion & Vacuum Clamping

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

Frequently Asked Questions (FAQ)

Does a stainless steel impeller mean the entire pump is stainless steel?

No. This page identifies a 316 stainless steel impeller. Confirm the casing, shaft, mechanical seals and every other wetted component separately against the ordered configuration and material documentation.

Which performance values are listed for the reference configuration?

The page lists a 2BVA5111 reference configuration with 3.83 m³/min (229.8 m³/h) displacement, 5.5 kW motor power, DN50 connections and 8.3 L/min service-liquid flow. Confirm the ordered model and performance curve; the listed 33 mbar absolute limit is not a guaranteed pressure under process load.

Can an SS316 impeller be used with any corrosive process gas?

No. Review chemical composition, concentration, temperature, condensate and service liquid against all wetted materials. An SS316 impeller alone does not establish corrosion resistance or suitability for the complete pump and system.

What service-liquid conditions should be confirmed before selection?

Confirm required flow, inlet temperature, liquid quality and once-through or recirculation arrangement for the gas load and operating pressure. Review cooling, supply monitoring, separation and cavitation controls for the selected configuration.

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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