2BVA5121 Industrial Liquid Ring Vacuum Pump (4.66 m³/min, 7.5 kW)

Designed for continuous high-demand processing lines, the GOFLEX 2BVA5121 (2BV5 121) Liquid Ring Vacuum Pump delivers a powerful displacement capacity of 4.66 m³/min (279.6 m³/h). Driven by a 7.5 kW three-phase motor (1450 r.p.m.) with DN65 flanged inlet/outlet connection ports, this 150 kg monoblock unit maintains quiet, smooth operation at ≤69 dB(A). Constructed with a heavy-duty precision cast iron body and customizable SS304/SS316/316L stainless steel impellers, the 2BVA5121 reaches ultimate vacuum levels down to 33 mbar absolute (-0.097 MPa) while utilizing a 10 L/min liquid seal flow for reliable thermal management in chemical distillation, pharmaceutical drying, and industrial filtration systems.
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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)2BV5 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≤ 68≤ 697374
Net Weight (kg)3435506090110150180300

Key Technical Features & Performance Advantages

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4.66 m³/min High-Volume Displacement

Powered by a 7.5 kW motor, the 2BVA5121 delivers an expanded 4.66 m³/min (279.6 m³/h) air capacity to satisfy demanding industrial-scale vacuum requirements.

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Standard DN65 Industrial Flanged Connections

Features standard DN65 inlet and outlet flanges, ensuring seamless integration and leak-proof fitting into large chemical and plant process piping systems.

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Anti-Corrosive SS304/SS316/316L Options

Built with a rigid precision cast iron casing and standard mechanical seals, with optional SS304, SS316, or SS316L impellers for severe chemical environments.

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10 L/min Liquid Ring Thermal Management

A continuous 10 L/min seal liquid flow dissipates heat, eliminates dry friction, and stabilizes ultimate vacuum performance down to 33 mbar absolute.

Target Applications & Industry Uses

🧪 Chemical & Pharmaceutical Systems

Provides deep continuous vacuum for batch reactor solvent recovery, large-scale vacuum distillation columns, and pharmaceutical tray drying.

🌊 Wastewater & Environmental Engineering

Efficiently powers sludge dewatering processes, municipal water treatment plants, and large suction priming systems.

🪵 Pulp, Paper & Textile Processing

Used extensively in paper mill felt dewatering, vacuum impregnation of timber, and continuous industrial fabric drying lines.

⚙️ Plastic Extrusion & CNC Clamping

Delivers constant suction power for multi-head plastic/rubber vacuum extruders and large industrial CNC vacuum hold-down tables.

Frequently Asked Questions (FAQ)

What are the core performance specifications of the 2BVA5121 vacuum pump?

The 2BVA5121 (2BV5 121) delivers a maximum air capacity of 4.66 m³/min (279.6 m³/h), powered by a 7.5 kW motor at 1450 r.p.m. It features DN65 flanged connection ports, a 10 L/min operating fluid requirement, ≤69 dB(A) sound level, and reaches an ultimate limit vacuum of 33 mbar absolute (-0.097 MPa).

How does the 2BVA5121 differ from the 2BVA5111 model?

The 2BVA5121 upgrades to a larger DN65 flange port and a 7.5 kW motor, increasing air capacity to 4.66 m³/min (compared to 3.83 m³/min on the 5.5 kW 2BVA5111), making it suited for heavier industrial-scale distillation, filtration, and dewatering workflows.

What corrosion-resistant material options are available for the 2BVA5121?

While built with a robust precision cast iron casing as standard, the 2BVA5121 offers optional SS304, SS316, or SS316L stainless steel impellers and flow passages for processing corrosive vapors and chemical media.

What is the recommended operating liquid flow rate for the 2BVA5121?

The 2BVA5121 requires a continuous 10 L/min seal water circulation to maintain the liquid ring seal, dissipate heat, and protect internal components during continuous duty.

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