**Greentech International (Zhangqiu) Co., Ltd** is a professional supplier of vacuum pumps, offering high-quality and reliable solutions for various industrial applications. Below is the detailed information about the **2BV series water ring vacuum pumps**, which are widely used in CNC routers, vacuum filtration, disinfection, distillation, and other processes.
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### **Product Specifications**
- **Model No.:** 2BV
- **Structure:** Rotary Vacuum Pump
- **Vacuum Degree:** High
- **Working Conditions:** Wet
- **Material:** Cast Iron or Stainless Steel
- **Drive:** Motor
- **Application:** Vacuum Pump or Compressor
- **Oil or Not:** Oil Free
- **Exhauster Method:** Kinetic Vacuum Pump
- **Work Function:** Pre-Suction Pump
- **Color:** Blue
- **Connect:** Belt or Direct Drive
- **Frequency:** 50Hz
- **Transport Package:** Wooden Case
- **Origin:** China
- **Trademark:** Greentech
- **Specification:** 2BV
- **HS Code:** 8414
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### **Key Applications**
- **Vacuum Filtering**
- **Vacuum Disinfection**
- **Vacuum Distillation**
- **Explosive Gas Handling** (for 2BV2-Ex and 2BV6 series)
- **Corrosive Environments** (stainless steel models)
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### **Technical Features**
The **2BV series** water ring vacuum pumps are designed to handle gases and steam efficiently. Their suction pressure can reach **33 mbar (ABS)**, equivalent to **97% vacuum degree**. When using transformer oil as the operating liquid, these pumps become **oil ring vacuum pumps**, achieving a higher suction pressure of **6.7 mbar (ABS)** or **99% vacuum degree**. This makes them a suitable replacement for reciprocating vacuum pumps.
When working near the limit vacuum for extended periods, it's essential to connect a **cavitation protection pipe** to prevent noise and protect the pump from damage.
In compressor mode, the maximum discharge pressure reaches **0.26 MPa (ABS)**. The motor power required depends on the discharge pressure, so providing this data is crucial for selecting the appropriate motor.
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### **Material Construction**
All internal components that come into contact with the liquid—such as the **pump casing, cover, port plate, and impeller**—are made of **stainless steel**, including:
- **SUS304 (0Cr18Ni9)**
- **SUS316 (0Cr17Ni12Mo2)**
- **SUS316L (00Cr17Ni14Mo2)**
The **shaft** is made of **2Cr13** or **0Cr18Ni12Mo2Ti**, and **John Crane mechanical seals** are used, with optional materials such as **FPM or PTFE** for different environments.
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### **Design Advantages**
- **Close-coupled design** for easy installation and space-saving
- **Standard John Crane mechanical seals** for durability
- **Cavitation protection port** to reduce noise and protect the pump under high vacuum conditions
- **Aluminum bronze impeller** for high strength and wear resistance
- **Unique discharge port design** to prevent overpressure and ensure optimal performance
- **Y2 series motors** with **IP54/IP55 protection class** and **F insulation grade**
- **Imported NTN or NSK bearings** for long-lasting operation
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### **Performance Table**
| Type | Suction Capacity (m³/min) | Limited Vacuum (mbar/MPa) | Motor Power (kW) | Explosion-proof Grade | Protection Class | Pump Speed (r.p.m) | Liquid Flowrate (L/min) | Noise (dB(A)) | Weight (kg) |
|-------------|---------------------------|---------------------------|------------------|----------------------|------------------|---------------------|-------------------------|---------------|-------------|
| 2BV2 060 | 0.45 | 33 mbar (-0.098 MPa) | 1.1 | No | IP54 | 2880 | 2 | 62 | 31 |
| 2BV2 061 | 0.86 | | 1.5 | No | IP54 | 2880 | 2 | 65 | 35 |
| 2BV2 070 | 1.33 | | 3 | No | IP54 | 2850 | 2.5 | 66 | 56 |
| 2BV2 071 | 1.83 | | 4 | No | IP54 | 2860 | 4.2 | 72 | 65 |
| 2BV2 060-Ex | 0.45 | | 1.1 | dIIBT4 | IP55 | 2880 | 2 | 62 | 39 |
| 2BV2 061-Ex | 0.86 | | 1.5 | dIIBT4 | IP55 | 2880 | 2 | 65 | 45 |
| 2BV2 070-Ex | 1.33 | | 3 | dIIBT4 | IP55 | 2850 | 2.5 | 66 | 66 |
| 2BV2 071-Ex | 1.83 | | 4 | dIIBT4 | IP55 | 2860 | 4.2 | 72 | 77 |
| 2BV5 110 | 2.75 | | 4 | No | IP54 | 1450 | 6.7 | 63 | 103 |
| 2BV5 111 | 3.83 | | 5.5 | No | IP54 | 1450 | 8.3 | 68 | 117 |
| 2BV5 121 | 4.66 | | 7.5 | No | IP54 | 1450 | 10 | 69 | 149 |
| 2BV5 131 | 6.66 | | 11 | No | IP54 | 1430 | 15 | 73 | 205 |
| 2BV5 161 | 8.33 | | 15 | No | IP54 | 970 | 20 | 74 | 331 |
| 2BV6 110 | 2.75 | | 4 | dIIBT4 | IP55 | 1450 | 6.7 | 63 | 153 |
| 2BV6 111 | 3.83 | | 5.5 | dIIBT4 | IP55 | 1450 | 8.3 | 68 | 208 |
| 2BV6 121 | 4.66 | | 7.5 | dIIBT4 | IP55 | 1450 | 10 | 69 | 240 |
| 2BV6 131 | 6.66 | | 11 | dIIBT4 | IP55 | 1430 | 15 | 73 | 320 |
| 2BV6 161 | 8.33 | | 15 | dIIBT4 | IP55 | 970 | 20 | 74 | 446 |
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These pumps are ideal for industries requiring **high vacuum performance**, **corrosion resistance**, and **explosion-proof safety**. Whether you're looking for standard or **explosion-proof models**, the **2BV series** offers a wide range of options to suit your needs. For more details or customization, feel free to contact **Greentech International (Zhangqiu) Co., Ltd**.
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