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Product Description
1. Flow control:
- VNB valves are used to regulate and control the flow of various process fluids and gases in industrial systems.
- They provide precise flow modulation and tight shut-off capabilities.
2. Process automation:
- VNB valves are integrated into automated process control systems to enable remote operation and monitoring.
- They provide precise and reliable flow management in complex industrial processes.
3. Versatility:
- The VNB series is available in a range of materials, sizes and end connections to suit different process requirements.
- They can handle a wide range of media, including liquids, gases and steam, in a variety of industries including chemical, petrochemical and pharmaceutical.
4. Reliability and durability:
- VNB valves are designed with robust construction and high quality materials to ensure long life and reliable operation.
- They are designed to withstand the demanding conditions found in industrial process environments.
Product Specifications
| Model | B VNB2□1---F C Seal material: NBR/FKM/EPDM | B VNB202---F C Seal material: NBR/FKM/EPDM | VNB23---M Seal material: Metal | VNB204---P Seal material: PTFE | ||||
| Fluid | NBR | FKM | EPDM | NBR | FKM | EPDM | Coolant (-5-60℃) (-5-99℃ in air operated type) | Steam (-5~180℃) |
| Air (Standard, Dry): Carbon monoxide (CO2, 0.7MPa or less), Nitrogen gas(N2), Turbine oil Hydraulic oil (Kinematic viscosity: 40-100mm²/s) | Argon Helium Turbine oil Hydrau lic oil (Kinematicviscosity: 40~100mm²/s) | CO2 (above 0.7MPa) | Water, oil, air, vacuum, etc. (-5~60℃) | Water, oil, etc. (air operated type only) (-5~99℃) | ||||
| Model | B VNB2□1---F C Seal Material: NBR/FKM/EPDM | B VNB2□2---F C Seal Material: NBR/FKM/EPDM | VNB2□3---M Seal Material: Metal | VNB2□4---P Seal Material: PTFE | ||||||
| Valve body | SS304/Aluminum alloy | |||||||||
| Seal Material | NBR | FKM | EPDM | NBR | FKM | EPDM | NBR | FKM | -5~180℃ | |
| Fluid temperature | -5~60℃ | -5~99℃ | -5~60℃ | -5~99℃ | -5~60℃ | -5~99℃ | ||||
| Ambient temperature | -5~50℃*1 (Air operated: 60℃) | -5~60℃ | ||||||||
| Proof pressure | 1.5MPa | |||||||||
| Working pressure | 0~1.0MPa | N.O./N.C./C.O. standard port: low vacuum~0.5Mpa | 0~1.0MPa | 0~0.9MPa | ||||||
| N.C. smaller port: low vacuum~1.0Mpa | ||||||||||
| External pilot air | Pressure | 0.2~0.7MPa | N.C.:0.25~0.7Mpa NO./CO.:0.1+0.25x(PRESS*5)~0.25×0.25x (PRESS)MPa*2 | NC.:0.25~0.7MPa NO.:0.1+0.25x (PRESS)~0.7MPa | NC.:0.3~0.7MPa NO.:0.1+0.25x(PRESS)~ 0.25+0.25x(PRESS)MPa | |||||
| Lubrication | Not required ( Use turbine oil Class 1 ISO VG32, if lubricated.*3) | |||||||||
| Temperature | -5~50℃ (Air operated type: 60℃) | -5~60℃ | ||||||||
| Mounting | Free*4 | |||||||||
※ 1) No freezing.
※ 2) Adjust the operating pressure range from 0.125 MPa to 0.275 MPa for low vacuum.
※ 3) Lubrication is not allowed in the case of seal material EPDM.
※ 4) For extenal pilot solenoid, it is recommended that the pilot solenoid valve be oriented either vertically upward or horizontally.
※ 5) PRESS=Working pressure
Main Dimensions
| Model | Port size | A | B | C | D | E | F | G | AS | AL |
| DN 6 | 1/8 | 28 | 12.5 | 39.5 | 1/8 | 27 | 45 | 24 | 1/8 | 23 |
| DN 8 | 1/4 | 28 | 12.5 | 39.5 | 1/8 | 27 | 45 | 24 | 1/4 | 23 |
| DN 10 | 3/8 | 28 | 12.5 | 39.5 | 1/8 | 27 | 45 | 24 | 3/8 | 23 |
| DN 10 | 3/8 | 37 | 14 | 55 | 1/8 | 42 | 63 | 34 | 3/8 | 27 |
| DN 15 | 1/2 | 37 | 14 | 55 | 1/8 | 42 | 63 | 34 | 1/2 | 27 |
| DN 20 | 3/4 | 46 | 17.5 | 60.5 | 1/8 | 50 | 80 | 43 | 3/4 | 33 |
| DN 25 | 1 | 58 | 20 | 73 | 1/8 | 60 | 90 | 49 | 1 | 43 |
| DN 32 | 1-1/4 | 68 | 26.5 | 94 | 1/8 | 77 | 105 | 52.5 | 1-1/4 | 48 |
| DN 40 | 1-1/2 | 85 | 30 | 107 | 1/4 | 96 | 120 | 60 | 1-1/2 | 55 |
| DN 50 | 2 | 100 | 37 | 123 | 1/4 | 113 | 140 | 70 | 2 | 66 |
Catalogue PDF
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