Description
■ Features
1. Flow control:
– First of all, they are normally used to regulate and control the flow of various process fluids and gases in industrial systems.
– Second, additionally they also have precise flow regulation and a hermetic sealing function.
2. Process automation:
– Certainly process valve can be integrated into automated process control systems, thus, it can be managed and controlled remotely.
– Obviously, they can also provide accurate and reliable flow management in complex industrial processes.
3. Versatility:
– Uniquely, the VNB series is also available in a wide range of materials, sizes and end connections, so it can be tailored to meet different process requirements.
– In addition, they can handle a wide range of media, mainly liquids, gases and vapors. Therefore, they are best suited for a wide range of industries such as chemicals, petrochemicals and pharmaceuticals.
4. As well as reliability and durability:
– As a VNB process valve, they are designed with robust construction and high quality materials, they have a long service life. At the same time, they work reliably.
– Of course, they are also designed to withstand the harsh conditions found in industrial process environments.
■ How to order VNB series process valve for flow regulation

■ Specs
Checklist of applicable fluids
| Model | B VNB2□1—F C Gasket material: NBR/FKM/EPDM | B VNB202—F C Gasket material: NBR/FKM/EPDM | VNB23—M Gasket material: Metal | VNB204—P Gasket material: PTFE | ||||
|---|---|---|---|---|---|---|---|---|
| Fluent | NBR | FKM | EPDM | NBR | FKM | EPDM | Refrigerante(-5-60℃) (-5-99℃ en el tipo accionado por aire) | Vapor (-5~180C) |
| Aire (estándar, seco): Monóxido de carbono (CO2, 0,7 MPa o menos); Gas nitrógeno (N2); Aceite de turbina Aceite hidráulico (Viscosidad cinemática: 40-100 mm²/s) | Argón Helio Aceite para turbinas Aceite hidráulico (Viscosidad cinemática: 40~100mm2/s) | CO2 (por encima de 0,7 MPa) | Agua, aceite, aire, vacío, etc. (-5~60℃) | Agua, aceite, etc. (sólo tipo neumático) (-5~99℃) | ||||
Especificación Commen
| Model | B VNB2□1—F C Sello Material: NBR/FKM/EPDM | B VNB2□2—F C Gasket material: NBR/FKM/EPDM | VNB2□3—M Material de la junta: Metal | VNB2□4—P Tipo de junta: PTFE | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Valve body | SS304 / Aleación de aluminio | |||||||||
| Gasket material | NBR | FKM | EPDM | NBR | FKM | EPDM | NBR | FKM | -5~180C | |
| Fluid temperature | -5~60℃ | -5~99℃ | -5~60℃ | -5~99℃ | -5~60℃ | -5~99℃ | ||||
| Room temperature | -5~50℃*¹ (Como accionamiento neumático: 60℃) | -5~60℃ | ||||||||
| pressure test | 1,5 Mpa | |||||||||
| Working pressure | 0~1,0 Mpa | N.O./N.C./C.O. puerto estándar: bajo vacío~0,5 Mpa | 0~1,0 Mpa | 0~0,9 Mpa | ||||||
| N.C. puerto más pequeño: bajo vacío~1,0 Mpa | ||||||||||
| Aire de pilotaje externo | Pressure | 0,2~0,7 Mpa | N.C.:0,25~0,7 Mpa NO./CO.:0.1+0,25x(PRENSA*5)~ 0,25×0,25x(PRENSA)Mpa*² | NC.:0,25~0,7 Mpa NO.:0,1+0,25x (PRENSA)~0,7 Mpa | NC.:0,3~0,7 Mpa NO.:0,1+0,25x(PRESS)~ 0,25+0,25x(PRENSA) Mpa | |||||
| Lubrication | No es necesario ( Utilice aceite de turbina Clase 1 ISO VG32, si está lubricado.3) | |||||||||
| Temperature | -5~50℃ (Tipo neumático: 60℃) | -5~60℃ | ||||||||
| Mounting | Gratis*4 | |||||||||
Symbol

■ 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 |







