The VNB Series 2-port process valve is designed to control flow of a wide range of fluids (including liquids, gases and vapours) in industrial applications. Their purpose is to accurately regulate fluid flow to ensure efficient process operation. Pneumatically operated for increased reliability and performance in demanding environments.
Product Feature
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.
Applicable Fluids Check List
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(-5-60ºC) (-5-99ºC in air operated type) | Steam (-5~180C) |
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 Hydraulic oil (Kinematic viscosity: 40~100mm2/s) | CO2 (above 0.7MPa) | Water, oil, air, vacuum, etc. (-5~60ºC) | Water, oil, etc. (air operated type only) (-5~99ºC) |
Specification
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 | -5~180C | |
Fluid temperature | -5~60ºC | -5~99ºC | -5~60ºC | -5~99ºC | -5~60ºC | -5~99ºC | ||||
Ambient temperature | -5~50ºC*1 (Air operated: 60ºC) | -5~60ºC | ||||||||
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 | -5~50ºC (Air operated type: 60ºC) | -5~60ºC | ||||||||
Mounting | Free*4 |




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 |
Packaging type:
VPC Box | White Box | Color Box | VPC Carton | Pallet |
Delivery time:
Conventional Products | Customized Products | Specially Customized Products |
on the day of payment | 10 workdays | 25 workdays. |
Payment term:
PayPal | TT | Western Union | DP | LC | Money Gram | Online Bank | Credit Order | Pay Later | DA |
YES | YES | YES | NO | NO | YES | YES | YES | YES | YES |
Transportation:
Express (DHL, UPS, TNT, JCEX, FEDEX) is available.
Sea and Air transports are available.
The most suitable transport way will be chosen for you.
Q1: What is your quality assurance?
A: We will inspect one by one before delivery. If the product is damaged in transit or has quality problems, you can choose to refund or resend the product, and we will bear the freight.
A: TT, we'll show you the photos of the products and packages before you pay the balance.
B: Paypal payment, Bank transfer, and Trade Assurance orders are also available.
Q3: How about the lead time?
A: Normally it will take 3-7 days for our routine products.
Q4: What is your sample policy?
A: Some free samples can be offered if you contact us.
Q5: How about the warranty?
A: 1 year warranty.