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VNB Series Air Operated Process Valve for Flow Control

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.

Model:
VNB212-20NCF
Brand:
VPC Pneumatic

Control Type:	/Normally open Normally closed Liberty(double acting)
Acting type:	Air operated External pilot solenoid
Body material:	Aluminum alloy
Availability:



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Product Description

■ 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.

Product Specifications

■ 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(-5-60℃) (-5-99℃ 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. (-5~60℃)	Water, oil, etc. (air operated type only) (-5~99℃)

■ 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		-5~60℃	-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

■ Symbol

smc process valve

Main Dimensions

■ Specification

■ Main Dimensions

air operated valve

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