Product Overview
This valve is suitable for cement, building materials, municipal construction, electric power and other industries for opening and closing and regulating medium flow. The valve has the advantages of small flow resistance, flexible opening and closing, simple structure, short structure length, light weight and convenient operation and maintenance. The electric drive device of the valve is one-stage and two-line transmission, and can be operated manually, which can meet the requirements of field operation and remote centralized control.
Structural Characteristics
- There is no connecting rod, bolt, etc. in the ventilation butterfly valve, it works reliably and has a long service life. It can be installed in multi station, not affected by the flow direction of medium.
- The ventilation butterfly valve is designed and manufactured with a new structure of welding the central line type disc plate and short structure steel plate. It has the advantages of compact structure, light weight, easy installation, small flow resistance, large flow capacity, avoiding the influence of high temperature expansion, and easy to operate.
Execution Standard
Design standard: GB/T12238-1989 JB/T8692-1998
Flange connection size: GB/ T9119
Structure length: GB/T12221-1989
Pressure test: GB/T13927-1992;JB/T9092-1999
Performance Parameter
Nominal size: DN200~3000mm
Nominal pressure: 0.1MPa
Applicable temperature: ≤300℃
Leakage rate: ≤1.0%
Applicable medium: air, smoke
Main material: carbon steel, alloy steel
Product Dimensions
