This kind of butterfly valve has the unique advantages:
– Keeping the main valve closed and bypass valve open. That can maintain minimum flow across the valve to avoid water stagnancy and maintain water quality.
– Equalize the pressure across the valve to enable manual opening in case of power unavailability.
BFV-02-QJ Rubber lined Butterfly Valve, internally with ebonite lining of thickness 3mm or 5mm.
The typical applications of this type of butterfly valves are chemical plants, sea water treatment, desalination projects, nuclear power plants, water treatment, TSE, sewage etc.
Rubber-Seated Butterfly Valves to AWWA C504, designed for drink water, sea water, cooling water etc. NSF/ANSI 61 approval is available.
Design is rated for B valves (max. flow velocity 16ft/sec-4.9m/sec), and absolutely compliance with the requirements in min. shaft diameter, min. body shell thickness and actuator test cycles, workshop testing and Proof-of-design tests etc.
Main Parts Material List Product Description The Function and Principle The function of the telescopic device is to connect pumps, valves and pipes, and make…
With the development of industry and population and the increasingly severe situation of environmental protection, the importance of sewage/wastewater treatment industry is particularly important.
For raw water intake process valves, the head raw water valve is characterized by a large valve diameter, and no need to operate frequently, most of which need to be operated once a year or even several years.
In this field, we have more than 20 years of experience in valve manufacturing, our valves can provide full duplex steel, full rubber lining, full copper and special sea water resistant anticorrosive coating and other solutions for customers to choose from.
TSE recycling way is various, and can be used for groundwater recharge, agricultural water (including forest, animal husbandry and fishery), urban non-drinking water, industrial water, landscape irrigation/environmental water, etc.
Potable water is an indispensable resource in our daily life, covering water for drinking and various daily uses, such as bathing, washing vegetables, washing dishes, etc.
Circulating cooling water is a major item in industrial water consumption. In petrochemical, electric power, iron and steel, metallurgy, papermaking, and other industries, the consumption of circulating cooling water accounts for 50-90% of the total water consumption of enterprises.
Zhengzhou Newstar Machinery Co., Ltd. is a leading developer, manufacturer, and after-market service provider of comprehensive flow management products and services in China. Our flow service solutions help customers resolve any problems and questions in critical industries around the world.
The brand ”NST” is the No.1 butterfly valve brand in the water treatment industry of China.
NST Valve occupied more than 40% market share of butterfly valves in municipal water treatment of China.
NST Valve is located in Zhengzhou city, the capital of Henan province.
