Pneumatic hard seal butterfly valves utilized a U shape seal ring which is made of stainless steel. The elastic seal ring connect with eccentric disc which has been polished. The disc separates form sealing face when valve opened and connect with sealing face when valve closed to realize sealing, having the advantages of long service life and good sealing. Applicable temperature belows 550℃. Pneumatic hard seal butterfly valve is widely used for pipelines to regulate flow or closure fluid in metallurgy, petroleum, gas and other industries.
Manufacturer: Zhejiang Xinhai Valve Manufacturing Co., Ltd.
Sales Contact: Jeawin Lee
Sales Email: valves@xinhaivalve.com
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