Manual ventilation butterfly valve with high quality and low price for sale Tianrun brand ventilation butterfly valve

Tianrun environmental protection manual ventilation butterfly valve
Introduction: DH, ventilation butterfly valve is used as a gas medium regulator in the dusty cold air or hot air gas pipelines of ventilation and environmental protection projects in metallurgy, chemical industry, building materials, power stations, glass and other industries. Flow or shut-off device.
, designed and manufactured using a new structural form of welding of a centerline dish plate and a short structural steel plate. It has a compact structure, light weight, easy installation, small flow resistance, large circulation capacity, avoids the influence of high temperature expansion, and is easy to operate.
, no connecting rods, bolts, etc. inside, reliable operation and long service life. It can be installed at multiple stations and is not affected by the flow direction of the medium.
Let me tell you some precautions during the installation process of the ventilation butterfly valve
The installation position, height, and inlet and outlet direction must meet the design requirements. Note that the direction of the medium flow should be in the direction of the arrow marked on the valve body. Consistent, the connection should be firm and tight.
The ventilation butterfly valve must be visually inspected before installation. The nameplate of the valve should comply with the current national standard "General Valve Marking".
For valves with working pressure greater than . and valves that play a cutting role on main pipes, strength and tight performance tests should be carried out before installation, and they can only be used after passing the test.
During the strength test, the test pressure shall be . During the tightness test, the test pressure is . times the nominal pressure and the test duration meets the requirements.
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