flue gas butterfly valve of two-seat water sealing
The valve is suitable for flue gas pipelines or coal pipelines in
which work temperature is less than 200℃ and it can act as an
on-off equipment. When the valvae is closed the pressure
water 0.25MPa can be injected between valve seats for realizing
water sealing.Also shaft end can be water sealing structure which
has long shelf life. The valve need to prepare supply,drainage
and exhaust pipeline which connects valve body pipeline,when the
valve is closed the pressure water can be injected and the pressure
water must be drained before the valve is opened and the shaft end
of valve is kept in water proof state.