The Wafer Butterfly Valve and Flange Butterfly Valve are two connections. In terms of price, the Wafer type is relatively cheaper, the price is roughly 2 / 3 of the Flange. If you want to choose the imported valve, as far as possible with the Wafer type, cheap price, light weight.
The length of the Wafer type valve bolt is long, and the construction accuracy requirement is high. If the Flange on both sides is not right, the bolt will be subjected to a large shear force, and the valve is easy to leak.
The Wafer type valve bolts are generally long. Under high temperature conditions, the bolt expansion may lead to leakage, so it is not suitable for large pipe diameter under high temperature conditions. And the wafer butterfly valve is generally can not be used for the end of the pipeline and the downstream need to be removed, because when the downstream flange is removed, the wafer type valve will fall down, this situation must be done in another short section to remove, and the flange butterfly valve does not have the above problems, but the cost will be relatively high.
There are no flanges at both ends of the wafer butterfly valve body, but only a few guide bolt holes. The valve is connected to the flanges at both ends with a set of bolts / nuts. In contrast, it is more convenient to remove, the valve cost is low, but the disadvantage is that one sealing surface problems, both sealing surfaces have to be opened.
Flange type rubber seated butterfly valve valve body flange respectively flange, connected with the pipe flange, sealing is relatively more reliable, but the cost of the valve is relatively high.
Besides, Tianjin Tanggu Water Seal Valve Co., Ltd. is a technologically advanced elastic seat valve supporting enterprises, the products are elastic seat wafer butterfly valve, lug butterfly valve, double flange concentric butterfly valve, double flange eccentric butterfly valve, balance valve, wafer dual plate check valve, Y-Strainer and so on. At Tianjin Tanggu Water Seal Valve Co., Ltd., we pride ourselves on providing first-class products that meet the highest industry standards. With our wide range of valves and fittings, you can trust us to provide the perfect solution for your water system. Contact us today to learn more about our products and how we can help you.
Post time: Mar-23-2024