Stainless steel globe valve is a kind of globe valve, the specific stainless steel raw materials are CF8, CF3, CF8M, CF3M, different raw materials are selected, can be separated from water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media. Stainless steel globe valves are divided into manual stainless steel globe valves, pneumatic stainless steel globe valves, and electric stainless steel globe valves. The connection method has general globe valve wire buckle stainless steel globe valve, angle stainless steel globe valve, three-way stainless steel globe valve, direct flow stainless steel globe valve, thermal insulation stainless steel globe valve, etc., the most significant advantage is: in the process of opening and closing, because the friction between the valve disc and the sealing surface of the valve body is smaller than that of the gate valve, so it is wear-resistant. Stainless steel globe valve holding:
(1) The structure is simpler than that of the gate valve, and the production and maintenance are more convenient.
(2) The sealing surface is not easy to wear and abrasion, the sealing is good, there is no relative sliding between the valve disc and the sealing surface of the valve body when opening and closing, so the wear and abrasion are not serious, the sealing performance is good, and the service life is long.
(3) When opening and closing, the stroke of the valve disc is small, so the height of the stop valve is smaller than that of the gate valve, but the structural length is longer than that of the gate valve.
(4) The opening and closing torque is large, the opening and closing is more difficult, and the principal is the principal at the opening and closing time.
(5) The fluid resistance is large, because the medium channel in the valve body is tortuous, the fluid resistance is large, and the power consumption is large.
(6) When the nominal pressure PN≤16MPa in the direction of medium activity, the medium generally flows upwards from the bottom of the valve disc; When the nominal pressure PN≥20MPa, counterflow is generally adopted, and the medium flows downward from the top of the valve disc. to add seals can. When in use, the shut-off valve medium can only move in one direction, and the direction of activity cannot be changed.
(7) When fully opened, the valve disc is often eroded.
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