This flanged gate valve is a common type of shut-off valve. Here is a detailed introduction of it:

• Connection method: It adopts flange connection, featuring strong connection and good sealing performance. The nominal diameter range is generally from DN15 to DN1000.
• Nominal Pressure: The pressure range is typically between 1.6 MPa and 16.0 MPa, which can meet the requirements of various different pressure conditions. • Applicable temperature range: The working temperature range is generally -29℃ to 550℃, depending on the material of the valve body and the sealing surface material.
• Valve body material: Commonly available materials include WCB, cast steel, carbon steel, stainless steel, chromium-molybdenum steel, etc. The choice of material can be made based on different media and usage conditions.
• Applicable media: Suitable for water, oil products, steam, as well as acids, alkalis, ammonia, urea, sulfur-containing natural gas, and other various media. It is widely used in industries such as petroleum, chemical engineering, hydropower, and thermal power generation.
• Driving method: The driving methods are diverse, including manual, gear transmission, electric, pneumatic, hydraulic, etc., which can meet various operational requirements.
• Structural features: The sealing pair is well-matched and highly efficient. The sealing surfaces of the gate and the valve seat are made by stacking different hardness types of Samte Coated Cobalt-based hard alloys. The sealing is reliable, with high hardness, wear resistance, high temperature resistance, and corrosion resistance. The valve stem undergoes quenching and surface nitriding treatment, resulting in excellent corrosion resistance, anti-abrasion performance, and wear resistance.