Válvula de esfera de flange padrão americano Q41F
The Q41F American Standard flanged ball valve is mainly used for cutting off or connecting media, e também pode ser usado para regulação e controle de fluidos. It is widely used in industries such as petroleum, químico, metalurgia, poder, construction, aquecimento, abastecimento de água e drenagem, e tratamento de água. Valves designed, manufactured, produced, and tested according to American standards are called American Standard valves.
Nome do produto: ASME Standard Flanged Ball Valve
Modelo de produto: Q41F
Diâmetro Nominal: DN15～DN600
Estrutura: Esférico
Pressão Nominal: 150LB-1500LB
Método de conexão: Flanged
Temperatura aplicável: -20～+100℃～+550℃
Método de atuação: Manual, Engrenagem sem-fim, Pneumático, Elétrico
Material do corpo da válvula: Aço fundido, Aço inoxidável
Padrão de Fabricação: GB (Padrão Nacional Chinês), DE (Padrão Alemão), API (Padrão Americano), ANSI (Padrão Americano)
Mídia Aplicável: Água, Vapor, Gás, Gases, and Corrosive Liquids, etc..
Fabricante:Válvula Co. de Zhejiang Kozo., Ltda.
Q41F American Standard Flange Ball Valve product description
The Q41F American standard flange ball valve is mainly used to cut off or connect the medium, and can also be used to regulate and control fluids. Widely used in petroleum, chemical industry, metalurgia, energia elétrica, construction, aquecimento, abastecimento de água e drenagem, water treatment and other industries. Valves designed, manufactured, produced and tested according to American standards are called American standard valves. Applicable to various pipelines from Class150 to Class1500. The closing part of the American standard ball valve is a ball. The ball rotates around the center line of the valve body to open and close the valve. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of media. There are mainly API and ASME standards, and ASTM is the material standard.
Q41F American Standard Flange Ball Valve Product features
①Valve stem anti-fly-out structure: When the medium passes through the valve, the pressure in the valve body cavity may push the valve stem out. In order to prevent this from happening, a boss structure is set up at the lower part of the valve stem. In this way, even if the packing and thrust bearing are burned or damaged due to other reasons in a fire, the medium pressure in the valve body will make the valve stem boss be in close contact with the seal on the valve body, preventing a large amount of medium from leaking from the damaged packing part;
② Anti-static device: When operating the valve, due to friction between the ball and the valve seat of non-metallic materials such as PTFE, electrostatic charges will be generated and accumulated in the ball row. In order to prevent the generation of static sparks, an anti-static device is installed on the valve to discharge the generated static electricity;
③ Fireproof structure: Our company’s floating ball valve seat adopts a unique structure. When a fire occurs and the non-metal sealing surface material is burned, the metal ring uses the elastic force of the spring to push the valve seat and the ball to seal, thereby preventing the spread of fire and the outflow of the medium;
④ No leakage structure of the middle flange: The connection between the valve body and the left body is sealed by a gasket. In order to prevent seal leakage caused by factors such as fire, high temperature or vibration, the valve body is specially designed to be in metal-to-metal contact with the left body to form a stop flange to ensure no leakage;
⑤Automatic pressure relief structure: When the pressure in the middle cavity of the medium increases abnormally due to changes in the pipeline system pressure or medium temperature and other factors, the medium in the middle cavity can rely on its own thrust to push the valve seat and automatically release the pressure, thereby ensuring the safety of the valve.
Q41F American Standard Flange Ball Valve Technical parameters
Design standards AP16D ANSI B16.34
Flange connection structure length AP16D ANSI B16.10
Structure length (welded) AP16D ANSI B16.10
Connection flange ANSI B16.5, B16.47
Butt weld ends ANSI B16.25
Testing and Inspection AP16D AP1598
Q41F American Standard Flange Ball Valve Main component materials
Name WCB type CF8 type CF3 type CF8M type CF3M type
Valve body left body A216-WCB A315-CF8 A35-CF3 A351-CF8M A351-CF3M
Sphere B2-B8 A105-1025 A182-F304L A182-F304L A132-F316 A182-F316L
B8 and above A216-WCB A351-CF8M A351-CF3 A351-CF8M A351-CF3M
Valve stem A182-F6a A182-F304 A182-F304L A182-F336 A182-F316L
Valve seat PTFE/reinforced PTFE/NYLIN PTFE/Reinforced PTFE/Nyion
Valve seat support ring A105-1025 A182-F304 A182-F304L A182-F316 A182-F316L
Spring 3yc-7/17-49H
O-ring NBR fluororubber
Stud A193-B7 A193-B8
Nut A194-2H A194-8
