楔形闸阀

At GEKO, we are committed to providing high-quality valves for critical industries worldwide. Recently, we shipped a batch of our 3" Forged Steel Gate Valves to a major oil company in Egypt. These valves are ideal for use in demanding oil and gas environments, offering reliable performance and safety.         These Valves 3" Forged Steel-Gate Valves (Bolted Bonnet, Class 900) is designed to handle high-pressure systems with ease. Here’s why it's a trusted choice for the oil and gas sector:   ASTM A105 Material: Made from high-quality ASTM A105 forged steel, these valves are built to last, offering excellent resistance to pressure and temperature. Reinforced Teflon Seats: The reinforced Teflon seats ensure a tight seal and reduce the risk of leaks, making it a safe and reliable choice for oil pipelines. Fire-Safe Design: Safety is paramount, and our fire-safe gate valve is designed to perform even in extreme conditions, preventing leaks in the event of a fire. Full Porta Conventional Wedge Gate Valve: The full port design allows for better flow, while the conventional wedge gate valve provides smooth operation and durability. Flange Ends: The flanged ends make it easy to install and integrate into existing pipeline systems, which are common in the oil industry.   Other Valves for the Oil & Gas Industry   At GEKO, we also offer other valves specifically designed for the oil and gas sector, including: Ball Valves: Ideal for on/off control, offering high performance and easy operation. Globe Valves: Perfect for regulating and throttling fluid flow. Check Valves: Essential for preventing backflow in pipelines, ensuring one-way flow.   If you need high-quality valves for your next project, GEKO has the perfect solution.

闸阀结构的分类方法有很多种，主要区别在于密封元件的结构形式不同。根据密封元件的结构，闸阀通常分为几种类型，最常见的闸阀类型是平行闸阀和楔形闸阀。根据阀杆的结构，闸阀还可以分为升杆式闸阀和暗杆式闸阀。 1. 并联闸阀 平行闸阀的两个密封面垂直于管道轴线，即两个密封面彼此平行的闸阀。在平行闸阀中，带推力楔的结构最为常见，适用于低压、中小口径的阀门。弹簧可以产生必要的预压缩力，有利于闸板的密封。此外，还有通过机械装置（如杠杆、螺杆机构等）推动闸板开启的平行闸阀，以及仅有一对密封件的单向平行闸阀。这些结构目前仅在特殊工况下使用。 2.楔形闸阀 楔形闸阀的两个密封面与管道轴线形成一定角度，即两个密封面呈楔形的闸阀。倾斜角的大小主要取决于介质的温度。一般来说，工作温度越高，倾斜角就应该越大，以降低温度变化时闸板发生楔入的可能性。楔形闸阀可分为双闸板、单闸板和弹性闸板。 3. 升杆式闸阀 这种闸阀的阀杆螺母安装在阀盖或支架上。阀门开启和关闭时，通过旋转阀杆螺母来实现阀杆的升降。这种结构使得阀杆螺纹部分不与介质接触，不易被介质腐蚀，同时有利于阀杆螺纹部分的润滑，因此应用广泛。如需了解闸阀价格，请联系专业的闸阀供应商GEKO。 4. 深色阀杆闸阀 这种闸阀的阀杆螺母与阀体内的介质直接接触。阀门的开启和关闭是通过旋转阀杆实现的。这种结构的唯一优点是闸阀在开启和关闭过程中高度不变，因此 闸阀安装 空间虽小，但此类阀门必须配备开启和关闭指示器，以显示阀门的开启状态。 目前，在石油化工系统中，尤其是在长距离油气管道中，浮动阀座平闸阀得到了广泛应用。这种平闸阀具有流体阻力小、密封性能可靠、使用寿命长等优点。平闸阀分为带导孔和不带导孔两种类型。带导孔的平闸阀主要用于油气管道的管道清洗，而不带导孔的平闸阀则适用于各种管道的启闭装置。这种闸阀的制造工艺相对简单，易于实现自动化生产。