阀杆应该是六角形或方形，以确保阀瓣能够灵活旋转，并且完全密封，不会暴露在处理的液体里。
The shaft shall be hexagonal or square to ensure positive rotation of the disc and be totally sealed from exposure to the process liquid.
这类阀瓣具有不同的角度面对阀座，因此具有线接触作用，从而实现最大限度的密封。
Disc has a differential Angle front the seat to provide a line contact for maximum sealing.
并在理论上探讨将锥形阀瓣改为球形阀瓣，提高密封面的稳定性。
It also approach theoretically to change the conical valve gag into globe valve gag to raise the stability of the seal plate.
这样可以防止阀瓣密封边缘的损坏。
阀瓣密封根据需要时封面均堆焊接有硬质合金，密封面采用线密封，保证密封的可靠性，并可防止结疤。
Flap valve cover seals are required when there is carbide reactor welding, sealing surface with thread sealing, to ensure the reliability of sealing and prevents scarring.
特殊设计的偏置阀瓣结构能够快速从密封表面提升起来，最大限度减小磨损并降低操作力矩。
Specially designed offset disc lifts quickly from sealing surface to minimize wear and reduce operating torque.
当流体开始流动时，阀瓣在作用在密封表面中心的合力(F)作用下开启。
As flow begins, the plates open in response to a resultant force (f) which ACTS as the center of the sealed surface area.
阀瓣与阀座为软密封，密封性能好，无泄露。
Valve flap and valve seat for the soft seal, seal performance, no leakage.
当有流体通过阀门时，第一阀瓣开启从隔膜密封上离开。
With flow through valve, primary check opens away from diaphragm seal.
当流体通过阀门时，第一阀瓣开启，从隔膜密封上离开。
With flow through valve, primary disc opens away from diaphragm seal.
密封的弹性使得阀门阀体和阀瓣能够接触或扩张，避免了由于温度波动而产生堵塞的危险。
The resiliency of the seal allows the valve body and disc to contract or expand, without the risk of jamming due to temperature fluctuations.
软密封的主阀瓣能在95%以上的开启压力范围内获得高密封度。
Soft airproof main valve can obtain high airproof in the scope of over 95% lift pressure.
为了保证关闭严密，阀瓣与阀座密封面进行的研磨。
To ensure tight closure, and the valve seat valve sealing surface of the ground.
阀瓣采用弹簧加载，其快速关闭能有效的减小水锤压力，密封性能好，关闭无噪声。
The valve petal USES the spring to load, its quick closedown can effective reduce the hammer pressure, the sealing property is good, the closure does not have the noise.
一旦传感器输出偏离最初预期阀瓣末端位置值时，用户就可以立即检测到磨损密封件。
The user can thus detect a worn seal as soon as the sensor outputs a value that deviates from the originally expected flap end position.
阀座、阀瓣密封面均由铁基铬镍不锈钢焊条堆焊而成，提高了耐磨性和抗冲蚀性。
Both sealed surfaces of the seat and disc are overlaying welded with Fe base stainless steel welding rod so as to improve wear resistance and erosion resistance.
蝶阀上的这种旋转作用力取决于三个因素：(1)阀瓣与阀座密封的摩擦力；(2)轴承摩擦力；(3)动力矩。
This turning force in a butterfly valve is determined by three factors. (1) friction of the disc to seat for sealing (2) Bearing friction (3) Dynamic torque.
适用于各类阀门的阀座，阀瓣环形平面的密封研磨。
Suitable for various valve flap, flap ring panel seal grinding.
密封面用钴基硬质合金堆焊而成，阀瓣经热处理，提高了硬度。
The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc is improved.
采用上述密封结构的止回阀有良好的密封效果，能有效地防止阀体和阀瓣之间的泄漏。
The check valve by adopting the seal structure has great sealing effect, and the leakage between the valve body and the valve clack can be effectively prevented.
密封面用钴基硬质合金堆焊而成，阀瓣经热处理，提高了硬度。
The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc in improved.
阀瓣与阀体密封面经过精密研磨，组装完毕经过100%试压，全部达到零泄漏。
Valve with the valve sealing surface through precision grinding, assembly, after 100% completion of pressure test, all to achieve zero leakage.
我们提供的闸阀的结构形式具有两种：平行阀瓣和弹性楔形闸板。平行阀瓣为定位阀座密封；弹性楔形闸板在关闭时则是扭矩阀座密封。
Gate valves are offered in two designs: Parallel Disc and Flexible Wedge. Parallel Disc are position seated; Flexible Wedge are torque seated when closing.
柔性固定环在阀瓣上提供补偿性阀座密封压力。
The (3) flexible retaining ring provides a complementary seating pressure on the disc.
维修组件饱含：1件-柔性密封衬垫阀座，1件-铰柱，2件-阀瓣板，2件-阀瓣盖，1件-柱带，2件-阀座柱O形环和塑料总成螺丝。
Repair Kit Contains: 1-Flex Seal Gasket Seat, 1-Hinge Post, 2-Flapper Plates, 2-Flapper Covers, 1-Post Strip, 2-Seat Post O-Rings &Plastic Assembly Screws.
维修组件饱含：1件-柔性密封衬垫阀座，1件-铰柱，2件-阀瓣板，2件-阀瓣盖，1件-柱带，2件-阀座柱O形环和塑料总成螺丝。
Repair Kit Contains: 1-Flex Seal Gasket Seat, 1-Hinge Post, 2-Flapper Plates, 2-Flapper Covers, 1-Post Strip, 2-Seat Post O-Rings &Plastic Assembly Screws.
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