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固定球管线球阀

型号:

发布日期:11-20

产品详情

技术指标

Technical indicators

压力等级 Pressure class

PN 10/16/20/25/40/50 Class 150/300

口径

Caliber

对夹式 Wafer type: DN25-250 /1~10B                                          

法兰式 Flange type: DN25-400 / 1 ~16-


性能特点:

管线球阀使用聚合材料作为阀座密封,密封座用弹簧加载, 在较广的温度变化和压力变化范围内具有优良的密封性能, 确保在关闭压差作用下达到无气泡泄漏的密封,且在最大 压差下仍可保持最小操作扭矩。

The pipeline ball valves have excellent seal function under wide temperature variety and pressure variety because pipe ball valves use polymers compounding as seat seal which uses spring loaded, therefore no air bulb leakage will be retained under closing differential pressure and Min. operation torque will be attained under Max. differential pressure.


锻钢结构

球阀的阀体和连接体采用锻钢材料,阓门内件经过精心选择,确保在各种工况下能可靠地工作。体的壁厚和阀体螺栓的连接强度按美国标准ASME B16.34的要求,经过严密计算,确保相应的阀体压力等级和结合部的可靠强度。

 

操作扭矩低

球阀采用固定球结构,浮动餒座,在操作压力下达到较小的扭矩。采用了具有自润PTFE的金属轴套,与高强度、高光洁度的阀杆配合,使摩擦系数降到最低。

 

Forged steel structure

The valve body and connector of ball valve are made of forged steel while its inner parts are exquisitely selected, so as to ensure the product to operate reliably under various work conditions, The wall thickness of the body and the connection strength of valve bolts is performed as per ASME B15.34. the relating pressure class and reliable strength of joint is insured through strict calculation.

 

Low operating torque

Fixed ball and floating seat is applied in ball valve, by which ow torque can be attained under operating pressure。 Self-lubricating PTFE metal axle sleeve is used with high-strength and high-polished stem to enable friction coefficient smallest。


 

密封可靠

镶嵌有适合不同压力级的聚合材料密封座是浮动的,并由弹簧加载,在关闭位置时,始终与球体保持紧密接触,达到可靠的密封。每台阀门在出厂前均按AP6D进行全面验收,也可按API598或GB/T13927进行验收,在确保其结果完全符合要求并出具试验报告后才可出厂。

 

Reliable sealing

The polymeric sealing seat suitable for various pressure classes is floating and loaded by spring, keep close contact with the body at Off position, thus reliable sealing is reached Before delivery, each valve is wholly examined as per API 6D, API598 or GB/T 13927 and test qualified in the written test report.


 

辅助阀座密封

通经大于等于6英寸(DN150)的球阀设计有辅助阀座密封系统。当软阀座密封受到一定的损伤,出现微量泄露时,通过向辅助密封系统注射的密封剂可辅助密封。辅助密封系统在必要时也可用来对阌座区域进行沖洗润滑,以保持其清洁。

注:小于等于4英寸(DN100)的球阀阀体上没有一个清洗阀,该清洗阀为注射清洁剂而用,无辅助密封功能。

 

Auxiliary valve seat sealing

Shown in the following diagram, the ball valve its diameter is greater than and equal to 6 inches (DN150)is provided with auxiliary valve seat sealing system. When soft sealing is damaged for a certain degree and minor leakage is occurred, the auxiliary is obtained by the sealant injected by auxiliary sealing system. The system also can wash and lubricate the seat as necessary in order to retain the Cleanness.

Note: (As shown in Diagram 1)a cleaning valve is set at ball valve body its diameter is less than and equal to 4 inches(DN 100), this cleaning valve is available for injecting cleaner and has no sealing function.


 


可靠的阀杆和阀体密封

球阀使用符合国际先进标准的氟橡胶O形圈和石墨垫片作为阀杆密封和阀体密封材料,确保了阀门在各种工况下均有可靠的密封。根据工况或用户的要求,还可提供防止减压爆裂的氟橡胶O形圈作为密封材料,以保证在压力剧烈波动的情况下达到更为可靠的阌杆和阀体密封。此外,大部分阀门的阀杆安装有辅助密封装置。

 

 

 

Reliable sealing to stem and body

The stem and body sealing materials respectively employ fluorubber O-ring and graphite gasket meeting the requirements of international advanced standards to ensure reliable sealing under various work conditions.Fluorubber O-ring preventing from pressure reduction explosion can also be applied for sealing materials in order to ensure the sealing of stem and body under

severe fluctuation。 Besides, mos: of stems are installed with auxiliary sealing device。



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