Positive gear gate valve applies to nominal pressure PN10.0 ~ 25.0Mpa, operating temperature - 29~600 degrees of petroleum, chemical, thermal power plants and other working conditions on the pipeline, cut off or switch on the media. Applicable medium: water, oil, steam and so on. The operating modes are manual, gear drive, electric, etc..
Z441H, Z441Y, Z440H, Z440Y positive gear gate valve structure features:
1., in line with the requirements of advanced standards at home and abroad, reliable sealing, good performance and beautiful appearance.
2. gate and valve seat sealing surface of iron based alloy surfacing or Stellite cobalt based alloy surfacing and wear resistant and heat resistant, corrosion resistant, anti abrasion performance and long service life.
3.. The stem is hardened and nitrided and has good corrosion resistance and scratch resistance.
4., wedge type elastic gate structure, large and medium diameter rolling bearings, small friction, easy to open and close.
5. can use a variety of piping flange standards and flange sealing surface type, to meet the needs of various engineering and user requirements.
Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of various types of gate valve. Please contact 021-6651 8677 or consult online.
1.符合国内外先进标准的要求,密封可靠,性能优良,造型美观。
2.闸板与阀座密封面用铁基合金堆焊或司太立(stellite)钴基硬质合金堆焊而成,耐磨、耐高温,耐腐蚀,抗擦伤性能好、使用寿命长。
3.阀杆经调质和表面氮化处理,有良好的搞腐蚀性和抗擦伤性。
4.采用楔式弹性闸板结构,中大口径设置滚动轴承,摩擦力小、启闭轻松。
5.可采用各种配管法兰标准及法兰密封面型式,满足各种工程需要及用户要求。
设计与制造: GB12234
结构长度: GB12221
压力温度等级: GB9131 GB/T74 HG20604
连接法兰: JG/T79 GB9113 HG20593-20635
试验与检验: GB13927 JB/T9092