国产午夜精品久久久久久久蜜臀I激情久久五月I裸体美女免费视频网站I色a在线I爱爱无遮挡I大吊一区二区三区I私の知ら动漫未删减在线观I日韩少妇一区二区I中文在线观看视频I手机看片福利久久I国产精品亚洲欧美I日本cccc成人免费I日韩三级不卡I91精品久久久久久久久中文字幕I免费色站I亚洲免费av网站I亚洲伦理在线I日本黄色中文字幕I中文字幕高清在线播放Iwww.黄色免费I黄色a视频I蜜桃成人无码区免费视频网站I亚洲av无码专区在线播放中文I青青草一区二区三区I午夜视频在线观看免费观看

1 Angle stop valve selection of elegant style, in line with domestic and foreign standards, reasonable structure, beautiful shape.

2. Valve, valve seat sealing surface using iron-based alloy or stellite hardfacing alloy cladding made ??of cobalt-based

3. Wear, high temperature resistance, corrosion resistance, anti-abrasion performance and long service life.

4 Stem after the quenching and surface nitriding, has good corrosion resistance and scratch resistance.

5 .can be a variety of standard pipe flanges and flange sealing surface to meet the requirements of various engineering and user requirements.

6 .Angle full range of valve body materials, packing, gaskets according to actual conditions or user requirements reasonable matching can be applied to all kinds of pressure, temperature and medium conditions.

7 Back seat seal sealed with screw connection or welding austenitic stainless steel body is made, reliable sealing, replace the packing in the case of the non-stop, convenient, does not affect system operation

Angle valve performance specifications parameters:
Nominal pressure: PN1.6 ~ 10.0MPa;
Nominal Diameter: DN15 ~ 350;
Body material: steel, stainless steel (304,316,316 L);
Connection: flange;

Use media: water, steam, oil and other liquids, gases

J44H angle type valve performance range

二, J44H angle type valve main parts   Gray cast iron, malleable iron

三, J44H angle type valve structure, shape and  the main size

Angle type valve: in Angle valve, the fluid simply by changing a direction, so that the pressure drop through the valve structure than the conventional cut-off valve small.

Installation and maintenance: valve installation and maintenance should note the following: 1, hand wheel, lever operated valves can be installed in any position in the pipeline. 2, hand wheels, handles and Wei moving body does not allow for lifting purposes. 3, the flow of media should be consistent with the direction of the arrow shown in the valve body.