丹富斯全焊接球阀材质：

1）：阀体：碳钢ST37.0，A106-B；20号钢

2）：球体：不锈钢304或316

3）：阀杆：2Cr13

4）：阀杆密封：全氟像胶

5）：球体密封：RTFE（PTFE+C）

丹富斯焊接球阀性能：

1）：不需要维护，调整及润滑，易于安装，在低运行费用下长期可靠运行。表面采用喷塑处理技术，光泽美观，在国内已处于水平。不会有外部泄漏等现象。阀体是焊接结构，所以阀门重量轻且易于进行绝缘。安装调节机构，非常简便，操作手柄可以拆下，换向安装。

2）：由于阀座是由碳纤维增强特氟隆密封环及碟形簧构成的，所以对压力和温度的变化适应能力强，在标注压力和温度范围内不会产生任何泄滑。

3）：球体的加工过程有先进的计算机检测仪跟踪检测，所以球体的加工高。

4）：由于阀体材料跟管道材质一样，不会出现应力不均，也不会由于地震及车辆经过地面时而产生变形，管道耐老化。

5）：整体式全焊接，等径及变径通道，采用固定球及浮动球，双活塞效应密封系统，自动

注入密封剂式轴承。

6）：为了防止静电，阀杆与球体以及阀杆与填料箱之间分别装有钢球和弹簧，可以保持阀门所有零件与阀体的导电，让电流通过区，释放静电。不仅防止火灾，而且防止腐蚀，实现临时性切断，以便及时检修。

7）：阀杆防脱功能是因为阀杆受阀内压力影响，总产生脱离的力所以阀杆设计成防脱结构。

8）：用低摩擦材料的止推垫圈支撑将压力推向阀杆，使阀杆仅仅起到传递扭矩的作用。

Dan fuss full welded ball valve material:

1) : body: carbon steel ST37.0, A106 - B; 20 # steel

2) : sphere: stainless steel 304 or 304

3) : stem: 2 cr13

4) : stem seal: perfluorinated like glue

(5) : ball seal: RTFE PTFE + C)

Dan fuss welded ball valve performance:

1) : I don't need to maintain, adjust and lubrication, easy to install, low in operating cost under long-term reliable operation. Surface using pensu processing, gloss and beautiful, has been in a leading level in China. There won't be the phenomenon such as external leakage. The body is welded structure, so the valve light weight and easy for insulation. Install regulator, it is very simple, the operation handle can be removed, reversing the installation.

2) : because the seat is made of carbon fibre reinforced teflon seal ring and disc spring, so the ability to adapt to the change of pressure and temperature, the annotation of pressure and temperature range will not produce any drainage and smooth.

3) : the sphere have advanced computer processing detector tracking detection, so the sphere of high machining accuracy.

4) : as the body material as pipe material, won't appear uneven stress, also won't because of the earthquake and the vehicle through the ground deformation, occurs when pipe ageing resistance.

5) : integral whole welding, such as diameter and variable diameter channel, the fixed and floating ball, double piston effect sealing system, automatically

Injecting sealant bearing.

6) : in order to prevent electrostatic, stem and sphere and valve stem and packing box with a ball and spring respectively, between conductive can keep all parts of valve and valve body, let electricity pass through are area, release of static electricity. Not only prevent fire, and to prevent corrosion, the realization of a temporary cut, in order to timely maintenance.

7) : stem resistance function is because a pressure in the valve stem, always so the force generated from stem designed to prevent to take off the structure.

8) : the thrust washer with low friction material support will be pressure to the valve stem, the stem just have the effect of torque.