黑水阀阀芯采用上导向结构，阀体流道呈带斜面的球形空腔结构，阀座设计遵循文丘里加速原理，阀芯和阀座采用喷焊或整体烧结硬质合金，达到防冲刷、耐磨损的作用，该产品具有防堆堵，抗冲蚀，大流通能力，可调范围广等特点。主要适用于控制含有硬质颗粒的多相流体如水煤浆等。 

执行机构和选配薄膜式和气缸活塞执行机构。

It is used for the quench cycle control of gasifier. It is installed at the outlet of gasifier, the inlet of scrubber and flash tank. It is a standard product for the gasification process of quench processes such as Texco, GSP and HT.

The integral cemented carbide of valve head and valve seat and streamlined flow channel design are suitable for severe working conditions such as high pressure difference, strong scouring, strong corrosion, medium containing solid particles and so on

1. The black water angle valve adopts venturi design as the top guide structure,

2. The valve body adopts diaphragm design, which can effectively prevent the medium isolation from impacting the packing part and prevent the medium particles from entering the packing gap, resulting in packing leakage and valve stem scratch,

3. The guide sleeve adopts the design of spiral pin groove, which has the function of self-cleaning. The medium particles can be discharged automatically from the spiral groove to avoid the guide jamming.

4. The valve core and valve seat are sintered by WC, with ultra-high strength, hardness and heavy brush resistance.