1. High temperature, high pressure medium pipe or device should choose the cut-off valve. such as thermal power plants, nuclear power plants, petrochemical systems, high-temperature, high-pressure Pipe road.
2. The pipe path with lax convection resistance Where the pressure loss is not considered.
3. The small valve may choose the needle valve, the instrument valve, the sampling valve, the pressure gauge valve and so on.
4. Has the flow adjustment or the pressure adjustment, but to the adjustment precision request is not high, moreover the pipeline diameter is relatively small, if the nominal passage ≤50mm the Tube road, appropriate chooses.
5. In the synthetic industrial production of small chemical fertilizers and large chemical fertilizers should choose the nominal pressure PN160 nominal pressure 16MPa or PN320 nominal pressure 32MPa high pressure angle-type cut-off valve or high-pressure angular throttle.
6. Alumina Bayer process in the production of silica workshop, easy to focus on the pipeline, easy to choose the valve body separate type, seat can be, the Carbide seal Deputy DC-type cut-off valve or DC-type throttle valve.
7. In the urban construction of water supply, heating engineering, the nominal path of the smaller pipeline, can be selected cut-off, balance valve or plunger valve, such as the nominal diameter of less than 150mm pipe road.