Needle valve is a valve that can be precisely adjusted, with a wide range of uses, such as on sawing for flame cutting, the knobs for adjusting the temperature of the flame is the needle valve.

Check valves allow flow in one direction and automatically prevent flow in the opposite direction.

This thin type of single-plate wafer check valves are swing type, that performs the same with swing check valve with much less cost. The disadvantage of this single-plate wafer check valves is, the inside diameters of the valves can only meet 60-80% of Norminal Pipe Size(NPS), which limits the flow coefficient.

Single-plate wafer check valves prevent reverse flow with disc movement that is parallel with the flow. With this design, the disc is always in the flow path.

Flame arrester ventilation cap is used for urban industrial and mining enterprises,gas stations,and it's an important accessory. Be installated in the tank(or pumping delivery valve not over 25m²/h of light oil on a small tank).

Breathing valve is a kind of air breather which install on the petrochemical fixed storage tank, in order to avoid tank over the pressure or vacuum making the storage tank destruct, prevent the outside flame enter, reduce the tank fluid volatile.

It is one of the measures to protect the drainage gas system in all coal mine gas drainage systems.

The Y-Strainers consists of a housing with opposite arranged inand outlet flanges at the same level.