Page 5 of Services

Screwed connection valve:  This kind of connection is usually carried out by processing the valve inlet and outlet into taper or straight pipe thread so as to connect it to the tapered pipe thread or pipeline. However, this connection may lead to large channel leakage, so you have to use sealants,...

For flange leakage, you need to tight the bolt again. If not yet, open the flange to see if there is any damage to the flange gasket. For packing leakage, you need to compress the packing gland. If the packing is too loose, then add more packing. If the leakage is directly on the body, weld it (only...

1. Anti-corrosion. “Corrosion” is the process where the seal surfaces are eroded by medium. If the surfaces are destroyed, their seal ability will become poor. Therefore, the materials of seal surfaces must resist corrosion. Their anti-corrosion ability depends on their chemical stability....

Decompression valves are newly invented and applied to practice in recent years. They achieve extensive attentions in construction and fire-control water supply fields.   Decompression valves are installed on the outlet pipes of fire pumps. They are closed in normal times and automatically open...

There are various kinds of valves and many complicated working conditions. To choose the most suitable valves for pipe system, you should know:  First, the characters of valves;  Second, the steps and reasons to select valves;  Third, the principles of choosing valves for oil and chemical...

Nuclear power valves, due to their special, complex and harsh service conditions, coupled with large amount and wide range, have higher requirements.   1. Working Conditions of Nuclear Power Valves. Transport medium of nuclear power valves mainly contains: saturated steam, condensate, radioactive...

Purpose of Ventilated Butterfly Valves A ventilated butterfly valve is a type of non-sealed butterfly valves. It is widely applied in 0.1Mpa-NP pipes used in production process such as architecture, metallurgy, mine and electricity. It is used to connect, switch, or adjust pipes. 　　 Major Characters...

Evolving material has a significant impact on the development of ball valve. There are a wide range of materials for you choose, so valves become more reliable and the range of application becomes wider. Currently, a variety of stainless steels and corrosion resistant alloys, as well as improved polymers,...

Valves are control components that used in fluid delivery system. They are able to stop, adjust and guide the flow of fluids to prevent them from reverse flow and overflow. They can also regulate the pressure and separate the fluid. Thus, valves can be used in many industries with wide application scope....