Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Anhui Lanzhong Electromechanical can customize various types of valves, and customers can provide relevant parameters or application scenarios of the valves for customization.

Valve customization requirements:

Different types of valves have different application scenarios, so if customers need to customize valves, they must provide relevant parameters to the manufacturer. Anhui Lanzhong Electromechanical has the ability to design and produce various types of valves. Customer-customized valves need to provide at least the following main parameters:

1.Nominal pressure

2.Nominal diameter

3.Media

4.Temperature

5.Connection method

6.Application scenario or working environment

Valve customization price:

The price of valves is related to the type, material, quantity and other factors of customization. For example, the price of ordinary valves is different from that of valves used in special scenarios. For example, the price of customizing 100 valves is different from that of customizing 500 valves. Therefore, the manufacturer of customized valves can only make quotations after understanding the basic application requirements. The following is the market reference price for Anhui Lanzhong electromechanical valve customization:

Unit price: 100 yuan/piece (specifically, the actual quotation shall prevail)

Valve customization pictures:

If some customers have requirements for the appearance design of customized valves, they can provide the valve drawings or Lanzhong Electromechanical can assist the customer in the appearance structure design. If the customer has no special requirements for the appearance and structure of the valve, it can be selected according to the conventional standard structure. The following are common styles of valve customization:

Common valve types:

Valve is a control component in the fluid transportation system. It has the functions of cutting off, regulating, diversion, preventing reverse flow, stabilizing pressure, diverting flow or overflow pressure relief. Valves used in fluid control systems range from the simplest stop valves to various valves used in more complex automatic control systems, with a wide range of varieties and specifications. Here are the different ways valves are classified:

1. Classification according to nominal size DN

①Small diameter valve: nominal size DN≤40mm.

②Medium diameter valve: nominal size DN50~300mm.

③Large diameter valve: nominal size DN350~1200mm.

④Extra large diameter valve: nominal size DN≥1400mm.

2. Classification according to nominal pressure PN

① Vacuum valve: a valve with low working pressure and standard atmospheric pressure.

②Low pressure valve: nominal pressure PN≤1.6MPa.

③Medium pressure valve: nominal pressure PN2.5~6.4MPa.

④High-pressure valve: nominal pressure PN10.0~80.0MPa.

⑤Ultra-high pressure valve: nominal pressure PN≥100.0MPa.

3. Classification according to medium working temperature

①Normal temperature valve: -29℃~120℃.

②Medium temperature valve: 120℃~450℃.

③High temperature valve: ≥450℃.

④ Low temperature valve: -100℃~-29℃

⑤Cryogenic valve: -196℃~-100℃.

⑥Ultra-low temperature valve: ≥-196℃.

4. Classification according to the connection method with pipelines

①Threaded connection valve: The valve body has internal threads or external threads, and is threadedly connected to the pipe.

② Welded connection valve: The valve body has a welding port (butt welding or socket welding) and is welded to the pipe.

③ Wafer connection valve: Use double-head thread to connect the valve between the flanges on the pipeline.

④ Clamp connection valve: The valve body is equipped with a clamp and is connected to the pipe by a clamp. (Such as: fire trench valves, food-grade quick-connect valves)

⑤Card sleeve connection valve: Use a clamp sleeve to connect to the pipe. (such as: air source ball valve, needle valve)

⑥Flange connection valve: The valve body is equipped with a flange and is connected to the pipeline through a flange.

Valve uses:

Valves have many uses, and different types of valves have different application scenarios. For example, shut-off valves are mainly used for opening and closing, and check valves are suitable for preventing the backflow of media. Therefore, it depends on what kind of scenario it is used in, and you can choose the corresponding valve. The following are the uses and types of various valves:

1. Shut-off valve: It is often installed on the inlet and outlet of cold and heat sources, the inlet and outlet of equipment, and branch lines of pipelines (including risers). It can also be used as a water release valve and an air release valve, and has the function of opening and closing.

Common types: gate valves, globe valves, ball valves and butterfly valves

2. Check valve: It is often located at the outlet of the water pump, the outlet of the trap and other places where reverse flow of fluid is not allowed. It is used to prevent the medium from flowing back. It uses the kinetic energy of the fluid itself to open by itself and close automatically when the reverse flow occurs.

Common types: swing check valve, lift check valve and wafer check valve

3. Regulating valve: A valve that can change the valve core stroke according to the direction and size of the signal to change the resistance number of the valve, thereby achieving the purpose of regulating the flow.

Common types: manual regulating valve, automatic regulating valve

4. Vacuum valve: Its function is to change the direction of air flow, adjust the size of air flow, and cut off or connect the pipeline in the vacuum system. The vacuum system component is called a vacuum valve.

Common types: vacuum ball valve, vacuum baffle valve, vacuum charging valve, pneumatic vacuum valve, etc.

5. Special purpose: The exhaust valve is an indispensable auxiliary component in the pipeline system and is widely used in boilers, air conditioners, oil and gas, water supply and drainage pipelines.

Common types: pigging valves, vent valves, blowdown valves, exhaust valves, filters, etc.