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Cast Ball Valve Maintenance work seems simple, but it is not. The professional maintenance of valves before welding, before production and after production plays a vital role in serving the valves in ...

Selection and location of valves (I) Principles for selecting valves used on water supply pipelines 1. When the pipe diameter is not greater than 50mm, a stop valve should be used. When the pipe diame ...

The selection of Ball Valve is the result of comprehensive and balanced comparison based on the rationality of operation, safety and economy. The following initial conditions must be put forward befor ...

Selection steps: 1. Clarify the purpose of Ball Valve in the equipment or device, and determine the working conditions of the valve: applicable medium, working pressure, working temperature, etc. 2. D ...

With the development of large-scale complete sets of technology abroad, a series of new complete sets of equipment and single machines have emerged. The characteristics of the development of new compl ...

For a long time, most industries in China have replaced old valves with new ones, and discarded or sold the replaced valves such as Ball Valve, gate valves, check valves, stop valves, filters, etc. as ...

Ball Valve, gate valve, check valve, stop valve, filter valve body commonly used materials are as follows: 1. Gray cast iron, suitable for low-pressure valves with working temperature between -15~+200 ...

Gate Valve refers to a valve whose closing part (gate) moves in the vertical direction along the axis of the channel. It is mainly used to cut off the medium on the pipeline, that is, it is fully open ...

1. In order to prevent the medium from backflowing, Check Valve should be installed on the equipment, devices and pipelines; 2. Check valves are generally suitable for clean media, and should not be u ...

Stainless Gate Valve has excellent cutting performance and has been widely used in the industrial field. Stainless steel has a wide range of uses. The actuator of the stainless steel gate valve pneuma ...

Stainless Ball Valve Pneumatic butterfly valve pneumatic actuator leaks. Stainless steel ball valve pneumatic butterfly valve is not closed tightly and leaks. However, the second situation is less com ...

What does single and double mean in ball valves and the difference between them? Time: 4/26/2019 7:08:41 AM Single ball valve is the abbreviation of single-acting pneumatic ball valve; double ball val ...

Ball valve standards: API 6D/ISO 14313 pipeline valves API 608 flanged, threaded and butt-welded steel ball valves ISO 17292 steel ball valves for petroleum, petrochemical and refining industries BS 5 ...

Check valve standards: BS 1868 steel check valve API 594 wafer and double flange check valves GB/T 12236 steel swing check valve SHELL SPE 77/104 steel check valve according to BS1868 ...

Globe Valve standards: BS 1873 Steel stop valve and stop check valve GB/T 12235 Flange and butt welding steel stop valve and stop check valve DIN 3356 Stop valve SHELL SPE 77/103 Steel stop valve acco ...

Gate valve standards: API 600/ISO 10434 Bolted steel gate valve for petroleum and natural gas BS 1414 Steel gate valve for petroleum, petrochemical and refining industries API 603 150LB corrosion-resi ...

Gate Valve Model compilation description example Z41H-16C Manual, flange connection, rising stem wedge-type rigid single gate, valve seat sealing surface material is Cr13 series stainless steel, nomin ...

"Today we are going to discuss the installation position of Check Valve. So how to determine the installation position of the check valve? What is the difference between installing the check valve bef ...

1. Introduction to Gate Valve 1.1. Working principle and function of gate valve: Gate valve belongs to the category of cut-off valves, usually installed on pipes with a diameter greater than 100mm, to ...

Ball Valve was introduced in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure, it has rapidly developed into a ...

1. First, manually adjust Gate Valve to the middle stroke position. 2. Connect the three-phase power supply from the large network system to the valve control box. 3. Manually press the valve opening ...

"How to determine the installation position of Check Valve? What is the difference between installing the check valve before the pump and installing it after the pump? Where is the installation before ...

Ball Valve The ball valve evolved from the plug valve. It has the same 90-degree rotation lifting action, but the difference is that the plug body is a sphere with a circular through hole or channel p ...

1. "Petrochemical Enterprise Occupational Safety and Health Design Code" SH3047-93, 2.2.7 stipulates: Equipment pipelines where material backflow may cause danger should be equipped with automatic shu ...

Gate Valve casting is an important part of the gate valve manufacturing process. The quality of the gate valve casting determines the quality of the gate valve. The following introduces several castin ...

Globe Valve is used to cut off the flow of the medium. The stop valve is suitable for occasions that need to be opened frequently. It is most commonly used in chemical production. The sealing parts of ...

Gate Valve uses the gate as the opening and closing part. The gate is driven by the up and down movement of the valve stem to open and close the valve. The movement direction of the gate is perpendicu ...

Stainless Ball Valve is widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industr ...

Stainless Ball Valve is widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industr ...

What standards do the stainless steel ball valves produced by Stainless Ball Valve manufacturers comply with? The standards for stainless steel ball valves are: 1. Design and manufacturing: GB12237-89 ...