Q:What are mine valves?

In fact, much, no matter what the industry, with many types of valves. You want to see what works on the use of what media, in the choice of what type of valve is more appropriate.

Q:such as gate valve, three way plug valve

The lower part of the pressure gauge installed water pipe, there are water, avoid high temperature, medium pressure gauge contact directly cause damage, so regular cleaning, in order to avoid congestion, three way plug function is used for flushing, please see "how to operate them.".

Q:Which brand of electric valve is good?

The electric actuator imports now commonly used with Omar, Rotok, SIEMENS, you should still work to decide which Denso, such as regulating type? Switch mode? Intelligent? Regular type? There are valves can choose some well-known brands

Q:Valve category can fill the trunk door, branch valve Mody?

Valve category can fill the trunk door, branch valve? "no, too general."

Q:How to find all kinds of mysterious valves of human body?

Many cell signal channels have been found, and if you can find each signal, the channel will be almost the same. That's the mysterious valve you want, but it's hard.

Q:What does the "XV" valve mean?

XV if in front of the valve position, such as XV2211-011, then the XV indicates the switch valve, which is a representation of the Control Valve relative to the regulating valve.

Q:What valve should be used to test the water valve?

1, ball valve.2, the water test valve can be ball valve, gate valve, stop valve, installed in the fire sprinkler system at each level of the end of the pipe.

Q:Look at the flow chart, some of the valves are marked with FV, and some are marked with XV. What does that mean?And what do you mean by the Cv value on the valve nameplate?I hope the heroes give a clear explanation ah, it is best to give an introduction of this knowledge of the web site oh.Thank again.

FV or LV on the flow chart, which represents the instrument bit number, FV is flow valve, and LV is level valve.The valve on the nameplate CV value, it is a measure of the size of the valve flow, it is the concept of 40 - 60 degrees Fahrenheit in the water, the pressure drop of 1 psi, in a valve opening per minute flow through the valve (U.S. gallons).

Q:What is the valve?

valveDefinition of scientific and technical termsValveEnglish Name: valvevalveValve is a control component in the fluid delivery system. It has the functions of closing, adjusting, guiding, preventing reverse flow, stabilizing voltage, shunting or overflow and releasing pressure. Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow.Definition 1: a device used to control flow in a pipe.Subject: electricity (first level discipline); hydraulic construction (two disciplines)Definition 2: equipment installed in a pressure pipe to control the flow of water.Subject: Water Conservancy Science and Technology (first level discipline); hydraulic construction (two disciplines); gate and hoist (three disciplines)Valve historyThe valve is produced with the flow of the pipe. Human valves have been used for nearly 4000 years. In ancient China from the brine well absorb salt brine, once in a bamboo pipe used in cork valve. In the 1800 BC, the ancient Egyptians used similar wooden cocks to control the distribution of water to build large water conservancy projects to prevent the Nile from overflowing. These are the embryonic form of the valve. The extensive use of industrial valves began only after Watt invented the steam engine. In the early twentieth Century, there were valves of cast steel, wrought steel and forged welded joints.

Q:How can the material be checked by valve approach? What experiments do you need?

Under normal circumstances, in the selection of the valve has been considered the main components of the valve material, the use of the valve to determine (for example, media, temperature, pressure, etc.), the valve can not change the material used. For higher or special purpose valves, in addition to the normal valve strength, sealing test, the main material must be used for the inspection and confirmation. The chemical composition and mechanical properties of the valve body, valve cover, sealing surface, valve stem, packing and sealing parts shall be examined. Samples can be taken in bulk or tested with test sticks attached to the product.