Q:What does the valve stroke mean?

The distance from one position to another. Usually in the first position of the cut position, the second position is put through the position. Unless the valve has 3 positions.

Q:Which valves are installed in a directional manner?

Very simple answer to your valve, in addition to gate valve and butterfly valve (single line up, first closed), such valves are not directional, and other have

Q:There is a rectangular hole in the valve core, which the heating company repairman gives to the bolt. Rest assured, I do not want to heating, but my indoor temperature is low, I suspect that the repairman mischief, deliberately give me lower temperature

The valve has a device like a cylinder lock that opens with a special key.The heating valve refers only to a radiator system accessories, is a type of valve, the valve commonly used heating system on the market is mainly divided into: gate valve, ball valve, safety valve, balance valve, globe valve, regulator valve, relief valve, pneumatic control valve.

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:Is there any problem with connecting the geothermal valves with other geothermal pipes?

Yes, as long as it's all PPR's.Material is the same, the fuse will not cause shrinkage when you can use

Q:What is the choice of pneumatic valve or electric valve for ultrafiltration inlet control valve?

Now the UF system is basically full automatic system, that is to choose automatic valve. As for the pneumatic valve or electric valve, depending on your investment and the scene.

Q:What is the difference between the valve before the pump and the valve after the pump?

Pump in front of the gate valve + one-way valve, after the pump connected valve, so that in the regulation can be clearly aware of the actual pump lift is large, without the impact of system pressure.Valve is the general name of pumps and valves.A valve that is not used in a pump or with a pump.Pump and valve are often associated with the use of the occasion. In other words, where there is a pump, there is usually a valve, where a valve is often required. They are all used for liquid delivery.

Q:What are the production equipment in valve shop?

CNC machining center, double control vertical lathe, CNC lathe, CNC machine tools, heavy vertical double column lathe, spherical lathe horizontal boring machine, surface grinder, cylindrical grinder, lathe, milling machine, hydraulic head full bed, gate valve grinding machine, grinding machine, lathe, radial drilling machine,Powder plasma arc welding machine, thyristor rectifier, DC DC arc welding machine, welding machine, drying machine, trolley type resistance furnace, hook type shot blasting machine, medium pressure compressor, crane, pneumatic label printer, printer, compressed air sprayer spraying water line, air pressure box type resistance furnace. Forklift lifting platformLow temperature test equipment, metal and low temperature impact test machine, quantitative spectrometer imported carbon sulfide analyzer, microcomputer analyzer, spectrum analyzer, X-ray flaw detector X-, permeability detector, magnetic particle detector, ultrasonic thickness meter, digital ultrasonic flaw detector, metallographic microscope, hardness tester, precision analysis balance (hydraulic material testing machine), hydraulic valve testing machine hydraulic valve testing machine, submerged valve testing machine, steam trap test machine, valve testing machine, pressure testing machine temperature test machine

Q:What does the valve "4" mean?

This is an inch inch size, 4 inches =1/2 = 25.4mm = 12mm

Q:Representation of several types of valves

Valve type:Z gate valveJ stop valveL throttling valveQ ball valveD butterfly valveH check valve and bottom valveG diaphragm valveA safety valveT regulating valveX plug valveY pressure reducing valveS trapDZ solenoid valveO electromagnetic motionDrive mode:1. electromagnetic and hydraulic action2., electricity, a liquid3. worm gear4. the spur gear rotates5. bevel gear rotation6. pneumatic7. fluid movement8. air and one liquid movement9. electricOther hand wheel, handle, board hand, no performanceSide mode;1. internal thread2. external thread3. flanges (for double spring relief valves)4. flanges5. flanges (for lever type, safety door, single spring safety door)6. welding7. pairs of clips8. clamps9. card sleeveIllustrated cover or lining:T copper alloyH alloy steelB tin based shaft (bearing alloy)Y cemented carbideX rubberJ hard rubberSA PTFESB poly three fluoro ethyleneSC polyvinyl fluorideSD phenolic plasticsSN nylonValve body material:Z grey castings (usually not shown)X malleable ironQ nodular cast ironT copper alloyB lead alloyII chromium molybdenum alloy steelL chrome alloyP chromium nickel steelV (II) chromium molybdenum vanadium alloy steelR cr.ni.mo.ti steelF fluoroplasticP leather (Shen Penggang)S plasticD nitrided steelCJ lining adhesiveTC magnetic boringCS lined plasticCQ lined with leadW sealing ring is machined from valve body, C carbon steel (generally not shown)G ferrosilicon