Q:How does the valve rust die?

Valve rust, and see what material, what type, the normal model iron, small, then change it directly. Large direct buy derusting lubricants, stainless steel just, then take the acid wash

Q:What are the types of valves?

1.2.1 sort by pressurex09 (1) vacuum valve operating pressure below standard atmospheric pressure valvex09 (2) low pressure valve nominal pressure PN is less than or equal to 1.6 MPa valve.x09 (3) medium pressure valve nominal pressure PN, 2.5, 4, 6.4 MPa valvex09 (4) high pressure valve nominal pressure PN 10.0~80.0 MPa valvex09 (5) high pressure valve nominal pressure PN = 100 MPa valve.1.2.2 classification by dielectric temperaturex09 (1) high temperature valve for medium working temperature T > 450 degrees of the valvex09 (2) medium temperature valve for medium temperature 120 degrees valvex09 (3) at room temperature valve for medium temperature -40 = t = 120 DEG C of the valve.x09 (4) low temperature valve for medium temperature -100 = t = -40 C of the valve.x09 (5) ultra low temperature valve for medium working temperature T < -100 DEG C valve

Q:What does the "Z45T-16" valve mean?

Z - gate valve4 - flange connection5 - Dark pole, stem non lifting (gate valve structure)T - copper alloy, valve sealing face code16 - pressure code, 1.6MPaMaterial code for grey cast iron valves of nominal pressure less than or equal to PN16 shall be omitted in model preparation.May refer to JB/T 308 valve model compilation method

Q:What are the major brands of valves abroad?

I say a few familiar: Tyco (the world's largest manufacturer of valves, the valve can provide almost all of it) Fuchs (a bit like, with the whole series of Tyco products)Blake (mainly butterfly valve, ball valve, chemical and water treatment applications up)Gaemi (diaphragm valve is doing very well) KSB (mainly in the power industry valve, globe valve, etc.)

Q:What do letters represent in the QF-2 and PX-32 valve models?

This is the material code, specific check: valve code. Just OK

Q:What valve is the YQZ45X-16Q?

Specifically, YQ usually is the enterprise code, Z valve, 4 representative flange, 5 representatives of the dark bar, X (soft) rubber seal (gate coated with rubber material), nominal pressure 16 representative (PN) 1.6Mpa, Q on behalf of the valve body is made of ductile cast iron. If you add the valve bore (DN), it will be more detailed.

Q:What is the use of each brand in the super high-rise, commercial complex, hotel? Price comparison of each brand? In the general valve, balance valve, electric valve, who did the best? Any knowledge about the valve, please ~ ~ thank you for your generous with your criticism

Watts is the origin of industrial water valve, after so many years of development, the current air-conditioning, water supply and drainage, fire, general valve Liwoci is most commonly used, compared with the best foreign brands.

Q:How do you calculate the valve wall thickness, pressure, and other valve design calculations in a spreadsheet?

Which standard does the wall thickness refer to? ASME B16.34?Design and calculation depends on what standard you chooseOr have you found the standard yourself and read it yourself?You choose what standards, design parameters reference, interpolation or fitting, how to fit, are their own sayI wrote a excel series of valve calculations, it does not take long to writeFor long-term useIn order to improve efficiencyOr write your own database program is better

Q:What's the name of the valve?

This is not a valve, it is a pipe bender.

Q:What do the D373W and D373H of the valve mean?

Butterfly valve, worm drive for the folder inclined plate, H alloy steel lining, W for the valve body directly processing sealing surface.