Q:G what's the meaning of the valve?

Valve with other function or with other special mechanism, fill in a Chinese language before the valve type code number

Q:How about the valve?

The British Hudson Valve Co. Ltd. (HUDDERSFIELD VALVES LIMITED), founded in 1964, its predecessor for the British metal parts company (ART METAL FABRICATION LTD AMF, referred to as LTD), located in the world famous one of the UK's Huddersfield valve production center (HUDDERSFIELD), the main production of various kinds of valve, valve cage valve and other valve manufacturers supporting. .

Q:such as gate valve, three way plug valve

The pressure gauge shall be fitted with three way cock.The safety valve does not install any valves and other components on the boiler. Can be installed in the pressure vessel, but when the equipment is running to handle and open the valve, plus seals, hang the obvious mark, a warning can not be closed.

Q:How to carry out the valve strength test and air tightness test?

Refer to the GB/T13927 or ISO5208 standards and need to pass it to you

Q:Excuse me American Standard pressure test valve GB standards are much ~ is how much valve pressure can play much pressure? Thank you

The standard is different, the test is not the same, what kind of valve you, a domestic valve only do stress testing, in fact, the pressure can generally be guaranteed, many are bad at high temperature or life testing above

Q:What does the J41Y-100I valve type mean?

J41Y-100I flange type chrome molybdenum steel valve forgingJ represents the cut-off valve, 4 (flange) on behalf of his connections, 1 (straight) on behalf of his structure, Y (seal) on behalf of his seat sealing surface or liner material code, 100 is the nominal pressure value, I (chrome molybdenum steel) is the code of the body material

Q:What does the PN on the valve mean?

1, mark "ON25" and "PN16" respectively what does that mean? 2, the valve above has an outer six corners, so PN16 refers to the nominal pressure of 16 kg valve. Valves on the fittings are standard parts, special

Q:The valve is rusty and can not be opened. What shall I do?

For removing loose rust agent Penpen, later replaced

Q:What does the valve "4" mean?

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

Q:Why is the valve on the pipeline not the same size as the pipe, and how much of a crude pipe can be given? Thank youI'm sorry, I didn't make it clear that when doing pipe work in the factory, for example, 60 of the pipe, and in this pipeline to install the valve to choose DN50, and so on.

If the valve from the opening and closing role, then the valve bore should be the same diameter with the pipe, big waste, small, increase resistance.If the role of the valve is adjusted, and that caliber will be different from the pipe diameter, this is not to reduce the cost of the problem, is a result of calculation, and this calculation results with flow, pressure drop and valve resistance curve.For example, control valve, usually smaller than the pipe diameter, such as pressure reducing valve, will be smaller than the pipe diameter to two.