Slim Disc Wafer Butterfly Valve Cast Iron / Ductile Iron Material

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About Product

1. Small in size and light in weight; Easy installation and maintenance; It can be mounted wherever needed

2. Simple and compact construction, quick 90 degrees on-off operation.

3. Minimized operating torque, energy saving.

4. Bubbles-tight sealing with no leakage under the pressure test.

REASONS FOR CHOOSE US

1.We are direct proucer of butterfly valves, check/non-return valves, gate valves and so on.

2.We can offer you most professional technical support.

3.All valves are tested twice before and after hammer pin to ensure its perfect sealing property.

4.Valves' back seats are phenolic resin under DN350 while above DN400 are aluminium back seat to prolong its working life.

5.Concentric valves can ensure zero leakge.

Q:I'm going to put a solar energy and an electric water heater installed in the same hot water pipe, a valve, a valve open and close the valve B and vice versa the installation of solar and electric water heater, there can be no linkage valve?: Yes, three ball valves (T and L) are two. Switch more complex point of the valve is basically ball valve, such as central air-conditioning commonly used to the four - way reversing valve.

Q:How do you calculate the flow of the valve?: Valve flow calculation value is very vague, pipe pressure, back pressure, medium viscosity, medium temperature, valve structure, and so on, will affect the calculated value.

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:In the fire drawing, what valve does the following valve represent?: This is definitely the sprinkler system. It's a drain valve, a ready valve. You check it. I can't remember it. It has not been drained for a long time.

Q:The low pressure in our factory is below 1.6Mpa, medium pressure is 2.5-6.4MPa, high pressure is 10-80MPa.Where's qusetion:1.6-2.5Mpa??? Which section does it belong to?. I think many of them are defined on the Internet But I didn't say, where's 6.4-10Mpa?: No 1.6-2.5Mpa levels are included in the range of the mid pressure valve.

Q:Which valve can play a good regulatory role?: A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.

Q:1) the valve plate, valve gate valve, the difference (my personal understanding is that if it is on the ball, called the valve, if the valve is called the gate, is actually a meaning in different valve called, please help me understand it right?)2) valve clack. What's the spool?3) the valve seat is welded inside the valve, or is it directly installed inside without welding?4) when opening the valve, if the valve seat is not welded, then, under the pressure of the medium, why not open the seat?.5) excuse me, pressure self sealing (my personal understanding is that when the valve is closed, the valve plate and valve seat depend on the pressure of the media, and they fit together to seal the effect: 1. can be understood that way2, check valves, stop valves, and throttle valves are called valves3., welding, thread, and there is a cylindrical indentation, as well as plastic deformation press in4, without opening, there is a sphere or other block, open the moment, the pressure will come down, the media through the channel, attack or blocked by the ball, huh, huh5, the pressure self tight refers to the middle flange, where the greater the pressure, the more reliable sealing, within a certain rangeWhen the cut-off valve diameter is less than 150, the medium is low, the inlet is higher and the outlet diameter is greater than 200Some of them are self locking by thread, and some of the globe valves are equipped with locking devices

Q:What kind of industry does valve belong to?: Valves are machinery and industry equipment；Valve belongs to general mechanical equipment

Q:How can the material be checked by valve approach? What experiments do you need?: First of all, to check material certification, and secondly, the material appearance, shape and size of the initial test, again on the alloy material according to the standard spectrum analysis, the valve to do pressure test.

Q:What is the purpose of the valve?: 6. Indicate and adjust the level of the liquid. Such as liquid level indicator, liquid level regulator, etc..7, other special uses. Such as temperature control valve, over-current protection, emergency shut-off valve and so on. In the above valves, the valve used to connect and cut off the medium flow in the pipeline, the use of the total number of about 80% of the total number of valves.

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