a:quick reply (I will reply u with 2 hourse)
b:professional advise ( I wll provide u advise regarding to your request)
c:100% quality control (All magnets will be inspected before shipment)
d:100 shipment on time (I will inform u if any delay)
c:Best after sale service (Just contact if there is any questions)
2.Qucik facts about Dunben
·Was established in 2004, as trading company
·Factory was founded in 2010
·Specialized in developing and producing Bonded Magnet and NdFeB Magnet
·Have more than 100 employees (including 8 technicians and 15 salesman and 20 quality control)
·Annual sales in 2016 is around 3 millions, export amount is around 2 millions
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3.NdFeB Magnet                                 Â
NdFeB, NIB or Neo magnet, the most widely used type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure.
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4.NdFeB Magnet features
|
Description |
NdFeB Â magnet Manufacturer |
|
|
Material |
Neodymium-Iron-Boron |
|
|
WorkingTemperature |
Grade |
Max. Operating Temperature |
| Â |
N35-N52 |
80°C (176°F) |
| Â |
33M- 48M |
100°C (212°F) |
| Â |
33H-48H |
120°C (248°F) |
| Â |
30SH-45SH |
150°C (302°F) |
| Â |
30UH-40UH |
180°C (356°F) |
| Â |
28EH-38EH |
200°C (392°F) |
| Â |
28AH-35AH |
220°C (428°F) |
|
Magnet Shape |
Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized shape are available. |
|
|
Magnet Coating |
Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more. |
|
5. Package of NdFeB magnet
a. Carton size is: 32X24X26CM
b. Gross Weight of each carton is about 13KG
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6.NdFeB Magnet delivey time &shipment
a:3-5days for sample
b:25-30days for large quantity
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Ball valve is evolved from the plug valve, its opening and closing parts as a ball, using the ball to rotate 90 degrees around the axis of the stem to achieve the purpose of opening and closing, the difference is that the cock body is a ball, with a circular through hole or channel through its axis. The ratio of the sphere to the passageway should be such that when the ball is rotated 90 degrees, the inlet and outlet should be completely spherical, thus cutting off the flow.
The role of ball valve in the pipeline is mainly used to cut off, distribute and change the direction of media flow, designed into the V-shaped opening ball valve also has good flow regulation function.
Ball valve is not only simple in structure, good sealing performance, but also in a certain nominal range of small volume, light weight, less material consumption, small installation size, and driving torque is small, easy to operate, easy to realize rapid opening and closing, is one of the fastest developing valve varieties in recent decades. Especially in the United States, Japan, Germany, France, Italy, West, Britain and other industrial developed countries, ball valves are widely used, the variety and number of use is still continuing to expand, and to high temperature, high pressure, large mouth, high sealing, long life, excellent regulatory performance and a valve multifunctional direction, its reliability and other performance indicators have reached a higher level, And has partially replaced Gate Valve, Globe Valve, Regulating Valve.
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