FOB Price
أحصل على آخر سعر10 / Piece
|Minimum Order
Place of Origin:
china
Price for Minimum Order:
Minimum Order Quantity:
10 Piece
Packaging Detail:
-
Delivery Time:
10
Supplying Ability:
1000000000 Piece per Month
Payment Type:
Western Union
الشخص الذي يمكن الاتصال به Mr. Tony
No.181,HuiZhan Road ,Ningbo city, China 315000, Ningbo, Other
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Expansion Joint for High Voltage
Apparatus
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Structure Diagram
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Technical Data Sheet |
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Design
Pressure：≤0.*5Mpa
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Design
Temperature：**5℃～**0℃
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Axial
Movement：**0mm～*0mm
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Lateral
Movement：**0mm～*0mm
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Medium：Sulfur
Hexafluoride Gas or other gas of arc extinction and
insulation.
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Cycle Life:Above ****0
times
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Performance & Characteristic As a connect unit between the covers of two
adjacent equipment , Expansion Jointfor High
Voltage Apparatus mainly used for adjusting the installation,
compensate the relative displacement and the movement caused by
Expansion and Contraction. General expansion joints always used
under the condition of High Stress (Namely, large movement), but
this expansion joint always used under the
condition of Low Stress (Namely, small
movement).
As the holder of the composite apparatus can’t
bear much pressure, so the structure should be designed to Pressure
Balance Type so that the expansion jointscan
balance the force produced by inside pressure rely on the elastic
force of the disc spring to reduce the pressure on the holder. The
composite apparatus are full of expensive media of SF6 gas, annual
air leakage ≤1ï¼…,or it will lower the reliability of the products
when it operating, if seriously, it will lead to the power cut and
the overhaul of the whole system, so the require to the gas
tightness is pretty high.
This expansion jointused as an
electric elements, require the inner surface is very smooth and no
cusp, or there maybe electric discharge, influence the insulating
property of the products.
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Variety and the Form of Structure |
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Variety |
Form of Structure
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Device of Pressure
Balance
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Installation
Compensator
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Bellowswelded onto the
flange
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—
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Bellows welded onto the Tube Ends and the Tubes
Ends welded onto the flange.
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—
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Temperature
Compensator
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Bellows welded onto the
flange
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Disc Spring/No device of Pressure
Balance
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Bellows welded onto the Tube Ends and the Tubes
Ends welded onto the flange.
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Disc Spring/No device of Pressure
Balance
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Bellowswelded onto the Fanstone
Flange
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Disc Spring/No device of Pressure
Balance
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Pressure Balance
Bellows
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Self Balance of this
structure
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Test Methods before delivery |
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Test of Performance
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Welding Joint
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Physical Dimension
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Tolerance of the
dimension
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Axial Spring Rate
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Test of Compensation
Rate
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Pressure Test
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Pressure Stress Test
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Test of the
stabilization
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Test of the Air
Tightness
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Test of Cycle Life
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Test of bursting
pressure
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Air Tightness Test to the
Sulfur Hexafluoride Gas |
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Expansion Joints for High Voltage Apparatus
