High Voltage Stainless Steel Corrugated Expansion Joint

• After-sales Service: 12 Months
• Warranty: 12 Months
• Customized: Non-Customized
• Condition: New
• Power Source: Electric
• Automatic Grade: Semi-Automatic
• Type: Iron-Making Equipment
• Certification: ISO, CE
• Standard: DIN, ANSI, GB, JIS
• Material: Stainless Steel
• Connection: Flange
• Surface Treatment: Galvanized Sheet
• Head Type: Round
• Pressure: 0.75MPa
• Cycle Life: 10000 Times
• Temperature: -35ºC~150ºC
• Delivery: 15-30 Days
• Transport Package: Carton/Wooden Case
• Specification: DN80-DN1200mm
• HS Code: 73079900
• Production Capacity: 1000000 Piece/Year

Product Description

High Voltage Stainless Steel Corrugated Expansion Joint

 

 

Technical Data Sheet
Design Pressure:≤0.75Mpa	Design Temperature:-35ºC~150ºC
Axial Movement:-20mm~20mm	Lateral Movement:-10mm~10mm
Medium :Sulfur Hexafluoride Gas or other gas of arc extinction and insulation.
Cycle Life: Above 10000 times

Performance & Characteristic:

As the connector unit between the covers of two adjacent equipments, Expansion Joint for High Voltage Apparatus are mainly used for adjusting the installation, compensate the relative displacement and the movement caused by expansion and contraction. Generally 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).

Because of 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 joints can balance the pressure thrust 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 ≤1%,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 that is why require to the gas tightness is pretty high.

This expansion joint used as an electric elements, require the all surfaces are very smooth and no cusp, or there maybe electric discharge, influence the insulating property of the products.

 

Variety and the Form of Structure
Variety	Form of Structure	Device of Pressure Balance
Installation Compensator	Bellows welded onto the flange	-
	Bellows welded onto the Tube Ends and the Tubes Ends welded onto the flange.	-
Temperature Compensator	Bellows welded onto the flange	Disc Spring/No device of Pressure Balance
	Bellows welded onto the Tube Ends and the Tubes Ends welded onto the flange.	Disc Spring/No device of Pressure Balance
	Bellows welded onto the Fanstone Flange	Disc Spring/No device of Pressure Balance
	Pressure Balance Bellows	Self Balance of this structure

Our Product Range:
 

Axial Expansion Joints

Externally Pressurized Expansion Joints

Burying expansion joints

Rubber Bellows

Marine Expansion Joint

Metallurgical Expansion Joint

Industrial Compensator