XD series of tubes-oil level gauge is a specialized product sealed transformer,this product using high quality seamless steel tubes or diecast aluminium tube,the appearanceof electrostatic spray,meet the three requirements.Oil level indicator installed on theupper part of the box,blue indicates oil level correctly,the Red oil level lower.Open 60 hole on the lid of the transformer,flange and cover seal welding.Note:when installing the flange welding,right Is oil level indicator to installation direction,and then welding.Screwtype base oil level meter installed gasket,tighten can directly. The oil level gauge display box cover 20mm under the oil level is normal.
Effective diameter | Opening pressure | Opening pressure deviation | Closing pressure | Seal pressure |
Φ25mm | 15 | ±5 | 8 | 9 |
25 | 13.5 | 15 | ||
35 | 19 | 21 |