Steel caps, caps flange (deaf flanges ) are the details of the pipeline serving for overlapping of a working environment. The main difference of a cap from a flange is absence at it the central opening. Parameters of a cap have to correspond precisely to a detail to which it is interfaced: material (steel brand), working pressure, geometrical sizes. Simplicity and speed of installation of flange steel caps, is their main advantage.
The flange of the deaf steel is applied on pipelines of common industrial appointment, at the enterprises of housing and communal services and on objects of a petrochemical complex. Steel caps are applied in the range of temperatures from-70 to +650 °C, and with a working pressure from 0,6 MPas to 16 MPas.
Flange caps are made according to the following standards:
Caps flange steel. A design, the sizes and technical requirements" on OST 26-11-07-85.
Caps flange steel. A design, the sizes and technical requirements" on ATK 24.200.02-90.
Caps with a connecting ledge flange. A design, the sizes and technical requirements" on OST 34-10-428-90.
By production of steel caps - the flange of the deaf steel - is used by the following brands of staly: steel 20, steel 09G2S, steel 08X18H10T, steel 12X18H10T, steel 10X17H13M2T, steel 06HN28MDT.
Caps of ATK-24.200.02-90 of Art. 3, Art. 20, Art. 09g2s