domain of usage:

Prevent water backflow.

Application temperature range: up to 70 degrees Celsius

Production range: DN50…DN800, PN10…PN40

Attributes:

– Quick and gentle closing

Reference standards in design and construction

Face to face dimensions of two valve flanges according to the standards: DIN3202-1 SeriesF15

Dimensions and drilling of flanges according to standards: DIN-EN 1092/1-2, DIN2501, ISO7005/1-2

Hydrostatic tests (sealing, pressure resistance and functional): ISO 5208

Type of cast iron: gray cast iron: DIN-EN 1561 GJL 250 DIN1691 GG-25

Ductile iron: DIN-EN 1563 GJS400-15 DIN 1693 GGG-40

Inner and outer coating: epoxy electrostatic powder paint/epoxy liquid paint.

Important notice: For installation and operation, pay attention to the instructions of the one-way valve of the disc spring model of Novidkariz friends.