Stainless steel ventilation ring with handles about average50 mm, 70 mm and 100 mm. The solid frame ensures perfect holding and tension of the fabric, the frame is complemented by a raised hem with a height of 1 mm and four tabs, the 100 mm version has six tabs. These tabs serve for fastening in the material. The ring is developed as a ventilation hole especially for plastic boxes. A huge advantage is that the ring can be used repeatedly.
50 mm version: recommended opening for installation - 40 mm or 41 mm
70mm version: recommended installation hole- 59mm or 60mm
100 mm version: recommended opening for installation - 89 mm
Stainless steel ventilation ring with handles
Technical specifications of the material:
Stainless fabric is made of circular cross-section wires according to ČSN 153110, DIN ISO 9044 standards.
The production of metal fabrics is certified by the quality control system according to ČSN EN IS0 9001:2000. Maximum usable air temperature 300 °C.
Binding: smooth.
CHROMIUM NICKEL austenitic unstabilized steel (1.4301).The chemical composition complies with the standard for the use of products for food and drinking water. Applicability for catering establishments, external structures, external architecture, waterworks, wastewater treatment plants, etc. Corrosion resistance in common type environments (water, weak alkalis, weak acids, industrial and metropolitan atmospheres). New marking according to ČSN 10088-1 1.4301 ( X5CrNi 18-10 ), old marking AISI 304, ČSN 17240, AKV 7 Alloying: Cr 17 - 19.5%, Ni 8 - 10.5%, C < 0.07%