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Vezzaro Augusto Guarnizioni has always keen to achieve the highest quality levels for its washers and gaskets. Procedures in use for years, special attention in manufacturing equipment maintenance, modern quality control instrumentation allow us to implement and measure the quality of our products, raising the quality target continuously. Even for that reason, important manufacturers in automotive field have honoured us by their partnership for many years as a supplier of components for original equipment as well as for aftermarket. Our rigorous control procedures assure high quality of our products and results into cost savings for our Customers because they do not have to carry out quality inspections at their end. From 1998, Vezzaro Augusto Guarnizioni is certified DNV-GL.
Vezzaro Augusto Guarnizioni has a qualified internal laboratory for the execution of hardness tests, dimensional and roughness measurements. The instrumentation is periodically calibrated with reference to primary samples by qualified personnel.
Hardness tester with a monitor to measure the indentation diagonal length and carry out the Vickers hardness value on raw material as well as on finished product.
Dimension measuring instruments like vernier callipers, micrometers (internal and external), calibrated dowel pins, ceramic rings and a profile projector.
To be able to satisfy special requirements of some of our Customers, we invested in a Hommel Tester in order to measure surface roughness of raw material and, when possible, finished products.
International standards about sealing ring and gaskets are:
INTERNATIONAL STANDARD |
DESCRIPTIONS |
DIN 7603 |
Ring seal and gaskets |
UNI 6602 |
Reference for the standard supply conditions |
In the table below raw material international standards are listes:
MATERIAL | DESCRIPTION | INTERNATIONAL STANDARD |
COPPER |
Cu 99,9% |
UNI EN 1652 |
BRASS |
CuZn37 (CW508L) |
UNI EN 1652 |
BRONZE |
CuSn6 (CW452K ) |
UNI EN 1652 |
ALUMINIUM |
EN AW-1050A (EN AW-Al 99,5) |
UNI EN 573-3 |
STEEL |
DC01, DC04 |
UNI EN 10130 UNI EN 10139 |
STAINLESS STEEL |
1.4310 - X10CrNi18-8 1.4301- X5CrNi18-10 AISI 304, 301, 316L |
EN 10088-2 |
International standards listed above are to be considered significant in terms of chemical composition.Mechanical characteristics could change as a result of our production process and can differ considerably from those of the semifinished product.
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