Approvals

1. Quality assurance system
Alfa butterfly valves are designed and manufactured in accordance with ISO 9001/EN 29001 and module H of the European legislation for Pressure Equipment Directive.

2. Type approvals
Alfa butterfly valves are approved for applications in a number of market areas by international classifications societies. The most important ones are listed in the following table.

MARKET AREA TYPE APPROVALS
Water supply KIWA
WRAS
Ship building Lloyds RS
Bureau Veritas
Det Norske Veritas
China Classification Society
American Bureau of Shipping
Fire protection systems TUV / ABS
General approval confirming for standard compliance EN 593
API 609

3. Product certificate

MARKET AREA TYPE APPROVALS
Ship building NKK
RINA
Lloyds RS
Bureau Veritas
Korean Register
Det Norske Veritas
Germanischer Lloyd
Indian Register of Shipping
China Classification Society
American Bureau of Shipping
Russian Maritime Register of Shipping

4. Material inspection certificates
Valve parts, eg body, disc, can be supplied on request with inspection certificates of the material supplier (foundry) according EN 10204, 3.1 subject to material type. Other specifications are possible.

5. Testing inspection certificates
All valves are pressure and functional tested after assembly according to internal quality procedures which comply with international standards. Inspection certificates according EN 10204, 3.1, 3.2 can be submitted on request.