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Norm
ÖNORM EN 14367
Issue date: 2006 06 01
Non-controllable backflow preventer with different pressure zones - Family C, type A
This document specifies the:
field of application;
the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics
of...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 31 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This document specifies the:
field of application;
the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics
of non-controllable backflow preventer with different pressure zones, family C, type A, nominal sizes DN 6
to DN 50, nominal pressure PN 10.
It is applicable to:
Family C, type A, class a for general use: devices of class a shall be capable of working:
at any pressure up to 1 MPa (10 bar);
with any pressure variation up to 1 MPa (10 bar);
at a supply temperature limit of 65 °C and 90 °C for 1 h;
Family C, type A, class b for specific use: devices of class b shall be capable of working:
at any downstream pressure up to 0,3 MPa (3 bar);
with any downstream pressure variation up to 0,3 MPa (3 bar);
The devices of class b having specific hydraulic and no acoustic requirements and are meant for equipped
filling devices built-in one or two functions boilers (heating only or heating and production of sanitation hot water).
It concerns boilers with a 70 kW maximum power and maximum temperature of 110°C.
It specifies also:
test methods and requirements for verifying these characteristics;
marking;
presentation and the delivery.
ÖNORM EN 14367
2006 06 01
Non-controllable backflow preventer with different pressure zones - Family C, type A
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