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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:
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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