NEN EN 14367 : 2005
Current
The latest, up-to-date edition.
NON CONTROLLABLE BACKFLOW PREVENTER WITH DIFFERENT PRESSURE ZONES - FAMILY C, TYPE A
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 non controllable backflow preventer with different
pressure zones - Family C - Type A
3.2 Specific use
4 Nominal size (denomination)
4.1 Class a device
4.2 Class b device
5 Designation
6 Symbolization
7 Physico-chemical characteristics
7.1 Materials
7.2 Nature of the materials
8 Design
8.1 General
8.2 Relief valve
9 Characteristics and test methods
9.1 General
9.2 General tolerances
9.3 Expression of the results
9.4 End connections
9.5 Mechanical characteristics
9.6 Tightness characteristics
9.7 Hydraulic characteristics
10 Order of testing
11 Marking and technical documents
11.1 Marking
11.2 Technical documents
12 Presentation at delivery
Annex A (normative) Complementary test methods on
backflow preventers CA class b with a
plastic body
Annex B (informative) Examples of presentation of test results
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.