BS EN ISO 13693-1:2017
Current
The latest, up-to-date edition.
Irrigation equipment. Safety devices for chemigation Small plastics valves for chemigation
Hardcopy , PDF
English
31-03-2017
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Designation
6 Materials
7 Design requirements
8 Characteristics and tests
9 Marking
10 Packaging
Annex A (informative) - Examples of presentation of
test results
Bibliography
Describes the general requirements and test methods for small plastics-bodied valves used for chemigation, hereinafter referred to as 'the device', intended for operation in irrigation pipe systems which may contain fertilizers and chemicals of the type and concentration used in agriculture.
| Committee |
W/-
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| DevelopmentNote |
Supersedes 12/30234126 DC. Renumbers and supersedes BS ISO 13693-1. 2017 Version incorporates corrigendum to BS ISO 13693-1. (03/2017)
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| DocumentType |
Standard
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| Pages |
32
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| PublisherName |
British Standards Institution
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| Status |
Current
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| Supersedes |
This part of ISO13693 specifies the general requirements and test methods for small plastics-bodied valves used for chemigation, hereinafter referred to as “the device??, intended for operation in irrigation pipe systems which may contain fertilizers and chemicals of the type and concentration used in agriculture.
It is applicable to controllable safety devices (also known as backflow preventers) with a reduced pressure zone (RPZ), intended to prevent backflow by back-siphonage or backpressure of irrigation water into an upstream potable water distribution system, whenever the pressure in the latter is lower than that in the system located downstream.
It is applicable to such devices of nominal size up to and including DN 50 (2??), with a nominal pressure of PN10, that are capable of working without modification or adjustment
at any pressure up to 1MPa (10 bar),
with any pressure variation up to 1MPa (10 bar), and
in permanent duty at temperatures up to 45°C and for 1h at 65°C.
| Standards | Relationship |
| EN ISO 13693-1:2017 | Identical |
| ISO 13693-1:2013 | Identical |
| ISO 9635-1:2014 | Agricultural irrigation equipment Irrigation valves Part 1: General requirements |
| ISO 7-1:1994 | Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation |
| ISO 9644:2008 | Agricultural irrigation equipment Pressure losses in irrigation valves Test method |
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