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ČSN EN ISO 13693-1 (474062)
Irrigation equipment - Safety devices for chemigation - Part 1: Small plastics valves for chemigation
Translate name
STANDARD published on 1.9.2017
The information about the standard:
Designation standards: ČSN EN ISO 13693-1
Classification mark: 474062
Catalog number: 502679
Publication date standards: 1.9.2017
SKU: NS-693210
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN ISO 13693-1 (474062):
This part of ISO 13693 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 1 MPa (10 bar), - with any pressure variation up to 1 MPa (10 bar), and - in permanent duty at temperatures up to 45 °C and for 1 h at 65 °C
Preview of the standard ČSN EN ISO 13693-1 (474062)
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