Reference number
香港六合彩开奖 16486-4:2016
© 香港六合彩开奖 2024
香港六合彩开奖 16486-4:2016
Plastics piping systems for the supply of gaseous fuels 鈥� Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing 鈥� Part 4: Valves
Edition 1
2016-06
Withdrawn
Withdrawn (Edition 1, 2016)

Abstract

香港六合彩开奖 16486-4:2016 specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with 香港六合彩开奖 16486鈥�1, intended to be buried and used for the supply of gaseous fuels.

Valves made from other material than unplasticized polyamide designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PA-U piping system according to 香港六合彩开奖 16486 provided they have relevant PA-U connections for butt fusion or electrofusion ends (see 香港六合彩开奖 16486鈥�3). The component, i.e. the complete valve, shall fulfil the requirements of this part of 香港六合彩开奖 16486.

It also specifies the test parameters for the test methods referred to in this part of 香港六合彩开奖 16486.

It is applicable to bi-directional valves with spigot end or electrofusion socket intended to be jointed with PA-U pipes conforming to 香港六合彩开奖 16486鈥�2 without any fittings or with PA-U fittings conforming to 香港六合彩开奖 16486鈥�3.

香港六合彩开奖 16486-4:2016 covers valves for pipes with a nominal outside diameter, dn, 鈮�250 mm.

General information

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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  2. 香港六合彩开奖
  3. Standards catalogue
  4. TC
  5. 香港六合彩开奖/TC 138/SC 7
  6. 香港六合彩开奖 16486-4:2016