🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 1555-4:2021

BS EN 1555-4:2021

$142.49

Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE) – Valves

Published By Publication Date Number of Pages
BSI 2021 30
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It is applicable to isolating unidirectional and bi-directional valves with spigot ends or electrofusion sockets intended to be fused with PE pipes or fittings conforming to EN 1555-2:2021 and EN 1555-3:2021 respectively. Valves made from materials other than PE, designed for the supply of gaseous fuels conforming to the relevant standards can be used in PE piping systems according to EN 1555 (all parts), provided that they have PE connections for butt fusion or electrofusion ends, including integrated material transition joints, conforming to EN 1555-3:2021. It also specifies the test parameters for the test methods referred to in this document. In conjunction with Parts 1, 2, 3 and 5 of EN 1555, it is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar1 at a reference temperature of 20 °C for design purposes; NOTE 1 For the purpose of this document and the references to EN ISO 82332, MOP is considered to be nominal pressure. b) an operating temperature between −20 °C to 40 °C. NOTE 2 For operating temperatures between 20 °C and 40 °C, derating coefficients are defined in EN 1555-5. EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours. NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. This document covers valve bodies designed for connection with pipes with a nominal outside diameter dn ≤ 400 mm.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
2 Normative references
11 3 Terms and definitions
3.1 General
3.2 Terms relating to design
12 4 Symbols and abbreviations
5 Material
5.1 Compound for valve body
5.2 Material for non-polyethylene parts
5.2.1 General
13 5.2.2 Metal parts
5.2.3 Sealing materials
5.2.4 Greases and lubricants
5.2.5 Assembly
6 General characteristics
6.1 Appearance of the valve
6.2 Colour
6.3 Design
6.3.1 General
6.3.2 Valve body
6.3.3 Valve ends
14 6.3.4 Operating device
6.3.5 Seals
7 Geometrical characteristics
7.1 General
7.2 Measurement of dimensions
7.3 Dimensions of spigot ends for valves
7.4 Dimensions of valves with electrofusion sockets
7.5 Dimensions of the operating device
15 8 Mechanical characteristics of assembled valves
8.1 General
8.2 Requirements
8.2.1 General
21 8.2.2 Air flow rate
9 Physical characteristics
9.1 Conditioning
9.2 Requirements
22 10 Performance requirements
11 Technical file
23 12 Marking
12.1 General
12.2 Minimum required marking
24 12.3 Additional marking
13 Delivery conditions
25 Annex A (normative)Determination of the leaktightness of seat(s) and packing
A.1 General
A.2 Test piece
A.3 Procedure
A.3.1 Conditioning
A.3.2 Internal Leaktightness test (fully closed valve)
26 A.3.3 External Leaktightness test (half open valve)
A.4 Test report
27 Annex B (normative)Test method for leaktightness and ease of operation after tensile loading
B.1 Apparatus
B.2 Test piece
B.3 Conditions
B.4 Procedure
28 B.5 Test report

Related products

BS EN 1555-4:2021
$142.49