šŸ”„šŸ”„ Donā€™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.

šŸ”
BS EN ISO 22435:2024

BS EN ISO 22435:2024

$167.15

Gas cylinders. Cylinder valves with integrated pressure regulators. Specification and type testing

Published By Publication Date Number of Pages
BSI 2024 40
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. Weā€™re here to assist you 24/7.
Email:[email protected]

This document specifies design, type test methods, marking and instruction requirements for cylinder valves with integrated pressure regulators (VIPRs) intended to be fitted to gas cylinders, pressure drums or tubes or used as a main valve for bundles of cylinders that convey compressed, liquefied or dissolved gases. These are requirements for VIPRs that are in addition to those given in the relevant closure standard, for example, in ISO 10297 for cylinder valves, in ISO 17871 for quick-release cylinder valves, in ISO 17879 for self-closing cylinder valves or in ISO 23826 for ball valves. For ISO 17871, these requirements are only applicable to quick-release cylinder valves types B, C, D and E. NOTE 1        If the pressure regulating system of a VIPR is acting as the primary valve operating mechanism, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826. This also includes designs where closure of the primary valve operating mechanism of a VIPR is obtained by closing the seat of the pressure regulating system. NOTE 2        If the primary valve operating mechanism of a VIPR is located at the low-pressure side of the pressure regulating system, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826. NOTE 3        The term ā€œpressure receptacleā€ is used within this document to cover instances where no differentiation is necessary between gas cylinders, bundles of cylinders, pressure drums and tubes. This document does not apply to VIPRs for a)       medical applications (see ISO 10524-3); b)       liquefied petroleum gas (LPG); c)        cryogenic applications. NOTE 4        Additional requirements for a VIPR with a residual pressure device (RPD) are specified in ISO 15996. NOTE 5        Additional requirements for pressure relief valves can exist in international/regional regulations/ standards.

PDF Catalog

PDF Pages PDF Title
2 undefined
16 5.1 General
17 5.2 Description
5.3 Materials
5.4 Pressure and flow indicating devices
5.4.1 General
5.4.2 Flowmeters
18 5.4.3 Pressure indicators and flow gauges
5.5 Outlet connection
5.6 Outlet pressure for acetylene
5.7 Flow control valve (flow controller)
5.8 Pressure adjusting device
5.9 Filtration
19 5.10 Endurance of the VIPR pressure regulating system
5.11 Flow and pressure performance for a VIPR with a pressure outlet
5.11.1 Flow performance and characteristics
5.11.2 Coefficient of pressure increase upon closure R
5.11.3 Irregularity coefficient i
5.12 Flow performance for a VIPR with a flow metering device
5.13 Pressure relief valve
20 5.14 Leakage
5.15 Mechanical strength
5.16 Pressure resistance
5.17 Resilience to ignition
21 5.18 Design requirements for manufacture
5.19 Resistance to vibration
5.20 Resistance to shock
5.21 Over torque of the pressure adjusting device
6.1 General
22 6.2 Documentation
6.3 Test samples
23 6.4 Test report
6.5 Test temperatures
6.6 Test gas
6.6.1 Gas quality
6.6.2 Reference conditions
6.6.3 Leak tightness tests
6.6.4 Endurance of a VIPR pressure regulating system
6.7 Test schedule
25 6.8 Mechanical strength test of the low-pressure chamber
6.9 Pressure resistance test of the low-pressure chamber
6.10 Mechanical strength test of flowmeters
6.11 Overpressure and leak tightness test for pressure indicators and flow gauges
6.12 Flow and pressure performance test for a VIPR with a pressure outlet
6.12.1 General
6.12.2 Standard discharge, Q1, nominal outlet pressure, p2, and maximum discharge Qmax test
26 6.12.3 Flow characteristic test
28 6.12.4 Coefficient of pressure increase upon closure R test
6.12.5 Irregularity coefficient i test
31 6.13 Accuracy and flow stability of a VIPR with a flow metering device test
6.14 Pressure relief valve test
6.15 Operating and loosening torques test
6.16 Endurance of the VIPR pressure regulating system
32 6.17 Leak tightness test
6.17.1 Number of samples
6.17.2 Internal leakage across the regulating valve seat
6.17.3 External leakage
33 6.18 Visual examination

Related products

BS EN ISO 22435:2024
$167.15