DS/EN 334

Gas pressure regulators for inlet pressures up to 100 bar

active, Most Current
Buy Now
Organization: DS
Publication Date: 10 February 2009
Status: active
Page Count: 107
ICS Code (Pressure regulators): 23.060.40
scope:

This document specifies constructional, functional, testing and marking requirements, sizing and documentation of gas pressure regulators used in the pressure regulating stations in accordance with EN 12186 or EN 12279: - for inlet pressures up to 100 bar and nominal diameters up to DN 400; - for an operating temperature range from 20 °C to +60 °C, which operate with fuel gases of the 1st and 2nd family in accordance with EN 437 in transmission and distribution networks and also in commercial and industrial installations. ""Gas pressure regulators"" hereafter will be called ""regulators"" except in the titles. For standard regulators when used in pressure regulating stations complying with EN 12186 or EN 12279, Annex ZA lists all applicable Essential Requirements except the external corrosion resistance in case of environmental conditions where corrosion is likely to occur. This document considers the following classes/types of regulators: - class 1: operating temperature range from 10 °C to 60 °C; - class 2: operating temperature range from 20 °C to 60 °C; - type IS: (integral strength type); - type DS: (differential strength type). This document applies to regulators which use the pipeline gas as a source of control energy unassisted by any external power source. The regulator may incorporate a creep (venting) relief device, complying with the requirements in Annex F. The regulators complying with the requirements of this document may be declared as ""in compliance with EN 334"" and bear the marking ""EN 334"". This document does not apply to: -- regulators upstream from/on/in domestic gas consuming appliances which are installed downstream of domestic gas meters; - regulators incorporated into pressure-regulating devices used in service lines with volumetric flow rate <= 200 m3/h at normal conditions and inlet pressure <= 5 bar; - regulators for which a specific document exists (e.g. EN 88, etc.); - industrial process contr ...

Document History

DS/EN 334
February 10, 2009
Gas pressure regulators for inlet pressures up to 100 bar
This document specifies constructional, functional, testing and marking requirements, sizing and documentation of gas pressure regulators used in the pressure regulating stations in accordance with...
June 30, 2005
Gas pressure regulators for inlet pressures up to 100 bar
This document specifies constructional and functional requirements, regular sizing, testing, documentation and marking of gas pressure regulators used in the pressure regulating stations: - for inlet...
November 15, 2000
Gas pressure regulators for inlet pressures up to 100 bar
This European Standrad specifies constructional and functional requirements, regular sizing, testing, documentation and marking of gas pressure regulators: - for inlet pressures up to 100 bar; - used...
October 11, 1999
Gas pressure regulators for inlet pressures up to 100 bar
This European Standrad specifies constructional and functional requirements, regular sizing, testing, documentation and marking of gas pressure regulators: - for inlet pressures up to 100 bar; - used...
Gas pressure regulators for inlet pressure up to 10 MPa (100 bar)
This European Standard specifies constructional, functional, testing, marking, sizing and documentation requirements of gas pressure regulators: - for inlet pressures up to 100 bar and nominal...
Gas pressure regulators for inlet pressures up to 100 bar
This document specifies constructional and functional requirements, regular sizing, testing, documentation and marking of gas pressure regulators used in the pressure regulating stations: - for inlet...
Advertisement