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G 492 Technical Rule - Code of Practice 06/2021 -PDF-File-
55,79 €*
This Technical Rule G 492 governs planning, manufacturing,
assembly, testing, commissioning and operation, as well as decommissioning and
disposal of gas measuring systems of up to 100 bar1 in gas transportation and
distribution systems and stations supplying commercial, industrial, or other
comparable facilities.
G 493-1 Code of Practice 09/2012
55,79 €*
This Code of Practice G 493‑1 serves as a basis for certifying and awarding the DVGW certification mark to specialised companies that design, manufacture and set up turn‑key gas pressure regulating and gas measuring stations. Quality, safety and security have always been given top priority by the gas industry, and this shall continue to be so in the future. Company certification is indispensable for meeting this goal; this 5th edition of this Code of Practice provides the basis for certification. This Code of Practice describes not only the qualification criteria to be met by the relevant companies but also ‑ and in some more detail ‑ the fields of work in which appointed experts have to demonstrate particular knowledge. The fact that the Energy Industry Act (EnWG) has now broadened the meaning of the term ?biogas? to include hydrogen from renewable sources has created new qualification requirements for appointed experts. These requirements shall be amended if, when and as href= https://shop.wvgw.de/508694 >here. requirements set forth in this Code of Practice are eligible for certification.
G 493-2 Technical Rule - Standard 11/2019 -PDF-File-
55,79 €*
This standard G 493-2 encompasses personal and professional
requirements for companies providing maintenance for gas plants and
installations that fall within the scope of DVGW G 495 (A), as well as biogas
injection and refeeding plants as specified by DVGW G 265-2 or hydrogen
injection plants as specified by DVGW G 265-4 (M).Companies which, within the
context of comprehensive plant management, either as original operators or as
contractors, are responsible for the maintenance of energy plants, and possess
the required personal qualification and organization according to DVGW G 1000
(A), may conduct the maintenance of gas plants without certification as defined
by this standard within the network which they have the abovementioned
responsibility for. The prerequisite for the maintenance without certification
as mentioned above is that the expert and tech-nical conditions detailed in
this standard are met by the company’s own workforce or by service providers
with a TSM certification or other corresponding certifications. The company
shall appoint the experts re-sponsible for maintenance in writing. The
fulfilment of these conditions can be verified e.g. during a TSM review
according to DVGW G 1000 (A).
GW 315 Technical Rule - Standard 01/2020 -PDF-file-
35,91 €*
Code of Practice GW 315 provides essential information on
how to avoid damaging to existing supply systems during construction
operations. It applies to all construction work
and regulates the requirements for construction contractors and
operators of supply systems.
GW 368 Standard 02/2013
71,30 €*
The aim of this Standard GW 368 is to determine the lengths of pipeline to be locked against longitudinal forces.The Worksheet applies to ductile cast iron and steel pipes, fittings and valves. In principle, the formulaic correspondences described can also be applied to pipes in other materials. However, the properties of the other materials must be taken into account in each case, particularly specific weight and friction coefficient.