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G 459-2 Technical Rule - Standard 11/201555,79 €*
This Technical Rule G 459‑2 applies to the design, installation, testing, commissioning, operation and maintenance of gas pressure regulating systems within the scope of DVGW Standard G 459‑1 with inlet pressures up to 5 bar1 and a maximum nominal flow rate of 200 m3/h under normal conditions for the supply of residential and office buildings, council housing as well as mixed‑use buildings and buildings housing public, cultural and commercial facilities ? to the extent that these are comparable to buildings of residential use ? with gases whose properties meet the requirements of DVGW Standard G 260, with the exception of liquefied petroleum gas (LPG)2, and which are supplied by public gas utilities. This Standard does not cover industrial production plants.
G 2000 Technical Rule ? Standard 05/201771,30 €*
This DVGW Standard G 2000 integrates into the existing structure of laws, ordinances and technical rules on the design, construction, operation and maintenance of gas supply networks. It follows the principle of subsidiarity and represents ? together with the DVGW Set of Rules and other relevant technical regulations? the minimum technical requirements for the interoperability of and connection to systems of the gas supply network in an objective and unbiased way.The requirements of DVGW Standard G 262 and DVGW Guideline G 292 shall be observed in respect of the injection of renewable gases into public gas supply networks.The overall recognised technical rules continue to apply in full to the design, construction, operation and maintenance of gas supply networks and systems.
G 213 Technical Rule - Standard 10/201355,79 €*
This Standard shall also apply, mutatis mutandis, to gas mixing plants that supply process gas to trade and industry and to industrial gas mixing plants for in‑house mixed‑gas supply.Gas mixing plants are frequently integrated into gas measurement and pressure reduction stations, which latter shall meet the specifications of DVGW Standards G 491 and G 492. In other words, most of the requirements specified in these Standards will also apply to gas mixing plants. All other requirements that go beyond the scope of G 491 and G 492 are described in this Technical Rule at hand, which first and foremost complements DVGW Standard G 491.
G 260 Technical Rule 09/2021 -PDF file-99,55 €*
This Technical Rule G 260 specifies the requirements for the quality of fuel gases used in the supply of the general public with gas and sets the parameters for gas delivery, gas transportation, gas distribution, gas storage, operation of gas plants/systems and gas appliances for commercial and industrial gas applications as well as for development, standardization, and testing. Gases transported in separate pipelines which are not used in the supply of the general public, or are used as energy carrier or resource, and/or are used in special gas appliances are not subject to the scope of this Technical Rule.
G 265-1 Code of Practice 03/201499,55 €*
This Code of Practice G 265‑1 serves as a basis for designing, manu‑facturing, constructing, testing and commissioning plants for upgrading biogas to natural gas quality, plants for injecting these gases into gas transmission and distribution systems, and plants for the refeeding of gas into the upstream gas supply network. This DVGW Code of Practice provides a summary overview of the minimum requirements on the technical safety of plants and components required for the utilisation of biogas, from upgrading plants through to compressor stations; pressure control, href= https://shop.wvgw.de/509052 >here. the injection into the gas supply network as added or substitute gas. At the same time, one focus was on the indispensable coordination between the ? generally different ? plant operators.
G 265-3 Technical Guideline 05/201455,79 €*
href= https://shop.wvgw.de/509113 >here. This Guideline G 265‑3 shall apply to the design, construction, manufacture, construction, testing, commissioning and operation of plants for the injection of hydrogen into gas transmission and supply networks for gases in accordance with DVGW Code of Practice G 260, including the necessary service lines and ancillary equipment. This DVGW Guideline complements DVGW Code of Practice G 265‑1 and DVGW Guideline G 265‑2 by specifying the technical safety requirements to be observed in respect of the material properties of hydrogen and hydrogenated natural gas for the plants described in the preceding paragraph. It furthermore complements the requirements on pipelines specified in DVGW Codes of Practice G 462‑1, G 462‑2 and G 463 by describing the specific requirements in respect of hydrogen. Additionally, it explains how to handle hydrogen measurements during the course of injection.
G 280 Technical Rule 12/2018 -PDF file-99,55 €*
This Technical Rule G 280 applies to all gases covered in DVGW Codes of Practice G 260 and G 262 respectively Standards DIN EN 16723-1 and -2 as well as DIN EN 16726 and all gases used for the supply via pipeline system of the general public and other consumers with a comparable level of safety. When using sulfur-containing odorants, the fact shall be taken into account that the entailed increase of the sulfur content in the gas is undesirable for some applications, such as its use as basic material in the chemical industry. Industrial companies using natural gas exclusively on company premises can forego odorization if the operator utilizes other measures to maintain the industrial gas plant or system’s safety. When switching from one odorant to another, special attention shall be paid to Section 9. The calibration of measuring devices for odorant control requires test gases which are detailed in Section 10.
G 402 Code of Practice 07/201171,30 €*
This Code of Practice G 402 has been elaborated by the ?G 401? project group within the Technical Committee on ?Gas distribution?. It shall serve as a basis for the collection and evaluation of data to devise mainte‑nance strategies for gas distribution systems. Maintenance comprises inspection as well as service and repair activities. The respective DVGW Codes of Practice define the fundamental principles applying to inspection and service activities. This Code of Practice G 402 focuses on the collection and evaluation of data that form the main basis for repair planning. The requirement for gas distribution systems to be permanently kept in a condition guaranteeing their technical safety and reliability necessitates timely and ongoing maintenance and service activities. These activities shall be planned in advance. Maintenance strategies shall be integrated into corporate processes, the collection of major grid data being a prerequisite for introducing such strategies. Beyond this, condition‑based maintenance requires ascertaining and evaluating grid conditions by means of adequate systems. This Code of Practice describes the fundamental procedure for ascertaining, collecting and evaluating maintenance‑relevant data and offers examples illustrating how to prepare and evaluate them. This Code of Practice does not specify a standard data collection procedure for creating a planning concept in conformance with href= https://shop.wvgw.de/508331 >here.
G 410 Code of Practice 05/201771,30 €*
This code of practice represents the conceptual restructuring of the DVGW damage and incident statistics data registration procedure. Code of Practice G 410 details the criteria for data registration which form the basis of the new DVGW database. The new database contains all relevant information and features a user interface suitable for data entry and data provision. The reporting procedures are supervised and ensured by the DVGW and apply to both pipelines with a maximum allowable operating pressure of above 16 bar and analogously to gas‑related facilities, according to the recommendations of the International Gas Union.
G 415 Technical Rule ? Standard 09/201555,79 €*
This DVGW Standard can be used as a guideline as it summarises the minimum requirements specified in the DVGW Sets of Rules that shall be observed by design firms, specialist contractors, operators and the involved authorities during the design, construction and operation of gas pipework for the transmission of untreated or partially treated biogas. The clause on ?Design? also draws attention to the fact that the pertinent approvals and / or permissions shall be obtained prior to the start of construction of pipework planned to cross e. g. water bodies, roads and railways.Gases produced by fermentation processes such as e. g. biogases obtained from agriculture that are generally used to meet internal requirements and / or to power decentralised systems such as e. g. combined heat and power plants, are untreated or partially treated biogases that are not considered gases in accordance with DVGW Standard G 260.Nonetheless, the documents that form part of the DVGW Set of Rules that are referred to in this Standard shall also be applied to pipelines that transmit untreated or partially treated biogas.
G 450 Guideline 09/201755,79 €*
This Guideline G 450 shall be used together with DVGW Standard G 466‑1. It intends to promote a standardised approach to pigging gas pipelines that operate under positive operating pressure and contain a product.This Guideline is based on the long‑standing, tried and trusted safety philosophy and experience of the German gas sector.