First, what's DVGW?
DVGW (German Association of moisture - Science and Technology Association) since 1859, dedicated to water and gas since the establishment of specialized technology, economic development, and has been particular attention to safety, health and environmental protection.
DVGW is a nonprofit association. It is in politics, economic independence and neutrality. Association is also the exercise of the functions of a number of countries. Legislators only to develop the overall goals of protection and security. DVGW experts will carry out specific work.
In other words: water and gas expertise with industry self-imposed rules, so DVGW technical rules established by the German supply industry, the management of the safety and reliability of a solid foundation.

DVGW offers the following five services:
1, to develop guidelines and industry standards
2, editing and publication of water vapor through the technical criteria for professional recognition. To participate in Germany, Europe and the global standardization work
3, testing and certification
4, the independent supervision of water and gas professional products, employees and business and quality systems (QSS quality and safety systems, QMS Quality Management System)
5, DVGW as standards setting, certification and information centers, and many colleagues to shape the European energy market, does not believe in domestic or international, DVGW always follow the principle is: for the majority of professional members and the water vapor to bring the greatest benefits .

Second, institution organization
Management agencies: the Federal Health Office,
Lab: DVGW accredited laboratories,
Panel: Federal Health Office BGVV
DVGW headquarters in Bonn and its service centers to develop guidelines for vocational training, academic exchanges of information and research certification
The training of policy makers in Berlin, DVGW and Continuing Education
Located at the Karlsruhe Research and Testing Center EB
Water at Karlsruhe and Dresden Technical Center Division and at the University of Hamburg Research Center
Group 9 and 63 federal states to protect the regional groups and members of close contact.

Third, basic certification process
DVGW participated in the test results and certification system for dealing with mutual recognition of the various European institutions on matters relating to the work. Products include: faucet, tubes, valves and other plumbing products and gas nozzle type valve installations or pipes, pipe joints, etc. basic tests KTW W270, W347
Certified basic process:
--- Product ingredients, use, document the provision of information
--- WQ testing types, including health, hazardous materials leaks, microorganisms (certain products) test,
--- Test environment, 3X72-hour precipitation, TOC (total organic carbon)
Hot and cold water flow test, chlorine test, others have the possibility of odor, cellular precipitation, color test.
--- Accepted standards: DVGW W347 (combination strength) or W270 (Microbiology)
--- Certified Duration: 5 years

Fourth, services we provide
In Germany, DVGW is in charge of testing and certification of all public water supply pipeline products receiving institution. But they have no overseas offices.
The company will help you understand the DVGW certification and KTW (non-metallic parts of the detection test approved) certification procedures and fill out the application form, provide the relevant standard and sample requirements, the product line and product portfolio with recommendations, and certification consultation counseling services.