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Technical rule [CURRENT]

DVGW GW 327

Auskleidung von Gas- und Wasserrohrleitungen mit einzuklebenden Gewebeschläuchen
Edition 2011-03

Technical rule [CURRENT]

DVGW GW 329

Fachaufsicht und Fachpersonal für steuerbare horizontale Spülbohrverfahren - Lehr- und Prüfplan
Edition 2003-05

Technical rule [CURRENT]

DVGW GW 330

Welding of pipes and pipe-line components made of polyethylene (PE 80, PE 100 and PE-Xa) for gas and water lines - Teaching and testing instructions
Edition 2000-11

Draft technical rule

DVGW GW 330-B1

Welding of Pipes and Pipe-Line Components Made of Polyethylene (PE 80, PE 100 and PE-Xa) for Gas and Water Lines - Teaching and Testing Instructions - Amendment 1: Context, Training Centres, Plastic Pipe Systems for Higher Operating Pressures
Edition 2025-06

Draft technical rule

DVGW GW 331

Welding Supervisor for Plastic Pipe Systems in Pipe Networks - Requirements and Qualification
Edition 2025-06

Technical rule [CURRENT]

DVGW GW 331

Welding supervisor for weldings at PE-pipelines for gas and water supply - Training and examination schedule
Edition 1994-10

Technical rule [CURRENT]

DVGW GW 335

Components for Plastic Piping Systems in Pipe Networks
Edition 2024-11

Technical rule [CURRENT]

DVGW GW 335-A3

Kunststoff-Rohrleitungssysteme in der Gas- und Wasserverteilung - Anforderungen und Prüfungen - Teil A 3: Rohre aus PE-Xa
Edition 2003-06

Technical rule [CURRENT]

DVGW GW 335-A5

Plastic Piping Systems in Gas and Water Supply - Requirements and Tests - Part A5: PE Multilayer Pipes with Reinforcement (Oriented PE) and their Joints and Jointing
Edition 2015-12

Technical rule [CURRENT]

DVGW GW 335-B3

Kunststoff-Rohrleitungssysteme in der Gas- und Wasserverteilung - Teil B3: Mechanische Verbinder aus Kunststoffen (POM, PP) für die Wasserverteilung
Edition 2011-09

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