DIN 4900-2 2017-10 PDF

Full title and description

DIN 4900-2:2017-10 — Steel filter and solid wall pipes for wells — Part 2: Wire wrapped screens made of stainless steel. (German title: Filter- und Vollwandrohre aus Stahl für Brunnen - Teil 2: Wickeldrahtfilterrohre aus nichtrostendem Stahl.) This document specifies dimensions, masses, designation, materials, hygiene and mechanical requirements for stainless‑steel wire‑wrapped well screens and their connections for water wells.

Abstract

Defines requirements for wire wrapped (wickeldraht) screens with continuous slot widths in nominal sizes DN 100 to DN 800 for use in the construction and lining of water‑supply wells. The standard covers physical dimensions, material grades (stainless steel), hygiene considerations, mechanical strength and marking/identification for manufactured screens and their connections. It supersedes earlier DIN 4935 parts and is published by DIN.

General information

• Status: Current / valid standard.
• Publication date: October 2017 (2017-10).
• Publisher: Deutsches Institut für Normung (DIN).
• ICS / categories: 23.040.10 (Iron and steel pipes).
• Edition / version: Edition published October 2017 (DIN 4900-2:2017-10).
• Number of pages: 9 pages.

Scope

Applies to stainless‑steel wire‑wrapped screens with continuous slot widths in nominal diameters DN 100 up to DN 800 and to their connections intended for use in water‑production wells. The standard specifies dimensional series, mass/weight data, permissible materials (stainless grades), mechanical performance (e.g., strength and welding), hygiene requirements relevant to water supply, and rules for designation and marking. It does not replace national regulatory requirements for drinking‑water installations but establishes product requirements for manufacturing and testing.

Key topics and requirements

• Nominal sizes covered: DN 100 to DN 800 with continuous slot width specification.
• Dimensional and mass (weight) tables for standard screen types and their connections.
• Materials: requirements for stainless‑steel materials suitable for well construction and water contact (including hygiene considerations).
• Mechanical requirements: strength, welding and connection integrity for threaded or flanged joints as applicable.
• Designation, marking and documentation rules for traceability and identification.
• Replacement/supersession: consolidates and replaces earlier DIN 4935 parts (1, 2 and 3, 2002 editions).

Typical use and users

Used by well‑construction contractors, manufacturers of well screens and casings, water‑supply utilities, drilling equipment suppliers, consulting hydrogeologists and engineering firms specifying well completions for groundwater abstraction. Also referenced by standards bodies and conformity assessment organizations when assessing product compliance for well screen components.

Related standards

Replaces and consolidates DIN 4935‑1, DIN 4935‑2 and DIN 4935‑3 (2002). It is part of the DIN/DVGW work on well construction products and should be considered alongside other parts of the DIN 4900 series and relevant DVGW rules for water supply components. Users should also consult national drinking‑water and installation regulations where applicable.

Keywords

wire wrapped screen, wickeldrahtfilterrohr, well screen, stainless steel, well casing, DN 100–DN 800, slot width, well construction, DVGW, DIN 4900, dimensions, marking, hygiene.

FAQ

Q: What is this standard?

A: DIN 4900-2:2017-10 is a DIN standard specifying requirements for stainless‑steel wire‑wrapped well screens used in water wells (Part 2 of the DIN 4900 set).

Q: What does it cover?

A: It covers dimensions, masses, materials (stainless steel), hygiene and mechanical requirements, designation and connections for wire‑wrapped screens with continuous slot widths in nominal sizes DN 100 to DN 800.

Q: Who typically uses it?

A: Manufacturers of well screens and casings, well‑construction contractors, water utilities, hydrogeologists and engineering consultants specifying or procuring well screen components.

Q: Is it current or superseded?

A: The October 2017 edition (DIN 4900‑2:2017‑10) is the current valid edition and it superseded the older DIN 4935 parts from 2002. Users should verify any national amendments or more recent revisions before use.

Q: Is it part of a series?

A: Yes — it is Part 2 of the DIN 4900 series covering steel filter and solid wall pipes for wells; related parts and earlier DIN 4935 parts address other size ranges or connection types.

Q: What are the key keywords?

A: Wire wrapped screen, wickeldraht, stainless steel, well screen, DN 100–800, slot width, well construction, DVGW, DIN.