VDI 2073 Blatt-1 2014-05 PDF

Full title and description

VDI 2073 Blatt 1:2014-05 — Hydraulic systems in building services — Hydraulic circuits (German title: Hydraulik in Anlagen der Technischen Gebäudeausrüstung - Hydraulische Schaltungen). This part defines recommended hydraulic circuit types and fundamentals for the conceptual design and dimensioning of distribution systems used for heating, cooling and other hydraulically supplied building services.

Abstract

This guideline explains the basic principles for designing hydraulic distribution systems in buildings so that planning engineers, erectors and users avoid inappropriate circuit choices that increase energy use. It covers conceptual design of hydraulic circuit structures for various applications and gives rules for dimensioning pipes, valves and pumps; the document is intended to ensure proper function and energy-efficient operation of building distribution systems.

General information

• Status: Current — confirmed (R2018). A corrigendum (Berichtigung) was issued in November 2014.
• Publication date: 2014-05 (corrigendum 2014-11).
• Publisher: VDI (VDI-Gesellschaft Bauen und Gebäudetechnik / Verein Deutscher Ingenieure).
• ICS / categories: 23.100.01 (fluid power systems in general), 91.140.10 (central heating systems).
• Edition / version: VDI 2073 Blatt 1:2014-05 (with Berichtigung 2014-11); confirmed as the valid edition in 2018 (R2018).
• Number of pages: 42 (available in German and English).

Scope

Specifies fundamentals for the conception and design of hydraulic distribution systems in buildings (heating, air-conditioning and other hydraulically supplied systems). It addresses selection of hydraulic circuit topologies, basic rules for pipe, valve and pump sizing and illustrates common circuit variants to help ensure proper flow distribution and energy-efficient operation. The standard is intended for project-specific adaptation rather than factory-standard component design.

Key topics and requirements

• Recommended hydraulic circuit topologies for typical building-service applications (single-pipe, two-pipe, primary-secondary, variable-primary, etc.).
• Principles for conceptual arrangement of distribution systems to avoid common hydraulic faults that increase energy consumption.
• Rules and calculation guidance for dimensioning of pipes, valves and pumps to achieve intended flow distribution and minimise pumping energy.
• Examples and illustrative circuit diagrams to support selection and planning decisions.
• Reference to a corrigendum (Berichtigung) correcting element(s) of the original text published Nov 2014.

Typical use and users

Used by HVAC/plumbing designers, building-services engineers, installation contractors, system erectors, commissioning engineers and facility managers for the conceptual design, specification and verification of hydraulic distribution systems in residential, commercial and industrial buildings.

Related standards

Part of the VDI 2073 series on hydraulics in building services. Related documents include VDI 2073 Blatt 2 (hydraulic balancing / balancing verification) and VDI 2073 Blatt 3 (training / qualifications) as well as other TGA-related VDI guidelines; the 2014 edition replaces the earlier VDI 2073:1999-07. A corrigendum to Blatt 1 was published in November 2014.

Keywords

hydraulic circuits, hydraulic systems, building services, HVAC, piping design, pump sizing, valve selection, hydraulic balancing, VDI 2073, distribution systems

FAQ

Q: What is this standard?

A: VDI 2073 Blatt 1:2014-05 is a VDI guideline describing recommended hydraulic circuit types and fundamental principles for planning and dimensioning hydraulic distribution systems in building services (heating, cooling and similar systems).

Q: What does it cover?

A: It covers conceptual selection of hydraulic circuit topologies, guidance for sizing pipes, valves and pumps, illustrative circuit diagrams, and rules aimed at ensuring correct flow distribution and energy-efficient operation. A corrigendum was issued in November 2014 to correct elements of the original text.

Q: Who typically uses it?

A: HVAC and building-services designers, installation contractors, commissioning engineers, facility managers and others involved in planning, erecting and operating hydraulic distribution systems.

Q: Is it current or superseded?

A: The 2014-05 edition (with corrigendum 2014-11) is the valid edition and was confirmed (R2018). No later edition of VDI 2073 Blatt 1 was published as a replacement up to the available registry information; related parts of the VDI 2073 series have seen updates or new drafts in subsequent years. Users should check the current VDI catalogue or national standards registry for any changes after this notice.

Q: Is it part of a series?

A: Yes — it is part of the VDI 2073 series addressing hydraulics in building services. Other parts address hydraulic balancing (Blatt 2), trainings/qualifications (Blatt 3) and related topics.

Q: What are the key keywords?

A: Hydraulic circuits, distribution systems, heating systems, pump sizing, valve selection, hydraulic balancing, VDI 2073.