New Features
Learn about new features in LINEAR software.
System Requirements
Learn more about the system requirements for using the LINEAR solutions.
Supported Norms and Standards
Learn which norms and standards support the LINEAR Solutions modules.
LINEAR Installation and Administration
Learn how to install, your LINEAR software, license and keep it up to date.
Getting Started
Get basic information about the structure, function, and interaction of the LINEAR Solutions programs in Revit and LINEAR Building.
Preparing Building
Learn how architects prepare plans and models to create a building model for building analysis.
Pre-Concept Design
Learn how to collaboratively localize and dimension equipment rooms and how to create pipeline corridor concepts.
Analyzing Buildings
Get information about the requirements analysis of a building. The demand analysis includes the calculation of the heat load, the cooling load and the ventilation concept.
Dimensioning Components
Learn how to dimension radiators, convectors, panel heating and concrete core activation systems on the basis of the requirements analysis in LINEAR Building and manufacturer-specific.
Inserting Components
Learn how to insert components from the LINEAR CAD Browser, from the libraries and configurators of the library tab or from LINEAR Building into the model.
Constructing Networks
Learn how to create pipe and duct networks, design slots and openings and manage discipline-related reports and tasks.
Calculating Networks
Learn how to calculate pipe and duct networks.
- Requirements for a Calculable Pipe- and Duct Network
  Explains the requirements for a calculable pipe and duct network.
- About Virtual Components
  Explains the concept of virtual components in pipe and duct network calculations.
- About Pipe Network Calculation Heating and Cooling
  Explains the concept of the pipe network calculation for heating and cooling.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Air Duct Network Calculations.
  - Settings
    Explains the concept of Settings in the Pipe and Air Duct Network Calculations.
  - Material data
    Explains the concept of the material data in the pipe network calculation for Heating, Cooling and Potable water.
    - Set Default Material
      Shows step-by-step how to set default material for automatic assignment in your model.
    - Creating a User-Defined Material Combination
      Shows step-by-step how to create a custom material combination.
    - Assign Material Combination
      Shows step-by-step how to set material combinations and assign them to pipes.
    - Details on Pipes and Insulations
      Information about the Pipes and insulations dialog in the pipe network calculations heating, cooling and potable water.
    - About Tables of Insulation
      Explains the concept of Insulation tables in Pipe and Air Duct Network Calculations.
    - Valves
      Explains the concept of valves in pipe network calculation for heating, cooling and potable water.
      - Overview of Valve Types in VDI 3805, sheet 2 and sheet 17
        An overview of the valve types of sheets 2 and 17 from VDI 3805 supported in LINEAR Analyse.
      - Selecting Valves for the Whole Project (Global Preselection)
        Shows step-by-step how to add valve data to the Global preselection tab of the Valves dialog, which will be used in the calculation for all valves of this type.
      - Assigning Valves to Individual Components (Local Assignment)
        Shows step-by-step how to create an additional selection of armatures in the Valves dialog, which you can assign to individual components.
      - Assigning General Valves Manufacturer data (with Nominal Diameter Distinction)
        Step-by-step instruction on how to assign manufacturer valves to general valves. Two different models are used for differing nominal diameters.
      - Importing VDI Valve Data Sets
        Shows step-by-step how to import manufacturer valve data sets of VDI or TGA format.
      - Details on Valves
        Information about the dialog Valve in the pipe network calculation heating and potable water.
      - Details on Select Valve Series
        Information about the Select valve series dialog.
      - Details on Classification (VDI import)
        Information on the Classification dialog for VDI import in the heating and potable water pipe network calculations.
    - Pumps
      Explains the concept of Pumps in pipe network calculation for Heating, Cooling and Potable water.
    - About Additional Material
      Explains the concept of additional material in the pipe network calculation for heating and potable water.
  - Dwelling and Decentralized Fresh Water Stations
    Explains the concept of the dialog Dwelling and decentralized fresh water stations in pipe network calculation for heating.
  - Positioning
    Explains the concept of positioning for section parts in the heating and drinking water pipe network calculations.
  - Medium
    Explains the concept Medium in Pipe and Air Duct Network Calculations for heating, cooling and ventilation.
  - Components
    Explains the concept of the Components section in Pipe and Air Duct Network Calculations.
- About Pipe Network Calculation Potable Water
  Explains the concept of pipe network calculation in potable water.
- About Pipe Network Calculation for Waste Water
  Explains the concept of pipe network calculation in waste water.
- About Pipe Network Calculation for Gas
  Explains the concept of pipe network calculation gas.
- About the Air Duct Network Calculation
  Explains the concept of air duct network calculation.
- About Delete Warnings
  Explains the concept of Deleting warnings in Pipe and Air Duct Network Calculations.
Construction Design
Get information about the workflow Construction design in connection with pipe and duct networks.
Labeling
Learn how to label section parts and components in the model.
Output
Get information about material compilation in LINEAR Building. You will also learn how to print or export calculation results and material lists in your CAD program.
Troubleshooting
Get information about possible sources of errors when working with LINEAR Solutions.

Valves

Explains the concept of valves in pipe network calculation for heating, cooling and potable water.

You select the valves to be used for pipe network calculation in the dialog Valve preselection. Data from different manufacturers are available for this purpose. Assignment of valve data is done via global preselection or by explicitly assigning valve data to individual components in the model.

Valves that have been selected in global preselection are saved in your project along with their technical data and remain in your project until being removed from preselection. Once a valve is removed from preselection it can no longer be used for calculation.

Install an appropriate data set to use the data from manufacturer systems. Manufacturer datasets can be downloaded via the LINEAR Installation Center.

If in Valve preselection you have selected more than one valve for the same valve type, the most suitable valve will be calculated and automatically inserted. In Local assignment you may select and assign valves that deviate from those selected in Global preselection.

Valves in Pipe Network Calculation Heating

The calculation of the pipe network includes a previous hydraulic balancing of the network. After dimensioning the pipes, valves are throttled to achieve identical pressure loss for all flow paths when viewed from the pump.

For cases where thermostatic valves, radiator lockshield valves or one-pipe radiator valves are not constructed separately, they will automatically be assigned as integrated components for radiators. All other valve types like regulating valves, differential pressure closed-loop controller, flow regulators, three-way valves and fixed resistors are automatically assigned to their corresponding components.

Valves in Pipe Network Calculation Potable Water

Potable water- and circulating pipe systems require hydraulic and thermal balancing to ensure sufficient flow and necessary water temperatures in every pipe of all pipe runs. Regulating valves are used to that end.

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Valves

Valves in Pipe Network Calculation Heating

Valves in Pipe Network Calculation Potable Water