| Dieser Datensatz ist Bestandteil der ÖKOBAUDAT. |
Process information
| Key Data Set Information | |
| Location | DE |
| Reference year | 2015 |
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| Use advice for data set | Scope: This document refers to the manufacture, transport, installation, operation and disposal of volume flow controllers with optional accessories for ventilation and air-conditioning systems. The products are produced exclusively at the Weener plant in Germany where production data for 2012 was recorded. System boundary: The “cradle to grave” EPD system boundary has a modular design according to /EN 15804/. The LCA for the products under review considers Modules A, B, C and D: A1-A3 (Product stage): Raw material supply, transport to the manufacturer, production (incl. provision of energy and water, provision of ancillary materials, disposal of waste) A4-A5 (Construction process): Transport to construction site, installation in the building, recycling packaging waste B1-B5 (Use stage): Use of the installed product B6-B7 (Use stage – building operation): Use of electrical energy for the product C1-C4 (End-of-life stage): De-constructing the product, transport to waste processing, waste treatment, disposal D (Credits): Recycling potential |
| Technical purpose of product or process | Volume flow controller for controlling constant and variable volume flows in ventilation and air-conditioning systems and for shutting off the ventilation ducts. |
| Classification number | 8.2.01 |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | Electronic volume flow controllers VRE for constant and variable volume flows are maintenance-free, can be installed independent of position in circular ventilation ducts for supply air as well as exhaust air in ventilation and air-conditioning systems. They are factory-adjusted for the entire volume flow range. An innovative measurement procedure utilises the differential pressure and damper blade position for measuring and controlling the volume flow rate. At the same time, an efficiency signal is provided for energy-saving optimisation of the operating pressure in ventilation system. At all pressures, the innovative measurement principle enables high control precision of ±5% to ±15% from the set point volume flow in the volume flow ranges of approx. 1:10. The casing and the centrically-mounted damper blade are made of galvanised sheet steel with a stainless steel bearing axis in special bearing bushings while the drive casing is made of plastic. The operating modes "constant", "variable" and "4-point" are possible in addition to the overriding controls "open" and "closed". The "variable" operating mode is possible in operation modes 0-10V, 2-10V and 2-8V. Parallel operation and sequential circuit are possible. Constant mechanical VR volume flow controllers are maintenance-free mechanical controllers without auxiliary power supply for constant volume flows in ventilation and air-conditioning systems. They can be installed independent of position in ventilation ducts for supply air and exhaust air. The casing and control mechanism are made of galvanised sheet steel. The damper blade for volume flow regulation is centrically-mounted and guided into special bearing bushings via stainless steel bearing axes. The setting device features a rotary pointer, scale and locking mechanism. The volume flow set points can be actuator-driven adjusted or set manually within the volume flow ranges of Vmin to Vmax. The special control mechanism guarantees a high degree of control accuracy with deviations of only approx. ±5% to ±10%. Accordingly, in the case of variable pressures, the volume flow is kept constant throughout the entire pressure range. The VR is also available with actuator-driven adjustment for two volume flow set points or with continuous actuator-driven adjustment for any volume flow set points. More information is available in the /manufacturer’s documents/ and section 7 provides information on hygiene. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Data set valid until | 2020 |
| Technological representativeness | |
| Technology description including background system | Production is at one location in the Weener plant. The necessary raw and semi-finished parts, ancillary materials and operation materials are delivered by suppliers and are integrated in production. Semi-finished parts are manufactured in a prefabrication using standard manufacturing methods. Metal parts are punched and edged to shape. Blanks are optimised accordingly in order to avoid waste. Any waste incurred is collected and where possible recycled by the corresponding companies, or disposed of and incinerated as domestic waste. Lubricants are largely collected, treated and re-used in production. Dust and fumes are extracted and collected on site. Prefabricated parts are assembled along with bought-in parts to volume flow controllers, inspected within the framework of quality assurance to /DIN EN ISO 9001/, packed and shipped. Each volume flow controller is factory-adjusted to ensure a high and consistent degree of control accuracy. The plant is subject to an energy management system. Technical data: The requirements in accordance with the harmonised regulations governing CE marking relating to electromagnetic compatibility (EMC) in line with EU Guideline /2004/108/EC/, the performance rating according to /DIN EN 12589/ and the associated requirements according to /DIN EN ISO 5135/, /DIN EN ISO 3741/, /DIN EN ISO 5167-1/ and /DIN EN 1751/ are fulfilled. Declared unit: This declaration refers to the manufacture of one volume flow controller VRE including drive, electric control unit and the optional acoustic insulation according to /IBU PCR, Part B/. Other volume flow controllers, type VRE and VR, whose variants and varying dimensions deviate from the reference products analysed here can be calculated using a weight chart provided by Wildeboer Bauteile GmbH and scaling the results. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators