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PERFORMANCE DATA TECHNICAL DOCUMENTATION VLV55|VLV65 Volumetric flow controller • Operating temperature: 10 - 50 °C • Differential pressure range: 20 - 750 Pa • Volumetric flow measurement range from 13 m3/h to 2195 m3/h • Minimum pressure difference 5 to 150 Pa VLV55 • for air velocity 0.5 to 5 m/s VLV65 • for air velocity 1 to 8 m/s • VDI 6022, Sheet 1: Hygienic requirements of ventilation and air-conditioning systems • DIN EN 13779 (2007): Ventilation of non-residential buildings • Leakage air: EN 1751 (2014-06) • DIN EN 1751, class 4: Leakage with damper blade closed • DIN EN 1751, class C: Housing leakage • after moulded parts no inflow area required • optimised for air velocities from 0.5 m/s • high control accuracy at low pressures and air velocities • position-independent installation • resistant to pollution due to the design SCHAKO | Ferdinand Schad KG SteigstraGe 25-27 D-78600 Kolbingen

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Table of Contents Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Overview of product versions | Function OVERVIEW OF PRODUCT VERSIONS VLV55|VLV65 with rubber lip seal A volumetric flow controller is used for pressure-independent volumetric flow regulation in ventilation and air-conditioning systems. It serves to keep the volumetric flow either constant within specified limits (CAV) or to control it variably (VAV). The housing, measuring nozzle and the controller with pressure sensor form a closed control loop with feedback, allowing demand-dependent, energy-saving air-conditioning of the...

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Areas of application | Processing AREAS OF APPLICATION • for supply and return air systems with low pressures and low air velocity • for constant CAV or variable VAV installations • for positive control Vmin, Vmid, Vmax, "OPEN" or "CLOSED" • For volumetric flow and linear pressure control • at ambient temperatures 0° to +50°C, requirement: measuring air 0...+50°C/5...95% rH, non-condensing • for regulating the air velocity in the duct in the range of 0.5...8 m/s • VLV55 for air velocity 0.5 - 5 m/s • VLV65 for air velocity 1 -...

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Available sizes | Useable volumetric flow ranges NW 100 - NW 315 sealing airtight to DIN-EN 1751, class 4. ATTENTION: Important for parameterisation of the VLV • The table corresponds to the complete measuring range. • When the air volume drops below Vmin, the correct functioning of the volumetric flow controller is no longer guaranteed. • If only Vmax is specified in the order, a variable volumetric flow controller will be delivered. The Vmin value will be set to the value specified in the catalogue. • If only one air volume...

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ICHAKfft VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Accessories | Dimensions of accessories • on both sides, duct flange type AF. Flat flange (-FF1) • on both sides, according to DIN 24154/5. Rubber lip seal (-GD1) • on both sides, special rubber. Flat flange (-FF1), on both sides Duct silencer (-RS) Rubber lip seal (-GD1) • Rigid model • Outer jacket and perforated sheet made of galvanised sheet steel • mineral wool filling DIMENSIONS OF ACCESSORIES METU flange (-MF1) Tension ring (provided by the customer) VLV-- Metu flange (-MF1) Counter flange (provided by the cus...

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Static minimum pressure difference | Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV55 - flow generated noise | — = value below the static minimum pressure difference Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV55 - flow generated noise - relative sound spectrum | Differential pressure range: 0 - 300 Pa Air velocity: 0.5 - 5.0 m/s Kl= correction value; relative sound power level, relative to LWA Klw = Lwa + {Kl} Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV55 - radiated noise | Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV55 - radiated noise - relative sound spectrum | Differential pressure range: 0 - 300 Pa Air velocity: 0.5 - 5.0 m/s Kl= correction value; relative sound power level, relative to LWA Klw = Lwa + {Kl} Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV65 - flow generated noise | — = value below the static minimum pressure difference Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV65 - flow generated noise - relative sound spectrum | Differential pressure range: 0 - 300 Pa Air velocity: 0.5 - 5.0 m/s Kl= correction value; relative sound power level, relative to LWA Klw = lwa + {Kl} Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV65 - Radiated noise | Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION VLV65 - Radiated noise - relative sound spectrum | Differential pressure range: 0-300 Pa Air velocity: 0.5 - 5.0 m/s Kl= correction value; relative sound power level, relative to LWA Klw = lwa + {Kl} Construction subject to change No return possible

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Duct silencer (-RS) - insertion loss | Construction subject to change No return possible Version: 2017-04-24 | Page 16

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VLV55|VLV65 - Volumetric flow controller TECHNICAL DOCUMENTATION Controller selection | Technical data of control components Construction subject to change No return possible Version: 2017-04-24 | Page 17

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