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VLV

VLV

Product catalog summary

Performance Data
The VLV55 and VLV65 volumetric flow controllers operate within a temperature range of 10 to 50 °C and a differential pressure range of 20 to 750 Pa. They measure volumetric flow from 13 m³/h to 2195 m³/h, with a minimum pressure difference of 5 to 150 Pa. The VLV55 is suitable for air velocities of 0.5 to 5 m/s, while the VLV65 is suitable for 1 to 8 m/s.

Special Features
The controllers do not require an inflow area after molded parts and are optimized for air velocities starting from 0.5 m/s. They offer high control accuracy at low pressures and velocities, are position-independent for installation, and are resistant to pollution.

Tests and Standards
The product complies with VDI 6022, DIN EN 13779, and EN 1751 standards, and meets RoHS, EMC, and low voltage directives.

Function
The controllers are used for pressure-independent regulation in ventilation and air-conditioning systems, maintaining constant or variable volumetric flow using a Venturi nozzle for accurate measurement.

Areas of Application
Suitable for supply and return air systems with low pressures and velocities, operating effectively at ambient temperatures from 0° to +50°C. Not suitable for air containing sticky or greasy particles.

Processing
The housing and damper blade are made of galvanized sheet steel, with EPDM seals ensuring airtight sealing. The measuring sensor uses an aluminum Venturi nozzle.

Available Sizes and Flow Ranges
Sizes range from NW 100 to NW 315, with specific flow rates detailed for both VLV55 and VLV65 models.

Accessories
Includes METU flange, flat flange, rubber lip seal, and duct silencer.

Static Minimum Pressure Difference
Details are provided to ensure proper function and calibration of the controllers.

Technical Specifications
Specifications include air velocity, differential pressure range, and flow rates for various sizes. Noise levels and correction values for sound spectrum are also provided.

Flow Generated and Radiated Noise
Noise levels (LWA) and correction values (KL) for different frequencies are listed, with tables showing sound levels in dB(A) for both models.

Duct Silencer Insertion Loss
Insertion loss data for duct silencers is provided for different packing thicknesses and frequencies.

Controller Selection
Compatible controllers include models from Belimo, Gruner, Sauter, Siemens, and Delta Controls, with operating modes specified.

Technical Data of Control Components
Details on measured value collection and control functions are provided, emphasizing the importance of maintaining minimum volumetric flow for proper function.

Overview
The document provides technical specifications and operational guidelines for the VLV55|VLV65 controllers, focusing on Belimo and Gruner compact controllers.

Specifications
Operating modes for Belimo compact controllers are outlined, including conditions for use in master/slave configurations.

Control Functions
Controllers support various functions, including Vmin and Vmax control for efficient room ventilation and energy management.

Circuit Diagrams
Includes diagrams for standard controllers and specific models, detailing wiring and signal requirements.

Technical Data
Technical data for controllers and motors includes supply voltage, power consumption, torque, and communication capabilities.

Operating Potentiometers
Instructions for setting operating potentiometers and adjusting settings using Vmax and Vmin potentiometers or a PC tool.

LED Indicators
Describes LED patterns for various functions and statuses, providing guidance for troubleshooting and maintenance.

Additional Information
Notes on construction and potential changes to components, emphasizing mutual locking of contacts and use of diagnostic tools.

Technical Specifications
The controllers are designed for use in supply and return air systems, capable of regulating constant or variable flows, with a sound power level of less than 35 dB(A).

Startup and Operation
Startup can be performed using a PC-Tool or ZTH EU setting device, with NFC-based configuration via the Belimo Assistant app.

Installation and Maintenance
Controllers can be installed with horizontal or vertical damper axles and are position-independent. Proper disposal is required per RoHS directives.

Order and Specification Details
Order code specifies type, size, material, and connection. The Venturi principle ensures high control accuracy and pollution resistance.

Accessories
Optional accessories include METU flanges, flat flanges, rubber lip seals, and duct silencers.

Catalog excerpts

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 single...

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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 - 8...

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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 is...

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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 AVAILABLE...

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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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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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