Website:
SCHAKO KG
Group: SCHAKO Group
Catalog excerpts
SCHAKOVolumetric flow controllerVRAQ Leakage air flow with control damper closed according to DIN EN 1751, up to class 4 Ferdinand Schad KG SteigstraBe 25-27 D-78600 Kolbingen Telephone +49 (0) 74 63 - 980 - 0 Fax +49 (0) 74 63 - 980 - 200 info@schako.de schako.com
Open the catalog to page 1
08/61 - 2 Construction subject to change. Version: 13.03.2020 No return possible!
Open the catalog to page 2
Volumetric flow controller VRAQ Description A volumetric flow controller is used for pressure-independent volumetric flow regulation in ventilation and air-conditioning systems. It is used to keep the volumetric flow constant (CAV) within specified limits or to control it variably (VAV) as a function of a command variable, for example a room temperature controller, DDC or bus system. For constant volumetric flows, the operating stages CLOSED/Vmin/Vmid/Vmax/OPEN are available in stage operation, controlled via relays or switches. The housing, measuring sensor, control flap, PI controller...
Open the catalog to page 3
Volumetric flow controller VRAQ All volumetric flow controllers can be assembled with horizontal or vertical damper axis.
Open the catalog to page 4
Volumetric flow controller VRAQ Construction Housing - Galvanised sheet steel (-SV) - Galvanised sheet steel with DD coating inside (-DD) (only available for VRAQ-HKP and VRAQ-HKU) Damper leaf seal - made of PUR, silicone-free - for airtight sealing design to DIN EN 1751 Damper bearing - Brass (VRAQ H=100) - Plastic (VRAQ-HKP and VRAQ-JK-LP) - Sintered (VRAQ-HKU and VRAQ-JK-LU) Blades - Opposed, made of galvanised steel sheet, not air-tight (VRAQ-HKP and VRAQ-HKU) - opposed, made of extruded aluminium profiles, air-tight sealing to DIN 1751. (VRAQ-JK-LP and VRAQ-JK-LU) Measuring cross -...
Open the catalog to page 5
Volumetric flow controller VRAQ Models and dimensions DimensionsLouvre profileVRAQ-HKP / VRAQ-HKU H = 100-180 / W = 140-565 with electric controller VRAQ-...-DS0, without acoustic cladding VRAQ-JK-LP / VRAQ-JK-LU 40 mm thick sound-absorbing material is pressed to 35 mm, with sheet metal casing H = 100-180 / W = 140-565 with pneumatic controller not available Available sizes x = available -- = not available ca. = approx. All combined lengths and heights available. The VRAQ is only delivered in right-hand design. If the left-hand design, with the controller and motor on the left, is required,...
Open the catalog to page 6
with pneumatic controller VRAQ-...-DS0, without acoustic cladding Volumetric flow controller VRAQ H = 201-1003 / W = 201-1003 with electric controller VRAQ-...-DS0, without acoustic cladding VRAQ-...-DS4, with acoustic cladding 40mm VRAQ-...-DS4, with acoustic cladding 40mm 40 mm thick sound-absorbing material is pressed to 35 mm, with sheet metal casing 40 mm thick sound-absorbing material is pressed to 35 mm, with sheet metal casing Available sizes VRAQ-HKU-... / VRAQ-HKP-... x = available -- = not available All combined lengths and heights available. S* = Projection length with a damper...
Open the catalog to page 7
Volumetric flow controller VRAQStandard controller selection with electric controller (standard): Construction subject to change.
Open the catalog to page 8
Volumetric flow controller VRAQ Damper blade leakage VRAQ, classification according to DIN EN 1751 Construction subject to change.
Open the catalog to page 9
Volumetric flow controller VRAQAccessories - dimensions Mineral wool silencer (-ZSQ) with baffles MWK-OB Available sizes and insertion loss for mineral wool silencer (-ZSQ) H“ (mm) 100 140 160 180 201 225 252 318 357 400 449 503 565 634 711 797 894 1003 The possible width and height combinations are listed on page 7. Please note! The parameters KA (number of baffles), K (baffle strength ) and Mineral wool silencer ZSQ must be ordered separately! S (gap width ) depend on the width B. Construction subject to change.
Open the catalog to page 10
Volumetric flow controller VRAQ Technical data Information for parameterisation Attention, the following specifications are important for the programming of the volumetric flow controllers: - this table specifies the complete measuring range of the standard controller (volumetric flow range). - If the customer absolutely wants a calibration curve different from 12 m/s, it must be specified! - When the air volume drops below the Vmin shown in the chart, the correct functioning of the volumetric flow controller is no longer guaranteed! - If only one air volume is specified in the order (as...
Open the catalog to page 11
with electric controller (standard) H (mm) - MIN values refer to air velocity of 1 m/s - MAX values refer to air velocity of 12 m/s H=318 for VRAQ-JK-LP / VRAQ-JK-LU not available. -- = not available Construction subject to change.
Open the catalog to page 12
Volumetric flow controller VRAQ Acoustic data VRAQ H= 100-180 / W= 140-565 A-weighted sound power level LWA [dB(A)]Flow generated noiseH (mm) 100 140 160 vk (m/s) 12 12 12 140 49 Lwa [dB(A Radiated noise VRAQ-...-DS0 (without acoustic cladding) 08/61 - 13 Construction subject to change.
Open the catalog to page 13
Volumetric flow controller VRAQRadiated noise VRAQ-...-DS4 (with acoustic cladding)08/61 - 14 Version: 13.03.2020 Construction subject to change.
Open the catalog to page 14
Volumetric flow controller VRAQAcoustic data VRAQ H= 201-1003 / W= 201-1003 Inflow area A (m2) Construction subject to change.
Open the catalog to page 15
Volumetric flow controller VRAQ Technical data of the control components Measured value collection and control function The measured value collection is carried out via a flow-favouring double measuring cross. The measuring openings are distributed over the measuring cross according to the median line method. The pressure differential formed on the measuring cross is determined by means of a dynamic or static measuring sensor. The measured values are averaged to give an average value which represents a measuring quantity for the volumetric flow. The controller compares the actual value...
Open the catalog to page 16
Volumetric flow controller VRAQ MP bus activation with integrated switch Circuit diagrams Circuit diagram electric controller (standard) Compact controller Belimo make: LMV-D3-MP / NMV-D3-MP / SMV-D3-MP VAV with analogue command signal VAV with lock (CLOSED) Mode 2-10 V DC Cable designations Lock mode (CLOSED) In the 2...10 V mode, the following function can be carried out with a 0...10 V signal: Contact closed, function active Contact closed, function active, in mode 2 ...10 V only Contact open * not available for DC 24 V supply Construction subject to change.
Open the catalog to page 17All SCHAKO KG catalogs and technical brochures
-
AUDIX2 Pages
-
DISA4 Pages
-
UC-OH²2 Pages
-
IGA2 Pages
-
CDD2 Pages
-
FBS18 Pages
-
MINOPAB6 Pages
-
PIL23 Pages
-
MWS / MWK23 Pages
-
ERK-SO43 Pages
-
BKSYS18 Pages
-
MINODSA6 Pages
-
DKA6 Pages
-
LAQ11 Pages
-
VMPR/VMPQ29 Pages
-
BKA-EN79 Pages
-
CPL15 Pages
-
AUDIX®25 Pages
-
VREX26 Pages
-
VQEX17 Pages
-
VPEX18 Pages
-
SVA-FS11 Pages
-
NRWG22 Pages
-
COMBIDSC26 Pages
-
DSCXL17 Pages
-
DSCU18 Pages
-
DSCPL16 Pages
-
DSCP15 Pages
-
DSC37 Pages
-
DO10 Pages
-
UEKU6 Pages
-
UEK6 Pages
-
SS-K6 Pages
-
DQJP9 Pages
-
VOLKOM6 Pages
-
DQJ38 Pages
-
ALPETY16 Pages
-
CTT23 Pages
-
STV8 Pages
-
KWB19 Pages
-
GREENKIT20 Pages
-
FKU31 Pages
-
FKF29 Pages
-
SGA5 Pages
-
DBB27 Pages
-
TVO8 Pages
-
AL23 Pages
-
SVA-FF15 Pages
-
RF7 Pages
-
NBS34 Pages
-
MKAR_MKAQ13 Pages
-
KGF11 Pages
-
KF4 Pages
-
JK16 Pages
-
HK16 Pages
-
FLARE13 Pages
-
FLAQ11 Pages
-
FKW28 Pages
-
FG14 Pages
-
ERK-MB38 Pages
-
DISA-H34 Pages
-
DISA-B32 Pages
-
DISA-60141 Pages
-
DISA-36032 Pages
-
DISA-30051 Pages
-
CNVA32 Pages
-
CNV29 Pages
-
BSK-RPR60 Pages
-
BKP-EN40 Pages
-
BKA-UE35 Pages
-
BAK-25017 Pages
-
BAK-24016 Pages
-
Aquaris-Silent38 Pages
-
Aquaris_KWB20 Pages
-
DISA-W43 Pages
-
PILB/PILBR33 Pages
-
DAV19 Pages
-
4DE18 Pages
-
4DF13 Pages
-
DQC16 Pages
-
DQDL16 Pages
-
IDA21 Pages
-
IKA23 Pages
-
ZMD17 Pages
-
DQF15 Pages
-
DQJF12 Pages
-
DQJA/DQJR10 Pages
-
DQJSL17 Pages
-
DQJSLC17 Pages
-
DHV18 Pages
-
DSARR7 Pages
-
QA30 Pages
-
PUSH23 Pages
-
WQA12 Pages
-
DSX-XXL23 Pages
-
AUDIX®-ÜSG13 Pages
-
SIA7 Pages
-
SAR/SAQ/SARP13 Pages
-
WDA32 Pages
-
KGRR17 Pages
-
DBBRR11 Pages
-
WGARR7 Pages
-
WGA29 Pages
-
DKAPPs6 Pages
-
EBE/EBP52 Pages
-
VRAPPs20 Pages
-
VRAR52 Pages
-
MAK15 Pages
-
DISA-Family4 Pages
-
RMS11 Pages
-
EasyBus24 Pages
-
TSR5 Pages
-
RS-F7 Pages
-
RS15 Pages
-
VLV31 Pages
-
VARS26 Pages
-
VAQS19 Pages
-
VAS26 Pages
-
PIANO27 Pages
-
MBM10 Pages
-
MBE/MBP27 Pages
-
DKG6 Pages
-
ALAS-P5 Pages
-
ALAS-F 1256 Pages
-
ALAS10 Pages
-
ALA-SO4 Pages
-
ALA-R4 Pages
-
ALA4 Pages
-
LL7 Pages
-
RR-Complete41 Pages
-
DBBR6 Pages
-
PA32 Pages
-
LK12 Pages
-
IB-R15 Pages
-
IB-Q21 Pages
-
KG19 Pages
-
BSG19 Pages
-
DSX-XXL-W25 Pages
-
AUDIX®-AW20 Pages
-
DSX25 Pages
-
MINODSX6 Pages
-
MINODSA6 Pages
-
DSA15 Pages
-
COMBIPIL11 Pages
-
COMBIDQJ11 Pages
-
MINOPAB6 Pages
-
BDA11 Pages
-
SPB10 Pages
-
CULTRA-Studioline24 Pages
-
DISA-H34 Pages
-
DISA-60141 Pages
-
DISA-36032 Pages
-
DISA-30051 Pages
-
DISA-B32 Pages
-
AQUARIS SILENT38 Pages
-
NBS24 Pages
-
CNV29 Pages
-
CNVA32 Pages
-
JK-LP/JK-LU15 Pages
-
HKP / HKU16 Pages
-
FKW16 Pages
-
FLARE13 Pages
-
RF7 Pages
-
KGF9 Pages
-
SVA-FF8 Pages
-
BKA-Ü35 Pages
-
BSK-RPR60 Pages
-
BKP-EN40 Pages
-
BAK-2406 Pages
-
BAK-25014 Pages
-
KF4 Pages