• Model:SQT125-1ECL

Elta Quietflow Twin SQT125-1ECL

£ 1,656.27 (excl. VAT)

£ 1,987.52 (inc. VAT)

Elta Quietflow Twin SQT125-1ECL

Each unit is acoustically lined internally with Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining minimising breakout noise levels.
New Multi-mount brackets allow easy mounting in a range of orientations.
Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer.
High efficiency low tonal noise backward curved centrifugal impellers are directly driven by EC external rotor motors, provide low specific fan powers and stepless speed control without tonal noise generation.
Units can be weatherproofed in the factory to allow external installation.
EC motors providing precise speed control via potentiometer, BMS or Elta Fans DCV control. Reduced fan speeds can provide significant cost-savings through lower energy consumption in both mechanical energy of motors and also on the conditioning of replacement air.
Twin Fan Operation
Allowing control for auto changeover and duty share.
Each SQT has a 12 month warranty.
The robust 1.2mm galvanised mild steel sheet casing, is treated internally with a Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining with a fire resistant polymeric coating. The wrap around folded casing is specially manufactured using integral motormounting plates to provide additional rigidity for the casings. Each casing provides spigots to suit standard circular ducting. A removable lid is provided as a standard feature to facilitate ease of maintenance and cleaning.
The twin range of units have an EC external rotor motor fitted as standard. The motor contains sealed for life bearings. Thermal Class of motors to THCL 130 or 155 dependent on size. All motors are suitable for use in ambient air conditions up to +60 ℃. Electrical connection shall be via an IP55 terminal box mounted on the side for easy customer connection.
High efficiency low tonal noise backward curved centrifugal impeller, dynamically balanced to ISO 14694 Grade G6.3 and directly driven by the motor to provide a smooth airflow through the unit.
Units shall be supplied with integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer. Speed control shall be via external potentiometer or0-10V, Auto changeover in the event of fan fail or duty share of run and standby fan shall be via auto changeover panel which is an optional extra.
Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001. All Quietflow SQT units are to be tested to ISO 5801 (airside performance) and BS 848 Part 2 (sound performance).
PDF Files


Data sheet

2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 3.0 Transformer Speed Control (400v)2 x Elta Variable Speed Drive IP66 - 7.5KW2 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter2 x Elta Variable Speed Drive IP66 - 0.75KW2 x FU 22 25 Frequency Inverter3 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x ELTA - Three Phase Transformer 10amps1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x NKS-D swirl diffuser v-300 x 300mm2 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3153 x Electronic extractor fan speed controller - FSC 1.51 x Round ceiling diffuser 400mm3 x EC6H - Reversible Group Fan Electronic Controller1 x Curved Blade Grille 600x600 (2way blow)1 x Elta 2 Amp Electronic single phase speed controller.1 x Circular Ceiling Diffuser - TST 1601 x JSR 200 Painted RAL50181 x Elta 3 Amp Electronic single phase speed controller with TK1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Elta 3 Amp Electronic single phase speed controller.1 x Balance S Diffuser - NO RING - 100mm5 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x EFSC-3N- Single Phase Speed Control3 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 12amps3 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 4amps3 x COM-33 x AIRVENT speed control - AIR4019612 x Round ceiling diffuser 300mm3 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x PCA Diffuser - PCA-2501 x EFSC-6N- Single Phase Speed Control2 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps3 x Remote Timer Control - 13512 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA42 x Helios ZNE Electronic Fan Overrun Timer4 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK3 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Remote controller FLEX - for VEKO INT2 x Helios TSW 7.5 Amp Transformer speed controller3 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x Transformer 5 Speed Controller - ATC1-12TK1 x RTRD - Three Phase Speed Controller - 2 Amp2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Circular Ceiling Diffuser - TST 2002 x Isolator Switch - ISOSW2 x BEAS-control module2 x Envirovent G4 Filter - SL-G4/F71 x Vent Axia T-Series Controller3 x MWS 1.5 – Transformer Controller With Motor Protection2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Speed Controller - REB52 x Transformer (silent) speed controller - RE 3.0 Amp2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Multiflow SMB550/4-1AC2 x Speed Controller - REB1-N1 x TTC-2000 Three phase electric heater controller3 x REB-CVF 0-10v Controller2 x ACOAS/ AC/EC Auto Changeover 8Amp3 x ACO8AC/EC AutoChangeover panel3 x MTP 10, 10K, Speed control2 x PIR Sensor - PIR24 x Speed Controller - REB11 x Elta ACO Panel 149-ACO14E2 x Quietflow SQS400-1ECL - Centrifugal Box Fan2 x PIR Sensor - PIR41 x CONTROL ECOWATT - Basic2 x Vent Axia Silent 100T (TIMER)2 x Transformer Speed Control - RTRE- 1.5Amp1 x EM30-24 Electro-Mechanical Control Panel2 x MTS10- extractor fan 3 step switch1 x ACO 149-ACO1/EDV2 x UB47- Universal Insulated Terminal1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit2 x Mini Diffuser - 100mm1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection2 x Systemair Save Connect 2.0 Internet Module4 x QPTW 250C Acoustic Twin Fan with Controller2 x FRQ5-10A Inverter Speed controller1 x EM30-24 Control Panel Commissioning Service2 x CBT-100N Centrifugal2 x Contactor Interface Station - CI91 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Silentub - STUB 1001 x Elta Wall Cowl SWC56/631 x LFBR 315 G4 - Helios Inline Filter Box - 315mm2 x CO2 Room Sensor - CO2-R1 x GRA-100 External Grill by S&P2 x VEKA INT 2000/15.0-L1 EKO2 x AXC TP - 100mm Plastic Centrifugal Inline Fan1 x Elta Wall Cowl SWC35/403 x Duct Termination with Mesh - 100mm1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/502 x CFI In-line 150 - Carbon Filter1 x Jet Cowl - 315mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x 100mm Round Connector with Damper1 x Elta SCP400/4-1AC - IP551 x CBM 7/7 147w 4P RE-VR1 x Quietflow Twin SQTDCV250-1ECL1 x Duct Termination with Mesh - 150mm1 x CBB-60N Centrifugal1 x Vent Axia Trickle & Boost Switch1 x RUCK MTP 20, 10K, Speed control1 x Elta HXP 800mm 6-Pole (Three Phase)1 x Universal Pipe Fixing Clip1 x CBP-9/7-RC1 x Quietflow SQS250-1ECL - Centrifugal Box Fan1 x SDD-U Anti Vibration Pads1 x Vent Axia T-Series Wall Model TX9WL1 x Duct Termination with Mesh - 200mm2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-43 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-2TK3 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-10TK1 x TDP-D Pressure Sensor with Display2 x Transformer 5 Speed Controller - ATC1-8TK2 x Helios TSW 3 Amp Transformer speed controller1 x RDS 11 Helios Transformer Controller With Motor Protection1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Helios TSW 1.5 Amp Transformer speed controller2 x CS2 Current Switch4 x Transformer speed controller - ATC1 - 1.5 Amps2 x Vent Axia ACM 125 inline mixed flow duct fan1 x TG-K Duct temperature sensor2 x MWS 3 – Transformer Controller With Motor Protection1 x Vent Axia ACM 100 inline mixed flow duct fan3 x Two Speed Switch - REGUL-21 x ERR 20/1 Centrifugal inline fan1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven3 x WS - Reversing Switch from Helios Fans2 x Helios HQW-630/4 - IP552 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Transformer Speed Control - RTRE- 12.0Amp3 x Helios HQW-200/4 - IP551 x CBS-60 Outlet Flange for CSB/CBT-601 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Isolator Switch - EFF-ISO2 x Helios HQW-200/2 - IP552 x Helios HQW-250/4 - IP552 x TG-K Duct temperature sensor1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x SAVE VSR 300 heat recovery unit2 x Helios HQW-315/4 - IP551 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Electrostatic Precipitator - 1H x 3W1 x CSB-60 Centrifugal fan1 x SPI-100 C Iris damper1 x DA9/9-NT1 x Helios RR-250-C Centrifugal inline fan1 x Duct Termination with Mesh - 710mm1 x Singleflow SSDL315-1EC2 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x VTR 500 STD Filter Kit1 x EBM-Papst D3G133-BF05-14 Double inlet1 x Elta - Room Sensor - Temp/Humid/C022 x Flakt Woods ME 1.6 speed controller 6.0amp - EA9011591 x CBA-100 Inlet Flange for CBT-1001 x Helios ESA-1 Surface mounted Speed Control 1amp1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x KBA- Inlet Mounting 2251 x CBT-130N Centrifugal ATEX II 3D ExtD 125*C2 x VTR 300 STD Filter Kit1 x Binks Bullows - Spray Booth Filter1 x DDMP 07/07 Mounting Flange1 x Flakt Woods ME 1.1 speed controller 1amp - EA9011571 x DDMP 12-12 3F 5700W M6M0 DG71 x KBA- Inlet Mounting 1801 x DPD 12PM Delivery Surcharge1 x DS-2/2 2-Speed Switch IP54 (Single Phase)1 x TUNE-R-200-3-M3 - Control Damper1 x Duct Termination with Mesh - 400mm1 x CBB-80N Centrifugal1 x CBS-100 Outlet Flange for CBT-1001 x Duct Termination with Mesh - 250mm1 x DDMP 10-08 FLANGE1 x DEF-CBM-RE-7 - Protection Guard1 x DDMP 12-09 1F 1800W M6A4 DA81 x SPI-200 C Iris damper1 x CMT-2 120/50 - 0,09Kw - LG270 Single inlet centrifugal fan direct driven1 x Elta SPA500/4-1AC - IP541 x 125mm Round Connector with Damper1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x CBT-130N Centrifugal1 x CBM Low Pressure Centrifugal Fan - CBM 7/7 6 Pole 72watt CVR1 x DDMP 10-08 1F 1000W M6A2 DA51 x Spiral Ducting 1 meter - 200mm1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x Transformer Speed Control - RTRE- 5.0Amp1 x TUNE-R-250-3-M0 - Control Damper (NO ACTUATOR)1 x CBT-80N Centrifugal1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF450/4-1AC - Single Phase1 x Flat Roof Terminal -OFT 5 - Asphalt1 x TecFire Intumescent Damper - Rectangular 400x400mm2 x CPTA-E Flush mounted PIR sensor with timer1 x Temperature Fan Speed Controller - ATCP4-WMS3 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x TG-K3/NTC10-01 - Duct temperature sensor1 x Speed Controller - REB101 x Speed Controller - REB81 x Skyflow SSR Horizontal Roof Cowl SSR80B1 x Speed Controller - REB2.5-N1 x DDMP 09/09 Mounting Flange1 x Transformer (silent) speed controller - RE 5.0 Amp1 x ENV 100 12v transformer SELV1 x Speed controller with Reverse - REB-1R1 x MWS 5 – Transformer Controller With Motor Protection Unit1 x Vent Axia SC5001 - Speed controller1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x TD EVO-100 PF ECOWATT - Environmentally Friendly Energy Efficient Inline Fan1 x ERR 31/1 Centrifugal inline fan
BD7/7 centrifugal M4 0.13Kw
BD7/7 centrifugal M4 0.13Kw
£ 345.00 now £ 300.00
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...