
Jetflow SJ
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- 8 standard sizes from 100mm to 355mm.
- Air volume flow rates of up to 0.66 m3/s.
- Static pressures of up to 800 Pa
- Suitable for ambient operating temperatures of up to +50° C
- Extensive stock range available.
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The Jetflow SJ range of all metal in-line centrifugal fans are designed to provide the ideal solution for high performance requirements in medium pressure systems. Ideally suited to a wide range of residential, commercial and industrial extract or supply applications, Jetflow boasts one of the most extensive range of fans on the market to meet system requirement.
FEATURES & BENEFITSLearn more about individual features and benefits of our products. |
SPECIFICATIONThe Jetflow range of centrifugal fans as manufactured by Elta Fans Ltd. |
TECHNICAL INFORMATIONThe technical information available to you from ELTA Fans is exhaustive - Choose from either sound, performance and electrical or dimensional data for each and every product |
ACCESSORIESElta supply a full range of accessories for each of their products. |
COMPAREChoose up to three products to compare their features side-by-side. |
DOWNLOADSGet the full brochure, wiring diagrams and operation and maintenance instructions. |
Features & Benefits
Material strength
Each unit has a heavy gauge steel housing, which is durable and long lasting with a corrosion resistant epoxy paint finish.
Motor protection
All SJ units have integral thermal overload protection which prevents the motor from overheating.
Range
An extensive range of fans from 100mm to 355mm diameter, which means much greater performance choices.
Ease of wiring
Connections are made via an IP54 rated terminal box which is fitted onto the outside of the unit casing.
Quality impellers
A high efficiency, single inlet, single width backward curved centrifugal impeller which is designed to be non overloading and self cleaning.
Ease of installation
All models are designed for direct connection to standard diameter flexible or rigid circular ducting with 25mm minimum length spigots for ease of connection.
Full accessory range
Speed controllers, fast clamps, electric heater batteries, silencers, panel filters, flexible connectors, non return dampers.

Specification
The Jetflow SJ range of in-line duct fans as manufactured by Elta Fans Ltd. 46 Third Avenue, Pensnett Trading Estate, Kingswinford, West Midlands, DY6 7US, UK. Tel: +44 (0) 1384 275800 - If you need more information - Contact us.
Casing
The all metal fan casing and guard provide a long lasting and robust construction.
The units have been constructed from mild steel and suitably treated to ensure full corrosion protection.
Fan casings shall have a high resistance epoxy paint finish.
Motors
Highly efficient, maintenance free external rotor motors shall be used, matched to the aerodynamic performance of the impeller.
These shall be protected to IP44 and suitable for speed control and working temperatures of up to +50℃.
Electrical connection shall be provided by an IP54 terminal box fitted onto the unit casing.
Impellers
Impellers shall be single inlet backward curved centrifugal type.
Quality Management
Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001: 2008.
Jetflow SJ units are to be tested to ISO 5801:1997 (airside performance) and BS 848 Part 2: 1985 (sound performance).

Technical Information
Dimensional Data

| Product Code | A | B | C | D | Weight kg |
|---|---|---|---|---|---|
| SJ100A | 241 | 98 | 25 | 210 | 3.0 |
| SJ100B | |||||
| SJ125A | 241 | 123 | 25 | 210 | 3.5 |
| SJ125B | |||||
| SJ150 | 241 | 148 | 25 | 210 | 3.5 |
| SJ160 | 241 | 148 | 25 | 210 | 3.5 |
| SJ200A | 335 | 198 | 25 | 230 | 4.5 |
| SJ200B | |||||
| SJ250A | 335 | 248 | 25 | 230 | 5.5 |
| SJ315 | 404 | 313 | 30 | 295 | 6.0 |
| SJ315B | 308 | 7.0 | |||
| SJ355A | 484 | 355 | 44 | 400 | 11.8 |
| SJ355B | 14.1 |
Performance & Electrical Data
| Product Code | Speed r/min | Airflow m3/s Static Pressure Pa. | Motor Electrical Data | Speed Control | dBA@3m | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 |
50 |
100 |
150 |
200 |
250 |
300 |
400 |
500 |
600 |
700 |
800 |
FLC Amps |
Input Watt |
Electronic |
|||
| SJ100A | 2000 | 0.056 | 0.051 | 0.045 | 0.040 | 0.033 | 0.024 | 09 | 0.260 | 68 | EL21 | 34 | |||||
| SJ100B | 2400 | 0.066 | 0.062 | 0.058 | 0.052 | 0.045 | 0.032 | 0.019 | 0.270 | 60 | EL21 | 42 | |||||
| SJ125A | 1700 | 0.072 | 0.063 | 0.054 | 0.044 | 0.034 | 0.022 | 08 | 0.270 | 62 | EL21 | 36 | |||||
| SJ125B | 2350 | 0.093 | 0.081 | 0.070 | 0.058 | 0.045 | 0.031 | 0.013 | 0.260 | 58 | EL21 | 43 | |||||
| SJ150 | 2350 | 0.102 | 0.089 | 0.075 | 0.060 | 0.043 | 0.023 | 0.280 | 65 | EL21 | 46 | ||||||
| SJ160 | 2350 | 0.112 | 0.097 | 0.082 | 0.063 | 0.050 | 0.032 | 0.280 | 63 | EL21 | 49 | ||||||
| SJ200A | 2400 | 0.170 | 0.150 | 0.116 | 0.090 | 0.072 | 0.055 | 0.320 | 73 | EL21 | 51 | ||||||
| SJ200B | 2430 | 0.245 | 0.234 | 0.215 | 0.192 | 0.170 | 0.146 | 0.125 | 0.108 | 0.035 | 0.660 | 154 | EL21 | 52 | |||
| SJ250A | 2450 | 0.284 | 0.264 | 0.240 | 0.216 | 0.195 | 0.176 | 0.155 | 0.136 | 0.110 | 0.820 | 180 | EL21 | 53 | |||
| SJ315 | 2420 | 0.350 | 0.332 | 0.265 | 0.210 | 0.166 | 0.138 | 0.120 | 0.095 | 0.018 | 0.860 | 192 | EL21 | 52 | |||
| SJ315B | 2630 | 0.510 | 0.465 | 0.423 | 0.382 | 0.342 | 0.304 | 0.268 | 0.198 | 0.132 | 0.070 | 1.300 | 297 | EL21 | 56 | ||
| SJ355A | 1330 | 0.609 | 0.585 | 0.554 | 0.508 | 0.429 | 0.316 | 0.192 | 1.120 | 248 | EL21 | 57 | |||||
| SJ355B | 2560 | 0.660 | 0.651 | 0.640 | 0.629 | 0.617 | 0.603 | 0.588 | 0.549 | 0.495 | 0.408 | 0.272 | 0.112 | 2.920 | 630 | EL41 | 7 |
Sound levels are average spherical free field values at 50% peak pressure for comparative purposes only.

Sound Data
| Product Code | 63Hz | 125Hz | 250Hz | 500Hz | 1kHz | 2kHz | 4kHz | 89kHz | dBA@3m |
|---|---|---|---|---|---|---|---|---|---|
| SJ100A | 57 | 49 | 57 | 50 | 50 | 47 | 43 | 38 | 34 |
| SJ100B | 60 | 55 | 65 | 58 | 58 | 55 | 49 | 45 | 42 |
| SJ125A | 53 | 51 | 55 | 54 | 53 | 49 | 42 | 36 | 36 |
| SJ125B | 58 | 57 | 61 | 60 | 60 | 56 | 50 | 45 | 43 |
| SJ150 | 62 | 57 | 66 | 63 | 63 | 59 | 53 | 46 | 46 |
| SJ160 | 63 | 60 | 70 | 65 | 66 | 61 | 55 | 59 | 49 |
| SJ200A | 64 | 67 | 72 | 67 | 67 | 64 | 59 | 57 | 51 |
| SJ200B | 65 | 70 | 71 | 70 | 68 | 65 | 63 | 59 | 52 |
| SJ250A | 63 | 63 | 67 | 69 | 69 | 65 | 65 | 64 | 53 |
| SJ315 | 61 | 60 | 63 | 70 | 68 | 65 | 63 | 66 | 52 |
| SJ315B | 65 | 64 | 67 | 74 | 72 | 69 | 67 | 70 | 56 |
| SJ355A | 78 | 80 | 79 | 76 | 73 | 69 | 64 | 50 | 57 |
| SJ355B | 88 | 93 | 98 | 95 | 94 | 89 | 83 | 79 | 77 |
Silencer Data
| Product Code | dBA@Attenuation | |||
|---|---|---|---|---|
300L |
600L |
900L |
1200L |
|
| SJ100A | -13 | -19 | -25 | -27 |
| SJ100B | -13 | -19 | -25 | -27 |
| SJ125A | -14 | -20 | -25 | -28 |
| SJ125B | -15 | -21 | -26 | -29 |
| SJ150 | -12 | -19 | -22 | -24 |
| SJ160 | -11 | -17 | -21 | -23 |
| SJ200A | 11 | -15 | -19 | -22 |
| SJ200B | -12 | -16 | -21 | -23 |
| SJ250A | -13 | -17 | -20 | -23 |
| SJ315 | -12 | -16 | -18 | -20 |
| SJ315B | -13 | -17 | -19 | -21 |
| SJ355A | -11 | -14 | -16 | -18 |
| SJ355B | -12 | -15 | -17 | -18 |
Wiring Data
SINGLE Phase - 220V-240V / 50Hz
| Product Code | Wiring Diagram no. |
|---|---|
| SJ100A | 152-505 |
| SJ100B | 152-505 |
| SJ125A | 152-505 |
| SJ125B | 152-505 |
| SJ150 | 152-505 |
| SJ160 | 152-505 |
| SJ200A | 152-505 |
| SJ200B | 152-505 |
| SJ250A | 152-505 |
| SJ315 | 152-505 |
| SJ315B | 152-505 |
| SJ355A | 152-505 |
| SJ355B | 152-505 |
Accessories
Non-Return Dampers (018)
Prevents reverse flow of air when fan not operating
Read more
Fast Clamps (018)
For quick connection of spigotted fans to circular duct or accessories
Read more
Silencers (068-JF)
Pre-galvanised sheet steel with perforated steel lining
Read more
Flexible Connectors (018)
Read more
Panel Filters (018)
Filter access with removable panel
Read more
Electric Heater Batteries
Safe and clean heating
Read more




