DID YOU
KNOW ?
Fan doors made of HDPE = NO hydraulics!
Poly works on air pressure, unlike heavy steel fan doors that need hydraulics to open/close.
MINE VENTILATION DUCTING
PolyDuct Fittings
Polyline Industries have developed and manufactured an advanced range of moulded polyethylene products manufactured from linear Medium-Density Polyethylene (MDPE), a lighter material with better impact resistance than High-Density Polyethylene (HDPE).
STANDARD features of HDPE
- Non-corrosive
- Flexible
- Inbuilt noise absorption
- Durable & impact resistant
- Lightweight (compared to steel)
- Low maintenance
- Low friction coefficient (0.02)
ADVANCED features of the moulded MDPE products
A more robust moulded cylinder which is:
- Seamless - products therefore have less welds
- Inherently round - Rather than fabricated & inherently flat
- Double Rings - Ensures vent bags will not blow off that even under the highest pressure
- UV Stable for outdoor storage
- Fire Retardants & Anti-Static additives available
- Compatible Joining System
View Polyline Industries Range:
Cylinder / Barrel
Stock | Diameter | Length | Weight | Wall |
| F001 | 1065 | 2000 | 42 | 6mm +/- 1 |
| F002 | 1200 | 2300 | 65 | 7mm +/- 1 |
| F003 | 1400 | 2500 | 113 | 8mm +/- 1 |
| * Wall thickness can be increased for products used for intake sections | ||||
T-Piece
Stock | Diameter | Dimensions | Weight |
F004 | 1065 | 2000 X 1500 | 55 |
F005 | 1200 | 2300 X 1750 | 85 |
F006 | 1400 | 2500 X 1950 | 150 |
Y-Piece
Stock | Diameter | Dimensions | Weight |
| F007 | 1065 | 1250 X 1550 | 55 |
| F008 | 1200 | 1420 X 1770 | 85 |
| F009 | 1400 | 1650 X 1900 | 150 |
90° Bend - 5 Section
Stock | Diameter | Dimensions | Weight |
| F010 | 1065 | 1600 x 1600 | 42 |
| F011 | 1200 | 1800 x 1800 | 65 |
| F012 | 1400 | 2100 x 2100 | 113 |
90° Bend - 3 Section
Stock | Diameter | Dimensions | Weight |
| F013 | 1065 | 1600 x 1600 | 42 |
| F014 | 1200 | 1800 x 1800 | 65 |
| F015 | 1400 | 2100 x 2100 | 113 |
60° Bend - 3 Section
Stock | Diameter | Dimensions | Weight |
| F016 | 1065 | 1400 x 1335 | 42 |
| F017 | 1200 | 1550 x 1500 | 65 |
| F018 | 1400 | 1820 x 113 | 113 |
45° Bend - 3 Section
Stock | Diameter | Dimensions | Weight |
| F019 | 1065 | 800 x 800 | 25 |
| F020 | 1200 | 900 x 900 | 40 |
| F021 | 1400 | 1050 x 1050 | 45 |
45° Branch
Stock | Diameter | Dimensions | Weight |
| F022 | 1065 | 2000 x 2050 | 70 |
| F023 | 1200 | 2300 x 2230 | 110 |
| F024 | 1400 | 2500 x 2570 | 200 |
60° Branch
Stock | Diameter | Dimensions | Weight |
| F025 | 1065 | 2000 x 1800 | 60 |
| F026 | 1200 | 2300 x 2030 | 90 |
| F027 | 1400 | 2500 x 2340 | 160 |
4 Way Section
Stock | Diameter | Dimensions | Weight |
| F028 | 1065 | 1600 x 1600 | 42 |
| F029 | 1200 | 1800 x 1800 | 65 |
| F030 | 1400 | 2100 x 2100 | 113 |
Directional Valves
Stock | Diameter | Dimensions | Weight |
| F031 | 1065 | +150 to width | + 15 |
| F032 | 1200 | +150 to width | + 20 |
| F033 | 1400 | +150 to width | + 25 |
On request, a steel sleeved valve(s) can be added
to products to control the directional flow of air.
Flanged End
Stock | Diameter | Dimensions | Weight |
| F034 | 1065 | +150 to width | + 5 |
| F035 | 1200 | +150 to width | + 6 |
| F036 | 1400 | +150 to width | + 7 |
Oblique Section
A ‘slim-line’ range of Polyduct that allows maximum air flow through drives with limited headroom.
Vent Bag Joiner
Vent Bag Joiners can be manufactured to any length.
Flange Adaptor
Flange Adaptors can be manufactured to any length.
Hanging Fins
Hanging Fins are placed to ensure products are multi-directional.
Storage
Store all sections on ends to maintain shape when not in use.
This product is UV stable for outdoor storage where necessary.
Joining System
Custom Reducers / Adaptors
Ratchet Tie Down Straps
Polyline have developed a unique sealed rubber joining system which is cost effective and very easy to use. It also allows the flexibility to create minor bends.
Stock | Diameter |
F040 | 1065 |
F041 | 1200 |
F042 | 1400 |
Polyline Industries have the capability to produce One-Offs, Reducers and Adaptors to suit any requirement.
Polyline supply Ratchet Tie Down Straps to enable vent bags to be joined to the double ring end of the PolyDuct Fitting.
Stock Code | Dimensions |
F043 | 50mm x 7.5m |
F044 | 25mm x 4.5m |
Fan Silencers & Accessories
FEATURES of Polyline Fan Silencers
- Provides ready inbuilt noise absorption
- By using high tech sound foam and sound barrier, we are able to maintain an overall width of < 50mm, compared to conventional Rock Wall type (overall > 120mm). This means that the silencer O.D. does not exceed the fan flange.
- Silencers can be bolted end to end when mounting a fan in a restricted area such as a vent access wall
- Available in high visibility yellow
- High-Density Polyethylene (HDPE) Sheeting is used for the inner and outer casings with the inner cylinder strategically punched out to assist the performance of the noise barrier.
- The casing end flanges are constructed from 20mm HDPE and formed to fit any fan on request, then bolted together sandwiching the existing steel flange on the fan.
- Silencers are bolted through the existing P.C.D's on the steel flange to the flange on the end of the silencer for added support.
- The length of all silencers are generally built to 1.5 x the diameter of the fan to maximise the level of noise reduction. However, shorter versions are available for constricted areas.
Available with detachable polyethylene bell or bag cone ends.
ADVANTAGES of Polyline's Fan Silencers
- Non-Corrosive - Excellent in damp and salty environments, a superior to steel silencers
- Maintenance Free - By using 'Closed Cell' foam and protective coating, we are able to produce a silencer which is impervious to moisture and dust, resulting in no maintenance.
- Durable & Impact Resistant - This product can take severe impact and return to its original shape
- Extremely Lightweight - Enables installation & removal an easier task to perform, especially in difficult locations
- Size Efficient - The overall diameter of the fan assembly is not increased by the silencer, preventing catch points in environments such as Underground Mining
Fan Silencers
Stock | Silencer | Length | Weight |
G001 | VH713 | 1m | - |
G002 | 700-762 | 1m | - |
G003 | HF 804 | 1.2m | - |
G004 | GAL 9 | 1.6m | - |
G005 | ES 9 | 1.6m | - |
G006 | HF 1004 | 1.6m | - |
G007 | HF1200 | 1.6m | - |
G008 | ABB 1220 | 1.6m | - |
G009 | GAL 12.5 | 1.6m | 100kg |
G010 | HF 1254 | 1.6m | 100kg |
G011 | CC 1400 | Short 1.6m | 125kg |
G012 | HF 1400 | Short 1.6m | 125kg |
G013 | CC 1400 | Long 2m | 160kg |
G014 | HF 1400 | Long 2m | 160kg |
G015 | HF 1454 | Short 1.6m | - |
G016 | HF 1454 | Long 2m | - |
Flanges
The following table details standard flange configurations that Polyline manufactures. Other configurations can be accommodated to suit your requirements.
Silencer | 'A' | 'B' | 'C' | 'D' | 'E' |
HF 804 | 804 | 890 | 841 | 14 | 16 |
GAL 9 | 904 | 1018 | 960 | 20 | 16 |
ES 9 | 997 | 1119 | 1060 | 22 | 16 |
HF 1004 | 1005 | 1093 | 1047 | 14 | 16 |
HF1200 | 1212 | 1360 | 1260 | 24 | 16 |
ABB 1220 | 1232 | 1385 | 1289 | 18 | 20 |
GAL 12.5 | 1258 | 1400 | 1330 | 24 | 16 |
HF 1254 | 1260 | 1370 | 1320 | 18 | 20 |
CC 1400 | 1412 | 1550 | 1490 | 24 | 16 |
HF 1400 | 1400 | 1542 | 1488 | 22 | 16 |
HF 1454 | 1458 | 1600 | 1530 | 18 | 20 |
Intake Cones
Intake Cones are manufactured in various diameters and transitions as required.
Stock | Silencer |
G017 | 700-762 |
G018 | HF 804 |
G019 | GAL 9 |
G020 | ES 9 |
G021 | HF 1004 |
G022 | AF 1200 |
G023 | ABB 1220 |
G024 | GAL 12.5 |
G025 | HF 1254 |
G026 | CC 1400 |
G027 | HF 1400 |
G028 | HF 1454 |
Vent Bag Adaptors
Vent Bag Adaptors are manufactured in various diameters and transitions as required.
Stock | Silencer | Bag Adaptor |
G029 | 700-762 | 700-762 |
G030 | HF 804 | 804-800 |
G031 | GAL 9 | 900-915 |
G032 | GAL 9 | 900-1067 |
G033 | ES 9 | 900-915 |
G034 | ES 9 | 900-1067 |
G035 | HF 1004 | 1004-1000 |
G036 | AF 1200 | 1200-1200 |
G037 | ABB 1220 | 1200-1200 |
G038 | GAL 12.5 | 1250-1200 |
G039 | HF 1254 | 1254-1200 |
G040 | CC 1400 | 1400-1400 |
G041 | HF 1400 | 1400-1400 |
G042 | HF 1454 | 1454-1400 |
Self-Regulating Fan Covers
A simple configuration that bolts to the fan flange and automatically opens or closes with air flow from the fan.
Silencer Test Results
Vent Bag Protectors
Ventilation Bag Protectors are hard plastic sheeting that wrap around the outside of any vent bag to provide protection to the bag in areas where it may be prone to damage from external forces (e.g. damage from trucks).
The sheeting is available in 2mm thickness.
Vent Bag Protectors are available in standard widths which wrap around to protect approximately two-thirds the diameter of the vent bag.
They can be manufactured to any length (min 7 meters).
