Квадратни Канали

Квалитетна изработка
Професионална монтажа
Докажан квалитет

Rectangular Ducts

The rectangular ducts are with stiffening for strength improvement. Also according to the dimensions we install galvanized bars to strengthen the duct if it is needed. We produce rectangular ducts from galvanized steel. Our production line is flexible and we are able to do more than these parts explained here. By normal production and dimensions we give the parts that are more common and demanded. By costumers demand we can produce ducts that are not explained in this catalogue. The rectangular ducts are with stiffening for strength improvement. Also according to the dimensions we install galvanized bars to strengthen the duct if it is needed

Normal dimensions - rectangular ducts

The marking of the normal dimensions are shown on the upper right photo. The marking of the normal dimensions are shown on the upper right photo. The normal dimensions are:

  •  Dimensions a>150mm and b>150mm.
  •  Length L=1500mm.

Rectancular bending section

We are characterized with flexible rectangular bend section production.  As shown on the photo all parameters can be modified. The rectangular bend sections are stiffened for strength improvement. According to the dimensions we install galvanized bars and deflectors for better performance and strength if it is needed.

Normal dimensions - rectangular bend section

The dimensions here vary according the parameters shown on the photo. Normal dimensions are considered the most used dimensions. That does not exclude manufacturing dimensions that are not mentioned as normal. The normal dimensions are:The dimensions here vary according the parameters shown on the photo. Normal dimensions are considered the most used dimensions. That does not exclude manufacturing dimensions that are not mentioned as normal. The normal dimensions are:

  • Dimensions D>150mm.
  •  Any angle ( 1°<angle<180°)

Endings

On the ends of the Rectancular bending section we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions W and D. By costumer’s demand we close one or two ends of the rectangular

Rectangular bending types

We are producing different types of bending sections. The most common types are:

.• Bending with equal dimensions on the endings.

Here are the changeable dimensions:

– Width (bottom) – W

– Depth (bottom) – D

– Straight part(horizontal) – Sh

– Straight part(vertical) – Sv

– Radius (internal) – R

• Bending with different dimensions on the endings – Reducer bendings• Bending with different dimensions on the endings – Reducer bendings

Here are the changeable dimensions:

– Width (bottom) – Wb

– Depth (bottom) – Db

– Width (top)  – Wt

– Depth (top) – Dt

– Strait part top- strait part down

– Straight part(horizontal) – Sh

– Straight part(vertical) – Sv

• Reducer bending by different angle and different a, b, c, and d dimensions 

Here all the parameters are changeable:

– Width (bottom) – Wb

– Depth (bottom) – Db

– Width (top)  – Wt

– Depth (top) – Dt

– Radius (internal) – Ri

– Angle  – angle-

Straight part(bottom) – Sb

– Straight part(top) – St

• Rectangular bending with two different angles.

On this element we can change these parameters:

– Width (top) – a

– Depth – b

– Width (bottom) – c

– Radius (internal) – Ri

– Radius (external) – Re

– Angle (top) – angle2

– Angle (bottom) – angle1

– Straigt part (horizontal) – Sh

– Straigt part (vertical) – Sv

• Rectangular bending sections with splitters.

On this bending we can change these parameters:

– Width top – Wt

– Width bottom – Wb

– Depth – D

– Radius (internal) – Ri

– Distance – W/8

– Distance – W/3

– Distance – W/2

The rectangular bending sections with splitters are produced according the
next regulative

The system used for installing the splitters is composed of guiding clips that hold
the splitter and special conical ending. Those are shown together with their use

Guiding clips

Conical ending

Installing splitters

One side rectangular reducer

The one side rectangular reduction sections – reducers, are one of the basic parts used for HVAC ventilations. On this type of a reducer the adjustable parameters are shown and explained bellow.

Normal dimensions – rectangular reduction sections – reducers
The dimensions here vary according the parameters shown on the photo. Normal dimensions are considered the most used dimensions. That does not exclude parts from manufacturing which dimensions are not mentioned as normal. The normal dimensions are:

• Dimensions D>150mm.

• Straight parts St (straight part top) and Sb (straight part bottom) = 30 mm

• Any Height H>150

• Any Width-top Wt>150mm.

• Any Width-bottom Wb>150mm.

Endings

On the ends of the One side rectangular reducer we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wt,Wb and D.

Both sides rectangular reducer

Both side rectangular reduction sections – reducers, can be designed in variable situations. They are flexible and can be designed to accomplish the costumer’s demands. The adjustable parameters of the both side reducer sections are shown and explained bellow.

Normal dimensions – both sides rectangular reduction sections – reducersNormal dimensions – both sides rectangular reduction sections – reducers
Normal dimensions are considered the most used dimensions. That does not exclude parts from manufacturing which dimensions are not mentioned as normal. The normal dimensions are:

• Dt (depth top) and Db (depth bottom) >150mm.

• Straight parts St (straight part top) and Sb (straight part bottom) = 30 mm

• Any Height H>150

• Any Width-top Wt>150mm.

• Any Width-bottom Wb>150mm.

• Shift width Shw

• Shift depth Shd

Endings

On the ends of the Both side rectangular reduction sections we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wt,Wb,Dt and Db.   On the ends of the Both side rectangular reduction sections we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wt,Wb,Dt and Db.   Depending of the adjustable parameters, mostly by changing Shift width  – Shw and Shift depth – Shd, we can separate two basic types of both side rectangular reduction sections:

Eccentric both side rectangular reduction sections

On this type of reduction section the shifting is done in a way so it is shifted asymmetrical to the center axes. This type has the following parameters:

– Wb  – Width (bottom)

– Wb  – Width (bottom)

– Db – Depth  (bottom)

– Shd – Shift (depth)

– Sb (30 mm) – Strait part (bottom)

– Wt  – Width (top)

– Wt  – Width (top)

– Dt  – Depth  (top)

– Shw  – Shift (width)

– St (30 mm) – Strait part (top)

Endings

On the ends of Eccentric both side rectangular reduction sections we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wt,Wb,Dt and Db.

Concentric both side rectangular reduction sections.

On this type of reduction section the shifting is done in a way so it is shifted symmetrical to the center axes. This type has the following parameters:

– Wb – Width (bottom)

– Wb – Width (bottom)

– Db – Depth  (bottom)

 – Shd – Shift (depth)

– Sb (30 mm) – Strait part (bottom)

– Wt – Width (top)

– Wt – Width (top)

– Dt  – Depth  (top)

 – Shw – Shift (width)

– St (30 mm) – Strait part (top)

Endings

On the ends of the rectangular reduction sections we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wt,Wb,Dt and Db.

Rectangular shift section – setoff

The rectangular sift section – setoff has the following adjustable parameters

– W >150mm

– Width  – W >150mm

– Width  – D >150mm

– Depth  – Sh * – Shift

– Strait part (bottom) – L * – Length

– St (30 mm)

– Strait part (top)

– St (30 mm)

– Strait part (top)

– Sb (30 mm)

The rectangular shift section – setoff is one of the standard and often used types rectangular ducting sections. It can help to shift the duct line in any direction. There are some basic recommendation that should be considered during planning this elements, that are not an obligation:

Endings

On the ends of rectangular shift section – setoff we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions W and D.

Rectangular cross section setoff with variable endings

The rectangular cross section setoff has the following adjustable parameters:

– Wb  – Width (bottom)

– Wb  – Width (bottom)

– Db – Depth  (bottom)

– Sb (30 mm) – Strait part (bottom)

– Rbi – Radius (bottom internal)

– Rbe – Radius (bottom external)

– Sh* – Shift

– Wt – Width (top)

– Wt – Width (top)

– Dt – Depth  (top)

– St (30 mm) – Strait part (top)

– Rti  – Radius (top internal)

– Rte – Radius (top external)

– L* – Length

Description

The rectangular cross section setoff is another one of the standard and often used types rectangular ducting sections. It can help to shift the duct line in any direction and change it’s dimensions. There are some basic recommendations that should be considered during planning this elements, that are not an obligation

Endings

On the ends of rectangular shift section – setoff we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wb,Wt.Db and Dt.

Eccentric rectangular to round reducers

The eccentric rectangular to round reducers has the following adjustable parameters

 – W  – Width

 – Db – Depth

– Sb (30 mm) – Strait part (bottom)

– Shd – Shift depth

– Dt – Diameter (top)

– St – (30 mm) – Strait part (top)

– H  – Length

– Shw – Shift width

Description

The eccentric rectangular to round reducers are used to change from circular to rectangular duct line and as a connection and fitting for various elements.

Endings

On the one end of eccentric rectangular to round reducers we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions W and Db. On the other end there is a coupling for connecting the circular element or circular flange.

Concentric rectangular to round reducers

The concentric rectangular to round reducers has the following adjustable parameters:

– W  – Width

– D – Depth

– Sb (30 mm)

– Strait part (bottom)

– Sh – Shift (Shw =0, Shb=0)

– Dt – Diameter (top)

– St – (30 mm) – Strait part (top)

– H – Length

Description

The concentric rectangular to round reducers are used to change from circular to rectangular duct line and as a connection and fitting for various elements.

Endings

On the one end of concentric rectangular to round reducers we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions W and Db. On the other end there is a coupling for connecting the circular element or circular flange.

– Wl  – Width (left)

– Wl  – Width (left)

– Sl (30 mm) – Strait part (left)

– Rl – Radius (left) – Stl – Strait part (top left)

– D – Depth

– Wt – Width (top)

– Wr – Width (right)

– Wr – Width (right)

– Sr (30 mm) – Strait part (right)

– Rr  – Radius (right)  – Str – Strait part (top right)

– L* – Length

3-Way rectangular Tees - “T-piece”

The 3-way rectangular T-section has the following adjustable parameters:

– Wl  – Width (left)

– Sl (30 mm) – Strait part (left)

– Rl – Radius (left)

 – Stl – Strait part (top left)

– D – Depth

– Wt – Width (top)

 – Wr – Width (right)

 – Sr (30 mm) – Strait part (right)

– Rr  – Radius (right)

– Str – Strait part (top right)

– L* – Length

Description

The 3-way rectangular T-section are used to split one duct line to two duct lines or connect two duct lines into one duct line. With different values of the parameters the T-section has different shapes.

Endings

On the one end of 3-way rectangular T-section we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wl,Wr,Wt and D.

Eccentric rectangular to round reducers

The 3-way rectangular section with a single side part has the following adjustable parameters

– Wb  – Width (bottom)

– Wb  – Width (bottom)

– Sb (30 mm) – Strait part (bottom)

 – R – Radius

– D – Depth

 – Wt – Width (top)

– Ws – Width (side)

– Ws – Width (side)

– Wsb – Width (side bottom)- angle

– Ss – Strait part (side)

– H – Height

Description

The 3-way rectangular section with a single side part are used to split one duct line to two duct lines or connect two duct lines into one duct line. With different values of the parameters the 3-way rectangular section has different shapes.

Endings

On the one end of 3-way rectangular T-section we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wb,Wsb,Ws,Wt and D.

Double rectangular-section with 2 different side parts Y - section

The Double rectangular-section with 2 different side parts – Y – section has the following adjustable parameters

– Wb  – Width (bottom)

– Wb  – Width (bottom)

– Sbr (30 mm) – Strait part (bottom right)

– Rr – Radius (right)

– Wr – Width (right)

– Angle-R – (right)

– Sr – Strait part (right)

– D – Depth

– Sbl (30 mm) – Strait part (bottom left)

– Rl – Radius (left)

– Wl – Width (left)

– Angle-L – (left)

– Sl – Strait part (left)

Description

The rectangular-section with 2 different side parts – Y – section are used to split one duct line to two duct lines or connect two duct lines into one duct line. With different values of the parameters the 3-way rectangular section has different shapes.

Endings

On the one end of 3-way rectangular T-section we install mounting frames (flanges) and corners – 20mm, 30mm and 40mm in dependence of the dimensions Wb,Wr,Wl and D.

Additions

The elements and sections explained in the upper chapters are most common used elements. We have a lot of different elements that are not described in this catalogue.

Frames

On the endings on the ducts and on the segments we are installing a mounting frames of different dimensions. We are installing mounting frames 20mm from flange 20mm and 20 mm corners on sections <1000mm. On sections above 1000mm and less then 2000mm we install mounting frames with flange 30mm and corners 30mm. On ducts and sections larger then 2000mm we install 40mm mounting frames with suitable corners 40mm.

Stiffening and strengthening

All the elements produced in our manufacturing facility are adequate stiffened and strengthened to sustain the necessary pressure class demanded by our costumer. We use different type of steel bars and baffles installed into the ducts and sections so their strength is insured. They are carefully and professionally installed into the duct.

Insulation

On the ducts and sections and special elements we also install different types of insulation depending of the use of that duct line, and the needs of our costumer. The insulations can be from various types and dimensions (thickness). Insulation can be different material and combination of material, external or Internal, etc

Flanges

We also produce flanges from galvanized and stainless steel. We are making them with different dimensions and thickness according our costumer’s needs.

Balancing tape

We also install balancing tape on costumer’s demand. The balancing tape is installed and mounted on the right element if it is demanded. It is necessary to install a balancing tape if there is a need to stop the spreading of the noise trough the duct line.

Dumper mechanism 

Dumper mechanism  The dumper mechanism is made from galvanized sheet metal. We install the dumper mechanism if it is agreed with the costumer on the   right section of the duct line.

Plenum boxes – varius types

Rectangular to round diffusers

Round Ducts and T-sections

Couplings