Aluminumradiator's Weblog

Oil filled radiator heater

aluminumradiator — Thu, 03 Jul 2008 13:51:02 +0000

Most mast radiators are built as guyed masts insulated against ground. Steel lattice masts, of triangular cross-section, are the most common type. Square lattice masts and tubular masts are also sometimes used.

Free-standing towers are also used as radiating structures. These towers can have a triangular or a square cross section. One of the best-known radiating towers is the Blosenbergturm in Beromünster.

Concrete towers are not suitable for insulation, because of their enormous weight, exceeding the weight of guyed masts and lattice masts in an order of at least 10.

However masts of glass fibre are sometimes used for some small constructions.

Mast height

The ideal height of a mast radiator depends on transmission frequency, demographics for the location, and terrain. For radio systems in the longwave and mediumwave range the value of the height should be in the range between one sixth and five eighths of the wavelength, with favourite values at the quarter or the half of the radiated wavelength. When this is not always possible, masts with a loading coil, ‘capacity hat’ or similar loading arrangement are used. The quarter-wave mast is a form of monopole antenna.

The height of the mast determines the radiation properties. For high power transmitters in the MW range, masts with heights around half of the radiated wavelength are preferred because they focus the radiated power better to the ground than structures with heights of quarter wavelengths, which are preferred of economical reasons for low power medium wave transmitters. A focus of radiated power towards the ground is much desired on frequencies below 3 megahertz, because groundwave propagation is very stable. Masts longer than five eighths of the wavelength are normally not used, because they show bad vertical radiation patterns, so masts for mediumwave transmitters do normally not exceed 300 metres. For longwave transmitters, however, the construction of masts with heights of half-wave wavelength is, because of economical reasons (and perhaps problems with the flight safety), in most cases impossible. The only so far realized radio mast for longwave with a height of the half length of the radiated wavelength was the Warszawa Radio Mast at Konstantynów, Poland. For frequencies below longwave masts are electrically enlarged by loading coils or capacity hats on the top, because masts of even quarter wave length would be too high.

Feed arrangements

There are three ways of feeding a mast radiator from a transmitter:

* Base feed: the mast is supported on an insulator, and the transmitter is connected to the mast just above it;
* Shunt feed: the mast is grounded and the transmitter feeds it via a wire connected to the mast part way up. (This is a similar approach, on a larger scale, to the ‘gamma match’ popular among amateur radio operators for VHF and UHF amateur radio antennas.)
* Multiple feed: the structure is divided into two (or more) sections with insulators between, each independently fed. This collinear arrangement enhances low-angle (ground wave) radiation and reduces high-angle (sky wave) radiation. This increases the distance to the mush zone where the ground wave and sky wave are at similar strength at night. This type of antenna is known as an anti-fading aerial (see below).

There is usually an antenna matching unit to match the impedance of the transmitter or feeder to the antenna. Depending on the power involved, this may be a small box or a hut or building. It will typically contain an L-network to transform the modulus of impedance, and a coil or capacitor in series with the mast connection to ‘tune out’ any reactive component.

Location on transmission facility

At some facilities, especially the older and higher-powered installations, the mast radiator may be located at some distance of the transmitter building, in order to reduce the field strength induced by the mast into the building, and to prevent the building from distorting the mast’s radiation pattern. Between the transmitter building and the antenna matching unit next to the mast radiator, there is a feeder: either an underground coaxial cable or an overhead wire ‘cage’ feeder.

At facilities with multiple masts, spacings are typically smaller, in order to fit them into the available space.

At modern transmitters or at low power transmitters situated in very small transmitter buildings the transmitter, matching unit and mast radiator can be very close together and even in the same building. This measure saves on feeders, land area and increases the efficiency of the transmitter, if only one mast radiator is in use.

At most facilities the mast radiator is on a separate base close to the antenna matching unit, but it can be sometimes set up the roof of it. This is for example the case at the main transmission mast of transmitter Muehlacker and the main transmission mast of transmitter Ismaning.

For a good groundwave propagation, mast radiators should be built always on a large flat area with good ground conductivty and if possible without inclination. The construction of a mast radiator on the top of a building or a tower, whose height is in the same magnitude range as the wavelengths beeing transmitted gives a bad groundwave propagation. So mast radiators are in opposite to FM broadcasting antennas normally not installed on the top of buildings or towers. Nevertheless in rare cases mast radiators for low power trnsmissions are installed on top of buildings. So carry some lighthouses like Reykjanesviti a mast radiator for a longwave radio beacon on its roof. Also low-power broadcasting stations uses and used such arrangements. The best-known is WGSO in New Orleans. In Europe the low-power broadcasting station at Campobasso uses a mast radiator on a castle.

Fencing

Mast radiators, as with all other equipment showing over 42 volts on exposed components within 4 metres of the ground, are required to be fenced in. Sometimes wooden fences are used in order to prevent signal interference, which could occur due to currents induced by radio signals in metallic fences. If the mast radiator is mounted on the top of the helix building, which must be over four meters in height; or the mast is grounded, with the feed being located not less than four meters above the ground, a fence is not required. Nevertheless it is always recommended to fence in any mast radiator in order to prevent unauthorized climbing.

Ancillary connections

A mast radiator may need various electrical connections other than the main RF one. Such connections include static drain chokes for lightning protection, power supplies for aircraft warning lamps, and coaxial feeders for ancillary antennas mounted on the mast. A variety of techniques are used to ‘isolate’ these connections at the main RF frequency, such as chokes, parallel tuned circuits and coupling loops, on a base-fed mast. On a shunt-fed mast, where the base is grounded, no such measures are necessary.

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what is Conventional radiators

aluminumradiator — Tue, 13 May 2008 04:23:34 +0000

A conventional hot-water radiator consists of a sealed hollow metal container, usually flat in shape. Hot water enters at the top of the radiator by way of pressure, from a pump elsewhere in the building, or by convection.

As it gives out heat the hot water cools and sinks to the bottom of the radiator and is forced out of a pipe at the other end. The pipe either has a large surface area or attached fins to increase its surface area and therefore contact with surrounding air. The air near a radiator is then heated and produces a convection current in the room drawing in cold air to heat.

If set up improperly, radiators, and their supply and return pipes, can make loud banging noises like someone hammering on the pipes. This is due to either the pipes rubbing on surrounding surfaces while expanding and contracting due to heat changes or to sudden fluctuations of the supplied water pressure. Proper mounting of the radiators and supply pipes will reduce expansion noises, while upward-mounted stub ends with a trapped bubble of air (not interfering with flow, as would an un-bled radiator) will provide a cushion against pressure fluctuations, an anti-hammer device.

Stereotypical cast iron radiators (as pictured) are no longer common in new construction, replaced mostly with copper pipes which have aluminum fins to increase their surface area. In the U.K., modern domestic radiators tend to be of sheet steel construction (often with steel fins), though copper/aluminium is often found in industrial Air Handling System heat exchangers.

The radiator was invented in 1855 by Franz SanGalli. He was the first to produce a system of central heating and patented his invention in Germany and the US.

There are many designs and varieties of aluminum radiators, from conventional to modern style. Radiators are sometimes seen as an art form, much like sculpture.

From:http://www.suofei-radiator.com/blog/html/y2008/8.html

Links:Radiator,China radiator,aluminum radiator,aluminium radiator,electric radiator,oil radiator,radiator manufacturer,Bathroom radiator ,towel radiator ,Electric towel warmer
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Steel aluminum compound radiator

aluminumradiator — Mon, 28 Apr 2008 08:51:08 +0000

UOFEI is a professional manufacturer in high pressure die casting aluminum radiators.

The steel aluminum compound radiator use ADC12 aluminium which is the special anti-friction and anti-erosion material for die-casting and a steel pipe inside.

The steel aluminum compound radiator is produced by 800T automatic pressure die-casting machines and can one time integrated shape. It is high endurance

Using homogeneous-material welding technique.

Electrostatic epoxy-coated and twice baked in 200oC, the products have smooth, long-lasting and bright surface.

The complete test system ensure the products’ safety and reliability.

The products have good thermal conductivity and the style is simple, good-looking, light and convenient to install, succeeding to European best technique in radiator producing.

Steel aluminum compound radiator

Oil filled radiator heater

aluminumradiator — Mon, 28 Apr 2008 08:48:07 +0000

As a professional die cast aluminum radiator manufacturer, the electric oil filled radiator is our innovative product, also it is the main product in our company.

2. The heater is filled in Everlasting efficient oil.

3. Variable thermostat with remote controller or not.

4. Good thermal conductivity and anti-corrosion.

5. Different power, such as 600W, 900W, 1200W,1500W,2000W and so on.

Oil filled radiator heater

oil Radiator in china

aluminumradiator — Mon, 28 Apr 2008 08:44:21 +0000

The towel warmer is elegance European style designed with high thermal conductivity.

2. It is long lifespan, fast weld, anti-oxidize and never fade in color.

3. The heater is made of stainless steel with different kinds of shape, such as D shape, round shape, square shape and so on.

4. The towel radiator’s surface is plastic spray or chrome-plated. Also we can produce electric towel warmer .

5. The products are widely used in bathroom, living room and bedroom.

Oil radiator

Photo
No.	SF-500-E1	SF-500-E2( with remote control)
Central Distance(mm)	500	500
Certificate	ISO9001:2000,CE,RoHS	ISO9001:2000,CE,RoHS
Payment Terms	L/C at sight & TT	L/C at sight & TT
Packing	Carton	Carton
MOQ	500PCS	500PCS
Delivery Time	50days	50days
VOLTAGE	220V~240V	220V~240V
FREQUENCY	50HZ	50HZ
*Dimension(LHD), if you need other power, please tell us.*	600W: 48558685mm	600W: 48558685mm
	900W: 64758685mm	900W: 64758685mm
	1200W: 80958685mm	1200W: 80958685mm
	1500W: 97158685mm	1500W: 97158685mm
	2000W: 129558685mm	2000W: 129558685mm

Die Casting Aluminum radiator

aluminumradiator — Mon, 28 Apr 2008 08:34:28 +0000

SUOFEI is a professional manufacturer in high Die Casting Aluminum radiator.

The die-cast aluminum radiator use ADC12 aluminium which is the special anti-friction and anti-erosion material for die-casting.

The die cast aluminum radiator is produced by 800T automatic pressure die-casting machines and can one time integrated shape. It is high endurance. The working pressure reaches 1.0-2.0Mpa and the test pressure reaches 3.0Mpa.

Using homogeneous-material welding technique.

Electrostatic epoxy-coated and twice baked in 200oC, the products have smooth, long-lasting and bright surface.

The complete test system ensure the products’ safety and reliability.

The products have good thermal conductivity and the style is simple, good-looking, light and convenient to install, succeeding to European best technique in radiator producing.

Die cast aluminum radiator:
Photo Aluminum radiator Die cast aluminum radiator Die casting aluminum radiator Die casting aluminium radiator
No. SF01 SF02 SF03 SF04
Model SF-500A SF-500A FH-500A SF-500B
Dimension(H*L*D:mm) 582×80×98 582×80×85 682×80×80 586×80×85
Central Distance(mm) 500 500 600 500
Water Content(L/PC) 0.38 0.41 0.38 0.38
Thermal Output(△t=50℃） 128 122 138 128
Weight(kg/pc) 1.48 1.28 1.59 1.38
Working Pressure(Bars) 10_20 10_20 10_20 10_20
Testting Pressure(Bars) 30 30 30 30
Connecting size (inch) 1” 1” 1” 1”
Packing carton carton carton carton
Delivery Time(1X40′HQ) 60 days 60 days 60 days 30 days
Payment Terms L/C at sight & TT L/C at sight & TT L/C at sight & TT L/C at sight & TT
Certificate ISO9001:2000,CE ISO9001:2000,CE ISO9001:2000,CE ISO9001:2000,CE
Description 1. High-quality ADC12 Aluminum with lighter weight
2. Good thermal conductivity
3. Anti-corrosion
4. Spray painting
5. Guarantee of the safety and reliability
6. Good looking and endurance
7. Multi-colours
8. Equipped with 800T automatic pressure die-cast machines 1. High-quality ADC12 Aluminum with lighter weight
2. Good thermal conductivity
3. Anti-corrosion
4. Spray painting
5. Guarantee of the safety and reliability
6. Good looking and endurance
7. Multi-colours
8. Equipped with 800T automatic pressure die-cast machines 1. High-quality ADC12 Aluminum with lighter weight
2. Good thermal conductivity
3. Anti-corrosion
4. Spray painting
5. Guarantee of the safety and reliability
6. Good looking and endurance
7. Multi-colours
8. Equipped with 800T automatic pressure die-cast machines 1. High-quality ADC12 Aluminum with lighter weight
2. Good thermal conductivity
3. Anti-corrosion
4. Spray painting
5. Guarantee of the safety and reliability
6. Good looking and endurance
7. Multi-colours
8. Equipped with 800T automatic pressure die-cast machines
Photo
No. SF05 SF06 SF07 SF08
Model SF-500B SF-500B SF-500B SF-500A
Dimension(H*L*D:mm) 382×80×85 582×80×85 582×80×80 586×80×90
Central Distance（mm) 300 500 500 500
Water Content(L/PC) 0.25 0.38 0.38 0.4
Thermal Output(△t=50℃） 83 126 126 125
Weight(kg/pc) 1.08 1.38 1.35 1.4
Working Pressure(Bars) 10_20 10_20 10_20 10_20
Testting Pressure(Bars) 30 30 30 30
Connecting size (inch) 1” 1” 1” 1”
Packing carton carton carton carton
Delivery Time(1X40′HQ) 60 days 60 days 60 days 30 days
Payment Terms L/C at sight & TT L/C at sight & TT L/C at sight & TT L/C at sight & TT
Certificate ISO9001:2000,CE ISO9001:2000,CE ISO9001:2000,CE ISO9001:2000,CE
Description

1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines

1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines
1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines
1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines

Aluminum radiator

aluminumradiator — Mon, 28 Apr 2008 08:31:06 +0000

Die cast aluminum radiator:

SUOFEI is a professional manufacturer in high pressure die casting aluminum radiators.

The die-cast aluminum radiator use ADC12 aluminium which is the special anti-friction and anti-erosion material for die-casting.

Using homogeneous-material welding technique.

Electrostatic epoxy-coated and twice baked in 200oC, the products have smooth, long-lasting and bright surface.

The complete test system ensure the products’ safety and reliability.

The products have good thermal conductivity and the style is simple, good-looking, light and convenient to install, succeeding to European best technique in radiator producing.

1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines

1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines
1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines
1. High-quality ADC12 Aluminum with lighter weight

2. Good thermal conductivity

3. Anti-corrosion

4. Spray painting

5. Guarantee of the safety and reliability

6. Good looking and endurance

7. Multi-colours

8. Equipped with 800T automatic pressure die-cast machines

electric radiator

aluminumradiator — Mon, 28 Apr 2008 08:29:18 +0000

The towel warmer is elegance European style designed with high thermal conductivity.

2. It is long lifespan, fast weld, anti-oxidize and never fade in color.

3. The heater is made of stainless steel with different kinds of shape, such as D shape, round shape, square shape and so on.

4. The towel radiator’s surface is plastic spray or chrome-plated. Also we can produce electric towel warmer .

5. The products are widely used in bathroom, living room and bedroom.

Electric Aluminum Oil Radiator

Photo
No.	SF-500-E1	SF-500-E2( with remote control)
Central Distance(mm)	500	500
Certificate	ISO9001:2000,CE,RoHS	ISO9001:2000,CE,RoHS
Payment Terms	L/C at sight & TT	L/C at sight & TT
Packing	Carton	Carton
MOQ	500PCS	500PCS
Delivery Time	50days	50days
VOLTAGE	220V~240V	220V~240V
FREQUENCY	50HZ	50HZ
*Dimension(LHD), if you need other power, please tell us.*	600W: 48558685mm	600W: 48558685mm
	900W: 64758685mm	900W: 64758685mm
	1200W: 80958685mm	1200W: 80958685mm
	1500W: 97158685mm	1500W: 97158685mm
	2000W: 129558685mm	2000W: 129558685mm

if you want to know more about electric radiator,pls visitor radiator

Ningbo Suofei Radiator Co.,Ltd

aluminumradiator — Mon, 28 Apr 2008 08:20:40 +0000

Ningbo Suofei Electrical Appliance Co., Ltd. is a professional radiator company. Our company owns more than 300 employees, more than 20 intermediate and senior technical and management personnel, 5 standard workshops, more than 300 units (sets) of various modern production equipments from die-casting to lacquering, domestic advanced automatic plastic-spraying production lines, at the same time, it is equipped with imported advanced testing instruments such as spectrum analyzer, as well as professional laboratories such as testing laboratory, physical & chemical laboratory, metrology laboratory and paint laboratory etc,.

Our company is based on the fundamental as “High start point, high standard, high quality”, market-oriented, striving for consumers satisfaction, and mainly produce die cast aluminum radiator, electric oil radiator and towel warmer. Especially the new developed advanced high-pressure cast aluminium radiator are already exported to more than ten countries and regions in Europe and North America owing to its features, such as high safety and reliability, high heat efficiency, good thermal performance, being energy-saving, environment-friendly and light, long service life and so on, and won highly favorable praises from all customers.our product have:Aluminum radiator,radiator,aluminium radiator,Towel warmer,Electric radiator,Steel aluminum compound radiator ,Radiator,Aluminum radiator,Aluminium radiator,Die casting aluminum radiator,Die cast aluminum radiator,Die-cast aluminum radiaotr.Towel warmer,Bathroom radiator
,Towel radiator
,Towel heater
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,Heated towel warmer
,Electric towel warmer ,,Electric radiator,Electric heater ,Oil radiator,Oil heater ,Oil filled radiator,Oil filled radiator heater,Oil filled heater,Oil filled electric heater,Electric oil radiator,Electric oil heater,aluminum radiator,towel warmer,electric radiator

Our company always pursues to the tenet as “Quality First, Reputation First, Service First”, takes users’ requirements as our tasks, continuously introduces foreign advanced technologies and equipments, enlarges producing capacity, actively exploits international markets, to make itself become a first-class high-standard, high-level and competent radiator manufacturer in the world.

We sincerely welcome people from all over the world and look forward to establish business relations between us.

Ningbo Suofei Electrical Appliance Co., Ltd

Address:West industry zone, Guanhaiwei, Cixi, China

Telephone: +86-574-63688888,63685222

Fax: +86-574-63688777

Mobile Phone:013805811033

E-mail:Chris@suofei-radiator.com??chris@nbsuofei.com

Contact: Chris Yu

Website: http://www.suofei-radiator.com

Links:Bedroom Furniture,Water Filter,Auto Bearings,Automotive Bearings,Iron Casting,Connector,Hydraulic Valves,Wooden Toys,Wind Generator,Wind Turbine,Die Casting,Aluminum Die Casting,Plate Bending Machine,Shower Room ,ball valves

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aluminumradiator — Mon, 28 Apr 2008 08:00:50 +0000

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