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Сварочный Аппарат
DWP-1000
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Defort DWP-1000 [9/20] Preparations for use

SPECIFIC SAFETY WARNINGS

WARNING

● Since the heating element reaches working temper-

atures of up to 300°C, do not touch the heating ele-

ment or steel components between the heating ele-

ment and the plastic handle, once the unit has been

plugged in. Also, do not touch the welded seam on

the plastic pipe or any part of the pipe near welded

seam on the plastic pipe or any part of the pipe near

the seam during and after welding. After the unit has

been unplugged, it will take a certain time to cool

down. Do not accelerate the cooling process by im-

mersing the unit in liquid, otherwise it will be dam-

aged.

● When setting the unit aside when hot, take care to

ensure that the heating element does not come into

contact with combustible material.

● Place the unit down only on its supporting stand, in

the bench support or on a ﬁ re-retardant base.

● Heating spigots and heating sockets shall only be

changed when cold.

Use for the intended purpose

WARNING

Use heating element muff welding equipment for weld-

ing plastic pipes

and mouldings of PB, PE, PP and PVDF.

All other uses are not for the intended purpose and are

prohibited.

2. PREPARATIONS FOR USE

2.1. Electrical connection

WARNING

The sleeve welding unit must be connected to a sock-

et with protective earthing (earth conductor). Note the

mains voltage! Before connecting the unit, check to

ensure that the voltage given on the rating plate corre-

sponds to the mains voltage.

CAUTION

When the unit is hot, hold it only by the handle (3).

Do not touch the heating element (4), the welding

tools (5) or the metal parts between the handle (3)

and heating element (4), otherwise a burn injury

may result.

2.2. Selection of welding tools

Select welding tools (5), heating spigot and heating

socket, according to the pipe size. The tools are mount-

ed on the heating element (4) with the allen key sup-

plied. Two welding tools can be mounted on the heating

element at the same time.

2.3. Preheating of the sleeve welding unit

As soon as the connecting lead is connected to the

mains, the welding unit begins to heat up. The green

power-on indicator lamp (6) and the red temperature in-

dicator lamp (7) light up. The unit requires about 10 min.

to heat up. Once the required temperature is reached,

the built-in thermostat cuts off the power supply to the

heating element. The red temperature control lamp

turns off. Whenever the red temperature control lamp is

lit, the no welding should be carried out.

2.4. Selecting the correct welding temperature

The welder heating element is preadjusted to the aver-

age welding temperature for PP pipes (260°C). Depend-

ing on the pipe material and gauge of the pipe walls,

it may be necessary to adjust this temperature. In this

case, observe the manufacturer’s information on the

pipes or mouldings without fail. In addition, the tempera-

ture of the welding tools (spigot and socket) should be

checked with an electric surface thermometer. If neces-

sary, the temperature can be adjusted by turning the

temperature adjusting screw (8). In this case, it should

be remembered that the heating element must not be

used until 10 minutes after the preset temperature has

been reached.

3. OPERATION

3.1. Description of process

In welding with the sleeve welder, the pipe and sleeve

are welded together overlapping. The end of the pipe

and moulded sleeve are heated to welding tempera-

ture by means of the welding tool (spigot and socket),

then welded together. The end of the pipe and ﬁ tting are

matched to the welding spigot and socket respectively

in such a way that a build-up of pressure takes place in

the joint when the two components are mated (Fig. 3).

3.2. Preparations for welding

Take care to observe the information issued by the man-

ufacturer of the pipes or mouldings. The end of the pipe

must be cut off square and ﬂ at, either with a pipe cutter

or pipe shears. In addition, the end of the pipe should

be chamfered to facilitate insertion into the socket. This

process should be performed with the pipe chamfering

unit. Immediately before welding, the end of the pipe

and interior of the sleeve and, if necessary, the heating

spigot and socket should be cleaned with non-adherent

paper or a non-fraying cloth and spirit or industrial al-

cohol. In particular, no remnants of plastic must be left

adhering to the coating on the heating spigot or sock-

et. When cleaning the welding tools, take care to en-

sure without fail that their anti-adhesive coating is not

damaged by tools. The welding surfaces must not be

touched again before welding takes place.

3.3. Welding process stages

3.3.1. Heating-up

For the heating-up process, the pipe and moulding are

pushed axially onto the welding tools in a continuous

movement until they reach the stop or the marking on

the tools. During the heating process, heat penetrates

into the joint faces and brings them up to welding tem-

perature.

3.3.2. Changeover and joining

After the heating process, the pipe and moulding are

pulled away from the welding tools in a series of jerks and

pushed together, without twisting, as far as they will go.

Defort DWP-1000 [9/20] Preparations for use

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