Euro Hitsauspalvelu Oy / EHP-Selling Ly.3013029-5 Tel. +35840 0578946 marko.makipaa@hitsauspalvelu.fi

WB welding shields

 WB10-50 and WB50-150 welding shields

Should pipes be welded outside with a crucible and there is no replacement for stick welding either? The advantages of the welding chamber have been obtained in the normal use of pipeline installation welding. The device is relatively light and durable in construction and easy to attach to the pipe. The limiting factor for use is the size of the device, which, however, has been kept to a minimum.

Pieni_boxi_auki_putki_sisalla_480x480.jpg?v=1595182958

As the name implies, WB10-50 is intended for wind protection of DN10-DN50 tig welded pipes. This set includes a set of seals with 7 different sizes that allow the chamber to be tightly fitted to different sized pipes.

The WB50-150, on the other hand, is available in sizes DN50-DN150, including a set of seals for six pipe sizes. Both sets have a size of DN50 because it is at that limit and also a very commonly used size.

There is no difference between the chambers other than that the WB10-50 is made lower than the WB50-150 because the chamber should be as small as possible. Nevertheless, very narrow gaps are not reached and the relative fit of the chamber is improved as the diameter of the tube increases.

For example, the diameter of the DN 150 pipe is 168.3 and the width of the WB chamber is 250 mm, in which case a space of +41 mm is required on the side of the pipe. If, on the other hand, the diameter of the DN50 pipe is 60.3 and the width of the WB chamber is 250 mm, space on the side is +95 mm

It has 3 alternative hand openings for performing welding work. As shown in the figure above, the opening at the left end is covered with PC glass. Alternatively, you can use any of the openings in your hand and replace the third opening with a PC glass. Or you can keep leather sleeves in all the openings if the places are very varied. In tests, it has been found that when welding a horizontal pipe from below, for example, it is good to put the PC glass in the larger hand opening in front, it gives a good view from below and can be welded from the openings at the ends. Sleeves and PC glasses can be varied by removing the retaining rings by loosening the nuts.

PC = polycarbonate = polycarbonate

Iso_boxi_auki_peruskuva_240x240.jpg?v=1595182857

Welding wire can be fed by bringing it with the wire feeding hand out of the hand hole, this works at least with thin stainless steel pipes, or can use short pieces of wire. When welding seevs, when the wire should be fed parallel to the groove, it is a good idea to make a bushing either in the chamber body or in the PC glass. The bushing can be done either by drilling a hole with a small pop rivet blade or if you want absolute tightness, you can use the included bushing rubber. The grommet requires a larger hole, so you should first try with a small hole, which is easy to block with pop rivet or silicone if necessary, whether the place is suitable or whether it should be moved a little.

For example, installation welding of thin wall-mounted stainless steel pipes outdoors or in draft places can also be performed well with a tig with this device.

Applications:

- Piping for roofs or walls of buildings.

- Pipe bridges

-Pipe shafts with traction.

-Train piping.

-Port

-Tank piping.

Delivery includes:

- Chamber

- Gasket set DN10-50, 7 sizes or alternatively DN50-150, 6 sizes.

- Aluminum seal storage box.

- Handhole leather sleeves 2 pcs for small handholes at the ends and 1pc for the bigger front opening.

- Polycarbonate glasses for 2 large openings on the top, 1 for the small armhole and 1 for the larger front opening.

- 2 sealing rubbers for welding wire bushings, which can be drilled in a suitable place in the chamber or polycarbonate glass, depending on the situation.

All parts can be ordered separately if required and modified parts and chambers are also made as required. Spare parts are available in the online store and welding shields tailored to your needs can be ordered by e-mail: marko.makipaa@hitsauspalvelu.fi

WARNING! DO NOT USE WB WELDING PROTECTORS WITH MECHANICAL ROTORS. IF, FOR ANY REASON, THE CHAMBER STOPS IN THE ROTARY PIPE AND YOU CAN'T GET YOUR HANDS OUT OF THE CHAMBER OR THE ROTATOR, THE CONSEQUENCES MAY BE SERIOUS.

Kammiolla_hitsattu_karvi.jpgKammio_kayralla_mittakuva_sisalta.jpgKammio_sovitettu_kayralle.jpg

The picture shows the chamber fitted to the curve and the dimensional picture shows that there is a gap of 35 mm between the DN 80 pipe and then the seam welded with the chamber.