SHOW PRICES INCLUDING VAT
Trustpilot
Click to visit the Rapid Blog - Supporting welders every step of the way
0Your Basket : £ 0.00
WE HAVE SOME GREAT LIMITED-TIME OFFERS - CLICK HERE TO VIEW THEM WE SHIP WORLDWIDE    /    All UK ORDERS GREATER THAN £75 EX VAT DELIVERED FREE    /    WE SHIP WORLDWIDE    /    ALL EUROPEAN ORDERS GREATER THAN £500.00 ex VAT DELIVERED FREE    /    WE SHIP WORLDWIDE

Speedglas 9100 Adflo Parts

Speedglas 9100 Adflo Parts FAQs

Straight answers to the questions people ask most when choosing and looking after spare parts for a powered air welding helmet with an auto-darkening filter.

How do I make sure a spare part fits my helmet?icon-minus-redicon-plus-red

Start with the model markings on the helmet itself and on the filter lens, then check them against the user manual, which lists the parts that belong to your version. Helmets in the same family often come in several variants, with different filter sizes, cover plates and side windows, so a part that looks right may not be.

If you cannot find a marking, compare the old part side by side with the replacement, and check the part number printed on it. If you are still unsure, our team can help you match the part to your helmet before you order.

How often should I change the outer protection plate?icon-minus-redicon-plus-red

There is no fixed interval. Change it when spatter, scratches or grinding dust make it hard to see through, or when it has pitted or cracked. A dirty or damaged plate forces you to lean in and strain, which is a safety issue as well as a comfort one.

Outer plates are the sacrificial layer that protects the filter lens, so it is sensible to replace them freely rather than risk scratching the lens itself. Heat-resistant and scratch-resistant types exist, and the right one depends on how much spatter and grinding your work produces.

What is the difference between the outer plate, the inner plate and the filter lens?icon-minus-redicon-plus-red

The outer plate is the clear sacrificial cover at the front. It takes the spatter and scratches and is changed most often. The inner plate sits behind the filter lens and keeps dust and debris from reaching the lens from inside the helmet.

The auto-darkening filter lens is the part that changes shade when the arc strikes. It is the most delicate and valuable part of the optical stack, which is why the plates either side of it are there. Never run the helmet without the plates in place.

How do I choose the right shade range for a replacement auto-darkening filter?icon-minus-redicon-plus-red

The shade you need depends on the process, the current and the brightness of the arc, so work from the welding procedure or your risk assessment rather than a guess. Many filters offer a fixed low shade for grinding or setting up and a variable range for welding.

A wide variable range covers most MIG, TIG and stick work. Check that the replacement has the same outline size as the original, and that any upgrade or replacement kit is listed as suitable for your helmet version, as the fittings can differ.

Which filters do I need for the powered air unit, and when do I replace them?icon-minus-redicon-plus-red

The unit normally needs a particle filter for welding fume. Where there are gases or vapours, such as solvents, a suitable gas filter can be fitted as well, and some systems use an odour filter or a spark guard for added protection. Choose the filter type from your workplace risk assessment, not from habit.

Replace a particle filter when it is damaged, clogged, or when the unit's airflow warning shows that airflow has dropped. Pre-filters trap larger dust and are changed more often, which helps the main filter last longer.

What does an airflow check tell me and how do I use it?icon-minus-redicon-plus-red

Powered air units are designed to supply a minimum airflow to the helmet, and the maker supplies a method of checking it, such as a flow indicator or a test described in the manual. Follow the instructions for your own unit exactly, and carry out the check at the intervals the maker specifies. Many users also check at the start of each shift and after changing a filter or battery.

If the airflow is low, common causes are a clogged filter, a part-charged battery, a kinked or damaged hose or a poorly fitted connection. Do not weld until the cause is found and the airflow is back to the level the manual requires. Never ignore a low-flow warning.