Positive Pressure Welding Enclosure (PPWE)
PPWE are used to create a safe module within a hazardous area to allow field welding be conducted in place or at times when it could otherwise be impractical or prohibited. The PPWE two main objectives are:
- To contain sparks from hot work inside the habitat and thus prevent them from reaching flammable gas.
- To prevent flammable gas from entering the habitat by using internal overpressure.
The PPWE are typically used for:
- Hot work at Zone 1
- Hot work at Zone 2
- Maintaining ambient temperatures for coating or insulation work where containment is an important requirement.
Solar Alert habitat are:-
- Constructed using special flame retardant flexible panels which are zipped together and sealed with velcro. This allows any size and shape of habitat to be created.
- Constructed to include an air lock. This is typically used when building large scale welding habitats.
- Inclusive of an escape panel configured to allow easy access to a predetermined escape route.
- Flexible in shape and size depending on requirement
- Equipped with marine aluminum door frame with a window to allow the fireguard to observe the work party inside, while monitoring the pressure control gauge, which is fixed to the door manifold.
- Equipped with a transit panel fitted into the door that allows all temporary cables and leads to be tidied away.