FAQ
Amventco FAQ, frequently asked questions, your questions answered, Q&A and helpful links.
SHX-UN Universal Pressure Vent
Yes they can as long as they are separated by something
Upon installation the vent should be manually checked by pushing on each blade to make sure it opens fully and closes completely. Once a year the vent should be visually checked to make sure there are no physical obstructions blocking the area surrounding the vent. After activation, the vent will self close and can be used again, no further maintenance is required.
Operates at 80 Pascals and fully open at 95 Pascals
The opening pressure of the standard SHX-UN can be adjusted to 45-50pas with the use of magnets.
No, the SHX-UN is 4 hour fire rated from outside to inside only
Yes, see install guide for details
The original 2 hour fire test was done on a plasterboard wall. It is 2 hours because it was tested it in a 2 hour fire rated wall and that's as long as the wall lasted. The SHX-UN will go on indefinitely
The High X-100 was renamed to SHX-UN in 2008 because the SHX UN is a High X-100 damper with wall liner and wall liner extension to fit walls from 0 to 380mm with no extra parts and therefore 'universal'. One of the points of the test is to show the hole made in a 2 hour plasterboard wall with one of our SHX UN or High X-100 dampers, it did not compromise the fire integrity of the wall. The wall failed after 2 hours but not around the hole cutout.
No, the SHX-UN is not smoke sealed but the DWP dynamic weather panel is smoke sealed and can be used with the SHX-UN.
From a vent point of view the SHX-UN will maintain integrity almost indefinitely but the fire rating of the wall will limit it. The basic rule of thumb is when you cut the hole in the wall for the vent, the cutout area needs to be constructed and finished as the wall is. e.g. If it were a plasterboard wall then you would line the hole with studding and cover it with the same type and thickness of plasterboard.
No, the SHX-UN is not IP rated. The HE-BP Heavy Duty Blast Panel is IP54 Cat certified and can be used with out without the SHX-UN.
DUX Two Way Pressure Vent
Upon installation the vent should be manually checked by pushing on each blade to make sure it opens fully and closes completely. Once a year the vent should be visually checked to make sure there are no physical obstructions blocking the area surrounding the vent. After activation, the vent will self close and can be used again, no further maintenance is required.
No, the DUX is 4 hour fire rated from inside to outside only
Yes they can as long as they are separated by something
It is designed to open at 85 to 95 pascals for negative and around 100 to 120 pascals positive air pressure
Negative pressure relief means the gas protected room air will shrink due to the chilling effect of a halocarbon gas such as FM200 or NOVEC and so for this action the vent will open into the room. After a short period these gasses warm up and then create a positive pressure and for this action the vent will then open outwards from the room. This is if you are using a two way vent such as the DUX or DMX
Certification
The HE-BP heavy duty blast panel is IP54 Cat Certified.
