Spray booth push button start and stop question

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Knick

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Location
Grand Rapids , MI
Hello

We have two open face spray booths and the controls for the fan and lights are mounted on the side. They are back far enough and are outside of the class 1 division 1 area. Problem is nobody will make the effort to turn the booths off when not being used for short periods (5-15 mins) because its to much trouble.

I want to install a on and off button they can access inside the booth. I was thinking of cutting a hole in the side of the booth by the control cabinet and using light weight rubber to cover and seal the hole and mount the push buttons on the other side. This would keep them sealed off and be a easy fix to the problem.

what are your thoughts?
Thanks for your time
 
Knick said:
Hello

We have two open face spray booths and the controls for the fan and lights are mounted on the side. They are back far enough and are outside of the class 1 division 1 area. Problem is nobody will make the effort to turn the booths off when not being used for short periods (5-15 mins) because its to much trouble.

I want to install a on and off button they can access inside the booth. I was thinking of cutting a hole in the side of the booth by the control cabinet and using light weight rubber to cover and seal the hole and mount the push buttons on the other side. This would keep them sealed off and be a easy fix to the problem.

what are your thoughts?
Thanks for your time
Click to expand...

I don't think "light weight rubber" is an acceptable seal-off method for a Class I Div 1 boundary, not to mention that you'll need a push button panel suitable for use inside a Class I Div 1 area.
 
gadfly56 said:
I don't think "light weight rubber" is an acceptable seal-off method for a Class I Div 1 boundary, not to mention that you'll need a push button panel suitable for use inside a Class I Div 1 area.
Click to expand...
The OP is proposing putting the buttons outside the booth facing towards the booth wall and the rubber membrane.
If you accept the integrity of the rubber sheet the buttons (and their switches) will not be inside the Div 1 area. Possibly not even Div 2.

Sent from my XT1585 using Tapatalk
 
gadfly56 said:
I don't think "light weight rubber" is an acceptable seal-off method for a Class I Div 1 boundary, not to mention that you'll need a push button panel suitable for use inside a Class I Div 1 area.
Click to expand...

Well I guess when I say light weight I think of something light enough to give so you could push the button on the other side but easily be a air tight seal. The push button panel would be outside the classified area.

Thanks for you input
 
GoldDigger said:
The OP is proposing putting the buttons outside the booth facing towards the booth wall and the rubber membrane.
If you accept the integrity of the rubber sheet the buttons (and their switches) will not be inside the Div 1 area. Possibly not even Div 2.

Sent from my XT1585 using Tapatalk
Click to expand...

Correct, the switches would be in the same location as the one supplied by the manufacturer.

Thank you
 
GoldDigger said:
The OP is proposing putting the buttons outside the booth facing towards the booth wall and the rubber membrane.
If you accept the integrity of the rubber sheet the buttons (and their switches) will not be inside the Div 1 area. Possibly not even Div 2.

Sent from my XT1585 using Tapatalk
Click to expand...

Well, when you put it that way...:slaphead: You may still have some issues with respect to fire protection. The booth is (or should be) equipped with a fire suppression system. The engineered system design assumes that the boot is of a particular construction (e.g. steel) without any openings except for the face of the booth and the exhaust duct. If there was a fire in the booth, it might burn through the membrane before the suppression system activates and ignite something on the outside.
 
gadfly56 said:
Well, when you put it that way...:slaphead: You may still have some issues with respect to fire protection. The booth is (or should be) equipped with a fire suppression system. The engineered system design assumes that the boot is of a particular construction (e.g. steel) without any openings except for the face of the booth and the exhaust duct. If there was a fire in the booth, it might burn through the membrane before the suppression system activates and ignite something on the outside.
Click to expand...


Ahhh good point, so maybe a different material? something that would would seal it but be fire resistant or proof

Thanks for chiming in
 
Rod and prox switch.

Rod and prox switch.

If you are going to put a hole in the booth, run a steel bar out of booth to a prox switch that will control the lights. Slide bar to turn lights off or on.
 
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