ATR-72-500 Hot Air Bypass Valve — Tech Ops Forum

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ATR-72-500 Hot Air Bypass Valve

Radimz From Czech Republic, joined Dec 2006, 8 posts, RR: 0
Posted (5 years 10 months 3 weeks 3 days 22 hours ago) and read 2581 times:

Hello, Is there any expert in ATR aircrafts? I cant understand the purpose of hot air bypass valve and turbine inlet control valve. These valve are part of the air conditioning system. Thank you very much for your answers and help

3 replies: All unread, jump to last

HAWK21M From India, joined Jan 2001, 31201 posts, RR: 58
Reply 1, posted (5 years 10 months 3 weeks 3 days 20 hours ago) and read 2566 times:

http://atr.flight1.net/forums/default.asp
Try this place for People working on the Type.
regds
MEL

Think of the brighter side!

Avt007 From Canada, joined Jul 2000, 2131 posts, RR: 5
Reply 2, posted (11 years 1 week 6 days 23 hours ago) and read 2556 times:

I'm not an ATR guy, but typically there is a valve that controls how much of the bleed air goes through the air cycle machine (turbine) and how much bypasses it, and then mixes with the ACM outlet air. This controls the temperature. More air through the ACM = lower temps, more bypassing the ACM= higher temperature. Hope this helps.

Radimz From Czech Republic, joined Dec 2006, 8 posts, RR: 0
Reply 3, posted (5 years 10 months 3 weeks 2 days 1 hour ago) and read 2555 times:

Thanks guys for yours help Smile