Aluminum air ventilation round back draught volume damper
* The air conditioning shutter referred to as non-return damper is in conformity with European standard.
* It comes with frame made of 0.6mm thick high quality GI sheet.It's blades are made of aluminium sheet with thickness of 0.3mm,which allows for easy opening after a small supply of air volume.This is why this volume control damper is stainless.
* The inner rubber seal is used for better tightness and for noise reduction.
* The valve opens when overpressure occurs and closes by means of spring when the pressure drops .
* The round shutter is applied to bread the supply and return air after the air equipment is turned off.The specially designed damper for air vloume control brings efficient smooth operation.
|Standard size (mm)||D1 (mm)||D2 ( mm)|
*Neutral packing: export standard carton.
*Unit packing: heat-shrink film packing for each product, plastic protect corner is optional.
*All of the productions are inspected carefully by QC before delivery.
*Normally 30 days production time after receiving the deposit.
*Urgent orders could be on priority.
*If order based on EXW terms, no MOQ is required.
*If order based on FOB or CNF or CIF terms, there’s MOQ for your options.
*Container orders will have more favorable price.
Q: Are you a manufacturer?
A: Yes, we are a professional manufacturer, and we have more than 15 years manufacturing and overseas sales experiences. Now we've sold our HVAC system air supply return ceiling diffuser to more than 26 countries!!!
Q: What's the MOQ?
A: The MOQ is 5000usd per order. Mixed supply ceiling diffuser is allowed.
Q: Can you provide free sample?
A: Yes, we could provide free sample of supply ceiling diffuser. But we don't pay for the delivery cost.
Q: What's the delivery time?
A: the delivery time is about 30days.
Q: what's the payment term?
A: T/T, L/C
Q: Can we buy under our own logo?
A: No problem.
Q: What is the quality?
A: we offer high quality products. VENTECH is famous for it's high quality and most competitive price!
Q: Can I be a VENTECH brand distributor?
A: Yes, you can. Pls contact us for more details.
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