[Outlet] positive, positive outlet uses air-conditioning equipment provided by Henderson Henderson air conditioning equipment. Texas Horizon Air Conditioning Equipment Co. (www.hxktsb.com) had been "Business League certification", please rest assured purchase through the entire network, click on the page check "Business League certification icon," the company authentication information. You can also click on the "Business League Service Icons" on this page directly contact our customer service! The air flow control valve is used for a wide range of mining, civil construction HVAC systems, air traffic precise adjustment of quality pressure delivery outlet is one of the key equipment to achieve a variety of environments under the control of ventilation modes. Its main feature is flexible operation, low noise, small amount of leakage, (sealed leakage <0.5%) Operating temperature region wide, reliable structure, safe and convenient. Dezhou, Shandong Hongxin Air Conditioning Equipment Co. staircase positive outlet for details stairs pressure delivery outlet products are usually manually open and manual reset, the product usually closed to open when pressure delivery outlet uses electrical signals to the control center DC24V specification There PYK-2-Ⅰ PYK-2-Ⅱ. Stairs outlet pressure control device using SD positive outlet, power DC24V, 0.5A. You can interlock with other devices based on user demand. Stairs pressure delivery outlet is usually installed in the front room and hallway or smoke windowless room exhaust system. Outlet pressure mounted the stairs before the smoke chamber, forming a positive front room when the fire broke out. Texas Air Conditioning Equipment Co., Ltd. Hongxin