PP Manual air valve , also called Anti-corrosion pp Manual air control valve, is the industrial plant, civil building ventilation, air conditioning and air purification works in the indispensable ventilation equipment, used to regulate the air duct, air conditioning can also be used for air conditioning and air conditioning.

2.Features 

• The wind valve material is PP and PVC, which is characterized by anti-corrosion, anti-aging,     price concessions, easy installation.
• The current manual air valve mold a molding, high strength, good sealing, smooth appearance,   low resistance. Its specifications are diameter 63mm, 75mm, 90mm, 110mm, 160mm, 200mm, 250mm, 315mmd. ThEdiameter of it is more than 355 can be customized.