NES Blow-Through Rotary Airlock Valves keep pneumatic systems efficient by maintaining pressure and minimizing air loss during discharge. Their blow-through design uses air assist to reduce buildup and keep material moving smoothly. Standard models come in cast iron with optional metallurgies available such as stainless steel 304 and 316. Bore sizes range from 6” to 18” [150 mm to 450 mm] with six to ten-vane rotors available. Operating at 20–30 RPM, these valves handle up to 15 psi differential pressure and 482°F [250°C]. Replaceable wear parts and adjustable purge ports keep maintenance simple and downtime short. Ideal for food, chemical, pharmaceutical, plastics, and bulk material handling industries.
About NES Blow-Through Rotary Airlock Valves
Sub-Series: BT, BT-DCSR, BT-DCSR VER 2T, BT-SD, BT-SD-DCSR, BVT, BVT-DCSR, BVT-DCSR VER 2T, BVT-SD, BVT-SD-DCSR, NBT REC, NBT RND
Rotation Speed: 20-30 RPM
MOC: Cast Iron standard, Aluminum or Stainless Steel available
Design: DIN/ANSI/JIS Drilling Patterns available. 10 bar pressure shock resistance.
Operating Temperature: Up to 302 deg. F
Rotor: Standard 9-Blade, 6 to 10-blade Rotors available, U-Shaped Rotor Pocket available
Internal Coating: None standard, Chrome or Tungsten Carbide available
Accessories: Air Purge Glands, Inlet Restrictor, Zero Speed Sensor, Rotor Interference Sensor (RIS), High Temperature Modifications, Pressure Regulator, Flow Meter, ATEX/IECEX-Rated Electrical Components
Applications: Dairy, Food, Chemical, Plastics, Pet Food, Pharmaceutical, and other Dry Bulk Material Handling industries. Lean Phase Pneumatic Conveying in Pressure and Vacuum.
