Rotary Airlock Valves

Rotary Airlock Valves are critical components, essential for controlled material feeding or discharging in various process industries. RIECO’s valves are expertly designed to maintain pressure or vacuum in pneumatic conveying systems, ensuring perfect sealing and preventing air leakages across different pressure systems.

As an airlock manufacturer, RIECO offers an exclusive range of high-pressure designs, with a specialized Quick Cleaning model (LPR) ideal for applications requiring frequent material changes. For unique applications, such as suction carbon black processing, RIECO provides specially crafted models to meet specific industry needs. With years of design and manufacturing experience, RIECO is your trusted partner offering a wide and customizable range of airlock rotary valves tailored to customer needs.

Choose RIECO precision-machined airlock for innovation, quality, and reliability in your material handling systems. Available in various materials such as mild steel, stainless steel, cast iron, etc as per your requirement.

Types

Type Features Model ranges from Drives Application
Type AL Suitable for Differential Pressure
Up to 4000 mm WG.
150mm to 600mm = Casted
650mm to 900mm = Fabricated
Geared Motors – Direct Coupled or Through Chain and Sprocket Used as feeders, below Bag filters, Cyclones, ESP, Low pressure valves.
Type PN Suitable for Differential Pressure Up to 1 Kg/cm2 200mm to 450mm = Casted Motor with Gear Box Normally used for Abrasive material handling, wherein Pressure is applicable. E.g Pneumatic conveying etc.
Type LPR RF/W type/FPT Specially designed for handling of Plastic Chips with Differential Pressure Up to 1 Kg/cm2 From 150 mm to 450 mm Variable Speed Drives like Eddy Current Drives Frequency Converter Unit PP, HDPE, LDPE, Plastic chips application.
LPR/ –
LPR-Quick Cleaning
Suitable for Differential Pressure 1 Kg/cm2 and quick cleaning type for easy cleaning. With Seal purging arrangement for protecting the end seals from getting worn out. From 160mm to 400mm = Casted Chain drive-Motor with gear box Suitable for Food, Pharma, Chemical industries, Dairy industries. Good for soft material and where cleaning is a necessity.
LPR blow through For Pneumatic conveying application with differential pressure of 1kg/cm2 200 mm to 450 mm   Pneumatic conveying application
AL-SPL Carbon black Various discharges, pneumatic conveying, very low bulk density handling with special design, Special seals, specific clearance 200 mm to 900 mm   Specially designed for carbon black industries

Features

  • ATEX / CE Certified
  • Various combinations of Rotor Vanes to suit applications, like shallow, helical ,6 vane, pocket filled etc
  • Precision Engineered to provide minimum clearance between Rotor and Housing and thus minimum leakage
  • Available in circular as well as in square flanges
  • Up to 600mm Ø Valves are available in Cast Construction
  • Available in fixed blade and adjustable/replaceable blade type
  • Less clearance valves to ensure no powder degradation while discharging
  • Available in Closed End and Open-End Rotor Design.
  • Available in Helical Rotor design for PP, HDPE and various plastic chips application
  • Available with OSHA standard guard design
  • High discharge capacities depending upon bulk density
  • Control feed, regulated feed by regulating speed of rotor by using VFD in motor
  • Labyrinth and mechanical seal option available
  • Available in direct coupled and Chain driven arrangements

    Application

  • Discharge Point of Silos
  • Discharge Point of Cyclones/Bag Filters
  • Regulated Discharge
  • Feeding in Pressure/Vacuum Type Pneumatic Conveying Systems

    Material of construction

  • Mild steel /Cast Iron
  • Alloy Cast Iron (with hardness up to 350 BHN)
  • SS 304 / SS304L (with polish and mirror finish available as optional)
  • SS 316 / SS316L (with polish and mirror finish available as optional)

Why Rieco?

As your global partner, we fully immerse ourselves
in your process challenges.
48 +
Years of Experience
40 +
Countries
6000 +
Successful Installations
300 +
Strong Team
5 +
Global Partnerships
3
Manufacturing Facilities
Global Presence
We’re there for you
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