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Description
Blow-through rotary airlock valve - Dosing of powder for feeding pneumatic conveying systems
15 models: flow rate from 5 to 38 liters/rev.
Cast iron, 304, 316L stainless construction
These rotary airlock valves, also known as blow through feeders, are designed for controlling the discharge rate of material from silos and hoppers by gravity or in pneumatic conveying (vacuum or pressure) lines.
Rotary airlock valves are designed for metering the feed of powdered or granular material in silos, hoppers, pneumatic conveying systems, bag filters and cyclones in powder handling processes.
Equipment advantages
- Compact, heavy duty construction
- ATEX, zone 22 version available
- Rotor surface treatment chrome-plating, nickel-plating, hardened blades
- Frame: cast iron or AISI 304/316 stainless steel
- Fixed speed of the rotor : 10, 20, 30 rev./min.
- Variable speed of the rotor : 4 - 22 rev./min.
- Frame surface treatment chrome-plating, nickel-plating, Teflon
- Motors: direct through a reducer, through a coaxial varidrive with chain transmission or no motor (bare shaft)
Media
View our equipment in photos
Volumetric screw feeder bulk materials handling
Adjustment of rotor blades according to the properties of each bulk material.
Blow trough rotary airlock valve under hopper
The rotary valves with lateral flow control provide powder dosing for feeding the pneumatic conveying system.
Blow trough rotary valve
Blow trough rotary valves are designed for cell extraction, gravity flow or pneumatic conveying applications.
Rotary airlock valve Palamatic Process
Palamatic Process rotary valves have been designed for use in the food and feed, chemical and pharmaceutical industries.
Rotary airlock valve
Body in cast iron or stainless steel AISI 304L/316L.
Rotary airlock valve salt
The blow through rotary valves are specially designed for pneumatic conveying applications. They can be mounted in line on the conveying pipe.
Rotary airlock valve Palamatic Process
The advantage of the rotary locks with lateral passage is that they can handle sticky powdery products.
Rotary airlock valve range
The passage of the conveying air through the airlock ensures that the rotor is cleaned by removing the adhered particles from the walls.
Sugar industry application
Production line for confectionery products.
Blow trough rotary airlock valve
Dense phase pneumatic conveying with integrated stainless steel hopper and dosing system.
Sugar dosing
Sugar metering for big bag packing.
Features
Technical specification
Two compartments are filled with product through the inlet at the top of the valve. After less than a half turn, the rotor discharges the product into the current generated by the velocity of air that passes through the lower part of the rotary airlock valve.
Inlet and outlet flanges are used to install the rotary valve to the pneumatic piping. The in-line connection of the rotary valve on the pneumatic piping provides the speed setting and feed rate of the bulk material to be processed. A degassing line may be connected to the valve body to balance the volumes and ensure optimal filling.
- Rotor: integral with rounded blades, with flaps (Viton®, Vulkolan and Teflon®)
- Fixed speed of the rotor : 10, 20, 30 rev./min.
- Variable speed of the rotor : 4 - 22 rev./min.
| Models | RVSC05 | RVSC10 | RVSC15 | RVSC20 | RVSC35 | RVSC80 |
|---|---|---|---|---|---|---|
| Capacity / liters/revolution | 5 | 9 | 14 | 20 | 38 | 78 |
| Flange section | 166x122 | 135x238 | 148x276 | 196x337 | 240x470 | 284x569 |
| Speed of the rotary valve rev./min. | Flow according to the associated load factor | ||
|---|---|---|---|
| Very fluid | Not very fluid | Not fluid | |
| 10 | 90% | 85% | 80% |
| 20 | 80% | 75% | 70% |
| 30 | 70% | 65% | 60% |
Options
Available options
-
Atex
Atex zone 22 version available
-
stainless steel construction
Cast iron or 304 / 316L stainless steel construction, chrome-plated, nickel-plated, or teflon surface
-
Rotary airlock easyclean
Hygienic rotary airlock
Case studies
CASE STUDIES WITH THIS EQUIPMENT
Bulk truck loading
Processed powder: polypropylene - Bulk truck loading - This powder handling line is designed to feed granules into trucks at a high rate of 25 t/h. The production requirement is to create neither...Chemical
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Loading silos with sugar
Processed materials: crystal sugar - Loading silos with sugar - A container tipper is used to feed the high pressure pneumatic conveying network to feed 2 silos of 50 tons.Food and Animal Feed
