Name: Pneumatic Conveying System
Brand: CYprocess
Availability: InStock

Question 1

When is dense phase preferred over dilute phase?

Accepted Answer

For abrasive or fragile products, long routes, and sites where the air supply is limited. Dense phase runs at low velocity and high solids loading, so pipe wear and particle breakage are reduced. Dilute phase stays more economical for short routes and multi-destination networks.

Question 2

What is the difference between pressure push and vacuum pull?

Accepted Answer

A positive-pressure line pushes product from one feed point to one or more destinations. A vacuum system pulls from several pick-up points into a single receiver, which suits collecting powder from scattered machines. The choice usually follows the plant layout rather than the material.

Question 3

What air sources are used?

Accepted Answer

Roots blowers cover dilute phase and continuous dense-phase duties, compressor packages serve high-pressure blow-tank systems, and vacuum pumps or blowers provide negative pressure for vacuum duty. Each package is selected from the duty point rather than from a preferred type.

Question 4

How is product breakage controlled?

Accepted Answer

By keeping conveying velocity as low as the duty allows, using dense phase where the product is fragile, and avoiding unnecessary bends. A material test confirms velocity, pressure and filter duty before the system is built, so the settings are proven rather than assumed.

Question 5

What process data are needed for a quotation?

Accepted Answer

Please provide material name and bulk density, particle size and abrasiveness, required rate in t/h, horizontal and vertical distances, number of feed and discharge points, and any hygiene, inert-gas or explosion requirements.

Question 6

Are the published distances of 200 m and 2000 m guaranteed?

Accepted Answer

No. About 200 m is the usual dilute-phase class, and about 2000 m is the dense-phase blow-tank class. The practical length is shorter when the line has vertical lifts, many bends, or a heavy or sticky powder. Send the route sketch with the enquiry. We size pressure, velocity and pipe diameter from that layout.

Question 7

When is a packaged vacuum conveyor enough, and when do I need this system?

Accepted Answer

A vacuum conveyor is the right starting point for a short, closed feed into a mixer, hopper or packer. This pneumatic conveying page is for a plant pipeline: longer distances, several destinations, or a pressure system feeding silos. If you are unsure, send the distance and the number of pick-up and drop points and we will say which scope applies.

Question 8

Can the conveying air be replaced with inert gas?

Accepted Answer

Yes, where the powder or the plant requires it. The overview designs use air or inert gas. State the gas, the reason, and any oxygen limit with the enquiry. We do not assume an inert-gas package on a standard air system.

Question 9

What reduces pipe wear on an abrasive powder?

Accepted Answer

Low-velocity dense phase, fewer bends, and lined or reinforced bends at the points that wear first. Dilute phase at higher velocity is usually the wrong choice for a sharp, abrasive solid on a long line. Particle size and abrasiveness should be in the enquiry so the pipe specification is part of the offer.

System types	Dilute phase / dense phase; pressure or vacuum
Velocity	About 1 - 40 m/s depending on mode and tuning
Capacity	Up to about 100 t/h dilute; higher in dense phase
Distance	To about 200 m dilute; to about 2000 m dense-phase blow tank
Line pressure	About +100 kPa dilute; up to +700 kPa blow tank; -60 kPa vacuum
Pipework	Carbon steel / stainless / lined options
Receiving	Filtered hoppers, cyclones and silos
Design basis	Material test + layout engineering
Routing	Pressure: one feed point to one or more destinations. Vacuum: several pick-up points into one receiver.
Wear options	Carbon steel, stainless steel, or lined pipe and bends where the powder is abrasive
How the distance figures should be read	About 200 m is the dilute-phase class and about 2000 m is the dense-phase blow-tank class. Vertical lifts and extra bends reduce the practical distance. These are not guaranteed lengths for every powder.

Pneumatic Conveying System

About Pneumatic Conveying System

Dilute phase and dense phase

Pressure push and vacuum pull

Where it fits in the process

Key Features

Typical Specifications

Suitable Materials

Chemical powders

Food powders

Battery materials

Minerals & cement

Plastics & granules

Ash & by-products

Industries Served

Chemical

Where this equipment is running

300 m Dense-Phase Transfer for LFP Powder with Ceramic Pipeline

Process Applications

Catalogs & Datasheets

Dilute-Phase Positive Pressure Conveying Datasheet

CYprocess Powder Handling Product Catalog (2026)