Solutions · PVC Storage

Silos for PVC – S-PVC, E-PVC Powder & Dry Blend

PVC is handled as a fine powder – from suspension and emulsion PVC to dry blends ready for extrusion. PW Silo Systems designs aluminum and stainless steel silos for PVC powders, with dust collection, reliable discharge, and blending silos for consistent quality.

  • Aluminum & StainlessNo coated carbon steel
  • Up to 53,000 ft³PW PanelLine panel silos
  • 4 PVC ProductsTested in our lab
  • Every U.S. StateDelivery and installation

PVC Storage at a Glance

What is a PVC silo?

A PVC silo stores PVC resin powder or PVC dry blend between delivery, compounding, and extrusion or molding. It protects the powder from contamination and feeds it reliably to mixing and processing.

PVC powders are fine, can release dust, and do not always flow freely. PW Silo Systems combines storage silos, panel silos, blending silos, filtration, and discharge solutions into one system that fits your plant.

Why PVC Is Demanding

Six challenges in PVC storage – and how we solve them

Fine powders, discharge, and consistency decide how a PVC silo system is built.

Heap of fine white powder

Fine Powders & Dust

S-PVC, E-PVC, and PVC dry blends are fine powders. Filling and conveying release dust into the silo and its surroundings.

Our solution
Integrated filters and dust collectors – and explosion protection with rupture discs or explosion vents where your product requires it.
Your benefit
Cleaner surroundings and a system designed for your product.
Fine blue powder in a glass bowl

Discharge of Fine Powders

Fine PVC powders and dry blends can bridge and stop flowing out of the silo.

Our solution
PW FlowLine discharge solutions such as PW SpeedBlow and bin activators for poorly flowing powders.
Your benefit
Reliable feed into mixing and extrusion.
White plastic granules

Lot-to-Lot Variation

Production lots differ, and a silo filled in batches forms layers of different quality.

Our solution
PW BlendLine blending and homogenizing silos – with PW PipeBlend or PW CentralPipeBlend.
Your benefit
Consistent product quality for processing.
Heap of fine white powder

Product Purity

In coated carbon steel silos, flaking paint and rust particles can end up in the PVC.

Our solution
Silos built exclusively in aluminum and stainless steel – no coating as the only corrosion protection.
Your benefit
Lower contamination risk for your product.
White and black plastic pellets

Large Storage Volumes

Polymer production and compounding need large storage capacities – often more than a road-transportable silo can hold.

Our solution
Seal-welded PW PanelLine silos with up to 53,000 ft³, shipped in standard containers and assembled on site.
Your benefit
Large capacity without heavy-haul logistics.
Fine blue powder in a glass bowl

Resin and Additives

PVC resin, fillers such as chalk and calcium carbonate, and additives must not be mixed by accident.

Our solution
Dedicated silos or PW StoreLine multi-compartment silos that keep each product separate.
Your benefit
The right product in every mixing step.

Silo Materials

Aluminum or stainless steel PVC silos

We build silos exclusively in aluminum and stainless steel. Both materials offer high corrosion resistance and a long service life – without a coating as the only protection against corrosion.

Which of our two materials fits your PVC silo depends on your product, your process, and your site. We review it with you.

Compare Silo Materials

PVC Products

Silos for every PVC product

Products marked “Tested in our lab” are on our list of bulk materials. The others we review with you based on your material data before designing the silo.

Tested in our lab

PVC Silo

PVC, polyvinyl chloride

PVC is on our list of bulk materials tested in our lab.

Tested in our lab

S-PVC Silo

Suspension PVC (S-PVC)

Suspension PVC is on our tested list.

Tested in our lab

E-PVC Powder Silo

Emulsion PVC powder (E-PVC), paste PVC

Emulsion PVC powder is on our tested list. Discharge of this fine powder is planned with you.

Tested in our lab

PVC Dry Blend Silo

PVC dry blend, PVC premix

PVC dry blend is on our tested list. Concentric mass-flow discharge helps keep the blend together.

Review with us

PVC Compound Silo

PVC compound pellets

Plastic compound is on our tested list. PVC compound pellets we review with you.

Review with us

PVC Regrind Silo

PVC regrind, recycled PVC

Regrind and recyclates are on our tested list. Recycled PVC we review with you based on your material data.

Related products we store

Also tested in our lab:

  • Chalk
  • Calcium carbonate
  • Precipitated calcium carbonate (PCC)
  • Titanium dioxide
  • Plastic additives
  • Hydrotalcite

Other PVC products – let’s review them together

Send us your material data and we will review the right solution with you:

  • PVC stabilizers
  • Impact modifiers
  • CPVC powder
  • Wood-plastic composite (WPC) blends

Material Check

Is your PVC product on our tested list?

Type in your polymer or any other bulk material to see whether it has already been tested in our lab. The list covers 287 bulk materials.

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How it works

  1. 1Type the name of your bulk material – suggestions appear as you type.
  2. 2See right away whether it is on our list of tested materials.
  3. 3Not on the list? Send us your material details – we will review it with you.

Service in the U.S.

From planning to installation – across the U.S.

With more than 40 years of experience in silo engineering, we support your PVC silo project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.

View Our Services

  • Silo TransportDelivery to every U.S. state – by truck, ship, or rail.
  • Field AssemblyModular assembly on site for larger storage capacities.
  • Installation & SupervisionTrained, qualified installation personnel.
  • Site RelocationExisting silos documented, dismantled, and reassembled.
  • Custom EngineeringSilo systems engineered around your polymers and process.

FAQ

PVC silo FAQ

Answers to the questions plant managers, engineers, and buyers ask most often about storing PVC in silos.

Which PVC products can you store?

These PVC products are on our list of bulk materials tested in our lab:

  • PVC
  • Suspension PVC (S-PVC)
  • Emulsion PVC powder (E-PVC)
  • PVC dry blend

PVC compound pellets, recycled PVC, and PVC additives such as stabilizers we review with you based on your material data.

How do you keep fine PVC powder flowing?

PW FlowLine adds tailored discharge solutions for poorly flowing bulk solids – such as PW SpeedBlow air fluidization and bin activators. Which solution fits depends on your PVC product and your process. We review it with you.

Do PVC silos need explosion protection?

That depends on your product and your application. Where required, we supply explosion-protected silos designed in accordance with applicable codes and regulations, with rupture discs or explosion vents selected for your silo and your product. Filters and dust collectors are part of the system.

How do you even out lot-to-lot variation in PVC?

PW BlendLine silos blend and homogenize polymer pellets – with PW PipeBlend or PW CentralPipeBlend, depending on your product and throughput.

How large can a PVC silo be?

Seal-welded PW PanelLine silos reach capacities of up to 53,000 ft³. Their prefabricated components travel in standard containers or on curtain-side trucks – no oversize transport permits – and are assembled on site.

Aluminum or stainless steel – which is right for a PVC silo?

Both are possible. Which material fits your PVC silo depends on your product, your process, and your site. We review the options with you.

Do you deliver and install PVC silos in the U.S.?

Yes. We deliver to every U.S. state and support your project with silo transport, field assembly, silo installation and supervision, and site relocation of existing systems.

My polymers are not on your tested list. Can you still store them?

Very likely. Our silo systems are designed for nearly all free-flowing, granular, and powdered bulk solids. Send us your material details – kernel size, moisture, and how the product is filled and discharged – and we will review the right storage solution with you.

What information do you need for a PVC silo quote?

Tell us about your PVC grades, required storage capacity, how the silo is filled and discharged, and your site conditions. Based on this, we work out the material, silo type, and configuration with you and send you a detailed quote.

Your Project

Let's plan your PVC silo.

Whether you need a single PVC silo, a large panel silo, or a complete system with blending and process silos, tell us about your requirements. We'll develop a solution that fits your product, your process, and your site.

Send a Request Now

What Happens Next

  1. Share your requirements

    Tell us about your bulk material, your process, and your site conditions.

  2. Define the design together

    We work with you on material, silo type, and configuration – based on a bulk material analysis if needed.

  3. Receive your solution and quote

    You receive a custom-engineered solution with a detailed quote.