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Industrial Pump Repair &
Reverse Engineering Experts

PWO Pump Parts

Since the early 1980’s Emnor has been making parts for the Canadian PWO pump line. For most of the PWO product range, Emnor manufactures:

  • Impellers
  • Casings
  • Stuffing boxes
  • Bearing housings
  • Bearing frames‍
  • Suction side plates
  • Shafts
  • Sleeves

The PWO pump has been in production for more than 60 years.  It is designed to handle pulp and fibrous solids in suspension, and is used mainly in pulp and paper mills. Canadian PWO have outstanding design features:

  • Top centreline discharge
  • Simple impeller adjustment
  • Fully open, non clog impellers
  • ‍Standardized design for inter changeable parts

Emnor offers PWO parts in all common alloys. Material upgrades for better wear or chemical resistance are also available.

Our Services

Industrial Pump Repair

Get back up and running and extend the life of your pumps - Even legacy equipment.
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Industrial Pump Parts

We’ve got connections. Let us find the parts you need when you need them most.
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Reverse Engineering

Experts use the latest technology used to replace rare and obsolete parts.
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Mechanical Engineering

In-house repair of most sizes and types of mechanical seals.
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Frequently Asked Questions

Do you manufacture titanium pump parts?

Emnor has been making titanium parts since the early 1980s. Since then we have manufactured many casings, impellers, cover plates, and sleeves. Please contact us to discuss your specific requirements.

What information is needed for a quote?

The seal size, type and materials should be provided. Digital photos are helpful.

What is the mechanical seal repair process?

Seals are dismantled, ultrasonic cleaned, and inspected. A scope of work and price are quoted. Once approved, the repair is started.

How long does it take to repair a seal?

Rush repair can be done same day. Complex, engineered seal repairs normally take a few weeks.

What is the lead time?

Lead time varies based on material requirement and if we have pre-existing tooling. Rush deliveries are handled on as required basis. Please contact us for more information.

What happens if I no longer have a sample, or the sample is heavily damaged?

Our experienced engineering department with the use of modern software and techniques can tackle even the most complex of designs. Please contact us for more information.

Which components are ideal for reverse engineering?

If the product has been discontinued and a sample is available reverse engineering can be a viable option. Ideal components are casings, impellers, and bearing frames. Please contact us for more information

What details are required for a quote?

Send us what information you have available along with some photos and basic dimensions. With this information Emnor can quote most components. If more details are required, one of our staff will contact you.

What information is needed about the part to get a quote?

If there is no model number or it's been worn away, no problem. Send us all the information you have available along with a snapshot of the part next to a tape measure and we'll get a quote back to you quickly.

What is the reverse engineering process?
  • You send us the used or worn out parts (if required, we can travel)
  • We create an extremely accurate 3D model of your part
  • Our engineers modify this model to a perfect fit that will perform like new
  • We fabricate the patterns in-house and procure castings from local foundries
  • Castings are inspected, machined, and pass a final QC inspection before they're shipped back to you.
Which materials can be reverse engineered?

Reverse engineering can be performed on machinery made from a wide range of alloys including bronzes, stainless, and specialty irons. If you're unsure if your part can be reverse engineered we would be happy to answer your questions and provide you with any available options.

Why is reverse engineering used?

Industrial technology is constantly evolving, but industrial pumps can stay in service for decades. By the time parts have become worn down or need to be replaced, the part is no longer commercially available. Replacing an entire pump is both prohibitively expensive and can cause major downtime and disruption. Reverse engineering allows us to make an exceptionally accurate copy of the original part. The new part is virtually identical to the original part's original state and will restore your pump without having the replace the entire thing.

How long does it take to reverse engineer a part?

Repair time varies depending on the part which needs to be reverse engineered. Contact us directly to get a time estimate.


How does reverse engineering work?

Our team will start by replicating your component using a FARO arm and Solidworks CAD. Next, our engineers will modify the model to ensure accurate fit and perform as a brand new OEM component. We will then fabricate the patterns in-house and procure castings from local foundries. Once the castings are inspected for quality, they enter our machine shop for machining and final QC inspection before shipping.

What information is needed to get a quote?

If possible, part numbers for the pump and seal, and the pump size. If you’re missing information, don’t worry. Send us what you know and a digital picture of the seal next to a tape measure and we’ll do the rest.

How long does it take to make a seal?

Repair or production time varies depending on your requirements. For an accurate time estimate, contact us directly.


Do you repair or replace seals?

We have the in-house capability for repairing most sizes and types of mechanical seals with surface grinding, lapping, and carbon face manufacturing. We stock over 1,000 new mechanical seals of both component and cartridge type with replacements for John Crane, Burgmann, Flowserve, and more.


What information do you need to get a quote?

If possible, provide us with the pump size, and model number and the OEM part number. If you don’t have that information, no problem. Send us some digital pictures of the pump and any area of concern with a tape measure held next to it. We’ll do the rest.


How do you Reverse Engineer new parts?

Our team will start by replicating your component using a FARO arm and Solidworks CAD. Next, our engineers will modify the model to ensure accurate fit and perform as a brand new OEM component. We will then fabricate the patterns in-house and procure castings from local foundries. Once the castings are inspected for quality, they enter our machine shop for machining and final QC inspection before shipping.


Do you carry discontinued parts?

We don’t carry discontinued parts but may be able to reverse engineer them. Contact us to find out how we take old, worn down parts and make new replacements.


Is there a warranty?

We bring the pumps that we repair to like-new specifications, and provide a one year warranty on all industrial pump repairs.


How long does it take to repair a pump?

The time it takes to repair a pump depends on the type of repair required and the condition of the pump. Contact us directly to get a time estimate on your repairs.


What kind of pumps do you repair?

We repair end suction, double suction, vertical, submersible, gear, positive displacement and multi-stage pumps.


What is the pump repair process?

We pick up, dismantle and inspect. A detailed damage report is sent, along with a scope of work and quotation. At Emnor, our work does not proceed until customer approval is received.


What information do you need to get a quote?

If possible, provide us with the pump size, and model number and the OEM part number. If you don’t have that information, no problem. Send us some digital pictures of the pump and any area of concern with a tape measure held next to it. We’ll do the rest.