Our technical specialists have many years of experience in the industry and refurbish almost every common mechanical seal, whatever the brand, type or seal face combination. We restore your mechanical seal as good as new. Can a mechanical seal no longer be refurbished? Then we’ll send you a quote for a replacement.
How we refurbish a mechanical seal
- Inventory of the incoming product
- (Ultrasonic) cleaning
- Inspection and analysis of the seal faces and other components
- Quote and consultation with you
- Order confirmation and gathering the materials needed
- Carrying out the necessary machining
- Preparing for shipment
- Delivery and, if required, installation on site
1. Inventory
Does a seal need replacing, urgently or preventively? Simply send the seal to our workshop. We’re also happy to visit you to assess the situation together and collect the products to be replaced. If you like, we can take the complete pump with us for refurbishment too.
2. (Ultrasonic) cleaning
Before we start the inspection, we clean the seal thoroughly and spray it clean.
After removing the larger product residues by hand, we dismantle the seal and clean it in an ultrasonic immersion bath. We remove corrosion or stubborn dirt with glass bead blasting.
3. Mechanical seal inspection and analysis
Qseals assesses whether refurbishing the mechanical seal is worthwhile. Among other things, we inspect the seal for:
- height and condition of the seal faces;
- wear and damage to the O-ring and gasket surfaces;
- length and tension of the springs;
- roundness and dimensions of the shaft sleeve and clamping rings;
- contact surfaces and threads;
- flow through the barrier, flush and quench connections;
- overall condition of the pins;
- drive pins and spacers of the seal.
4. Quote
We report our findings, and based on them you’ll receive a quote for refurbishing your mechanical seal, including the pump and/or article number. We record the details of every mechanical seal we supply or refurbish in our database. That means we can quickly help you with the delivery of a new mechanical seal, even while the old seal is still fitted.
5. Order confirmation
Happy with the quote? Then we gather the materials needed from our warehouse. We keep pre-machined parts and the most common materials in stock, which keeps lead times short.
6. Mechanical seal machining
Our well-equipped workshop in Wezep has everything we need to carry out all machining in-house. Our lathe has a 105 mm bore, so we can also turn shaft sleeves with a large diameter. We do milling on our three-axis EMCO milling machine.
We lap the seal faces (precision grinding and polishing the face perfectly flat) on one of our lapping machines. These machines have different lapping plates, so we can achieve the finish you specify.
7. Shipping the seal
After assembly, we pack the seal securely and prepare it for shipment. We label the packaging clearly to suit your needs, for example with the pump type, pump number or designation, alongside the article or serial number of the product itself.
8. Delivery and installation on site
We process several shipments a day from the DHL pickup point at Qseals, so you can count on fast delivery, worldwide too. Our team can also install the seal on site and explain installation and maintenance to your maintenance department. Read more about installation on site or the Qseals mechanical seals training.
Want Qseals to refurbish your mechanical seal?
Want to know whether your mechanical seal can be refurbished? Contact us or email [email protected]. Send us your seal and we’ll assess whether refurbishment is possible. If it isn’t, we’ll send you a no-obligation quote for a replacement seal.
