Upgrading Pumps With Composite Wear Components

Part 1: Minimize the Risk of Pump Seizure Welcome to our series on upgrading pumps with composite materials. Over the next few months, we’ll cover the basics of why and how to use composite materials, specifically DuPont™ Vespel® CR-6100, to make your pumps more reliable, efficient, and safe. Metal Parts Seize Centrifugal pumps contain contact Read the full article…

Amine Stripping Pump Case Study

Vespel® CR-6100 with the PERF-Seal® design survived where metal parts failed In case you missed it… The October 2018 issue of Hydrocarbon Processing featured a case study of Vespel® CR-6100 with the PERF-Seal®  design installed in a 2.7 MW amine stripping pump. 2-Stage, 2.7MW, 4500 RPM Amine Stripping Pump Amine pumps upgraded for improved operations and reliability An Read the full article…

Catacarb® Pump Case Study

A single installation of Vespel® CR-6100 saved a lot of money and troubles. Several years ago, a refinery upgraded a Catacarb® pump with Vespel® CR-6100 case rings. The pump was a single-stage, between bearings, double suction pump. Catacarb® is a mixture of potassium carbonate and other chemicals which is used to strip gases such as CO2 Read the full article…

Reformer Feed Pump Case Study

A long-term success story Almost 10 years ago, a refinery in Europe upgraded their Reformer Feed pumps to DuPont™ Vespel® CR-6100. Last month, we checked in to see how the pumps are running. The Application The Reformer Feed pumps are 10-stage, axially-split, between-bearings pumps (API Type BB3), running at 2950 RPM. The product is naphtha at Read the full article…

Diesel Charge Pump Case Study

DuPont™ Vespel® CR-6100 helps the pump survive and keep pumping. The Diesel Charge Pump A refinery in North America experienced recurring issues with their diesel charge pumps. The pumps provide feed into the refinery HDS unit. Loss of feed to the unit can result in reduced refinery production and significant losses. The refinery has 3 total pumps Read the full article…

VibVue–Visualizing Vibration

What if You Could Actually SEE Vibration? Background Mechanical Solutions, Inc. is well-known for their ability to accurately diagnose difficult rotating machinery problems, AND to provide an engineered, implementable solution. They also have 22 years in solving problems using high-speed video. Recently, those two threads came together to bring the VibVue™ system to market through Read the full article…

14 Reasons to Reduce Wear Ring Clearance

Use DuPont™ Vespel® CR-6100 to reduce the clearance in your pumps and improve pump reliability and efficiency. Vespel CR-6100 Review A couple weeks ago, we looked at all of the negative consequences from increasing the wear part clearance in you pumps: wear rings, inter-stage rings, throttle bushings, and center bushings. In the past, increasing the clearance was a typical Read the full article…

14 Reasons to Avoid Increased Wear Ring Clearance

If you increase the clearance, the long-term reliability and efficiency of the pump will suffer. Happy Summer! We hope you have had a chance to enjoy your summer holidays. From New Orleans to Narvik, it’s hot out there, so be safe, and wear sunscreen. In our messages, we frequently highlight how Vespel® CR-6100 does not seize and Read the full article…

Make Your Vertical Pump Shaft Bearings Last Longer

DuPont™ Vespel CR-6100 resists seizing, can run dry, has high impact resistance, and a low wear rate for a long life under a wide range of process conditions. Vertically Suspended Pumps Vertically suspended pump types (API types VS1-VS7) use long, flexible shafts which are supported by a series of product-lubricated shaft bearings. Vespel® CR-6100 is a Read the full article…

The Final Installation Steps: Length and Clearance

Setting the final dimensions of your DuPont™ Vespel CR-6100 component Review We have discussed how to measure your pump, prepare the metal parts, and establish the press fit for your Vespel® CR-6100 installation. The final two dimensions you need to establish are the part length and the clearance. The Part Length Vespel® CR-6100 has an extremely Read the full article…