News Archive

Issue 12 December 08

Choose the Rotor for your application
The choice of rotor for your progressing cavity pump can be fine-tuned to your application. The benefits are: longer pump service life, and optimum pump performance, even under arduous duty and installation conditions.

What choice as a customer do you have?
Rotor Geometry-
• Standard 1:2 geometry. Suitable for light to medium duty conditions
• Ultra-Pro 2:3 geometry. Offers a steeper angled rotor, larger cavity and a longer seal line per stage. Gives you the opportunity to run your pump slower. The result is extended service intervals

Rotor Size-
• Standard - Suitable for fluid pumping temperatures up to 60 deg c
• Undersized - Suitable for pumping fluids above 60 deg c. Expansion of chiefly the elastomeric stator means the rotor is reduced in size to ensure optimum transitional fit, performance and minimum wear at elevated temperatures

Rotor Coatings-
• Chromed - Chrome provides a hard wear resistance surface to abrasives
• Double chromed - Simply a double layer of chrome that further extends the rotor’s life against abrasive wear
• Non-chromed - Provides material choice for pumped fluids that are not compatible with Chrome. Brine, for example.

If you believe your progressing cavity pump can be further customised to your application please do not hesitate to call and we will happily discuss the options available to you. Tel +44 (0)23 80760000 or email rmsales@robn.com

New Distributor Appointment
C&A Pumps Ltd has agreed to represent Robbins & Myers Ltd in Northern England.

Their contact details are-

C&A Pumps Ltd
Bowburn North Industrial Estate
Bowburn
Co. Durham
DH6 5PF

Tel 0191 3773000
Web www.capumps.com

David Johnson
Sales Manager, UK, Europe, Middle East and Africa.