ProMinent Spectra - Progressive Cavity Pumps
The ProMinent Spectra pumps are available as block or bare shaft design and feature our special cardan joints. Capacities are from 1l/h to 450 m3/h.
Spectra Cardan joints are fully encapsulated by a robust rubber boot. Each end is retained by stainless steel reusable bands and sits in machined slots for maximum grip.The cardan joint is a proven heavy-duty universal type joint. This allows a simple construction without the inherent disadvantages of pin and other types of joint. Each arm of the joint pivots independently, thus giving a flexible robust joint that is small, simple and effective. Cardan joint
Cardan joint benefits
Protection of joint components from abrasive process fluids by therobust elastomer boot
Allows lubrication of the joint for life long applications
Strength of the joint is enhanced as the load is borne by twice the number of pin sections compared with single pin joints
Boot materials are available to match stator elastomers.
Casing, elastomers and rotating parts are available in a wide variety of materials and pressures up to 48 bar.
Other advantages with Spectra:
- High quality, competitively priced spares
- Optional base plate
- Quick delivery
- Easily dismantled
- Counter pressure up to 12 bar
- Stator made of FPM
- Rotor made of stainless steel Cr-Ni-Mo 17-12-2
- Floating ring seal
- Housing of 12/2 - 12/105 made of stainless steel
- Housing of 6/300 - 3/12 000 made of gray cast iron