CPDR and RCNKu types differ from each other in their detailed design and manufacture. Materials and sealings are the same. Conveyance requirements can be flexibly and economically met with a wide range of 21 different pump sizes with capacities of up to 2,500 m3/h.
The pump size and material will be specifically selected to meet your requirements. Flow -optimised hydraulic systems ensure efficiency and economy. Rheinhütte plastic pumps are available in six different materials.
Rheinhütte plastic pumps are standard pumps and can therefore replace other standard chemical pumps of the same size. We can also offer you customised fluid conveyance equipment outside the standard which is designed for the particular conveyance requirement – increased efficiency with the same pump size.
Design: horizontal, single-stage
Construction: back-pull-out design according to ISO 2858
Casing design: single volute casing
Bearing lubrication: oil or grease lubrication
Installation versions: Base frame welded or base plate cast
Temperature range: -20 °C to +60 °C (-4 °F to +140 °F)
Max. solids content: approx. 5 % (with free flow design approx. 30 %)
Drain of volute casing
Flushing of the mechanical seal in different versions
Temperature and vibration monitoring
Equipment health monitoring with patented i-Alert®2
Flange processing in line with international standards
Chemical waste water
Flue gas scrubber (waste incinerators)
The process-oriented design enables wearing parts to be quickly and easily replaced.
Large volumes of solids, gaseous components, fibres and gross contaminants prohibit the use of rotary pumps. But vortex pumps meet this conveyance challenge without problems. The impeller is only indirectly involved in accelerating the medium, leading to a corresponding reduction in wear. Toleration of even gaseous components in the fluid to be pumped is signi-ficantly enhanced. Large passage widths allow more operating reliability.
Seals optimised for their flow and wear characteristics enable the pumps to convey media containing up to 5 % solids.
Mechanical seal concept that is suitable for crystallizing, hot or solids bearing media. An optimised design ensures that seals can be easily installed and removed and are economic in use.
A robust bearing bracket ensures only minor deflection on the shaft and a long working life for the roller bearings and the mechanical seal – even when working at the limit of its capability.
Optimal for aggressive media through customized design.
CPDR with single mechanical seal (CS)
The design of pump and mechanical seal must be matched to a particular measure. Flow-optimised free-spaces and channels must precisely fit the seals and individual flush-ing concepts. Only by taking this approach is it possible to avoid the adverse effects of large volumes of solids or crystallising or adhesive media on the seal. The advanced CS (single-acting) and CST (double-acting) seal designs of the Rheinhütte plastic pumps make operations safe and maintenance simple – for an economic standardised chemical pump. Various flushing variants are available as an option.
RCNKu with double mechanical seal (CST)
Durable through coordinated design
The design of the seal relocates all susceptible compo-nents to a protected stationary position – on the outside. Thus springs and O-rings can operate in the best possi-ble environment free from the effect of the medium and the rotation of the shaft.
Service-friendly due to limited number of parts The bearing ring and the counter ring, the main com-ponents of the mechanical shaft seal are identical in construction. They can be purchased separately, this avoiding confusion during maintenance. The design of the seal always causes the optimal closing pressure to act on both rings during operation, making the seals highly effective and the wear slight.
Rheinhütte material experts help to choose the right material. Plastics are in particular demand in applications with high corrosion resistance requirements, in order to ensure a long pump life cycle.
PP – Polypropylene
This plastic is particularly suitable for simple, common applications. It offers outstanding performance at tem-peratures from 0 to 100 °C. PP has proven its worth in acids, alkalis and saline solutions as well as in hydrochlo-ric acid pickling.
PE 1000 (UHMWPE) – Polyethylene
The outstanding feature of this high molecular weight polymer is its resistance to wear in case of solids in the pumped medium. There is also a wide range of corrosion resistance options.
In the temperature range from -50 to +80 °C, PE 1000 is in many cases an alternative to stainless steels.
PE 1000R – Polyethylene
PE 1000R is a further development of the standard poly- ethylene PE 1000 with wear-minimising additives for up to 30 % higher durability – for use in highly abrasive sus- pensions with process-related critical solids content. The material can be used at temperatures from -50 to +80 °C.
PVDF – Polyvinylidene flüoride
The partial fluorination of this polymer increases its chemical resistance many times over. PVDF is resistant to most solvents, acids and oxidants. PVDF is an optimum material for many applications in the chemical industry for temperatures from -20 to 130 °C.
PTFE – Polytetrafluoroethylene
PTFE shows an outstanding resistance against nearly all organic and inorganic media over a wide temperature range. Centrifugal pumps made of PTFE can be used between -50 °C and 180 °C.
Polymercarbid (Mineral casting)
A corrosion- and wear-resistant material offering signif-icantly longer service life and thus lower life cycle costs than conventional materials, especially in chemically aggressive media. Especially when plastics are required in abrasive media, polymer carbide can lead to longer pump life.
Metrans Makina is the only authorized Rheinhütte distributor and service provider in Turkey.