Stainless steel chemical pumps for use in ATEX areas
CHEMSPIN ATEX twin screw pumps -
Flexible, universal, and safe for potentially explosive areas
CHEMSPIN twin screw pumps can also be used in ATEX zones 1, 2, 21, and 22. Depending on the pumping temperature, temperature classes T2 to T4 can be achieved. The contactless delivery principle is advantageous here. The CHEMSPIN ES with extended feed screws can also be supplied as an ATEX version.
The ATEX concept consists of the following measures:
- Use of pressure-resistant encapsulated motors for speed control
- Monitoring of surface temperatures by sensors on the pump housing and bearing bracket
- Ensuring seal temperatures through a monitored flushing system for double-acting mechanical seals
- Prevention of dry running through monitoring of single-acting mechanical seals
- Breakthrough couplings or spark suppression by couplings in oil bath
- Non-sparking contact protection for base plate units
- Grounding connections for potential equalization
Units that are safe-to-run dry or dry run safe can be supplied with the appropriate shaft seals.
| Technical parameters Sizes | ||||||
| Typ | CHEMSPIN 50 ATEX | CHEMSPIN 70 ATEX | CHEMSPIN 90 ATEX | CHEMSPIN 105 ATEX | CHEMSPIN 125 | |
|---|---|---|---|---|---|---|
| Max. flow rate | 20 m³/h | 40 m³/h | 100 m³/h | 180 m³/h | 300 m³/h | |
| Max. delivery pressure | 20 bar | 25 bar | 30 bar | 20 bar | 35 bar | |
| Max. ø solids | 16 (25) mm | 20 (30) mm | 28 (45) mm | 35 mm | 46 (64) mm | |
| General specifications | ||||||
| Suction capability | NPSHr > 0.5 m, suction heads of up to 9 m possible | |||||
| Viscosity | 0.5–1,000,000 mPa·s; higher values upon consultation | |||||
| Pumping temperature | –10 to 180 °C; higher temperatures available upon request | |||||
| Cleaning | Fully CIP-cleanable within the system | |||||
| Sterilization | SIP in a system using steam or hot water | |||||
| Parts in contact with the product | 1.4404, 1.4539, or 1.4462 (optional); other materials available upon request | |||||
| Elastomers | HNBR, FPM, EPDM, FFPM, FDA-approved, other elastomers available upon request | |||||
| Shaft seals | Single- and double-acting mechanical seals, with a cutting edge for sticky media to prevent start-up damage; single-acting, safe-to-run dry or dry run safe lip seal | |||||
| Pump orientation | horizontal, vertical, or lateral; INLINE versions available | |||||
| Connections | Various sizes and connection standards available upon request | |||||
| Design | Compact, robust modular design for all sizes, with a free shaft end for sizes 50, 70, 90, 105, and 125 | |||||
| Drives | Three-phase, gear, or servo motors (hygienic drives in stainless steel construction available as an option) | |||||
CHEMSPIN STANDARD
The CHEMSPIN is the basic model of the globally proven CHEMSPIN pump series made of high-quality stainless steel.
CHEMSPIN ES
Compact twin screw pump for chemical and industrial applications
CHEMSPIN ATEX
CHEMSPIN twin screw pumps can be used in ATEX zones 1, 2, 21 and 22. Depending on the delivery temperature, temperature classes T2 to T4 can be realized.
CHEMSPIN INLINE
The drop-in replacement solution for replacing other pump technologies. Choice of connections for easy changeover to twin screw pumps.
Adhesives
Adhesives mixed with solvents pose a high risk of cavitation in the conveying process. The challenge is that the slightly boiling solvents generally behave differently to the other components.
Underbody protection
Underbody protection is used to preserve vehicles and machines and constantly presents pump manufacturers with new challenges. However, gentle pumping of formulations with sensitive components such as glass beads is not a problem.
Tanks storage /farms
Filling, emptying or circulation pumping are recurring tasks for tank farm operators. Thanks to their high flexibility, screw pumps can handle a wide range of pumping tasks with just one series.
Paints and varnishes
Pulsation-free conveying and filling of colors can be a real challenge. Pigmented colors are usually extremely sensitive and must be conveyed particularly gently so that pigments are not destroyed.
Cleaning agent
Corrosive or abrasive liquids present pumps with major challenges. Especially when pumping cleaning agents, for example, solids can also be conveyed.
Personal advice
Fast and precise communication is our specialty. It is important to us to work together with our customers to find the perfect pump solution for their process. Because only a pump that is precisely matched to the process can be operated reliably and efficiently.
Give us a call at
or simply send us a quick inquiry using the form. Our team will usually get back to you within 72 hours.
