Chemstar motor Ex nA

Chemstar motor Ex nA

When compared to Ex nA industrial motors, this motor has been specifically developed for use in the chemical and petrochemical industry. This motor already fulfills the special requirements for this sector in the standard design. Further, even more individual and more precise adaptation is possible using practical options for applications in the chemical industry. A sector-specific design takes into account the requirements for use in hazardous Zone 2 applications. For instance, an extremely high quality paint finish and galvanized fan cowl protect against aggressive atmospheres. Anti-condensation heating is often no longer required – even for high levels of air humidity. Loher Chemstar motors operate perfectly from -55 °C up to +70 °C. When required, the motors can be equipped with corrosion-resistant stainless steel screws and bolts. Shaft seals in IP66 protect against water and dust. The degree of protection extends up to IP67.The enclosure is manufactured out of rugged gray cast iron and is therefore extremely resistant to corrosion, dampens vibration and has a high strength. Reinforced bearings and PTC thermistors – no problem. The adapted motors fulfill almost all user requirements and specifications. The Loher Chemstar Motor – guarantees maximum safety, highest availability and low operating costs.

Features

Options

  • Designed for ambient temperatures from -55 °C up to +70 °C
  • Larger connection system
  • Various fan materials
  • SPM nipple from FS 132
  • Regreasing system from FS 160 – SPM nipple from FS 132 – stainless steel screws / bolts
  • Additional terminal box from FS 132 – anti-condensation heating from FS 132 – condensation water drain from FS 132
  • PTC thermistor as protection only (TMS) up to and including FS 250
  • PTC thermistor as additional protection (TMS)
  • Also available for 60 Hz and pole-changing motors
  • All motors with insulating material class H
  • All motors are available with an electrical design according to “NEMA Standards Publication No MG1”
  • Flanged motors can be designed and implemented with flange and shaft end in accordance with NEMA

Availability

  • Fast track (own production line): Quickly available within just a few working days (for standard versions)
  • Accepted by Shell, DOW, BAYER, Statoil, BP, ABB Lumus, Technip, and many more
  • Complies with almost all applications and specifications
  • Parameter-optimized motors (adapted winding versions and rotors) achieve extremely high efficiencies with the best possible power factors (low operating costs)

Customer benefits

  • Accepted by Shell, DOW, BAYER, Statoil, BP, ABB Lumus, Technip, and many more
  • Complies with almost all applications and specifications
  • Parameter-optimized motors (adapted winding versions and rotors) achieve extremely high efficiencies with the best possible power factors (low operating costs)
  • Complete power range
  • Also suitable for converter-based variable-speed drives

Typical areas of application

  • Pumps
  • Compressors
  • Fans
  • Extruders
  • Mixers
Petvarols Valeria spol. s r. o.