Kriwan

Refrigerant compressors

Refrigeration and cooling are required in industry, retail, and commerce. 

 

 

 

 

Refrigeration and cooling are required in industry, retail, and commerce.

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Precision in the production of high-quality goods is dependent, among other things, on constant ambient conditions, such as temperature and air humidity in fully air-conditioned production and measurement rooms. Reliable production also requires that machines and systems are cooled, which means that gases, refrigerants, lubricants, and other fluids have to be kept at the right temperature. This is especially important in function-critical processes that generally may not be shut down.

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Natural refrigerants are becoming an ever more important alternative in view of environmental protection, climate change, F-gas regulations, and rising energy prices. Such refrigerants place particular, and often higher, demands on systems and components.

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With its new generation of INT69 Diagnosis, Kriwan has made its flagship protection module even more powerful.

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Motor protection based on PTC sensors is an effective and reliable way of protecting against thermal overload in electrical machinery.

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KRIWAN PTC+ Sensors
Temperature Sensor Technoloty with Performance Plus for Protection of Equipment and Systems

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Control at the highest technical level
The INT280 oil level regulator complements the KRIWAN system solutions for efficient and safe oil management in the refrigerant circuit.

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KRIWAN optical level monitoring devices protect refrigerant compressors in the event of leakage, oil imbalance in the refrigerant circuit or pumps from running dry.

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Easy Integration
The use of standardized communication interfaces turns the KRIWAN Diagnosis system into a comprehensive source of data about the refrigeration system.

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Development partner and system supplier

Ever since Kriwan was founded it has focused on the protection of machinery and systems. To this end, it tailors specialized protection and control electronics, as well as sensors, to particular machines, systems, and applications.

All of Kriwan’s products are characterized by the company’s renowned quality and reliability in conjunction with a high level of innovation. The company is especially careful to perform comprehensive tests based on industry and in-house or factory standards – tests to which all Kriwan products are subjected before approval and during the production process. Kriwan cooperates in this regard with an independent test center that always uses the latest testing machinery and that is able and authorized to test in all of the relevant ambient conditions.

Kriwan’s recipe for success is to develop and manufacture everything itself and invest consistently in human resources – especially in its engineering and test center.

 

The benefits for you:

  • Comprehensive development, project management, application, and production expertise for electronics and software used in industrial applications
  • Expertise in protection, control, and regulation equipment
  • EMC expertise
  • Independent testing center
  • If required, KRIWAN can produce components developed jointly (long term or short term, for ramp-up purposes)

INT69 Diagnose

compressor protection with diagnostic function

  • temperature monitoring hot gas
  • monitoring frequency of operation
  • monitoring oil differential pressure
  • phase monitor
  • locking bridge
  • situational reaction
  • diagnostic data
  • Non-volatile memory