Pressure switches for compressors

High-performance pressure switch for switching motors (Compressor version), available in various versions and with optional accessories. The tried and tested MDR series represent reliability and competence. The high quality of pressure controls is continuously confirmed in extensive tests, for example lifetime and vibration tests.

The high-performance pressure switch for switching motors (compressors and pumps), available in various versions and with optional accessories. The pressure switch has been successfully tested and certified by the KEMA KEUR Test and Certification Institute.

The high-performance pressure switch for the North American market - for switching motors (compressors and pumps), available in various versions and with optional accessories. The pressure switch MDR 21 has been certified by the KEMA KEUR Test and Certification Institute, and also acc. to UL and CSA standards. The lateral cable entry provides a larger connecting compartment.

The high-performance pressure switch for switching motors (compressors and pumps), available in various versions and with optional accessories. Optionally, the pressure switch is available with an overload relay. The pressure switch MDR 3 has been certified by the KEMA KEUR Test and Certification Institute, and also acc. to UL and CSA standards, for use e.g. in the North American market.

The high-performance pressure switch for switching motors (compressors and pumps), available in various versions and with optional accessories, whereby the "S" stands for the standard version.

The high-performance pressure switch for switching motors (compressors and pumps). Version "SD" of the MDR 4 is fitted as standard with a transparent cover and a scale.

The high-performance pressure switch for switching motors (compressors and pumps). Version "SU" of the MDR 4 is fitted with an "NO" contact function.

The high-performance pressure switch for switching motors (compressors and pumps), available in various versions and with optional accessories. Optionally, the pressure switch is available with an overload relay. Pressure adjustment is possible without tools.

Control pressure switch in standard version with die-cast aluminium pressure connector and NBR diaphragm, for use with oil, water, air, etc., fitted with industrial screw clamp, optional accessories are available. Pressure difference adjustment (standard), also available with gold-plated contacts.

Control pressure switch as high-pressure version up to 250 bar, with plastic piston as pressure sensor element, and stainless steel coupling, used e.g. for oil, water, air, fitted with industrial screw clamp, optional accessories possible. Pressure difference adjustment (standard), also available with gold-plated contacts.

Control pressure switch as DNV (GL) version for use in shipbuilding and for seaworthy applications. These pressure switches are used mainly in marine engineering, particularly in shipbuilding and plant construction, and have GL approval (Germanischer Lloyd) - DNV (Det Norske Veritas).

Control pressure switch as UL version (standard version, as high-pressure switch, and for vacuum monitoring), specially designed for the North American market, and approved by Underwriters Laboratories Inc. (UL).

Control pressure switch for vacuum monitoring applications. These pressure switches can be used as vacuum switches for compressible media (gases), but also for liquids in normal pressure ranges. Primarily, they have been designed for use in the rough vacuum area (technical vacuum), and are featured by small pressure differences and high switching precision.

Control pressure switch fitted with Viton® diaphragm for increased media resistance. Fitted with a die-cast aluminium pressure connector, the pressure switches are approved up to ≤32 bar. Fitted with industrial screw clamp and pressure difference adjustment (standard).

Control pressure switch with 2 change-over contacts, fitted with a die-cast aluminium pressure connector and NBR diaphragm. Primarily for use in oil, water and air, the version with 2 change-over contacts permits even more flexible applications.

Control pressure switch with Reset function (Hmin / Hmax, and Htro), with die-cast aluminium pressure connector and NBR diaphragm, for use in oil, water and air, etc., application e.g. for dry-run protection.

Control pressure switch with fixed pressure setting. Thanks to the compact design, the standardised device coupling, and the high IP protection class, the pressure switch is particularly suited for use in series production of plants and therefore a switch for industrial customers.

The pressure switches are used, among other things, in heat pumps.

Control pressure switch for oil, water and air. Two-pole version with 1 NO and 1 NC contact, with pressure difference adjustment (standard), fitted with a die-cast aluminium pressure connector and CR diaphragm.

Control pressure switch for oil, water and air. Single-pole version with 1 change-over contact, with pressure difference adjustment (standard), fitted with a die-cast aluminium pressure connector and CR diaphragm. Pressure adjustment is possible without tools.

Used as high-performance pressure switch for direct operation of motors, for price-sensitive applications with limited installation space. Thanks to its compact design and fixed pressure setting, the patented mechanical mini pressure switch MDR-8 with NC contact is the ideal choice for series production.

The electronic pressure switch is suitable for a wide range of industrial and technical processes, e.g. for pressure monitoring and control of compressors and pumps, in mechanical engineering and in plant construction. The MDR-2i is fitted with a coupling for an external pressure relief valve and a 3-digit LCD display with various functions such as e.g. operating hours counter, alarm output, etc. Optionally, the pressure switch can be fitted with an (integral) pressure relief valve.

Electronic pressure switch with integrated relative pressure sensor for panel board mounting. The device evaluates the applied pressure. On exceeding an upper threshold the relay is deactivated; when falling below a lower threshold the relay is activated again. Both thresholds are adjustable.

As soon as several compressors are installed in a compressed air network, it is advisable to add a higher-level base load changeover controller for regulation. Condor GLW controls have been used to monitor up to 4 compressors in primary load set up. The GLW 4 evaluates the mains pressure and rotates the connected compressors on a time-dependent basis.