Bock F Compressors

The F model series offers modern open compressors for external drive (via V-belt or clutch). Force transmission is by a form-fitting shaft connection. Nearly all drive-related requirements are possible.
The compressor design is very compact, robust and easy to handle, naturally with oil pump lubrication.

Special features:

• Driven via V-belt or direct clutch.
• Suitable for conventional or chlorine-free HFC refrigerants

More information about the F type compressors (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link:

VAP compressor selection F compressors

New open type compressor series: F76

Replaces compressors types F14 + F16

Optimized open type compressor series: F88

mexxFlow® 2.0 valve plate system

More refrigerating capacity and lower power consumption – this is the motto of the mexxFlow valve plate, which forms the heart of the new Bock compressor generations for higher capacities. In order to increase the energy efficiency of reciprocating compressors, manufacturers has always been focused on the valve plate system. At higher capacities the standard valve plates reach their limits in terms of efficiency. mexxFlow was successful in increasing the efficiency of its compressors by up to 20 %. This success was achieved through a flow-optimized double ring fin construction of the valve plate in combination with a specially adapted cylinder head.

Bock was successful in increasing the efficiency of its compressors by around 15 % thanks to a flow-optimized double ring fin construction of the valve plate in combination with a cylinder head, which is specially adapted to the valve plate. Thus, open type as well as semi-hermetic commercial Bock compressors achieve new records in terms of efficiency.

Special features of the mexxFlow valve plate:

• Valve plate with highly efficient double ring fins
• Flow optimized system of valve plate and cylinder head

With the knowledge gained from practical experience over the past decade, we have consistently improved and further developed the mexxFlow plate system.
The result: mexxFlow 2.0.

The second generation shows even greater resistance with a consistent high efficiency. This makes it suitable for the even toughest requirements of various applications.

Bock F NH3 Compressors

As an alternative to the established refrigerating compressors in the F series, Bock also offers the F NH3 series for operation with ammonia (R717). The compressors are specially intended for the small to medium capacity range.

Note: As of 2022, these NH3 compressors are no longer in serial production. However they can be supplied as a service option on request. A serial number must be provided, and the chart can be found in the VAP as shown below.

More information about the F NH3 compressors (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link:

VAP compressor selection F NH3 compressors

Bock F Compressors – Former Types