Type Selection

Model

The technical parameters, which are specified by customers, vary so widely that a compressor request cannot be met by selecting from a standard set of models.

Therefore, we employ a system of mechanical assembly technique by using standard crankcases (piston forces from 15 to 100 kN, stroke length from 60 to 200 mm), standard diaphragm heads for different stroke displacements and discharge stages, selected suction and discharge valves, and other approved components for the hydraulic part.

This system allows us to offer an individual compressor, meeting the technical specifications and also keeping to the standard principle as closely as possible.

For the design of a compressor, the technical gas data have to be carefully considered: type of gas, gas weight, compression ratio, temperatures, gas factors partly showing considerable deviations from perfect gas condition as per the Boyle-Mariotte law.

For the design of a gas-system, the specific gas factor has to be considered when determining the compressor capacity.

Types

Diaphragm Compressor MKZ 560-15

For a PTA-plant

1 valve and instrumentation panel with capacity control valve for each compressor.
  Model MKZ MKZ 560-15
Suction capacity 490 m3 / h (VN)
Type of gas H2
Suction pressure 410 psi  (28 bar abs)
Discharge pressure 1.410 psi (97 bar abs)
    Diaphragm Compressor MKZ 560-15. Valve and Instrumentation panel For a PTA-plant
1 valve and instrumentation panel with capacity control valve for each compressor. All valves are bellows-sealed type. Block & bleed valves in suction and intermediate pressure line and double block & bleed valves in discharge line.
    Diaphragm Compressor MKZ 710-5/450-15 For a PTA-plant 2 Compressors: one in service, one in standby
Model MKZ 710-5/450-15 (Duplex-design)
Suction capacity 390 m3 / h (VN)
Type of gas H2
Suction pressure 9 bar abs
Discharge pressure 97 bar abs
    Diaphragm Compressor MKZ 710-5/450-15. Valve and Instrumentation panel For a PTA-plant
1 valve and instrumentation panel with capacity control valve for each compressor. All valves are bellows-sealed type. Block & bleed valves in suction and intermediate pressure line and double block & bleed valves in discharge line.
    Diaphragm Compressor MKZ 400-10/250-25/160-60
Model MKZ 400-10/250-25/160-60 (Duplex-design)
Suction capacity 72 m3 / h (VN)
Type of gas Ar/O2 gas mixture
Suction pressure 190 psi (13 bar abs)
Discharge pressure 8.700 psi (600 bar abs)
    Diaphragm Compressor 120 TK 500/MKZ 350-40
Model 120 TK 500/MKZ 350-40 (vertical L-design with final diaphragm stage)
Suction capacity 500 m3 / h (VN)
Type of gas N2
Suction pressure 230 psi (16 bar abs)
Discharge pressure 4.370 psi (301 bar abs)
    Diaphragm Compressor MKZ 500-10/400-25
  Model MKZ 500-10/400-25 (Duplex-design)
Suction capacity 450 Nm3 / h (VN)
Type of gas H2
Suction pressure 380 psi (26,2 bar abs)
Discharge pressure 2620 psi (180,4 bar abs)
    Diaphragm Compressor MKZ 300-5/200-40
  Model MKZ 300-5/200-40 (Duplex-design)
Suction capacity 27,5 Nm3 / h
Type of gas Propan/H2 - gas mixture
Suction pressure 70 psi (5 bar)
Discharge pressure 300 bar
    Diaphragm Compressor MKZ 185-5/120-15
Model MKZ 185-5/120-15 (Duplex-design)
Suction capacity 5,5 Nm3/ h
Type of gas H2
Suction pressure 70 psi (5 bar)
Discharge pressure 2.190 psi (151 bar)
    Diaphragm Compressor MKZ 560-5/350-25 / MKZ 200-70
Model MKZ 560-5/350-25 / MKZ 200-70
Suction capacity 142 Nm3/ h
Type of gas Ar-O2-He gas mixture
Suction pressure 135 / 2920 psi (9,3 / 201 bar)
Discharge pressure 2.920 psi  / 9.010 psi (201 / 621 bar)
    Diaphragm Compressor MKZ 560-5 For a PTA-plant
Model MKZ 560-5
Suction capacity 556 Nm3/ h
Type of gas H2
Suction pressure 440 - 510 psi (30 - 35 bar)
Discharge pressure 690 - 700 psi (47,7 - 48,4 bar)
    Diaphragm Compressor MKZ 450-10/315-40
Kompressortyp MKZ 450-10/315-40
Ansaugleistung 140 Nm3/ h
Gasart N2-CO2-Ar-He gas mixture
Ansaugdruck 290 psi (20 bar)
Enddruck 5.080 psi (350 bar)
    Diaphragm Compressor MKZ 800-5/470-10/315-25
Model MKZ 800-5/470-1/315-25 (Duplex-design)
Suction capacity 200 Nm3/ h
Type of gas CO
Suction pressure 70 psi (5 bar)
Discharge pressure 3.630 psi (250 bar)
    Diaphragm CompressorMKZ450-10/280-25
Model MKZ 450-10/280-25 (Duplex-design)
Suction capacity 112 Nm3/ h
Type of gas H2
Suction pressure 160 psi (11 bar)
Discharge pressure 3.640 psi (251 bar)
    Diaphragm Compressor MKZ 280-10/185-25/120-100
Model MKZ 280-10/185-25/120-100 (Duplex-design)
Suction capacity 20 Nm3/ h
Type of gas He
Suction pressure 115 psi (8 bar)
Discharge pressure 12750 psi (880 bar)
    Diaphragm Compressor MKZ 860-2/470-10/315-25
Model MKZ 860-2/470-10/315-25 (Duplex-design)
Suction capacity 80 Nm3/ h
Type of gas He
Suction pressure 15 psi (1,03 bar)
Discharge pressure 3420 psi (236 bar abs)
    Diaphragm Compressor MKZ 680-10/450-40
Model MKZ 680-10/450-40
Suction capacity 581 m3/ h (VN)
Type of gas H2
Suction pressure 260 psi (18 bar abs)
Discharge pressure 4075 psi (281 bar abs)
   

PDF Data Sheets: Hofer - Diaphragm Compressors

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