Medical Gas Plants · TEC51.21

Technical Medical Air Plant – Single Compressor Systems (TEC51.21)

The technical medical air plant is Tecnomed's economical alternative for facilities with a smaller bed count. A single screw compressor mounted over a horizontal receiver, with its own dryer, filter set and 4-7 bar regulator group, produces sterile air to medical standards in a compact footprint, and can be doubled as a redundant tank-over system or backed up with cylinders.

  • ISO 13485
  • BS EN 286-1:1998+A2:2005
  • Medical Air
TEC51.21 Technical Medical Air Plant – TEC51.21

Overview

The technical medical air plant covers the same production chain as a full triplex plant but with one machine set instead of three. A screw compressor delivers compressed air at up to 10 bar into a horizontal receiver tank, the dryer removes moisture, the four-stage filter group sterilises the air, and the medical air regulator group stabilises the outlet pressure before the pipeline. That makes it a more economical route to medical air production for hospitals, laboratories and medical areas with a small number of beds.

Each model is supplied as a matched set: compressor capacities of 41,4 to 187,2 m³/h with motor powers from 5,5 kW (7,5 hp) to 22 kW (30 hp), a 500 Lt or 1000 Lt horizontal tank, one filter set, one dryer of 54 to 216 m³/h and one medical air regulator group for 4-7 bar. The screw compressors (TEC51.21.SC) work on a belt-pulley system with separator filters, so oil is separated from the air inside the screw group and the oil-free air is cooled in the radiator before leaving the compressor outlet. A PLC control screen handles operation and monitoring.

The component family can be specified individually. Compressed air tanks (TEC51.21.AT) come in 250, 500, 1000 and 2000 litre volumes, horizontally or vertically, and are produced to BS EN 286-1:1998+A2:2005. The quad filter group (TEC51.21.FC) chains a general purpose filter, an oil trap filter, an activated carbon filter and a particle trap in an aluminium alloy body rated for 20 bar maximum working pressure. Compressed air dryers (TEC51.21.AD) are supplied as refrigerated or desiccant types, the desiccant version with a redundant tower system, PLC control screen and silencer filters.

The plant can be designed as a two-machine redundant tank-over system, or backed up with cylinders and emergency feeding where a single machine is not acceptable. Tecnomed medical air plants are designed and manufactured under ISO 13485 quality management. The medical air regulator group (TEC51.21.AR) is the last component in the chain: 7-8 bar is preferred for surgical air, 4-5 bar for respiration in intensive care and operating rooms.

Key features

  • Single screw compressor mounted over a horizontal receiver tank
  • Compressor capacities from 41,4 m³/h to 187,2 m³/h at 10 bar maximum
  • Motor powers from 5,5 kW (7,5 hp) to 22 kW (30 hp)
  • 500 Lt or 1000 Lt horizontal compressed air tank
  • Belt-pulley screw compressor with separator filters and radiator cooling
  • PLC control screen, quiet and efficient operation, easy periodic maintenance
  • Quad filter group: general purpose, oil trap, activated carbon and particle trap
  • Aluminium alloy filter bodies rated to 20 bar maximum working pressure
  • Refrigerated or desiccant dryer with redundant tower system and silencer filters
  • Medical air regulator group stabilising the line in the 4-7 bar range

Technical specifications

Technical Medical Air Plant Models (TEC51.21)

Product CodeCompressor CapacityCompressor Max PressureCompressor Electric Motor PowerTank CapacityFilter GroupDryer CapacityMedical Air Regulator Group 4-7 BarConnection Equipment
TEC51.21.0141,4 m³/h x 110 bar5,5 kw / 7,5 hp500 Lt x 1 Horizontal1 Set54 m³/h x 11 piece1 Set
TEC51.21.0257,6 m³/h x 110 bar7,5 kw / 10 hp500 Lt x 1 Horizontal1 Set72 m³/h x 11 piece1 Set
TEC51.21.0380,4 m³/h x 110 bar11 kw / 15 hp1000 Lt x 1 Horizontal1 Set109,8 m³/h x 11 piece1 Set
TEC51.21.04134,4 m³/h x 110 bar15 kw / 20 hp1000 Lt x 1 Horizontal1 Set150 m³/h x 11 piece1 Set
TEC51.21.05156 m³/h x 110 bar18,5 kw / 25 hp1000 Lt x 1 Horizontal1 Set186 m³/h x 11 piece1 Set
TEC51.21.06187,2 m³/h x 110 bar22 kw / 30 hp1000 Lt x 1 Horizontal1 Set216 m³/h x 11 piece1 Set

Plant Components (TEC51.21)

Product CodeComponentKey Data
TEC51.21.SCScrew Type Air CompressorBelt-pulley system, separator filters, radiator-cooled oil-free outlet, PLC control screen
TEC51.21.ATCompressed Air Tank250 Lt, 500 Lt, 1000 Lt or 2000 Lt, horizontal or vertical, BS EN 286-1:1998+A2:2005
TEC51.21.FCFilter GroupQuad group: general purpose > oil trap > activated carbon > particle trap, aluminium alloy, 20 bar max
TEC51.21.ADCompressed Air DryerRefrigerated or desiccant type, PLC control screen, silencer filters, redundant tower system
TEC51.21.ARMedical Air Regulator Group4-7 bar; 7-8 bar for surgical air, 4-5 bar for respiration

Models and product codes

Product codeModels and product codes
TEC51.21.01Technical Medical Air Plant 41,4 m³/h – 5,5 kW compressor, 500 Lt horizontal tank
TEC51.21.02Technical Medical Air Plant 57,6 m³/h – 7,5 kW compressor, 500 Lt horizontal tank
TEC51.21.03Technical Medical Air Plant 80,4 m³/h – 11 kW compressor, 1000 Lt horizontal tank
TEC51.21.04Technical Medical Air Plant 134,4 m³/h – 15 kW compressor, 1000 Lt horizontal tank
TEC51.21.05Technical Medical Air Plant 156 m³/h – 18,5 kW compressor, 1000 Lt horizontal tank
TEC51.21.06Technical Medical Air Plant 187,2 m³/h – 22 kW compressor, 1000 Lt horizontal tank
TEC51.21.SCScrew Type Air Compressor – Belt-pulley, oil-free outlet air, PLC control screen
TEC51.21.ATCompressed Air Tank – 250 / 500 / 1000 / 2000 Lt, horizontal or vertical
TEC51.21.FCFilter Group – Quad filtration in aluminium alloy bodies, 20 bar
TEC51.21.ADCompressed Air Dryer – Refrigerated or desiccant type
TEC51.21.ARMedical Air Regulator Group 4-7 Bar – Final pressure stabilisation before the pipeline

Options and accessories

  • Two redundant machines in a tank-over arrangement
  • Back-up with cylinders or emergency feeding
  • Automatic evacuation system on the air tank
  • Condenser drain system
  • Filter element clogging indicator
  • Automatic drain system on the filter group
  • Horizontal or vertical tank, 250 to 2000 Lt
  • Refrigerated or desiccant dryer

Frequently asked questions

How does the technical medical air plant differ from TEC51.20?

The TEC51.20 medical air plant uses three compressors with duplicate tanks, filters and dryers. The technical plant uses one machine set over a horizontal tank, which is more economical and compact. It is intended for hospitals, laboratories and medical areas with a small number of beds, or as a secondary source.

Can a single-compressor plant still be redundant?

Yes. The system can be designed as two redundant tank-over machines, and it can be backed up with cylinders or emergency feeding. That gives a continuity level appropriate to the facility without the cost of a full triplex plant.

What does the quad filter group remove?

Dehumidified air from the dryer enters the general purpose element for first-stage filtration, then the oil trap precision filter removes remaining oil particles and droplets, the activated carbon filter strips oil and hydrocarbon odours, and the particle trap completes the chain so the air meets medical air standards.

Which dryer type should be chosen?

Compressed air dryers are supplied as refrigerated or desiccant types. Desiccant dryers use a redundant tower system with silencer filters and a PLC control screen, giving a lower dew point, while refrigerated dryers are simpler and suit less demanding duties. The choice is made on the required air quality and ambient conditions.

Key facts

Product code
TEC51.21
Standards
ISO 13485 · BS EN 286-1:1998+A2:2005
Gas services
Medical Air
Applications
Small and medium hospitals, Laboratories, Medical areas with a small number of beds, Clinics and day surgery centres, Back-up or secondary medical air source in larger facilities
Tecnomed

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