Objectives

The primary objective of this tender is to supply, install, and commission two new medical air compressors along with associated components such as receivers, refrigerant driers, pressure regulating valves, and filters. The project aims to ensure the provision of oil-free, moisture-free, and bacteria-free medical compressed air that meets specified standards for hospital use, including backup capacity and compliance with relevant safety and quality standards.

Scope

The scope of work includes:

• Supply and installation of two medical gas compressors with specified technical features.
• Provision of a 500L cylindrical receiver with safety and pressure gauges, pressure vessel certificates, and galvanised construction.
• Installation of medical gas piping using medical-grade copper tubing, pressure reducers, relief valves, and associated fittings.
• Electrical wiring, control panels, and automation for compressor operation.
• Installation of refrigerant air dryers capable of drying at specified flow rates and pressures.
• Commissioning, testing, and handover of the complete plant, ensuring operational readiness and compliance with standards.
• Guarantee of workmanship and equipment for 12 months post-installation.

Technical Requirements

The technical specifications include:

• Compressors: Rotary screw type, 3-phase induction motor, 11 kW, 2900 rpm, insulated Class F, with a capacity of 1.45 m³/min at 8 Bar pressure.
• Compressor control: Stop-Start controlled, air-cooled, with automatic operation based on pressure setpoints.
• Receiver: 500L capacity, welded steel, galvanised internally and externally, with safety valves, pressure gauges, and certification.
• Gas piping: Medical-grade copper, compliant with SABS 1453, with relief and pressure reducing valves, installed with appropriate supports and fall gradients.
• Electrical: Fully compliant with SANS 0142, including control panels, motor protection, and wiring.
• Refrigerant air dryer: Mono-bloc, capable of drying 0.6 m³/min at 700 kPa, using R404A or equivalent refrigerant.
• Guarantees and documentation: Factory test certificates, manuals, and warranty for 12 months.

Skills Requirements

The successful bidder must demonstrate:

• Technical expertise in the supply, installation, and commissioning of medical gas systems, including compressors, piping, and drying systems.
• Experience with hospital-grade medical gas installations, complying with SABS standards and safety regulations.
• Qualified electrical and mechanical personnel capable of executing the scope of work to high standards.
• Ability to provide comprehensive documentation, including manuals, test certificates, and warranty certificates.
• Capacity to conduct testing, troubleshooting, and commissioning to ensure operational readiness.
• Knowledge of relevant health and safety standards, including environmental and infection control protocols.