Construction of new OPD block at IGMC Shimla SH Providing oxytgen nsystem vacum system and compressed air system in oplant room in new OPD block

Amount

DUPLEX MEDICAL VACUUM SYSTEM

The duplex medical vacuum system should comply with HTM 02-01/NFPA 99/ DIN / EN / ISO-7396-1 standards. It should be Oil Sealed Rotary Vane/Oil Lubricated Screw Type to produces minimum 160 CFM (+/- 5%) as primary and 160 CFM as standby. The vacuum plant shall comprise air-cooled, oil lubricated rotary vane vacuum pumps suitable for both continuous and frequent start/stop operation at inlet vacuum levels between 500mmHg and 660 mmHg. The control system should normally employ automatic rotation of the lead pump to maximize pump life and ensure even wear.Vacuum pump inlets shall include a wire mesh filter and integral non-return valve to prevent oil suck back and pressure increases in the vacuum system. Each vacuum pump shall be fitted with anti-vibration pads between the pump foot and mounting frame. The plant shall be fitted with duplex bacteria filter system.

The vacuum receiver of 2000 liters shall be made of rust free corrosion resistant steel and fabricated as per BS/ISO for a vacuum pressure of 760mmHg. It should include bypass valves, manual drain valves, vacuum gauge.

Duplex Medical Air Plant & Surgical Plant 3 Phase 50 Hz

The medical air plant shall fully comply with the requirements of the HTM 02-01/ NFPA99C/EN/DIN/ISO 7396-1. Compressors rotary vane/Oil lubricated Rotary Screw compressors, with duplex drier and filtration system. The system shall be duplex such that the supply is maintained in single fault condition. Standby compressors system capacity shall be accordingly as per the relevant standards. Manufacturer must provide a declaration that proposed compressor model is medical grade as per ISO 7396-1 or HTM 0201 or NFPA99 compliance along with the product catalogue.

Compressors shall be Oil Free Scroll/Oil lubricated Rotary Screw/Scroll/Tooth compressors suitable for both continuous and frequent start/stop. Compressors shall be incorporate maintenance-free greased for life bearings. Motors with lower efficiency ratings are not acceptable. A mechanical back-up facility shall ensure continued operation in the event of a control system malfunction. The control system shall normally employ automatic rotation of the lead compressor to maximize life and ensure even wear. Each compressor shall be operate minimum 10bar output pressure Compressor motor shall be extremely high efficiency MOTOR RATING. Belt driven compressors are not acceptable only direct driven acceptable. Each compressor minimum capacity would be 15KW. Plant Control Unit Each Compressor shall be with integrated control system shall provide an intelligent human machine interface incorporating on board flash memory and real-time clock for recording operational parameters in the in-built event log. The controller shall operate at low voltage and include BMS connection for plant fault, plant emergency, reserve fault and pressure fault. Visualisation of plant inputs, outputs and status through a web browser, using a simple Ethernet connection shall be available. The control unit shall incorporate a user friendly high-definition screen colour display with clear pictograms and LED indicators, providing easy access to system operational information with 5 years warranty.

Supply installation testing and commissioning of Oxygen System as mentioned below:-

Oxygen Manifold and control panel

The manifold and control panel should comprise of two banks of 10-12 cylinders each In additional bank of 10 cylinders should be supplied and installed for emergency supply of oxygen.

The control panel should be meant for the supply of oxygen at 1000 litres per minute

The unit (control panel)should be imported and comply with international standards like NFPA/ HTM-2022/ BIS

The control panel will need to be adjusted at a pressure to ensure 4 bar pressure in the two existing blocks of the hospital

The control panel should be from reputed manufacturers like: Becon Maedas/Ohio Medical/ Penlon/ Medicop/ Drager/Atlas COPCO EuCE or USFDA certified

The fittings should be suitable for 38mm pipeline system

Feed Gas:Medical grade oxygen as per Indian Pharmacopeia 99.5% at pressure 130 – 140 bar

Gas Delivery Temperature (–) 10oC to (+) 30oC and ambient relative humidity of exceeding 80%

Altitude above MSL: 2250 meters

Frost formation and pressure drop is common problem in winters and rainy season. Therefore heating arrangement for the control panel have to be provided and be documented and quoted.

Safety relief valves, pressure gauges, NRVs and Alarms etc should be provided with means to prevent tampering by Un-authorized persons with 5 years warranty.

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