Centralized Medical Gas Pipeline Sytem and Manifold Room

LIST OF TOTAL GAS OUTLET

LOCATION C&D block LEVEL 56.00 OT3 MRI CT SCAN HTV HDU-8 ICU RECOVERY LEVEL 59.75 Cath lab DSA CCU Card Ward LEVEL 63.5 LEVEL 63.50 Gen ICU 16 bed Neuro ICU 16 bed Dialysis Neuro surg ward LEVEL 67.25 CTVS OT 2 CTVS ICU 5 BED CTVS HDU 5 BED OT, 5,6,7 PRE OP POST OP LEVEL 71 OT 8 NO. RECOVERY 1 RECOVERY 2 PREOP OBS GYNE LABOR ROOM DELIVERY SUITE 4 ECLAMPSIA OT NURSERY POST OP WARDS-6 bed each ward ISOLATION PAY WARD 6 FLOORS CIRCULAR WARD WARD ROOM PICU NICU + ISO

OXYGEN

N2O

AIR

VACUUM

6 1 1 1 16 10 4 2 1 15 16 32 32

3

3 1 1 16 10 4 2 1 15 6 16 16 2

6 1 2 2 16 10 4 1 15 6 32 32 2 6

6 6 5 5

6 10 5 6 3

3

10

5 8 10 6

24 10 6 3

2 6 6 10

2

5 6 3 10 16 10 6 3 4 4

3

2 2

2 2

4 4

2 2 4 6 30

1 1

1 1

2 3 4 6 30

10 40

8

6 30 10

10 40

40

40

24 16 10

24 8 10

8 5

Technical Specifications of Centralized Medical Gas Pipeline System and Manifold Room for NEGRIHMS Scope of work 1. Scope of work: Supply, commissioning, operation and maintenance of medical gas pipeline and manifold system at NEGRIHMS. 2. NEGRIHMS is a proposed 500- bedded super specially hospital catering to patients from the North-East region with an initial proposal of 150 beds including OT and ICU beds. 3. The design & selection of all equipments except pipes should be as per NFPA standard (latest version). The copper pipes should conform to BS EN 1057: 1996 accompanied by manufacturer certificate and third party certificate from a certified agency like Eg. Llyd. 4. All indigenous components quoted need to be certified by a recognized certifying agency for it compliance to specific standard. 5. The entire project has to done on turnkey basis. 6. The specifications provided are basic guidelines. The contractor should collect the copy of building layout plan, visit the site and make their proposal. The details of the outlets would be provided at the time of inspection. 7. They would be asked to present their proposal to the technical committee following which they might be asked to resubmit their final bid. 8. Make only one proposal with out any alternative for any of the components. 9. The technical evaluation committee has the right to accept any other technology not mentioned in the tender specifications which they feel to be superior and newwr. Technical Specification The system comprises of 1. Liquid oxygen supply system (optional) 2. Oxygen manifold with fully automatic oxygen control panel. 3. Nitrous oxide manifold. 4. Vacuum (suction) supply system. 5. Air Compressors 6. Distribution piping 7. Alarm System 8. Pendants 9. Bed head panels 10. Outlets 11. Accessories(optional) a. b. c.

O2 flow meter with humidifier Ward vaciim units O.T.Vacuum units.

1.

Liquid Oxygen supply system (optional) Liquid oxygen will be the primary(main) supply source and the oxygen manifold will work as stand by. In case of failure in liquid oxygen supply, it should automatically switch over to oxygen manifold. The unit shall consist of a double walled vertical vessel(made of stainless steel and carbon steel) for out door installation capacity 10,000 liter. It should be fitted with standard accessosries as minimum and should have undergone standard Inspection requirement. A certificate to that effect has to be submitted.

2. Oxygen Manifold Oxygen Manifold of 2x10 Cylinders. The manifold should be hydraulically tested to 3500 psig. The high-pressure header bar shall be designed in such a manner that it can be extended to facilitate additional cylinder connections. Each header bar assembly shall be provided with a high-pressure shut-off valve. The manifold should be so designed that it shall suit easy cylinder changing and positioning. The system should have non-return valves for easy changing of cylinders without closing the bank. The cylinder should be placed with the help of cylinder brackets and fixing chains which should zinc plated. Fully Automatic Oxygen Control Panel The Oxygen Control Panel will be of Digital Type, fully Automatic and shall switch from “Bank in U to “Reserve Bank” without fluctuation in delivery line pressure and without the need for external electrical power. After the switch- over, the “Reserve Bank” shall become the “Bank in Use” shall become the “Reserve Bank”. The Control Panel will be powered by a microprocessor located behind the front door panel. The Control Panel will have 3 large, red, illuminated LED displays, for the Left Bank, the Right Bank and for Delivery Pressure. The control panel will also have Six LED’s, two Green for “Bank in Use”, two Amber for “Bank Ready” and two red for “Bank Empty”. All components inside the Control Panel like Pressure Regulators, piping and control switching equipment shall be cleaned for Oxygen Service and installed inside the cxabinet to minimize tampering with the regulators or switch settings. The Control Panel shall include two pressure relief valves, one high pressure 200 psi and one low pressure 75 psi.

The Control Panel will be made to provide Heavy Duty and have a Flow Capacity of over 2000 LPM. 2.a. Emergency Oxygen System It will have emergency arrangement of one set of three-cylinder configuration with Copper tail pipes, non return valves & high flow regular with pressure gauges for cylinder & line pressure and safety valve. Pressure regular shall be detachable from the manifold. 3. Nitrous Oxide Manifold Same as that of Oxygen Manifold but of 2x 6 cylinder capacity. Fully Automatic Nitrous Oxide Control Panel Same as that of Oxygen control panel. The Control Panel will be made to provide Heavy Duty and have a Flow Capacity of approx. 900 LPM 3.a. Emergency Nitroud Oxide System Emergency system shall have arrangement of one set of Two-cylinder configuration with Copper tail pipes, Non Return Valves & high flow regulator with pressure gauges for Cylinder & line pressure and safety valve. Pressure regulator shall be detachable from the manifold. 4.

Vacuum (suction) supply system The Vacuum Pump station should be stalk mounted with 4 identical pumps of > 2000 cfm capacity (oil seated rotary vein cooled vacuum pumps) with on line starter and pump protection filters. Each Vacuum Pump will be complete with Base Plate, Belt Guard, V Belts, Motor and Starter. The system should be of Automatic Start and Stop Type with standard filter. The pumps should have integral, fully recirculating oil supply with sight to indicate oil level. The oil separation system shall consist of no less than four stages of internally installed oil and smoke eliminators. This system shall be capable of removing 99.9 % of oil and smoke particles from the exhaust. Provide vibration mounting per NFPA 99 Provide audible and visual local alarm (complete with indicating lights) for vacuum pump thermal malfunction and reserve vacuum pump in use. The Pumps should be connected to common vertical receiver of 4000 liters capacity. The receiver shall have a drain valve at the bottom and indigenous. 5. Air Compressors.

The package shall include Tripex oil-less air compressors and associated equipment one vertical ASME tank and one dupex control panel. The entire system including the receiver shall be mounted on a common structural steel stack base. All components shall be completely pre-piped and pre- wired to single – point service connections. An interconnecting piping and wiring shall be completed and operationally tested prior to shipment. The medical air compressor shall be of the totally oil –less reciprocating aircooled design. Connecting rod and bearing shall be packed with lifetime lubrication and sealed Each air compressor shall have a capacity of 35 SCFM at 100 PSIG The system shall include individual compressor inline filters, discharge check valve of bronze construction, safety relief valves, bronze intake and discharge flexible connectors solenoid unloaders, isolation valves, air cooled after coolers for each compressor, high discharge temperature shut down switches on each cylinder, pressure control switches, as well as copper tubing with shut- of cock for gauge and switches. The storage tank shall be equipped with a pressure gauge, safety relief valve, 3way by-pass; gauge glass and automatic electronic tank drain with manual override. The inside of the tank shall be coated for rust protection. Dual desiccant air dryers, dual 0.5 micron pre- filters, dual 0.5 micron afterfilters, line pressure regulating valves, dew point monitor, CO monitor and other accessories required to meet and exceed the current code requirements shall be mounted on the compressor system base. All components shall be completely prepaid and pre- wired to single- point service connections as per latest NFPA/ international standards. There shall be two identical banks of air treatment equipment, piped in parallel and provided with valves to by-pass either filter set for element replacement, maintenance and repair work on one of the sets while still treating medical compressed air through the other set without any sacrifice in air quantity. Each bank should consist of three stages of treatment. The first stage is a prime efficiency coaleser with particle removal down to 0.5 micron with 99.9999% retention. This filter removes aerosol and solid particles. The filter is equipped with electron drain and element change indicator. The second stage is a desiccant heatless air dryer, equipped with purge control. Built-in purge saver control will automatically minimize and adjust the amount of purge air to match the variable airflow. The dry compressed air is discharged from “on line” tower into the third stage.

The third stage is a prime efficiency particulate after filter with particle removal down to 0.5 micron. The after filter element is provides high retention, low-pressure drop and long element life. Downstream pressure regulators will maintain constant discharge pressure of 55 PSIG (field adjustable). Digital dew point and CO monitors with alarm set points at +39 º F and 10 PPM are provided with dry contacts for connection to remote alarm panels. A “demand check” for maintenance should as per current code requirements of latest NFPA/ international standards. 6. Distribution piping Copper pipes should be solid drawn, seamless, deoxidized, non arsenical, half hard, tempered and degreased copper pipe conforming to standards BS EN 1057. All copper pipes should be degreased & delivered capped at both ends. The pipes should be accompanied with manufacturers test certificate for the physical properties & chemical composition. Copper pipe will also have reputed third party inspection certificate (eg. Lloyd’s). Fittings shall be made of copper and suitable for a steam working Pressure of 17 bar and especially made for brazed socket type connectors. The isolation Valves will be made of Chromium plated brass and Non Lubricated Ball type. All Valves shall be pneumatically tested for twice the working pressure and Factory Degreased for medical gas service. Installation & Testing Installation of piping shall be carried out with utmost cleanliness. Only pipes, fittings and valves that have been degreased and fittings brought in polythene sealed bags shall be used at site. Pipe fixing clamps shall be of nonferrous or non-deteriorating plastic suitable for all diameter of the pipe. All pipe joints shall be made using flux less brazing method. All joints shall be made of copperto copper and brazed by silver brazing filler material without flux. Adequate supports shall be provided while laying pipelines to ensure that the pipes do not sag. Suitable sleeves shall be provided wherever pipes cross through walls/ slabs. All pipe clamps shall be non- reactive to copper. After erection, the pipes will be flushed with dry nitrogen gas and then pressure tested with dry nitrogen at a pressure equal to twice the working pressure or 150 psig, whichever is higher for a period of not more than 24 hours. All the piping system shall be tested in the presence of the site-engineer or his authorized representative.

Painting All exposed pipes should be painted with two coats of synthetic enamel paint and color codification should be as per IS: 2379 of 1963. The Pipe Sizes to be used are from among as under: Pipe OD (in mm) 12 15 22 28 42 54 76.1

Thickness (in mm) 0.7 0.9 0.9 0.9 1.2 1.2 1.5

Valve boxes The valve box shall be constructed of 18 gauge complete with baked off finish. The doorframe assembly shall be constructed of anodized aluminum and shall mounted to the back box assembly by screws as provided. The removable front consist of a clear window with a pullout ring pre- mounted to the centre of the window. Each recessed zone valve box shall consist of the following components. A steel box which can house single or multiple shut-off ball valves with tube extension. A piece design Valve, an aluminum frame, and a pull-out removable window. Valves shall be a 4- bolt design, bronze body, double seal, union ball-type, with (TFE) seats and Viton seals, “O” ring packing, and ball which seals in both direction blow-out proof stem, with a pressure rating of 2760 kPa (400 psig). Valves shall operated by a lever –type handle requiring only a quarter turn from a fully open position a fully closed stub extension of sufficient length to protrude beyond the sides of the box. Each valve shall be supplied with an identification bracket bolted directly onto the body for the purpose of applying an approved medical gas identification label. A pack of labels shall be supplied with each valve box assembly for application by the installation. Valves shall be available with line pressure gauges, as required. Gauges shall be (2”) diameter, with metal case and ring. Pressure gauge shall read 0-700 kPa (0-100 psig) for all except nitrogen, which shall read 0-2000 kPa (0-3000 psig), and vacuum, which shall read -100-0 kPa (o-30” Hg.

7. Alarm System The alarm will be of modular construction and Digital Type and consist of master alarm and area alarms at various locations. The alarms shall be microprocessor based with individual microprocessors on each display and sensor board. The sensors shall be capable of local or remote mounting. Each sensor and display units shall be specific, with an error message display for an incorrect connection. The alarms shall be field expandable with the addition of extra modules. Up to six services can be accommodated per standard box. Each specific service shall be provided with an LED digital readout comprising of 0-250 psi for positive pressure and 0-30 inch Hg for Vacuum. The digital readout shall provide a constant indication of each service being measured. A bar graph trend indicator shall be provided for each service indicating a green “NORMAL”. Yellow “CAUTION” and a red “HIGH” or “LOW” alarm condition. Under normal operation the bar graph display shall move up and down in the green range depending on service usage. If an alarm occurs, the “RED” alarm light will flash and the audible alarm will sound. Pushing the “ALARM SILENCE” button will cancel the audible alarm, but the unit will remain in the alarm condition until the problem is rectified. The default set points shall be +/- 20 % variation from normal condition. In the calibration mode the following parameters shall be field adjustable: • • •

High / Low set points Imperical / Metric Units Repeat alarm enable / disable

Set points shall be adjustable by two on board push buttons. In addition “PUSH TO TEST” & “ALARM SILENCE” buttons shall be easily accessible to operate and test the unit. Combination master/ area alarms shall have no moving parts and shall require no maintenance after initial installation. 8.

Pendants The single arm ceiling pendant with movable arm up to 330º shall be of pneumatically / electrically operated type. The pendant shall be at a height of 180 cm from the floor at its lowest position after installing. All electric and medical gas services shall be provided to the lower section by means of flexible hoses and cables. All threaded connections will comply with NFPA recommendations preventing interchange of connections. The ceiling pendant should have provision to accommodate the following:

• • • •

Up to 10 Gas Service outlets in any desired sequence. Up to 10 Hospital Grade electrical Outlets (Indian type). Any Combination of Ground Jacks, Computer Outlets, communication Devices, Slides and IV Hooks. Hose for scavenging system. Some OT’s like cardiac and neuro OT should have surgeons pendants as well with additional facility like º Electrocautery º selves b. Pendant for ICU The ICU pendant should be of single arm with Horizontal movement up to 300º with shelves for ventilator and monitor Provision for 5 gas outlets, 8 electrical outlets, selves with drawer system and side rails, Examination lamp and basket for suction catheters and monitor cables. Quadruple infusion management system

9. Modular Bed Head Panel (for recovery and casualty area) The Bed Head Panel shall be constructed out of extruded aluminum profiles with power coating. The Bed Head Panel shall house gas outlets and electrical sockets & switches. Segregation of Services i.e. electrical and medical gases shall be maintained throughout as per standard. Each Bed Head panel shall accommodate the following: •

Gas Outlets: Oxygen Compressed Air Vacuum

• • •

-2/3 nos. -1/2 -2/3no.

6/16 amps swich socket outlet: 4 IV poles 2 Provision for One Nurse Call System

10. Gas Outlets Outlets shall be manufactured with a 165 mm long Copper inlet pipe stub which is silver brazed to the outlet body. The inlet pipe stub should be capable of swiveling by 360 degrees. Body shall be 33 mm diameter one-piece brass construction. For positive pressure gas services, the outlet shall be equipped with a primary and secondary check valve and the secondary check valve shall be rated at minimum 200 psl in the event the primary cjeck valve is removed for maintenance. Outlet bodies shall be gas specific by indexing each gas service to a gas specific dual pin indexing arrangement on the respective identification modula. A large colour-coded front plate shall be used for ease of gas identification and aesthetic appeal. With the back bow mounted the outlet shall adjust up to 19 mm variation in mounting palte thickness. The latch valve assembly should accept only corresponding gas specific adaptors. All outlets shall be cleaned and degreased for medical gas service, factory assembled and tested. 12. Accessories (optional) All accessories for ICY should be imported a. Flow meter with Humidifier Back Pressure Compensated flow meter will be of accurate gas flow measurement with following features: • • • • • • •

Control within a range of 0.151 pm. It will meet strict precision and durability standard. The flow meter body should be made of brass chrome plated materials. The flow tube and shroud components should be made of clear, impact resistant polycarbonate. Flow Tube should have large and expanded 0-5 lpm range for improved readability at low flolws. Inlet filter of stainless steel wire mesh to prevent entry of foreign particles. The humidifier bottle is made of unbreakable polycarbonate material and autoclavable at 134 degree Centigrade temperature.

b. Ward Vacuum Units Ward Vacuum Unit will be of light weight and compact. The unit will consist of A regulator,