For Supply, installation, commissioning and maintenance of Medical Air Plant with Pipeline Extension, Plant Room Renovation, and Oxygen Line Enhancement at Mymensingh Medical College Hospital (MCH).
TERMS OF REFERENCE FOR INSTITUTIONAL CONTRACT
Title of the assignment
Supply, installation, commissioning and maintenance of Medical Air Plant with Pipeline Extension, Plant Room Renovation, and Oxygen Line Enhancement at Mymensingh Medical College Hospital (MCH).
Purpose
Hiring engineering technical company qualified to supply, installation, site supervision services, including safety compliance and quality assurance for the installation, commissioning and maintenance of Medical Air Plant with Pipeline Extension, Plant Room Renovation, and Oxygen Line Enhancement at Mymensingh Medical College Hospital (MCH).
Location
Mymensingh Medical College Hospital, Mymensingh
Estimated Duration
Total project duration is 12 months from the signing of contract.
- 4 months for the installation, Testing & commissioning of Medical Air Plant with other works.
- 8 months for operations, preventive and repair maintenance.
Reporting to Technical Supervisor of this assignment
Health Officer, UNICEF Bangladesh
1. Background
Mymensingh Medical College Hospital, located in the Mymensingh Division of Bangladesh, is one of the oldest and most prominent healthcare facilities in the country. Established to serve the growing healthcare needs of the region, the hospital has become a critical resource for the local population, as well as for patients from neighboring districts. The hospital’s specialized care for Neonates (SCANU) plays a pivotal role in providing specialized newborn care, particularly for critically ill neonates.
Despite its critical importance, the SCANU unit is currently operating under severe constraints. The unit was originally designed to accommodate 50 beds, but due to increasing demand, it now serves approximately 200 to 300 children daily. This overwhelming patient load has strained the unit’s infrastructure, particularly in terms of its medical gas supply, which is vital for the treatment and care of critically ill children.
The existing medical gas pipeline system, which includes oxygen and medical air outlets, is outdated and inadequate. The SCANU currently has only 35 oxygen outlets, many of which are non-functional, and just 4 medical air outlets. This shortage of outlets directly affects the unit’s ability to operate essential medical equipment, such as ventilators and bubble CPAP devices, compromising the quality of care provided to patients. Additionally, the current infrastructure lacks critical safety features, such as Line Ball Valves and area alarms, further exacerbating the risk to patients and staff.
The medical air supply system, which is crucial for respiratory support and various other medical interventions, is particularly problematic. The existing system relies on an outdated manual manifold with limited capacity, making it difficult to ensure a reliable supply of medical air. The manifold room itself is small and outdated, lacking the space and facilities needed to accommodate a new medical air plant or larger manifold system.
Given these challenges, there is an urgent need to upgrade the SCANU’s infrastructure to meet the demands of the current patient load and to ensure the provision of high-quality care. The proposed project involves the installation of a new medical air plant, the extension of the existing medical air and oxygen pipelines, and the renovation of the plant room to house the new equipment. This project is critical not only for enhancing the SCANU’s capacity but also for ensuring the safety and well-being of the young patients who rely on its services.
The successful completion of this project will significantly improve the hospital’s ability to provide uninterrupted and safe medical air and oxygen supply, thereby enhancing the overall quality of care in the SCANU. This initiative aligns with the broader goals of the healthcare sector in Bangladesh, which is focused on improving neonatal and pediatric care outcomes, particularly in regions with high patient volumes and limited resources.
2. Objectives, Purpose and Expected Results
Objectives and Purpose of Assignment –
Purpose of Assignment:
The primary purpose of this assignment is to upgrade the infrastructure of the Specialized Care for Newborn Unit (SCANU) at Mymensingh Medical College Hospital by installing a modern Medical Air Plant, extending the existing medical gas pipeline system, renovating the Medical Air plant room, and installing a new air manifold system.
Specifically, the project seeks to:
- Ensure Uninterrupted Medical Air Supply: By installing a new Medical Air Plant and an air manifold system with adequate capacity to support the entire SCANU, the project will eliminate the current deficiencies in the medical air supply, which are crucial for operating ventilators, CPAP devices, and other life-supporting equipment.
- Expand Oxygen and Medical Air Outlets: The extension of the existing pipeline system and the addition of new outlets will address the current shortage, ensuring that each critical care area within the SCANU has sufficient access to medical gases.
- Enhance Safety and Compliance: The renovation of the plant room as per BOQ and the installation of modern safety features, such as Line Ball Valves, area alarms, and a state-of-the-art air manifold system, will bring the facility up to current safety standards, minimizing risks to patients and staff.
- Improve Infrastructure Sustainability: The upgraded systems, including the air manifold system, will not only meet current demands but will also be scalable to accommodate future growth, ensuring long-term sustainability and efficiency in the delivery of healthcare services.
Objectives:
The objectives of this assignment are to engage a qualified contractor or consortium of contractors to execute the necessary works for the installation of the Medical Air Plant, air manifold system, pipeline extension, plant room renovation, and associated tasks. The selected contractor will be responsible for delivering a fully operational and compliant system that meets all technical, safety, and regulatory requirements.
This assignment is crucial for several reasons:
- Addressing Critical Infrastructure Deficiencies: The current state of the SCANU’s medical gas infrastructure is inadequate for the high volume of critically ill patients it serves. Upgrading and maintenance this infrastructure, including the addition of a modern air manifold system, is essential to provide the standard of care required in such a high-pressure environment.
- Ensuring Patient Safety: With the introduction and maintenance of modern equipment and safety measures, the project will significantly reduce the risks associated with outdated systems, thereby protecting the health and lives of vulnerable patients.
- Supporting Healthcare Staff: Providing a reliable and efficient system, including the air manifold system, will empower healthcare providers to deliver better care, reduce stress on staff, and improve overall operational efficiency within the SCANU.
- Contributing to National Healthcare Goals: This project aligns with the broader objectives of the healthcare sector in Bangladesh, particularly in improving newborn care outcomes, and enhancing the capacity of public healthcare facilities to serve large populations.
Specific services under this assignment are as follows:
The assessment of the current infrastructure and the subsequent installation, renovation and maintenance project at Mymensingh Medical College Hospital's SCANU will require the following specific services:
- Comprehensive Site Survey and Assessment:
- Conduct a detailed assessment of the existing medical gas pipeline system, including oxygen and medical air outlets, to identify deficiencies, non-functional outlets, and areas requiring expansion.
- Evaluate the current condition of the plant room, including its size, ventilation, electrical systems, and suitability for housing a new Medical Air Plant, air manifold system, and other equipment.
- Assess the current medical air supply system, including the existing manifold and related infrastructure, to determine its capacity and limitations.
- Identify any structural modifications or reinforcements required to accommodate the new equipment.
- Design and Planning:
- Develop detailed engineering designs for the installation of the Medical Air Plant, air manifold system, and extension of the medical gas pipeline, ensuring compliance with national and international standards.
- Plan the layout of new medical air and oxygen outlets to optimize accessibility and functionality within the SCANU.
- Design the renovation plan for the plant room, including necessary expansions, electrical upgrades, and the installation of safety features such as Line Ball Valves and area alarms.
- Installation of Medical Air Plant and Air Manifold System:
- Supply, install, and commission a new Medical Air Plant with adequate capacity to meet the demands of the SCANU.
- Install a state-of-the-art air manifold system, ensuring compatibility with the new Medical Air Plant and existing infrastructure.
- Connect the air manifold system to the extended pipeline network, ensuring seamless integration and reliable operation.
- Pipeline Extension and Outlet Installation:
- Extend the existing medical gas pipeline network to accommodate additional oxygen and medical air outlets throughout the SCANU.
- Install new outlets in critical care areas, ensuring adequate coverage and accessibility for all patient beds and equipment.
- Ensure all new installations comply with safety and operational standards, including proper labeling, testing, and certification.
- Plant Room Renovation:
- Renovate the existing plant room to accommodate the new Medical Air Plant, air manifold system, and associated equipment.
- Upgrade electrical systems, ventilation, and structural elements as required to support the new installations.
- Install necessary safety features, including Line Ball Valves, area alarms, and emergency shutdown mechanisms.
- Testing, Commissioning, and Training:
- Conduct comprehensive testing and commissioning of the new Medical Air Plant, air manifold system, and extended pipeline network to ensure full functionality and compliance with relevant standards.
- Provide training to hospital staff on the operation, maintenance, and troubleshooting of the new systems.
- Develop and deliver detailed operation and maintenance manuals for the hospital’s technical team.
- Post-Installation Support and Maintenance:
- Provide post-installation support, including a warranty period for all equipment and installations.
- Offer periodic maintenance services and technical support to ensure the continued efficient operation of the new systems.
- Conduct follow-up assessments to address any issues that may arise and ensure the long-term sustainability of the infrastructure.
4. Deliverables
Deliverables
Items covered/Included
Time frame
1.
Complete report with detail plan specifications, design, safety compliance along with implementation plan and inception report
- A comprehensive project plan outlining the approach, methodology, and timeline for completing the project, including key milestones and deliverable dates.
- A detailed report documenting the findings of the site survey, including the condition of existing infrastructure, identified deficiencies, and recommendations for improvements.
- Complete engineering designs and drawings for the Medical Air Plant, air manifold system, MGPL pipeline extensions, and plant room renovation. This should include technical specifications and compliance with relevant standards.
15 Days
2
Review and approval of the design and drawings for the Medical Gas Pipeline and Plant Room.
- A detail MGPL pipeline drawing including Area alarm, Line ball valve, manifold and plant room connection in SCANU.
- An engineering drawing including civil construction and electrical part for the medical air plant and manifold room.
05 Days
3
Medical Air Plant Room Renovation
- A detailed plan and schedule for renovating the plant room, including structural modifications, electrical upgrades, and safety installation
- Renovation of the plant room
45 Days
4
Pipeline Extension and Outlet Installation
- Extension of the medical gas pipeline network and installation of new oxygen and medical air outlets as per the design specifications.
30 Days
5
Installation of Medical Air Plant and Air Manifold System
- Installation of the Medical Air Plant and air manifold system, including all necessary connections, calibrations, and system integration.
60 Days
6
Testing, Commissioning & Training
- Quality test for medical gas pipeline and medical air plant renovation work.
- A comprehensive report detailing the testing and commissioning of the new systems, including any issues identified and their resolution.
- Training sessions for hospital staff on the operation and maintenance of the new systems, along with detailed operation and maintenance manuals.
15 Days
7
Final Project Report and Documentation
- A final report summarizing the project’s execution, including all documentation, certificates of compliance, and a summary of the warranty and post-installation support arrangements.
10 Days
8
Post-Installation Support and Maintenance Plan
- A plan for ongoing support and maintenance, including scheduled inspections, maintenance services, and emergency repair provisions.
240 Days
5. Reporting requirements
a. Inception report which includes Initial Site assessment, Physical structural analysis; Detail Technical Specifications in compliance with HTM-0201/NFPA-99/MOHFW’s guidelines, detail design (MGPS); Safety compliance; Permitting; Team mobilization and Project Implementation Plan along with detail site-based work plan; Detail operations, maintenance and site supervision and quality assurance plan;
b. Monthly progress update report on operations, site supervision and quality assurance visits and maintenance of the MGPS including capacity building
c. Two reports on completion of Installation, physical works Testing & Commissioning (one after 70% completion, second one after 100% completion)
d. Submission of final project completion report.
e. Interim report, presentation on updates as required by UNICEF or DGHS
6. Qualification requirement of the company/institution/organization
- The bidder must have a team of qualified engineers, technicians, and project managers with relevant experience in the design, installation, and maintenance of medical gas systems. CVs and certifications of key personnel must be provided.
- The bidder must possess or have access to the necessary technical resources, tools, and equipment required to execute the project effectively. A detailed list of these resources should be included in the bid.
- The bidder must demonstrate knowledge and experience in complying with relevant international and national standards for medical gas systems, such as HTM, NFPA 99, and other applicable standards.
- The bidder must have at least 5 years of experience in the installation and commissioning of medical gas systems, including Medical Air Plants, air manifold systems, and pipeline networks in healthcare facilities.
- Similar work experiences with the Ministry of Health, Government of Bangladesh would be an added advantage.
- The tenderer shall be the sole local agent / distributor of the proposed brand equipment. In this regard documents shall have to be submitted along with the tender.
- The Documents should be submitted from Principal Letter Head along the tender
- Manufacturer Authorization letter
- Country of Origin certificate
- Warranty Certificate
- Functionality Test Certificate
- Declaration certificate for offered products spare parts availability for 10 years.
- Standard Certificates NFPA/HTM/UL & NEMA
- Airway bill and Shipping document before equipment installation
7. Payment Schedule
S/N
Activity Completion
Payment Schedule
Payment %
01
Upon submission 1st deliverable of Complete assessment report with detail site assessment and detail plan of specifications, design, safety compliance along with implementation plan and inception report;
First payment
20%:
02
Upon submission of an activity report on completion of plant room renovation, pipeline extension and outlet installation
Second payment
20%
03
Upon submission of an activity report on completion of Medical Air Plant and manifold installation
Third payment
40%
04
Submission of final project completion report after completion of project period including maintenance support for 8 months.
Fourth payment
20%
EVALUATION CRITERIA FOR TECHNICAL PROPOSAL
CATEGORY
POINTS
CONTRACTOR’S INFORMATION – MANDATORY REQUIREMENT
15
i) General Information
2
ii) Bidders contact details
3
iii) Legal Documentation (evidence of Registration, Trade licence, VAT & Tax certificates
5
iV) Bidders Financial information /Adequacy of working capital
5
METHODOLOGY, DETAILED WORK PLAN AND TIMELINE
Please submit the details as per your own format
30
i) Understanding of Scope, Objective and responsiveness to the requirements in the ToR;
5
ii) Detail methodology showing the overall approach to be adopted in the execution of the works.
5
iii) Detail sequential program of works from mobilization to post installation support and maintenance plan for timely completion of work
5
iv) Details Technical specification of goods; including all standard, brochure, Quality test certificate.
10
v) Overall certificates including manufacturer authorization (principal letterhead), ISO/CE/FDA, warranty certificate, spare parts availability certificate, post installation service and maintenance certificate with current date, seal and signature.
5
EXPERIENCE AS A CONTRACTOR DELIVERING SIMILAR WORKS
20
i) Number of years as a MGPL works contractor and related medical equipment supplier
2
ii) Experience providing medical gas pipeline service to the international organization
10
iii) Providing a list of the last five-six projects of similar nature with email and telephone information for the clients.
5
iv) Product availability in ready stock to complete the whole project within the timeframe.
3
TEAM COMPOSITION
15
i) Organization of the team and roles & responsibilities;
5
ii) Details of a local representative who will be overseeing the works at the project site, from the beginning to handover of the project.
5
iii) CV and profile of the Team leader & Team member: Relevant experience, skills & competencies; qualifications, and position with firm;
5
TOTAL MARKS
80
For this RFP, the Technical Proposal has a total score of 80 points. Bidders must score minimum of 56 points to be considered technically compliant and in order, for the Financial Proposals to be opened. Financial proposal has a total score of 20 points.
The final selection of the bidder will be based on a quality and cost basis as specified in the Request for Proposal (RFP).
UNICEF reserves the right to award the contract as an outcome of this bid to one or multiple companies/organizations/firms for implementation and also split the number of hospitals for expansion and/or new Manifold establishment plan between various companies/organization/firms based its assessment while awarding the contracts. Bidders are requested to take into account the above while preparing their technical and financial proposals.
TOR Annex-1: Specifications of goods
S/N
Description of Item
Unit
Quantity
1.00
MEDICAL AIR PLANT
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: BS EN ISO 9170-1:2020
Set
01
Supply & installation of continuous duty duplex medical air system which is a completely packaged assembly featuring 100% oil-less air compressors, electrical control cabinet, receiver and the necessary accessories required to meet and exceed the current code requirements.
The Medical Air system shall conform to EN ISO 7396-1 and NHS Health Technical Memorandum HTM02-01 or HTM2022. Medical quality air to the European Pharmacopoeia monograph shall be delivered at pressures of 400 kPa (4 bar) gauge for supply of the hospital medical systems. The entire system shall be ‘duplexed’ such that any single functional component failure will not affect the integrity of the medical compressed air supply. Under normal conditions, operation of a single air (duty) compressor shall generate the design pressure within the air receiver.
The system includes a pressure storage tank of standard rating. The tank shall be equipped with a pressure gauge, safety relief valve, 3-way bypass, gauge glass, and automatic tank drain with manual override.
The system should include a UL/CE labeled control panel in a suitable enclosure. The panel should include/(consist of) the following standard accessories for each pump: Externally operable circuit breaker with a door interlock, control circuit transformer with fused primary and secondary coils, H-O-A switch, run light, hour meter, and magnetic starter with three-leg overload protection and reset switch. The panel should be equipped with a multiple position selector switch for (selection of) normal operation (automatic alternation) or manual selection of lead and lag pumps if one of the pumps is taken out of service due to scheduled maintenance.
Local audible and visual alarms are to be provided as per the following standard for compressor thermal malfunction and "Backup in use." The alarms should include indicating lights as well as the horn. In addition, the thermal malfunction shut-down is to be provided with a manual reset. The audible alarm should be acknowledged with the "Silence" button. The visual alarm will remain energized until the problem has been corrected. Each alarm function should include a set of dry contacts for connection to the master alarm. All control and alarm functions will remain energized while any compressor in the system remains electrically online.
Field adjustable control switches shall be provided to pre-set to operate the lead compressor between 100 PSIG and 125 PSIG. The lag compressor will automatically start at 95 PSIG if the lead compressor fails to operate.
The duplexed filter and dryer module shall incorporate high-efficiency oil coalescing filters, heatless regenerative desiccant dryers, impregnated activated carbon filters, and bacterial filters. The performance of the filters shall be according to the below specifications: • Oil coalescing high-efficiency filter: mass efficiency of min 99%, tested according to ISO 8573-2 & ISO 12500-1; • Activated carbon filter: max remaining total oil content of 0,003 mg/m³, tested according to ISO 8573-5 & ISO12500-2; • Bacterial filter: particle count efficiency of 99% at MPPS=0.06µm, tested according to ISO 12500-3. • Contaminants in the delivered air downstream of the bacteria filters shall be maintained at levels below those shown in the table below: Each dryer tower shall have the water concentration in the delivered air continuously monitored by a dedicated sensor providing an alarm indication for high dew point on the respective dryer as a backup to the alarm provided by the hygrometer with digital display. The outlet air pressure shall be regulated through a duplex arrangement of non-relieving pressure regulators and protected from over-pressure by duplex pressure safety valves.
Each unit should consist of two identical banks of air treatment equipment, piped in parallel and provided with valves to the by-pass either filter set for element replacement, maintenance, and repair work on one of the sets while still treating compressed medical air through the other set without any sacrifice in air quality.
0.5-micron after-filters should be excellent efficiency coalesces with particle removal down to 0.5 microns.
Digital dew point and CO monitors with alarm set points at 39°F and 10 PPM are to be provided with dry contacts for connection to remote alarm panels. A "demand check" for maintenance is to be included as per the following standards:
Tank specification : painted ASME tank
Power supply : 380 volts 50 Hz 3 phase
The quality of Medical Air must be in compliant with British/European/American Pharmacopeia
Contaminant Threshold
H2O 67ppm v/v (-46°C atm. dp)
CO 5 ppm v/v
CO2 500 ppm v/v
SO2 1 ppm v/v
NO 2 ppm v/v
NO2 2 ppm v/v
Taste and odour: Test and Odour free
Dry particulates ISO 8573-1 particle purity Class 2
Oil (droplet or mist) 0.1 mg/m³
Standard: HTM-02-01/ HTM-2022/ NFPA 99/DIN / JIS or equivalent.
Manufacturer must have valid ISO-9001, ISO-13485, 93/42/EEC (CE) certifications or UL listing or ELT certification and manufacturing experience of a minimum of 20 (twenty) years including predecessor company’s experience (if any).
The capacity of the plant: 500 LPM
2.00
MEDICAL GAS OUTLETS:
MEDICAL GAS OUTLETS: OXYGEN
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: BS EN ISO 9170-1:2020
specific only to accept correct medical gas probe. For positive pressure gas services, the outlet should be equipped with a primary and secondary check valve and the secondary check valve should be rated at a minimum of 1379 kpa in the event the primary check valve is removed for maintenance. Outlet bodies should be gas specific by indexing each gas service to a gas specific dual pin indexing arrangement on the respective identification module. Gas specific components within a terminal unit shall be pin indexed to ensure that a correct gas specific assemble is achieved. Each terminal unit shall incorporate a maintenance valve, designed to shut off the gas flow when the terminal unit is removed for maintenance purposes. The units shall be capable of single-handed insertion and removal / push type. A color coded front plate should be used for ease of gas identification and aesthetic appeal. A one-piece fascia plate should frame the outlet. The units should be suitable for concealed installation and should be complete in all respect including chromed fascia. First fix assembly, second fix assembly, fascia plates, fixing screws etc. distance between outlets must conform to recommended minimum and the facial plate shall be sized accordingly. All outlets shall be 360-degree swivel inlet pipe for easy installation. All outlets shall be cleaned and degreased for medical gas service, factory assembled, tested. The outlets shall be UL Listed and HTM compliant.
(a)
Outlets for Oxygen (345kpa-500 kpa)
set
20
(b)
Outlets for Medical Air (345kpa-500 kpa)
set
40
3.0
GAS LINE VALVES
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: HTM-02/2022/NFPA-99 or Equivalent
Supplying of medical gas line ball valve, assembles shall be constructed of a nickel plated brass body, approved type seal and a chrome plated ball. The valve shall be operated by a manual operating level selected through 90 degrees. Valves shall be operated by a lever-type handle requiring only quarter turn from a fully open position to a fully closed position. Ball valves shall be equipped with washed and degreased copper pipe stub extension at both the inlet and the outlet sides of the valve port to facilitate installation. Valves should be designed in such a manner that it can be swung-out during installation so as to prevent damage due to heat transfer during the brazing operation. Each valve assembly shall be washed and degreased for medical gas service. All ball valves shall provide a full bore flowing be properly cleaned and tested. The valves shall be complete with necessary adapter, bonded seals, sockets and other accessories.
(a)
15 mm dia
no.
14
(b)
22 mm dia
no.
4
(C)
28 mm dia
no.
2
4.00
COPPER PIPE WORKS
Country of origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: Manufactured to BS EN 13348 (which replaced BS 2871), BS EN 1057 or equivalent.
Supplying & Installation of medical grade copper pipe complete with all necessary pipe fittings such as bends, tees, reducers, sockets etc. as per drawing and direction. The medical grade copper should be degreased copper tubes to BS EN 13348 (which replaced BS 2871), BS EN 1057 or equivalent. The concealed pipes shall be covered with PVC pipe/MS pipe and shall be installed with proper supports, clamp as per site condition and complying standards. Pipework shall be flux less brazing with inert gas (Nitrogen) purging. The pipe should be color coded as per our National standard. Pipework shall be tested unto the recommendation and direction of the consultant and Engineer in charge. All copper pipe and fittings must be medical grade and the same brand and country of origin. Non-medical grade copper pipe and fittings will not be allowed.
(a)
15 mm dia. (Outer), thickness 0.7 mm
meter
260
(b)
22 mm dia. (Outer), thickness 0.9 mm
meter
70
(c)
28 mm dia. (Outer), thickness 0.9 mm
meter
20
5.0
MANIFOLD CONTROL SYSTEM
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: HTM-02/2022/NFPA-99 or Equivalent
Supplying & Installation of manifold control system (MCS) shall supply medical gas from both left and right-hand manifold bank. The operation and performance criteria shall fully satisfy the requirements of following standard. The MCS shall operate at a maximum inlet pressure of 20,000 kpa and provide a distribution system pressure of 345 kpa-800 kpa. Either the left- or right-hand manifold bank may be designated "duty" or the MCS shall manually type change over to supply the distribution system from the "stand by" bank when pressure in the duty bank falls to 800-2000 kpa. The distribution flow capacity of the manifold is minimum 1000 litter/min.
The pressure control cabinet shall contain dual pressure regulators and switches that assure an uninterrupted, regulated flow of gas to the pipeline. The cabinet shall have two analog pressure gauges, one for each supply side and one for the pipeline delivery pressure.
High pressure gauges shall indicate gas contents in the respective manifold cylinder bank and a supply pressure gauge shall indicate -distribution pressure. The supply system shall be protected by 25 micron fillers with replaceable elements and a pair of matching pressure relief valves shall be provided.
The header bars shall be modular in design, allowing for future expansion. Each inlet port shall be equipped with an individual check valve and each brass header bar shall include a master shutoff valve to shut off the gas in emergency situations. Cylinder connections shall have a stainless-steel mesh covering and be flexible to facilitate cylinder alignment with the header bar and include gas specific CGA fittings on each end.
Piping regulators and control switchover components shall be cleaned for medical gas service. Medical Air manifold shall be equipped with copper pigtails.
(a)
Manual manifold control system with 2x6 cylinder ramp for Medical Air
set
1
6.00
MEDICAL GAS AREA ALARM
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: HTM-02/2022/NFPA-99 or Equivalent
Supplying of area alarm which shall be microprocessor based with individual microprocessors on each display and sensor board. The sensors should be capable of local (in box) or remote mounting. Each sensor and display unit shall be gas specific, with an error message display for an incorrect connection.
The area alarms shall be of modern construction and field expandable with the addition of extra modules. Up to six services (LED) / eight services (LCD) can be accommodated as per standard box. The alarm system shall have an audible warning which shall operate simultaneously with any failure indication and a mute facility shall be provided. Each specific service shall be provided with an LED digital / LCD read-out comprising of 0-250 psi [0-1724 kPa] for pressure and 0-30"Hg [-100-0 kPa] for vacuum. The digital read-out should provide a constant indication of each service being measured. Each gas service shall be displayed by colored LEDs, to show normal, low- and high-pressure conditions and also have to be digitally numeric readout. Failure indicators shall be displayed by flashing light and the normal indications shall be steady. 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 should move up and down in the "GREEN" range depending on service usage. If an alarm occurs, the "RED" alarm light shall flash and the audible alarm shall sound. Pushing the "ALARM MUTE" button shall cancel the audible alarm, but the unit shall remain in the alarm condition until the problem is rectified. In addition, "TEST" & "ALARM MUTE" buttons shall be easily accessible to operate and test the unit
The system shall satisfy the following standard. The gas failure alarm system shall be installed at the location shown in the drawing with necessary service failure sensors compatible with the gas alarm system, sensor cable and shall be complete with all necessary accessories.
(a)
Area alarm for 3 service (Oxygen, Medical Air & Medical Vacuum)
set
1
7.0
DOWN STREAM EQUIPMENT (OXYGEN FLOW METER)
Country of Origin: To be mentioned
Port of shipment: Origin & shipment should be same country.
Manufacturer: To be mentioned
Model and brand: To be mentioned
Standard: BS EN ISO 9170-1:2020
set
20
Supplying and installation of direct probe Oxygen flow meter complete with high precision metering valve, high impact polycarbonate flow tubes, black glass float and reusable steam auto cleavable bubble humidifier, face mask, nipple tubing etc. and flow rate shall be 0 to 15 liter/min and inlet pressure 4 bar ± 10%. The Flowmeter should be chromed brass bodied, and the controlling NOBE must be Metallic. Each set flowmeter must supply 10 sets of disposable oxygen masks with oxygen flow tubing.
8.00
Preparation/renovation of Medical Air Plant Room with necessary civil and electrical works
Job
1
9.00
Installation of the total system including marking, color coding, copper jointing, testing & commissioning of the system
job
1