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TECHNICAL SPECIFICATIONS1.0 INTRODUCTION
The Vacuum Drying System is used for drying test articles for Rocket
Engines under vacuum condition after flow characteristic testing with water. This
is to ensure that the test articles are free from water traces after the water flow
tests. The vacuum drying system mainly consists of 2 Nos. of Vertical Vacuum
Chambers I & II, Vacuum Pumping system, Heating System and Instrumentation &
control system. The vacuum drying operation is carried out in one chamber at a
time. The existing Thyristor Power controller, Instrumentation & Control system
has become obsolete and hence, the same has to be replaced with Digital control
& Instrumentation system. Schematic diagram of the Vacuum Drying System is
shown in Figure-1
2.0 SCOPE OF WORK
The scope of supplier includes Supply, Installation, and Testing & Commissioning
of Digital Control & Instrumentation system for the existing vacuum drying
system. The scope of supply also includes following major components.
Sl No. Item Description Qty
1. Pirani Vacuum gauges 3 Nos.
2. Capacitance Manometer Vacuum gauges 2 Nos.
3. ‘k’ type thermocouple temperature sensors 7 Nos.
4. PT-100 RTD type temperature sensors 4 Nos.
5. Thyristor Power Controller/ Regulator 2 Nos.
6.PLC system consisting of IO modules, PID controllers,
Temperature indicators/controller etc1 Lot
7. SCADA Control system with licensed software 1 Set
8. Temperature Transmitters for TC and RTD 11 Nos.
9. Industrial PC with rack mountable monitor 1 No.
10.MS Power coated panel for housing the Power & PLC
components1 No.
11. Power, Control & Instrumentation Signal Cables 1 lot
12.Electrical switchgears, push button stations, selector
switches1 set
13. Water flow switches & pressure switches 1 Set
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• The supplier shall supply the digital Control & Instrumentation system that
can control both of vacuum champers I & II in closed loop operation.
However, only one chamber will be operational at a time by selecting the
selector switch and SCADA system.
• The existing Vacuum chambers I & II with Quartz infrared lamps inside,
vacuum valves, vacuum pumping system shall be retained.
• Removal of the existing control system with panel (Dimensions: 2200 mm
X 1800 mm X 450 mm, weighing 450 kg), power, control & sensor
cables, Indoor 18 kVA & 42 kVA, 420V / 185V, Transformers (2 Nos.)
etc. The work includes mounting of new sensors, making interfaces for
new sensors to new panel, & laying of necessary interconnecting power
& instrumentation cables shall be the scope of the Supplier. The details
of list of components to be retailed/to be replaced as per Annexure – 1.
3.0 DETAILS OF EXISTING VACUUM DRYING SYSTEM
The Vacuum drying system mainly consists of
1. Two vertical vacuum chambers I & II, vacuum valves,
2. Thyristor controlled Heating system with Quartz infrared lamps inside the
vacuum chambers I & II.
3. A common vacuum pumping system
4. Instrumentation and control system with PLC with SCADA & PC operation
and data acquisition
3.1 EXISTING VACUUM CHAMBER - IVertically mounted vacuum chamber, fabricated out of AISI 304 stainless
steel material.
Dimension: 2000 mm diameter
1600 mm cylindrical height
2300 mm total height
Heating system
The chamber - I heating system consisting of 42 Nos. of Infrared lamps (1
kW each). The IR lamps are arranged in 3 rows, each row consists of 14
lamps. Each lamp is mounted inside a reflector box to radiate maximum heat
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to the job being dried. The operating voltage of the heating of the heating
system is limited to 170 V AC in order to avoid arcing problem in vacuum.
3.2 EXISTING VACUUM CHAMBER – IIVertically mounted vacuum chamber, fabricated out of AISI 304 stainless
steel material.
Dimension: 700 mm diameter
600 mm cylindrical height
850 mm total height
Heating system
The chamber - I heating system consisting of 18 Nos. of Infrared lamps (1 kW
each). The IR lamps are arranged in 3 rows, each row consists of 14 lamps. Each
lamp is mounted inside a reflector box to radiate maximum heat to the job being
dried. The operating voltage of the heating of the heating system is limited to 170 V
AC in order to avoid arcing problem in vacuum.
3.3 EXISTING VACUUM PUMPING SYSTEM
A dry vacuum pump is used to evacuate the vacuum chamber to a minimum
vacuum level of 10 mbar inside the chamber.
VACUUM PUMP DETAILS:
Type Dry Pump
Pumping speed 91.5 m³/hr
Ultimate Vacuum 3 x 10-2 mbar
Maximum continuous inlet pressure 1013 mbar
Power Supply 3-Phase, 50 Hz, 415 V
Make Edwards,UK
Model QDP 80 Edwards Drystar
Power @ ultimate pressure 3.6 kW
Inlet/ outlet Flange ISO 100/ ISO 63
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3.4 EXISTING VACUUM VALVES
a. An electro pneumatically operated right angle valve V5 of 3” size is provided in
the evacuation line. The opening and closing of valve is interfaced with RTD
temperature measuring instrument.
b. Two nos. of electro pneumatically operated proportional control valves (PCV1, 6”
& PCV2, 3”) are provided in the evacuation line to control the vacuum level
inside the chamber – I and II based on the set values from 10 mbar to
1000 mbar. This will open/close based on signal from vacuum controller. This
valve has I/P convertor and accepts 4-20mA from the vacuum controller which in
turn operates on signal from capacitance type vacuum gauge to control vacuum
level inside the chamber.
3.5 EXISTING HEAT EXCHANGER WITH CONDENSATE COLLECTOR
The inlet and outlet of heat exchanger will have “k” type T/C temperature sensor
to measure the inlet and outlet temperature of gases coming from the chamber and
one more T/C temperature sensor is provided at the outlet of the vacuum pump.
This T/C will give a feedback signal to electro pneumatic isolation valve, V5 in the
evacuation line to open/close depending on the temperature of hot air coming from
the heat exchanger.
3.6 VACUUM MEASUREMENT (SUPPLIERS SCOPE)
Vacuum measurement is made by means of active gauge controller of Edwards
/ PIEFFER/ ALCATEL make which will accept three nos. of pirani gauge heads.
Pirani gauge will have a measuring range from 1000 mbar to 10 mbar while
capacitance manometer will have a measuring range from 1000mbar to 1mbar. Out
of three pirani gauge heads one gauge head is mounted near to the inlet of pump
while other gauge heads are mounted on the Chamber - I & Chamber - II.
Two nos. of capacitance type absolute pressure gauge sensors having
measuring range from 1000 mbar to 1 mbar are to be provided. Out of 2 sensor
heads, one sensor head is mounted on the chamber – I and other on the chamber –
II. This provides signal to PLC which in turn provides signal to proportional control
valves (PCV1/ PCV2, existing at Purchasers site) to control vacuum inside the
chamber I or chamber II.
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3.7 HEATING SYSTEMS
Heating system for Chamber – I (existing): Heating system has Infrared Lamps
(Halogen lamps, PHILIPS make) of about 42 nos. of 1 kW each. Each lamp is
mounted inside a reflector box to radiate maximum heat to the components.
Heating system for Chamber – II (existing): Heating system has of Infrared Lamps
(Halogen lamps, PHILIPS make) of about 18 nos. of 1 kW each. Each lamp is
mounted inside a reflector box to radiate maximum heat to the components.
The power to the heater is to be smoothly controlled by Thyristor power
controller/Regulator of Makes AEG, Schneider, Siemens, Eurotherm (Supplier’sscope) which operates in closed loop with a signal from temperature sensor. The
Microprocessor based temperature programmable controller shall take feedback
from Thermo couple temperature sensor provided in the chamber. Moreover one
over temperature indicator & controller and two nos. of digital temperature indicator
are also required in the Digital control system panel.
3.8 INSTRUMENTATION & MEASUREMENT
The Digital Control System shall have provision to monitor the pressure,
temperature parameters and controls the vacuum drying system operation by
commanding the solenoid valves, pneumatic valve and control valves. The
operations shall be carried out in Manual mode and or Auto mode where the
operations are carried out in a predefined sequence of time. Also the measurement
parameters like vacuum pressure, temperature and command status for flow
switch, pressure switch, and status indicators are to be logged in the computer.
The Digital control system shall be a standalone PLC based control system in
which operations are carried out through SCADA (Supervisory Control and Data
Acquisition) system. The data shall be logged in high configuration Industrial PC
with rack mountable monitor and from which SCADA is operated and PLC is
programmed.
Separate mimic pages shall be provided to operate the Vacuum Drying
Chambers I & II. Computers shall be loaded with only licensed software & other
software. All the command system chains for control valve and status of pneumatic
valves to be realized with isolators and outputs to be acquired in PLC based data
acquisition system. Requirements of command system are given below.
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The supply of PLC Controller, I/O modules, power modules, communication
modules, SCADA station, power suppliers and other accessories if any are under
the scope of the Supplier. The development of SCADA as per the requirements,
installation, commissioning, laying of electrical and instrumentation cables, routing
of cables in cable tray from Vacuum drying chambers to the Digital Control system
panel is under the scope of the Supplier.
Valves (Existing at Purchaser’s site and to be retained)Proportional Control valves : 2 Nos.
Pneumatic valves : 7 Nos.
Solenoid valves : 2 Nos.
Sensors/gauges (Supplier’s scope)Vacuum gauge (Pirani type) : 3 Nos.
Vacuum gauge (Capacitance type) : 2 Nos.
Thermocouple temperature sensor : 7 Nos.
RTD type temperature sensor : 4 Nos
4.0 SPECIFICATION OF SENSORS/GAUGES
4.1. Pirani vacuum gauges (3 Nos.)
EDWARDS make active pirani vacuum gauge, model No: APG100 or
PIEFFER/ ALCATEL make of the following specification.
Mass : 85 gms
Internal volume : 5 cc
Enclosure : IP40
Measurement range : Atmosphere to 10-3 mbar
Power consumption : 1 W
Output signal : 0 to 10 V DC
TIC Instrument controller
Electric supply : 90 to 264 AC, 50 Hz
Power consumption : 3 head TIC 55 VA
Analogue output : 0-10 V DC, The TIC has two built-incommunication protocols, RS232and RS485
Interface of sensor : DN 16 ISO -KF
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4.2. Capacitance type vacuum gauges (2 Nos.)
Apart from pirani gauge, smart type vacuum pressure transmitter of YOKAGAWA
make, Model No: EJX 610A or INFICON make, Model No: CDG025D-DN16 ISO-KF
375-001 or equivalent make of following specification shall be provided.
Type : SMART Vacuum Transmitter(Capacitance type)
Measurement range : 1000 mbar to 1 mbar
Service medium : Air/ GN2
Output : Two wire 4 -20 mA withsuperimposed Digitalcommunication HART protocol.
Power supply : 12 to 40 V DCIndication : 41/2 digits LCD – Local Alpha
Numeric Digital Display inengineering unit.
Protection : Weather proof
Zero & span : Zero & span are to be adjusted fromthe Hand held HART communicatorand provision for local adjustment.To be set anywhere within the rangelimits
Failure mode alarms : High Alarm ≥ 21.0 Ma,Low Alarm ≥ 3.6 mA
Accuracy : ± 0.1% of Calibrated Span(Including the effect of Linearity,hysteresis & Repeatability) for spanless than 10:1
stability : ± 0.1 % of URL for 24months or ≤ ±0.02 of URL for 60 months
Interface of sensor : DN 16 ISO –KF
4.3. RTD type temperature sensor (4 Nos.)
4- wire PT-100-RTD is used for temperature measurement in the range of 0 to 300°Cwith accuracy of ± 3°Cincluding sensor. The output of transmitter is 4 to 20 mA. TheSpecifications of PT 100-RTD sensor is given as below.
Type : Platinum RTD (PT100)
Quantity : 4 Nos.
Sensing Element : Platinum
Temperature Range : 0 - 300°C
Resistance at 0°C : 100.0 ± 0.25 ohms
Accuracy Class : Class ‘B’
Basic Sensor Error : ± 2°C of 0 - 300°C
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Insulation resistance : > 20 MΩ
Thermal response : < 2 sec
Lead Configuration : Connectors / 4 wires
Sensor Configuration : Probe type
Interface of sensor : DN 16 ISO-KF
4.4. Thermocouple temperature sensor (7 Nos.)
Type : K-type
Temperature Range : 0 - 300°C
Resistance at 0°C : 100.0 ± 0.25 ohms
Accuracy Class : Class ‘B’
Basic Sensor Error : ± 2°C of 0 - 300°C
Insulation resistance : > 20 MΩ
Thermal response : < 2 sec
Lead Configuration : Connectors / 4 wires
Sensor Configuration : Stainless steel Sheathed, Flexible,Diameter- 3 mm, length-3 m(Job temperature sensor)
Interface of sensor (4 types of
interfaces for total 7 Nos. of
sensors)
1) Stainless steel flange,Dimension: Ø 165 mm, thick: 12 mm,P.C.D–145 mm, No. of Ø 9 mm holes -8 Nos.on P.C.D (for one sensor)
2) Stainless steel flange,Dimension: Ø 110 mm, thick: 12 mm,P.C.D – 90 mm, No. of Ø 9 mm holes - 4 Nos.on P.C.D (for one sensor)
3) Stainless steel flange,Dimension: Ø 145 mm, thick: 12 mm,P.C.D – 125 mm, No. of Ø 9 mm holes- 4 Nos.on P.C.D (for 2 sensors)
4) Stainless steel DN 25 ISO-KF(for 3 sensors)
4.5. Temperature transmitter
Rosemount make, (Model No: 3144P) or equivalent make shall be used for thesystem integration and data acquisition. The specification of temperaturetransmitter is given below
Digital Accuracy : (+ 0.10°C / +0.18°F) for PT 100 RTD
Stability : + 0.1% of reading
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Input : 4-wire RTD
Output : 4-20 mA/ HART protocol
Supply Voltage : 24 V dc
5.0 SPECIFICATION OF DIGITAL CONTROL SYSTEM:
The specification of Digital control system to be supplied is given below. By operating the
Vacuum drying system with Digital Control system, thermo vacuum drying of test articles
shall be carried out. Industrial PC with rack mountable monitor should be provided to
control field element and for data acquisition.
5.1 Salient Features of Control System
Standalone PLC based control system
Cycle Time : 100 msec
MIMIC updating within 1 sec
Command generation with 500 msec interval
Conditional based logics and Safety Interlocks
Preferred Makes: Siemens/ Schneider/ Allen Bradley / ABB / Eurotherm
5.2 Analog Input Module
a) Analog input cards shall be provided to accept 0-10V DC, 4-20 mA,
b) No. of channels: 4/ 8/16 per module.
c) Resolution : >14 bits
d) Input Impedance:
• ≥ 1 M ohms for voltage input
• ≤ 250 ohms for current inpute) Overall Accuracy: Better than ± 0.2 %
f) Conversion Time: < 75 msec
g) Electrical Isolation:
• Input to PLC > 250 VRMS
• Isolation Resistance: Input to PLC & channel to channel > 5 M ohms
5.3 Analog Output Module
a) No. outputs: 4/ 8/16 per module
b) Output Signal:4-20 mA optionally configurable for 0-10 V
c) Resolution:≥ 12 bits
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d) Conversion time for all channels: <100 msec
e) Overall Accuracy:≤± 0.5 %
f) Load Resistance:< 500Ω
g) Electrical Isolation: Output to PLC & channel to channel >250 VRMS
5.4 Digital Input Module
a) No. of inputs: 8/16/24/32 per module.
b) Input voltage (Nominal): 24 V DC
c) Input voltage (Maximum): 30 V DC
d) Switching Threshold
• Low : < 5V
• High : > 10V
e) Input Resistance : > 2 KΩ
f) Switching Delay : < 5 msec
g) Input Current : < 10 mA
h) Isolation :
• Input to PLC : > 250 VRMS
• Group to group (groups of 4/8/16): 150 VDC to be provided.
5.5 Digital Output Module
a) No. of Outputs : 8/16/24/32
b) Type : Transistor
c) Output Voltage : 24 V DC (nominal)
d) Minimum Voltage : 20 V DC
e) Maximum Voltage : 30 V DC
f) Overload Protection : to be providedg) ON/OFF Switching Delay : < 3 msec
h) Continuous Current Per Output : > 0.5 A
i) Electrical Isolation :
• Output to PLC : ≥ 250 VRMS
• Group to group (groups of 4 or 8): to be provided.
The PLC shall do the following operations
Reading of signal from sensor
Output Setting
On-line diagnostics
Execution of application program in Auto Mode/ manual mode
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Communication between I/O modules & processor
Software PID loops.
Closed loop control operation
• Necessary communication interfaces and protocols to be provided to
communicate between the PLC and PC. Life time license to be provided
for PLC and SCADA software. The data has to be stored and retrieved
and processed to view the data in print out format for various
operations carried out as time Vs parameters.
• Temperature has to be controlled within a specific duration. Program to be
provided such that it should be with user friendly menus to vary the set
value and time through SCADA. Alarm indicators along with hooter are to
be provided for over temperature limit. Control accuracy for temperature
should be better than ±10°C of the set value for the temperature sensors
for chamber/ Article. Hooter/ Alarm for Over temperature shall be provided.
• PLC shall have PID loops to control the temperature inside chamber in
closed loop using temperature sensor measurement as feedback.
• Vacuum pressure also to be controlled by PLC based PID in closed loop
with vacuum measurement as feedback. Necessary interlocks & alarms to
be provided.
• The control accuracy should be better than ±5 mbar of the set value.
Alarm indicators are to be provided.
• All the application softwares should be developed by the supplier and
source code to be provided for future modification
• Application software shall be developed by the party as per the requirement
for control operation of vacuum drying system.
• Mimic pages in SCADA should be developed as per the schematic diagram
by the supplier.
5.6 Control console
The Digital control console should be provided with following features:
1. Manually operated push button switches for pumps, valves with indicator lamps.
2. Process logic controller.
3. Mimic diagram with status indication of valves, pumps, heaters, pneumatic
supply and water supply.
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4. Alarm and indication lamps for cooling water, Command gas utility failure,
temperature with reset push button.
5. Temperature programmer controller.
6. Digital temperature indicator controller with thermocouple temperature sensor for
over temperature protection.
7. Digital temperature indicators with thermocouple temperature sensor for
chamber – 1 & Chamber – 2.
8. Digital temperature indicator controller with thermocouple temperature sensor at
outlet of heat exchanger for over temperature protection.
9. Emergency stop switch shall be provided in the Digital control panel.
5.7 Monitoring Station & Software
1. Industrial PC with rack mountable type 19” monitor with Intel core i7 processor,
8 GB RAM, 1TB Storage, PCI slot, PCI Express slot etc for SCADA operations
are to be placed in the supplied panel itself.
2. Keyboard and mouse interface shall be provided for the monitoring station.
3. PLC programming software.
4. Application software.
5. SCADA software.
6. Data logging & Data processing software.
7. 1kVA online UPS for control system power supply.
5.8 MS Power Coated Panel
The panel is shall be made of MS Power coated sheet made which houses allElectrical switch gears, Thyristor Power regulators, PLC I/O modules, indicationlamps, current and voltage meters, energy meter and overall process mimicdiagram with indications and necessary panel cooling fans.
5.9 Safety interlocks and alarms to be incorporated in control system panel
1. A door switch is available in both chambers I & II, so that Isolation valve and
lamp heater will not operate when the top lid is in open condition. This is
achieved by using a door switch on the chamber flange.
2. An interlock is provided between air Admittance valves V1, V2, V3 & V4 and
isolation V5 valve such that isolation valve will not open when the air Admittance
/vent valve in open position.
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3. A over temperature controller with thermocouple temperature sensor shall be
provided to sense the over temperature and give signal for heater power supply
to switch off.
4. A digital temperature indicator controller with thermocouple temperature sensor
shall be provided at the outlet of the heat exchanger to sense the over
temperature and give signal for isolation valve to close.
5. Proportional control valve shall open/close to maximum/ minimum level based
on signal from vacuum pressure gauge through its set point and thus will
achieve the desired vacuum level inside the chamber.
6. Water flow switch and pressure switch are to be provided in the cooling water
line to switch off the system in case of reduced water flow/water failure or
pneumatic supply failure.
7. Solenoid operated isolation valve, EPV7 between heat exchanger and
condensate trap will open this is achieved through PLC.
5.10 Alarms (Hooter with light indicator):
The following alarms with hooter & light indicator are to be provided in the system.
a. Alarm for over temperature inside the chamber.
b. Alarm for high temperature at the pump inlet.
c. Alarm for low water flow/ low water pressure in case of water failure.
d. Alarm for low Pneumatic pressure.
5.11 Manual mode operations (to be enabled):
Manual mode of operation shall be enabled in the new control system as givenbelow by overriding the Automatic sequence mode of operation of the vacuumdrying system.
• Manual mode/ Auto sequence mode selection switch.
• Switch for selection of Chamber I or II for heating and vacuum drying operation.
• Manual switch for starting vacuum pump.
• Setting of required Vacuum level and temperature manually on the Vacuum &
Temperature controller.
• Manual switch for Electro pneumatic valves.
5.12 Auto mode operation required:
• Manual mode / Auto mode selection switch on the front panel.
• Main Miniature Circuit Breaker, MCB on /off switch
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• Alarm/ Indicator system for all the utilities like water pressure (< 0.5 bar g), air
pressure (< 7 bar g) etc.
• Selector switch for local or remote mode to operate the system either from the
front panel or through PC
6.0 PRE DELIVERY INSPECTION & TESTING AT SUPPLIER’S SITE
The Digital Control system, Controllers, PLC, PID etc. shall be subjected to
necessary Electrical checks, Electronic calibration / tests etc. at Supplier’s
site and shall be witnessed by Purchaser’s Representative. After
satisfactory completion of the above activities “Pre-Delivery Inspection
Report” shall be released, jointly by Supplier & Purchaser’s
Representative. Upon release of Pre-Delivery Inspection Report, Purchaser
will issue “Purchaser’s delivery clearance”. The Supplier shall transport the system
from their factory to IPRC.
7.0 INSTALLATION, COMMISSIONING AT PURCHASER’S SITE
Required skilled / unskilled labourers for installation & commissioning also should
be deployed by the supplier.
After the completion of erection of the system, the supplier has to commission the
system and carry out performance tests in the presence of Purchaser’s Engineers.
The commissioning and acceptance includes the following:
• The electrical circuits are to be energized to ensure satisfactory operation of
Digital Control System and Thyrister Controller, PLC etc.
• The heating system in the vacuum chambers I & II should be tested to
prove the specified requirements. The test article of weight 100 kg should be
heated to 120o C in 30 minutes. The function of controller has to be
demonstrated at site.
• Vacuum chambers I & I I are to be evacuated to required level of
operating vacuum, 100 mbar & 10 mbar by vacuum pump within 30 minutes.
• All safety interlocks, switches and alarms in the system are to be operated
under simulated conditions to ensure satisfactory functioning
• All the spares, consumable items, etc. required for commissioning should be
arranged by supplier. Special tools, devices and equipments required for
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satisfactory installation & commissioning to meet the stipulated specification &
performance should be brought by the supplier.
8.0 TRAINING
After completion of installation and commissioning, training for the operations &
maintenance of Digital Control system of Vacuum Drying System is to be given to
IPRC’S Engineers for a period of 3 days which includes
Mechanical/Instrumentation/Electrical system.
9.0 SPARES
Spares required for trouble free operation & maintenance of the Digital control
system to be listed down by the Supplier with price break up.
PREFERRED MAKES
SlNo. Name of Component Makes
1. Active pirani vacuum gauge EDWARDS APG100/PIEFFER/ALCATEL
2. Capacitance type vacuum gauges smart type vacuumpressure transmitter
YOKAGAWA EJX 610A /INFICON CDG025D-DN16ISO-KF 375-001
3. Temperature transmitters Rosemount make 3144P orequivalent
4. Programmable Logic Controller with SCADA Siemens, Schneider, AllenBradley, ABB, Eurotherm
5. Thyristor Power Regulator/Controller AEG, Schneider, Siemens,Eurotherm
6. MCCB, MCB, Contactors & Push buttons, selectors etc Legrand, Siemens, ABB,Schneider,
7. FRLS Power & Control cables Polycab, Finolux, LAPP,Gloaster, CCI, RPG, RR Kable
8. Instrumentation Signal cables TEMPSENS or equivalent
SPECIAL CONDITIONS FOR SUPPLY, INSTALLATION, COMMISSIONING& TESTING OF DIGITAL CONTROL SYSTEM FOR VACUUM DRYING
SYSTEM (60 kW)
1. PRE BID MEETING
Within 2 weeks from date of floating of tender, it is proposed to brief all
interested bidders on the requirements of this work at IPRC, Mahendragiri and
the exact date will be intimated after tendering. Bidders interested to participate
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in the pre-bid meeting shall communicate their willingness in writing to Head,
Purchase & Stores immediately on receipt of this document. Tender of a firm
which is not attended the pre-bid meeting shall be considered for disqualification.
• Guarantee/WarrantyThe Digital Control system shall be guaranteed/ warranted for satisfactory
performance over a period of 18 months from the date of dispatch from the
vendor’s factory or 12 months from the date of commissioning at the
purchaser’s site, whichever is earlier. System program modification / update if
any during the Guarantee/warranty period is under the scope of the Supplier.
Supplier should furnish a Performance Bank Guarantee (PBG) for 10% of the
purchaser order value for the same till the expiry of the guarantee period.
• DocumentationThe following documents (3 copies, in English both softcopy & hard copy) should
be provided by the supplier at different stages specified thereupon:
.1. Along with Techno commercial bid (Part-I): The following documents shall
be provided:
A complete technical description along with schematic and wiring diagrams,
drawings & catalogues of the Digital Control system quoted.
Deviations, if any, from the tender enquiry specification shall be explicitly
spelt out. Otherwise it will be presumed that the offer is as per tender
specification.
The company profile of the vendor highlighting the following:
i. Status as to whether the vendor is a Control system manufacturer,
trader, dealer, stockiest, agent, etc.
ii. Infrastructural facilities such as factory area, machineries, equipments,
material handling devices, instruments, tools, tackles, etc owned by
the vendor.
iii. Previous experience: Bidder shall submit evidence of previous experience
in the form of Purchase order for Digital Control system for Vacuum Drying
System or any other Machinery supplied elsewhere.
iv. Clientele: specifying the clients to whom the vendor has supplied similar
Digital control system indicating their address, telephone, fax, email,
contact person, etc.
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Note: The bidder strictly should not indicate the price break-up details in Techno-Commercial bid (Part-I), otherwise the bid will be summarily rejected.
2.2 Along with Price bid (Part-II)The bidder shall indicate the price break-up details for each of the components
of Control system, sensors, panel, cables, etc and installation, testing &
Commissioning charges, spares price, freight, taxes & duties, packing &
forwarding charges, etc. only in the Price bid (Part-II).
2.3 Upon satisfactory completion of Pre Delivery Inspection of the Digital Controlsystem: “Pre-Delivery Inspection Report” shall be released, jointly by
Supplier & Purchaser’s Representative. Upon release of Pre-Delivery
Inspection Report, Purchaser will issue “Purchaser’s delivery clearance”. Only
upon receipt of the same, the vendor shall proceed with delivery of the Digital
Control system.
2.4 Along with the Consignment: The following documents should be provided
I. Instruction manual for Installation, operation, service / maintenance
(including trouble-shooting) of Digital Control system.
II. Instruction manuals (in English) for control system & controllers
II. Instruction manual for PLC software and hardware
III. Wiring diagrams of the Instrumentation system
V. Installation CD for PLC softwares
VI. Guarantee certificate.
VII. Wiring diagrams of the Electrical system including panel.
3. Packing & Forwarding:
The Digital Control system and accessories shall be packed in proper containerand secured rigidly to ensure safe transportation without any damage fromSuppliers site to IPRC.
4. Completion period:
Completion period shall be 6 Months from the date of Purchase Order.
**************
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Annexure - 1LIST OF EQUIPMENTS TO BE RETAINED/ REPLACED
MECHANICAL
Sl.No.
Item Description To be Retained To be Replaced
1. Vertically mounted Vacuum Chamber – I √ --
2. Vertically mounted Vacuum Chamber – II √ --
3. Dry Vacuum pump √ --
4. Heat Exchanger √ --
ELECTRICAL
Sl.No.
Item Description To be Retained To be Replaced
1. 72 Nos. of 1kW IR lamp for Chamber - I √ --
2. 30 Nos. of 1kW IR lamp for Chamber - II √ --
3. 42kVA, 420V/185V Transformer -- √
4. 18kVA, 420V/185V Transformer -- √
5. 100Amp, MCCB -- √
6. Ammeter, Voltmeter, Energy meter -- √
7.Panel and accessories like selector switches,Push buttons, Indication lamps, fuses etc.,
-- √
8. Thyristors and its control panel -- √
9. Power & control cables feeding to panel -- √
INSTRUMENTATION
Sl.No.
Item Description To be Retained To be Replaced
1. Electro Pneumatic Valves (7 Nos.) √ --
2. Solenoid valves (2 Nos.) √ --
3. Proportional Control valves (6’’ size, 4 - 20mA) √ --
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4. Proportional Control valves (4’’ size, 4 - 20mA) √ --
5. Pirani Gauges (3 Nos.) -- √
6. Capacitance Manometers (2 Nos.) -- √
7. k- Type thermo couples (7 Nos.) -- √
8. PT-100 RTD type temperature sensors (4 Nos.) -- √
9. EDWARDS active gauge controller (1 Nos.) √ --
10. Instrumentation & Sensor Cables -- √
11. Temperature programmer controller (2 Nos.) -- √
12. Over Temperature indicator controller (2 Nos.) -- √
13. Digital temperature indicator (4 Nos.) -- √
14. Vacuum controller (2 Nos.) -- √
15.Exchanger outlet temperature indicatorcontroller (1 Nos.)
-- √
16.Exchanger inlet temperature indicatorcontroller (1Nos.)
-- √
17.DRY pump Exhaust temperature indicator
(1 Nos.)-- √
20
Chamber - 1 Heater Configuration Diagram
Chamber - 2 Heater Configuration Diagram