4 Main Inlet Valve 6z52m
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GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
4.
MAIN INLET VALVE AND ACCESSORIES (SPHERICAL VALVE)
4.1.
Guaranteed Technical Particulars
ITEM
DESIGNATION
UNITS
VALUE
1.
General
1.1
Manufacturer/ Type designation
-
Voith /Fouress /TBHydro /Hongcheng
1.2
Place of Manufacturer
-
During detailed engg.
1.3
Applicable standards
-
IS/DIN/Voith norms
2.
Main data
2.1
Maximum leakage from main valve when fully closed against maximum head of 396.2 M (with new seal) through service seal
L/min
3
through maintenance seal
L/min
3
Maximum leakage from by valve L/min at mentioned head of 396.2 M
During detailed engg.
2.2
Maximum head loss through the valve m at a flow required for rated turbine output at rated net head
Value - during detailed engg. (negligible being spherical valve)
2.3
Maximum torque required to close the valve with a flow corresponding to rated turbine output at rated net head
Nm
During detailed engg.
specified turbine overload output at rated net head
Nm
During detailed engg.
Rated turbine output at maximum head of 400.70 m
Nm
During detailed engg.
Rated turbine over load at maximum head of 400.70 m.
Nm
During detailed engg.
SAINJ HEP
1
REMARKS
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
DESIGNATION
2.4
Main dimensions of shut-off valve
UNITS
VALUE
inside diameter length of valve body (excluding extensions) maximum distance from horizontal centreline of valve to lowest portion of assembly
mm mm
1200 ~1720
mm
During detailed engg.
2.5
Lowest factor of safety (referred to design yield stress) for any hydraulically loaded part of the valve
-
2.6
Valve operating oil pressure
2
minimum
Kg/cm2
~80
maximum
Kg/cm2
~120
rated
Kg/cm2
During detail engg
3.
Oil pressure unit(OPU)
3.1
Number of main oil pumps
Nos.
3.2
Type of oil pumps
-
3.3
Oil pump discharge
Fixed displacement
L/min
~85
at pressure
Kg/cm2
120
3.4
Power rating of main pump motor
kW
~22
3.5
Type of pressure switches
-
Diaphragm
4.
Pressurised accumulator tank
4.1
Total oil volume
L
~375
4.2
Design pressure
Kg/cm2
120
4.3
Minimum possible operating cycles of shut-off valve(close-open) without recharging tank
2
For operating load case
2
capacity
SAINJ HEP
REMARKS
(close-open -close)
MIV servomotor is single acting and closing by counter weight
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
DESIGNATION
UNITS
4.4
Dimension of tank (Height X Dia.)
mm mm
5.
Sump tank
5.1
Total oil volume
L
5.2
Size of sump (L X W X Depth)
mm mm mm
6.
Hydraulic oil
6.1
Total quantity of Hydraulic oil required for complete system including servomotor
L
~800/unit
6.2
Oil quantity
L
~880/unit
4.2.
VALUE X
During detail engg
~800 X X
During detail engg
With 10% margin
Informative data
ITEM
DESIGNATION
1.
Servomotor
1.1
Make
-
1.2
Nominal design oil pressure
Kg/cm2
1.3
Active volume
m3
43.31
2.
Guaranteed closing time of MIV at rated load and rated head of 396.70m
Sec
During detailed engg.
Guaranteed closing time of MIV at overload of (110%) and maximum head of 400.70m
Sec
Guaranteed maximum opening time at rated head
Sec
UNITS
Sec
Weights
SAINJ HEP
VALUE
Reputed make 120
During detailed engg.
Guaranteed maximum opening time at maximum head of 400.70 m 3.
REMARKS
3
During detailed engg. During detailed engg.
REMARKS
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
4.
DESIGNATION
UNITS
VALUE
Weight of complete shut off valve
kg
~25000 to 30000
Estimated shipping weight of valve
kg
~15000 to 20000
Weight of complete oil pressure unit kg with pump set equivalent
During detailed engg.
Maximum weight of valve assembly kg to be handled by power house crane
~15000 to 20000
Minimum floor opening required for mm valve installation/removal (L x W) mm
4.3.
REMARKS
× During detailed engg.
Recommended additional spare parts List hereunder the spare parts which are recommended by the Bidder for purchase in addition to the specified spare parts. The purchase of any or all of the recommended spare parts will be at the option of HPPCL . The prices for recommended additional spare parts for five (5)years. -
ITEM 1.
DESCRIPTION No additional spare recommended.
2. 3. 4. 5. 6. Note: Use additional sheet if required
SAINJ HEP
4
UNIT
PRICE/ UNIT
-
-
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
4.4.
Information to be supplied together with the bid At least the information listed hereunder shall be given by the Bidder. The Bidder may advantages in his design of the delivery or special technical features of his offer by additional documents / descriptions 1. Indicate type of construction (cast steel or welded steel) for valve body and rotor [Reply] - Ref Technical Description of MIV - Bid clause 4.4.1. 2. Describe method of operation on closure of the valve (by oil pressure and counter weight) [Reply] - Refer Technical Description -Bid clause 4.4.1 & Hydraulic Schematic diagram attached - Bid clause 4.4.2. 3. Specify proposed type of by- valve. [Reply] Ref Technical Description of MIV 4. Describe method of operation of the automatic air inlet and vacuum release valve [Reply] - Self acting, movement due to air - water pressure difference. 5. Specify proposed type of service seal control valve. [Reply] - During Detail Engineering 6. Provide dimensional drawing with cross section showing the type of trunion seal, bearing, General Arrangement of major valve parts and main dimensions [Reply] - During Detail Engineering
7. Provide schematic and block diagram of complete shut-off valve system [Reply] - During Detail Engineering
8. Indicate expected maximum dynamic and static loads on foundation for the most unfavourable conditions (opening/closure) [Reply] - During Detail Engineering
9. Provide information on field performance tests performed on a shut-off valve, which is similar to the proposed valve. Indicate at least the following: [Reply] During Detail Engineering
place of field test year of field test size of valve design pressure SAINJ HEP
5
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
10. Complete details of tools required for erection of MIV. [Reply] - During Detail Engineering
SAINJ HEP
6
4.
MAIN INLET VALVE AND ACCESSORIES (SPHERICAL VALVE)
4.1.
Guaranteed Technical Particulars
ITEM
DESIGNATION
UNITS
VALUE
1.
General
1.1
Manufacturer/ Type designation
-
Voith /Fouress /TBHydro /Hongcheng
1.2
Place of Manufacturer
-
During detailed engg.
1.3
Applicable standards
-
IS/DIN/Voith norms
2.
Main data
2.1
Maximum leakage from main valve when fully closed against maximum head of 396.2 M (with new seal) through service seal
L/min
3
through maintenance seal
L/min
3
Maximum leakage from by valve L/min at mentioned head of 396.2 M
During detailed engg.
2.2
Maximum head loss through the valve m at a flow required for rated turbine output at rated net head
Value - during detailed engg. (negligible being spherical valve)
2.3
Maximum torque required to close the valve with a flow corresponding to rated turbine output at rated net head
Nm
During detailed engg.
specified turbine overload output at rated net head
Nm
During detailed engg.
Rated turbine output at maximum head of 400.70 m
Nm
During detailed engg.
Rated turbine over load at maximum head of 400.70 m.
Nm
During detailed engg.
SAINJ HEP
1
REMARKS
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
DESIGNATION
2.4
Main dimensions of shut-off valve
UNITS
VALUE
inside diameter length of valve body (excluding extensions) maximum distance from horizontal centreline of valve to lowest portion of assembly
mm mm
1200 ~1720
mm
During detailed engg.
2.5
Lowest factor of safety (referred to design yield stress) for any hydraulically loaded part of the valve
-
2.6
Valve operating oil pressure
2
minimum
Kg/cm2
~80
maximum
Kg/cm2
~120
rated
Kg/cm2
During detail engg
3.
Oil pressure unit(OPU)
3.1
Number of main oil pumps
Nos.
3.2
Type of oil pumps
-
3.3
Oil pump discharge
Fixed displacement
L/min
~85
at pressure
Kg/cm2
120
3.4
Power rating of main pump motor
kW
~22
3.5
Type of pressure switches
-
Diaphragm
4.
Pressurised accumulator tank
4.1
Total oil volume
L
~375
4.2
Design pressure
Kg/cm2
120
4.3
Minimum possible operating cycles of shut-off valve(close-open) without recharging tank
2
For operating load case
2
capacity
SAINJ HEP
REMARKS
(close-open -close)
MIV servomotor is single acting and closing by counter weight
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
DESIGNATION
UNITS
4.4
Dimension of tank (Height X Dia.)
mm mm
5.
Sump tank
5.1
Total oil volume
L
5.2
Size of sump (L X W X Depth)
mm mm mm
6.
Hydraulic oil
6.1
Total quantity of Hydraulic oil required for complete system including servomotor
L
~800/unit
6.2
Oil quantity
L
~880/unit
4.2.
VALUE X
During detail engg
~800 X X
During detail engg
With 10% margin
Informative data
ITEM
DESIGNATION
1.
Servomotor
1.1
Make
-
1.2
Nominal design oil pressure
Kg/cm2
1.3
Active volume
m3
43.31
2.
Guaranteed closing time of MIV at rated load and rated head of 396.70m
Sec
During detailed engg.
Guaranteed closing time of MIV at overload of (110%) and maximum head of 400.70m
Sec
Guaranteed maximum opening time at rated head
Sec
UNITS
Sec
Weights
SAINJ HEP
VALUE
Reputed make 120
During detailed engg.
Guaranteed maximum opening time at maximum head of 400.70 m 3.
REMARKS
3
During detailed engg. During detailed engg.
REMARKS
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
ITEM
4.
DESIGNATION
UNITS
VALUE
Weight of complete shut off valve
kg
~25000 to 30000
Estimated shipping weight of valve
kg
~15000 to 20000
Weight of complete oil pressure unit kg with pump set equivalent
During detailed engg.
Maximum weight of valve assembly kg to be handled by power house crane
~15000 to 20000
Minimum floor opening required for mm valve installation/removal (L x W) mm
4.3.
REMARKS
× During detailed engg.
Recommended additional spare parts List hereunder the spare parts which are recommended by the Bidder for purchase in addition to the specified spare parts. The purchase of any or all of the recommended spare parts will be at the option of HPPCL . The prices for recommended additional spare parts for five (5)years. -
ITEM 1.
DESCRIPTION No additional spare recommended.
2. 3. 4. 5. 6. Note: Use additional sheet if required
SAINJ HEP
4
UNIT
PRICE/ UNIT
-
-
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
4.4.
Information to be supplied together with the bid At least the information listed hereunder shall be given by the Bidder. The Bidder may advantages in his design of the delivery or special technical features of his offer by additional documents / descriptions 1. Indicate type of construction (cast steel or welded steel) for valve body and rotor [Reply] - Ref Technical Description of MIV - Bid clause 4.4.1. 2. Describe method of operation on closure of the valve (by oil pressure and counter weight) [Reply] - Refer Technical Description -Bid clause 4.4.1 & Hydraulic Schematic diagram attached - Bid clause 4.4.2. 3. Specify proposed type of by- valve. [Reply] Ref Technical Description of MIV 4. Describe method of operation of the automatic air inlet and vacuum release valve [Reply] - Self acting, movement due to air - water pressure difference. 5. Specify proposed type of service seal control valve. [Reply] - During Detail Engineering 6. Provide dimensional drawing with cross section showing the type of trunion seal, bearing, General Arrangement of major valve parts and main dimensions [Reply] - During Detail Engineering
7. Provide schematic and block diagram of complete shut-off valve system [Reply] - During Detail Engineering
8. Indicate expected maximum dynamic and static loads on foundation for the most unfavourable conditions (opening/closure) [Reply] - During Detail Engineering
9. Provide information on field performance tests performed on a shut-off valve, which is similar to the proposed valve. Indicate at least the following: [Reply] During Detail Engineering
place of field test year of field test size of valve design pressure SAINJ HEP
5
GUARANTEED TECHNICAL PARTICULARS (SCHEDULE – I)
10. Complete details of tools required for erection of MIV. [Reply] - During Detail Engineering
SAINJ HEP
6
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