12 replies to this topic

[freeman]

Dear All,

 

I wish to size a sump pump (type VS4 API pump). I would be grateful, if anybody could help me.

If you have a sample sump pump datasheet, it will be good for me.

 

Thank you in advance!

 

Best Regards,

Freeman

[Bobby Strain]

You need to consider the sump size and inflow along with pump sizing. You want to avoid frequent starting and stopping. So a datasheet doesn't tell you much.

 

Bobby

[freeman]

You need to consider the sump size and inflow along with pump sizing. You want to avoid frequent starting and stopping. So a datasheet doesn't tell you much.

 

Bobby

Thank you for the recent reply!

the sump size and the flow rate are known. The operation of the pump is intermittent. what's the difference between the conventional centrifugal pump and sump pump sizing. 

 

what are differences between data sheets provided for vendor

 

Freeman

[breizh]

Hi ,

Consider the resource attached to support your work and probably also good to contact vendors like flygt:

 

http://www.xylemwate...es/default.aspx

 

my view .

 

Breizh

[SPC]

Dear Freeman,
 
        Please find attached herewith Sump Pump Data Sheet from my past Project.
 
 
 
It may be useful for you.
 
Questions / Queries / suggestions are most welcome.
 
Lot many thanks,
 
Regards,
SPC

[SPC]

FORGOT DATA SHEET. Kindly refer it here.

 

PUMP MANUFACTURER * SIZE * QUANTITY TYPE CENTRIFUGAL, Self Priming 2 CONSTRUCTION OPERATING CONDITIONS Casing mounting Back pull out Liquid handled     Effluent of INT Plant Split Radial Pumping Temp ⁰C     30 Type Single Volute Density (Kg/M3)     1000 Tapped opening Vent Drain Gauge       Vapor pressure     32 mm Hg @ 30 deg.cel. Nozzles Size ANSI rating Facing Position Viscosity (cp)     5 Suction * 150# FF * Corr. Eros caused by     ~ Suction * 150# FF * Capacity (m3/hr)      2 Case design Press./Temp * Discharge Press kg/cm² (g) * Impeller Type Semi Open Suction Press kg/cm² (g) Lift of 1.5 m from sump Rotn. facing coupling end * Diff. Press kg/cm² (G)       Bearings type Radial     Thrust   Head (m)     27 Lubrication * NPSH available (m)       Base plate by Mfr. Combined for Pump & driver PERFORMANCE Foundation bolts by  * Proposal Curve no.   * Materials MOC ASTM Grades NPSH reqd (m)     * Casing PP   No of stages     1 Impeller PP   Pump speed     * Impeller wear rings N.A.   Impeller dia (max/rated/min) * Case wear rings N.A.   Efficiency     * Lantern ring     KW @ duty     * Shaft EN 24   KW at end of curve   * Shaft Sleeve Ceramic   Rec. driver kw     * Throat bush *   Min cont. flow     * Gland / Seal plate *   BKW at M.C.F     * Base plate MS Fab   Shut off head     * Coupling guard     MS   Capacity at BEP     * Nuts & bolts     *   Hydrostatic test press   * SEALING & FLUSHING SHOP TEST REQUIRED WITNESSED Packing / Mechanical Seal    Mech. Seal Mech run/Perf.test YES YES Packing Type & Material   Single &  * NPSH   YES (if reqd.) YES (if reqd.) Mech seal API code   * Dismantling YES YES Seal flushing plan as per API 610 * Hydrostatic YES YES Stuffing box pressure   * Weight (Pump + base + coupling)   COOLING AUXILLARY PIPING Cooling water Fresh / Blackish / Salt   Size       Cooling system Open / Closed Seal Quench / Vent / Drain * NPT     Inlet Press & Temp Kg/cm2              ⁰C Seal flushing   * NPT     Cooled parts Brgs. / Stuff. Box / Pedestals / Seal cooler Casing Vent / Drain * NPT     Cooling water reqd   LPM Base plate drain   * NPT     VERTICAL PUMPS DRIVER & TRANSMISSION Pit or sump depth   KW     *                 Min submergence   RPM     *                 Line shaft    Open / Enclosed             Manufacturer *                 Bearing lube Water / Oil /Grease           Electric supply   415 Volts 3 Phase 50 Hz   Motor mounting stool   Transmission Direct / Belt / Gear           Suction strainer   Coupling type SPACER REMARKS :   1)  Motor shall be flame proof               2) Motor shall be sized for End of Curve Power                               3) "*"Data to be filled in& submitted along with bid                     4) TDS & TSS are 3500 ppm & 400 ppm              respectively.      5) The pump shall be Self priming type                               CLIENT   JOB NO.                           PROJECT Speciallity chemical plant                         TITLE Effluent Transfer pump for INT 0 06.11.2009 CENTRIFUGAL PUMP xxx xxxx xxxx REV NO DATE DESCRIPTION PREP BY CHK.             BY APPD BY TAG NO P-26001A/B     ISSUED FOR ENQUIRY DATA SHEET NO. REV.   0 SHEET 1 OF 1 PUMP MANUFACTURER * SIZE * QUANTITY TYPE CENTRIFUGAL, Self Priming 2 CONSTRUCTION OPERATING CONDITIONS Casing mounting Back pull out Liquid handled     Effluent of INT Plant Split Radial Pumping Temp ⁰C     30 Type Single Volute Density (Kg/M3)     1000 Tapped opening Vent Drain Gauge       Vapor pressure     32 mm Hg @ 30 deg.cel. Nozzles Size ANSI rating Facing Position Viscosity (cp)     5 Suction * 150# FF * Corr. Eros caused by     ~ Suction * 150# FF * Capacity (m3/hr)      2 Case design Press./Temp * Discharge Press kg/cm² (g) * Impeller Type Semi Open Suction Press kg/cm² (g) Lift of 1.5 m from sump Rotn. facing coupling end * Diff. Press kg/cm² (G)       Bearings type Radial     Thrust   Head (m)     27 Lubrication * NPSH available (m)       Base plate by Mfr. Combined for Pump & driver PERFORMANCE Foundation bolts by  * Proposal Curve no.   * Materials MOC ASTM Grades NPSH reqd (m)     * Casing PP   No of stages     1 Impeller PP   Pump speed     * Impeller wear rings N.A.   Impeller dia (max/rated/min) * Case wear rings N.A.   Efficiency     * Lantern ring     KW @ duty     * Shaft EN 24   KW at end of curve   * Shaft Sleeve Ceramic   Rec. driver kw     * Throat bush *   Min cont. flow     * Gland / Seal plate *   BKW at M.C.F     * Base plate MS Fab   Shut off head     * Coupling guard     MS   Capacity at BEP     * Nuts & bolts     *   Hydrostatic test press   * SEALING & FLUSHING SHOP TEST REQUIRED WITNESSED Packing / Mechanical Seal    Mech. Seal Mech run/Perf.test YES YES Packing Type & Material   Single &  * NPSH   YES (if reqd.) YES (if reqd.) Mech seal API code   * Dismantling YES YES Seal flushing plan as per API 610 * Hydrostatic YES YES Stuffing box pressure   * Weight (Pump + base + coupling)   COOLING AUXILLARY PIPING Cooling water Fresh / Blackish / Salt   Size       Cooling system Open / Closed Seal Quench / Vent / Drain * NPT     Inlet Press & Temp Kg/cm2              ⁰C Seal flushing   * NPT     Cooled parts Brgs. / Stuff. Box / Pedestals / Seal cooler Casing Vent / Drain * NPT     Cooling water reqd   LPM Base plate drain   * NPT     VERTICAL PUMPS DRIVER & TRANSMISSION Pit or sump depth   KW     *                 Min submergence   RPM     *                 Line shaft    Open / Enclosed             Manufacturer *                 Bearing lube Water / Oil /Grease           Electric supply   415 Volts 3 Phase 50 Hz   Motor mounting stool   Transmission Direct / Belt / Gear           Suction strainer   Coupling type SPACER REMARKS :   1)  Motor shall be flame proof               2) Motor shall be sized for End of Curve Power                               3) "*"Data to be filled in& submitted along with bid                     4) TDS & TSS are 3500 ppm & 400 ppm              respectively.      5) The pump shall be Self priming type                               CLIENT   JOB NO.                           PROJECT Speciallity chemical plant                         TITLE Effluent Transfer pump for INT 0 06.11.2009 CENTRIFUGAL PUMP xxx xxxx xxxx REV NO DATE DESCRIPTION PREP BY CHK.             BY APPD BY TAG NO P-26001A/B     ISSUED FOR ENQUIRY DATA SHEET NO. REV.   0 SHEET 1 OF 1

[freeman]

Dear SPC,

 

Thank you so much for your reply!

Is it possible to share the data sheet in the file format (pdf , doc, or xls).

 

Best Regards,

Freeman

[Chemitofreak]

Are you a process engineer or a mechanical (rotary) engineer.

 

If you are process engineer then pump hydraulics shall be carried out like normal centrifugal pump.

 

1. Flowrate: Working volume of the sump (HLL to LLL) / time in which the sump needs to be emptied

 

2. Head Calculation: The way it is done in any other pump (head generally is mentioned at the discharge flange in case of sump pumps).

 

3. Design Pressure: Like any other centrifugal pump i.e. shutoff factor * rated head + highest suction pressure.

 

4. Requirement for ware house spare (as per philosophy)

 

5. Auto start/stop requirement based on HH and LL liquid level

 

6. Pump inhibition to start in case handling high temperature fluid (i.e. considering destination vessel design temperature)

 

The process datasheet of normal centrifugal pump can be used for sump pump.

[SPC]

Chemitofreak,

 

I am Process Engineer. This Pump data sheet is prepared for Purchase requisition. This is Prepared by Rotary / Mechanical group.

 

Required details are provided & sufficient.

 

 

Dear Freeman,

Can you guide me please to upload excel sheet as I am unable to do the same. May be this file would be useful for you.

 

Regards,

SPC

[freeman]

Chemitofreak,

 

I am Process Engineer. This Pump data sheet is prepared for Purchase requisition. This is Prepared by Rotary / Mechanical group.

 

Required details are provided & sufficient.

 

 

Dear Freeman,

Can you guide me please to upload excel sheet as I am unable to do the same. May be this file would be useful for you.

 

Regards,

SPC

 

 

Are you a process engineer or a mechanical (rotary) engineer.

 

If you are process engineer then pump hydraulics shall be carried out like normal centrifugal pump.

 

1. Flowrate: Working volume of the sump (HLL to LLL) / time in which the sump needs to be emptied

 

2. Head Calculation: The way it is done in any other pump (head generally is mentioned at the discharge flange in case of sump pumps).

 

3. Design Pressure: Like any other centrifugal pump i.e. shutoff factor * rated head + highest suction pressure.

 

4. Requirement for ware house spare (as per philosophy)

 

5. Auto start/stop requirement based on HH and LL liquid level

 

6. Pump inhibition to start in case handling high temperature fluid (i.e. considering destination vessel design temperature)

 

The process datasheet of normal centrifugal pump can be used for sump pump.

 

Chemitofreak!

 

Thank you so much!

I'm a process engineer. your reply helped me much. Are the pump dimensions including the distance between the bell and the sump floor mentioned in the datasheet?

 

Thank you again!

Freeman

[Chemitofreak]

The size is finalised based on info received from the vendor.

But, based on my experience 600 mm x 600 mm x 600 mm sump in OWS would suffice ( 600 mm ID x 600 mm height for Closed Drain Drum).

Revert in case of any query.

[freeman]

The size is finalised based on info received from the vendor.

But, based on my experience 600 mm x 600 mm x 600 mm sump in OWS would suffice ( 600 mm ID x 600 mm height for Closed Drain Drum).

Revert in case of any query.

Thank you again!

As I've investigated, there are two frequent-use vertical pumps namely, VS1 and VS4 API pumps. I think it's the responsibility of the vendor to specify the type.

 

please leave your comment!

 

Best Regards,

Freeman

[Chemitofreak]

Yes, as my earlier post suggested it is finalized by the pump vendor. The values specified were on the basis of my personal experience.