VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

Vibration Acceptance Criteria for Fire Water Pump.

1. Reference

o ISO 5199 o NFPA 20 o VDI 2506 (superseded by ISO 10816)

2. ISO 5199 Acceptance criteria for vibration shall refer to ISO 5199 table 1 as below,

Height of center line of fire water pump above 225 mm, therefore maximum value of vibration velocity is 4.5 mm/s for rigid support and 7.1 mm/s for flexible support. And For vertical pump are 7.1 mm/s. Note : rigid support is one where the lowest natural frequency of the combine machine and support system in the direction measurement is at least 25% higher than the rotational frequency. Any others support is considered flexible

Base on above criteria, summary of fire water pump is as below: No Tag No Description Max. Vibration velocity (mm/s) Remark

1 91P001 Fire Water Pump Motor Driven 4.5 Rigid support

2 91P003 Diesel Engine Driven 7.1 Flexible Support, (lowest natural

frequency of Diesel Engine lower than 125% rotational frequency

3 91P002A/B Jockey Pump 7.1 Vertical Pump

VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

3. NFPA 20.

Refer to para 7.6.1.5 The operation shall be observed for vibration while running, with vibration limits according to the Hydraulic Institute Standards for Centrifugal, Rotary and Reciprocating Pumps. Refer to HI standard, fig 7.5 should be used as a general guide as below.

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VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

Fire pump Rotation is 2975 rpm (~3000 rpm) therefore maximum vibration 0.3/sec (7.62 mm/s).

4. VDI 2506 VDI 2506 is identical with ISO 2372 [1974]. However ISO 2372 was replace by ISO 10816 series standard. Therefore International will be applied is ISO 10816. Fire pump motor driver shall refer to ISO 10816-1 : Mechanical Vibration Evaluation of Machine Vibration by measurements on non-rotating parts Part 1 : General Guidelines. Fire pump diesel engine driven shall refer to ISO 10816-1 : Mechanical Vibration Evaluation of Machine Vibration by measurements on non-rotating parts Part 6 : Reciprocating machines with power rating above 100 kW. Refer to ISO 10816-1 annex B table B1 is as below :

. The machine classification is as below: Class I Individual parts of engines and machines, integrally connected to the complete machine in its normal operating condition . (Production electrical motor of up to 15 kW are typical examples of machines in this category.)

VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

Class II Medium-sized machines (typically electrical motor with 15 kW to 75 kW output) without special foundation, rigidly mounted engines or machines (up to 300 kW) on special foundations. Class III Large Prime-movers and other large machines with rotation masses mounted on rigid and heavy foundation which are relatively stiff in the directin of vibration measurements. Class IV Large Prime-movers and other large machines with rotation masses mounted on rigid and heavy foundation which are relatively soft in the direction of vibration measurements (for example, turbogenerators sets and gas turbines with output greater than 10 MW).

Refer to ISO 10816-6 annex A table A1 is as below :

And Annex A para 2 specified as below: Quote A reciprocating machine could well be classified by more than one class depending upon its type application, size, configuration, flexible or rigid mounting and speed. For example, many industrial and marine diesel engine may be classified in either classification number 5, 6 or 7. In this case the minimum is class 5. Pump to be classified as class 3. therefore maximum acceptance vibration for fire water pump with motor driven is 4.5 mm/s and for diesel engine driven is 11.1 mm/s. For diesel engine, maximum acceptance is 28.2 mm/s

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VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

5. Summary Refer to above International Standard, summary of acceptance criteria is as below : No Tag No Description Item Unit Standard Value

1 91P001 Electric Motor Driven Pump mm/sec ISO 5199 4,5

Fire Water Pump NFPA 20/HI 7,62

ISO 10816-1:1995 (E) 4,5

Electric Motor mm/sec Class III Machines 4,5

2 91P003 Diesel Engine Driven Pump mm/sec ISO 5199 7,1

Fire Water Pump NFPA 20/HI 7,62

ISO 10816-6:1995 (E) 11,1

Class III Machines

Diesel Engine mm/sec Manufacturer Standard 15

ISO 10816-6:1995 (E) 28,2

Class V Machines 3 91P002A Jockey Pump Pump mm/sec ISO 5199 7,1 NFPA 20/HI 7,62

Motor mm/sec ISO 10816-1:1995 (E) 2,8

Class II Machines 4 91P002B Jockey Pump Pump mm/sec ISO 5199 7,1

NFPA 20/HI 7,62

ISO 10816-1:1995 (E)

Motor mm/sec Class II Machines 2,8

VIBRATION ACCEPTANCE CRITERIA FOR

FIRE WATER PUMP

And result test for Fire Water Pump in KSB Shop Jakarta is as below

No Tag No Description Item Standard Value (mm/s) Max.Vib.Reading Remark

1 91P001 Electric Motor Driven Pump ISO 5199 4,5 5,7 Re-Test

Fire Water Pump NFPA 20/HI 7,62

ISO 10816-1:1995 (E) 4,5

Electric Motor Class III Machines 4,5 2,5 Accepted

2 91P003 Diesel Engine Driven Pump ISO 5199 7,1 6,4 Accepted

Fire Water Pump NFPA 20/HI 7,62

ISO 10816-6:1995 (E) 11,1

Class III Machines

Diesel Engine Manufacturer

Standard 15 14,4 Accepted

ISO 10816-6:1995 (E) 28,2

Class V Machines 3 91P002A Jockey Pump Pump ISO 5199 7,1 1,8 Accepted NFPA 20/HI 7,62

Motor ISO 10816-1:1995 (E) 2,8 1,7 Accepted

Class II Machines 4 91P002B Jockey Pump Pump ISO 5199 7,1 5,1 Accepted

NFPA 20/HI 7,62

ISO 10816-1:1995 (E)

Motor Class II Machines 2,8 2,4 Accepted

RevampText BoxAttachment 1 : ISO 5199; pages : 9

RevampText BoxAttachment 2 : NFPA 20; pages : 26

RevampText BoxAttachment 3 : Hydraulic Institute ; Fig 75

RevampText BoxAttachment 4 : ISO 10816-1; Annex B