fire water pump

[Samingme755]

hi
im asking for fire water pump whats the best api material class to imply location is near the sea
thanks

 

[LittleInch]

Fire pumps are a special subset of pumps and you get what the company gives you. Just specify coastal location on the data sheet and let them coat it with a decent epoxy paint.

 

[Snickster]

Here is a specification I developed for power plant in Virgin Islands. Basic materials are specified but should leave up to vendor to make recommendations for materials if they advise are better suited than the ones listed. What I did was gave them this spec and asked them provide bid based on materials listed, but if they recommended alternate materials to list as separate cost for alternate materials. The data sheet I gave to them to complete left the materials blank for them to fill in.

 

[Snickster]

For painting I left it up to the vendor with this statement in the spec:

2.11 Painting

Painting and coating shall be in accordance with manufacturer’s standard paint systems for a coastal
shoreline saltwater marine corrosive environment. Submit proposed paint systems with quotation.
Provide fire engine red final coat.

 

[TenPenny]

Also, please specify if any codes apply. Does it need to be UL/FM approved? I've dealt with fire pumps that did need FM/UL, but also many that did not. That should be the first thing you specify.

 

[LittleInch]

But many / most are to NFPA and as soon as you do that, the vendors of these packages tend to sell you the same pump regardless of whether it needs FM/UL approval.

They churn these out at prices you won't get close to for an API 650 pump

 

[Snickster]

I believe UL448 is the reference standard for firewater pumps as I indicated in the attached spec. I don't think API 610 can even be applied to FW pumps. FW systems and equipment are specified to NFPA standards which in turn reference UL standards for particular equipment and components in accordance with national, state and local codes, and to what is called the Authority Having Jurisdiction, which is typically the state or local fire marshal.

Attached is the entire pump spec - relevant standards are shown in first few pages, no API Standards apply.

 

[pierreick]

Hi,
A reference you may want to contact:

Ranges of marine motor pumps for seawater transfer

New pumps for marine water transfer. We have transportable diesel motor pumps with electric and manual starters

www.motopompe-incendie.com

Pierre

 

[Snickster]

Note that the governing standard for FW pumps is NFPA 20.

 

[DaveyMalaysia]

hi
im asking for fire water pump whats the best api material class to imply location is near the sea
thanks

When you're dealing with the sea, you'll need a specialised pump grading in titanium for sure. It'll offer the protective measure needed for the long-haul use.

Even if you're planning to draw in water, or in your case, nearby water from the marine ecosystem, I'd reckon to use the pump in titanium for sure.

Because seawater is corrosive, and the hydration goes through your pump. Impellers, volute, etc in stainless steel grading wouldn't last as best.

And coating only works externally.

 

[LittleInch]

I don't think they are actually pumping sea water ....

 

[Artisi]

Note that the governing standard for FW pumps is NFPA 20.

Not always, there are other Fire pump spec throughout the world.

 

[SB1976]

Although Fire Water pump is near sea, it may be fed with clean clear water (free of chlorides etc.). In that case, Cast Iron can be used as material of construction for these pumps.

If it is pumping sea water (untreated), you need to use Super Duplex Stainless Steel.

 

[TugboatEng]

Which API class specifies bronze?

 

[SB1976]

Which API class specifies bronze?

API 610, 11th Edn specifies I-1 and I-2 for FW pumps. See Appendix-H.

 

[TugboatEng]

I apologize, I was being facetious. I know that bronze pumps are very tolerant of most water conditions. I'm not familiar with API 610 but I was able to look up the standards you shared and see that there is no all bronze construction specification. That is odd because that would provide for a very reliable fire pump.