We don't sell or size fire pumps. Pump selection, sizing and the design of the water supply belong to the engineer of record or responsible designer. Drafting support turns those decisions and the approved equipment data into clear drawings.
What a pump room drawing set usually shows
NFPA 20, the Standard for the Installation of Stationary Pumps for Fire Protection, covers how fire pumps and their components are installed. Your AHJ's adopted edition and the project specifications set the details. A typical drafting scope includes:
- Pump room plan showing the fire pump, driver, controller, jockey pump and their clearances
- Suction and discharge piping with valves, fittings and sizes as designed
- Test header or flow meter arrangement and its routing to the exterior or a drain
- Bypass piping where the design includes it
- Sections showing elevations, supports and pipe crossings
- Diesel-specific items where applicable: fuel tank, exhaust routing and room ventilation as designed by others
- Equipment schedule and notes tied to the approved submittals
What you provide
- Approved pump, driver and controller data sheets
- The pump curve and rated point from the manufacturer
- Room dimensions, doors and structure
- Water supply source and connection points
- Electrical service information for electric drivers
- Mechanical design for diesel exhaust and ventilation
- Specification sections for the fire pump
- Your title block and drawing standards
Coordination problems drafting can catch early
Pump rooms are often sized before the equipment is chosen. When the drawings are built from real submittal dimensions, problems show up on paper instead of on site:
- Not enough clearance around the controller or driver for access and maintenance
- Suction piping arrangements that the designer needs to review against the standard
- Test header piping that has nowhere sensible to discharge
- Conflicts between pump room piping and electrical gear, floor drains or structure
- Door openings too small to bring the equipment in or out
A drafter flags these for the designer to resolve. The drafter doesn't decide the fix.
Acceptance testing and records
Field acceptance testing is performed and witnessed by qualified people on site, as the AHJ and the adopted standard require. Drafting support can help around it: preparing blank test record sheets in your format, plotting the pump curve for comparison, and updating the record drawings once the installation is final. Ongoing inspection, testing and maintenance falls under NFPA 25 and is the owner's responsibility; clean record drawings make that work easier for whoever does it later.
Common questions
Can you draft a pump room before the pump is selected?
A preliminary layout can be drawn from typical dimensions, but it should be clearly marked as preliminary and redrawn once the approved equipment data arrives.
Can you work from a 3D model?
Yes, if the model platform and version are agreed up front. Pump rooms benefit from 3D because of the number of pipe crossings.
Do you check the design against NFPA 20?
A drafter can point out items that look inconsistent with the inputs, but compliance review is the responsibility of the engineer of record or responsible designer, and acceptance is the AHJ's decision.
Pump room drawings needed for a submittal or closeout? Send the equipment data and room plans.
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