An approved equal for fire equipment is a product from another manufacturer that the contractor offers in place of the one named in the specification. It only becomes “approved” once the consultant or owner accepts it in writing. It usually gets accepted when the submission proves it matches or exceeds the specified item in listing, performance, dimensions and compatibility without changing the design or the programme. That is the core of AZEIDK’s technical selection of systems and equipment service.
This guide covers when a substitution is justified, what goes into the request, the comparison table consultants expect, what to check for each equipment family, and the most common reasons substitutions are rejected on Saudi projects.
Key takeaways
- A substitute stays “proposed” until the consultant or owner accepts it in writing. The supplier and the contractor do not decide.
- A UL listing or an FM or LPCB approval belongs to the manufacturer and a specific model. Check it in the listing body’s official directory, not in a catalogue.
- Compare line by line against the datasheet and declare every deviation openly.
- Extinguishing equipment and fire pumps need a SABER certificate of conformity under SASO’s Technical Regulation for Fire Control Materials and Equipment. Fire alarm and firefighting systems are outside that regulation’s scope.
- For fire alarm devices, compatibility with the existing panel matters more than matching specifications on paper.
In this article
- What does “approved equal” mean in a fire protection specification?
- When can a contractor propose an approved equal for fire equipment?
- Who accepts the substitute: consultant, owner or Civil Defense?
- What goes into a substitution request submittal?
- Comparison table: substitute versus specified product
- What to compare for each equipment family
- Why do consultants reject substitution requests?
- Steps to prepare an approved equal request
- How AZEIDK helps with substitutions
- Frequently asked questions
- Conclusion
What does “approved equal” mean in a fire protection specification?
Specifications usually name a manufacturer or a reference model for each item, followed by “or equal” or “or approved equal”. The named model sets the required level of quality and performance; it is not necessarily the only acceptable product. Other clauses may say “no substitution” or give a list of acceptable manufacturers, and nothing else is accepted without a formal change from whoever has the authority.
So before any comparison, read the specification clause and the general conditions. Are substitutions allowed? What is the procedure? What is the deadline? In CSI-based specifications, such as Section 01 25 00 “Substitution Procedures” in the University of Houston master specifications, requests must be made as soon as the need is discovered, and substitutions requested purely for the contractor’s convenience are not considered.
When can a contractor propose an approved equal for fire equipment?
Reasons that are usually accepted are the ones you can prove:
- Unavailability: the model has been discontinued, or there is no agent or supplier for it in Saudi Arabia.
- Lead time: delivery would overrun the programme. A letter from the supplier or manufacturer helps.
- Market entry: the specified model has no SABER certificate of conformity although it falls within the technical regulation.
- Cost: a clear price difference with equal performance. Here the owner decides, because the owner gets the saving and carries the risk.
The earlier the request goes in, ideally before material approvals and shop drawings, the easier it is for the consultant to review without disrupting other trades.
Who accepts the substitute: consultant, owner or Civil Defense?
Acceptance or rejection is the consultant’s or owner’s decision under the contract. AZEIDK’s technical supply page says so directly: we offer the alternative with its datasheet for comparison, and acceptance remains with the consultant or owner. The supplier’s job is to provide complete and accurate information.
Civil Defense does not choose brands, but the installed system must still meet the Saudi Fire Protection Code (SBC 801) and the facility’s Civil Defense approval requirements. A substitute that changes the design basis, such as a sprinkler K-factor or a pump curve, needs revised calculations and drawings before it is accepted.
What goes into a substitution request submittal?
A substitution request is an expanded submittal. Each document is explained in our guide to technical documents for fire-fighting equipment. At minimum it includes:
- Cover letter or request form: specification section and drawing reference, the specified product, the proposed substitute and the reason.
- Line-by-line comparison table: specified value against proposed value, with every deviation stated.
- Datasheet, catalogue and installation manual for the exact proposed model, from the manufacturer, with the model and size marked on each page.
- Listing evidence: a copy of the UL, FM or LPCB directory entry for the model and size, not just a logo in a brochure.
- SABER certificate of conformity where the product falls within the technical regulation.
- Proof of compatibility with the existing panel, network or system.
- Impact on other work, programme and cost, and the expected lead time.
- Warranty, spare parts and technical support after handover.
Comparison table: substitute versus specified product
This is what the consultant reads first. Follow the order of the specification clause and reference each value to the datasheet.
| Item | What to submit | How the consultant checks it |
|---|---|---|
| Listing / approval | Listing body and type for the same model and size | Search UL Product iQ, the FM Approval Guide or LPCB’s RedBookLive |
| Performance | Pump curve, K-factor, temperature rating, sensitivity | Against the hydraulic calculations and design criteria |
| Rated working pressure | Rated pressure from the datasheet | Against the maximum actual system pressure |
| Dimensions and ends | Dimensions, weight, connections (grooved, flanged, threaded) | Clashes with shop drawings and available space |
| Compatibility | Compatibility list or manufacturer’s letter | Fit with the existing panel or network |
| Saudi market conformity | SABER certificate of conformity where applicable | Certificate covers the same model |
| Supply | Expected lead time and local supplier | Impact on the programme |
| Warranty and service | Warranty period, spare parts and support | At least equal to the specification |
How to search each directory is explained step by step in how to verify UL, FM and LPCB listings. Remember that a listing belongs to the manufacturer and its model, never to the supplier or contractor.
What to compare for each equipment family
Fire pumps
Matching rated flow and pressure is not enough; compare the whole curve. Under NFPA 20, as summarised by the Hydraulic Institute and ASPE, a centrifugal fire pump must deliver at least 150% of rated flow at not less than 65% of rated pressure, and churn (shutoff) pressure must not exceed 140% of rated pressure. Also compare pump type, motor power, controller, baseplate dimensions and flange positions in the pump room. AZEIDK supplies fire pumps from more than one manufacturer, including Jack Pump, WATEX and 3PUMP, and approval status differs from model to model, so check each model’s documents.
Sprinklers
Compare K-factor, temperature rating, response type (quick or standard), orientation (pendent, upright, sidewall), the sprinkler identification number (SIN) and the listed applications on the datasheet. A different K-factor or coverage area can change the hydraulic calculations.
Valves
Compare rated working pressure, end connections, supervisory (tamper) switch, permitted installation orientation and, for alarm valves, the trim approved with that model.
Fire alarm systems
Compatibility is decisive. According to Security Sales & Integration’s article on the detector listing process, NFPA 72 requires detectors powered from the initiating circuit to be listed for use with the control unit, and addressable devices usually run on the manufacturer’s own protocol, so they do not go on another manufacturer’s panel unless compatibility documents say so. Do not mix UL- and EN 54-approved devices in one system without review.
Special hazard suppression
Clean agent and aerosol systems are normally designed with the manufacturer’s method, calculation software and components. Changing brand usually means redoing the calculations, agent quantity and nozzle layout, not swapping parts one for one.
Why do consultants reject substitution requests?
- Wrong listing: the approval covers another model or size, or the model is not in the official directory.
- Incomplete comparison: only the strengths are filled in, or a whole-family datasheet without the model identified.
- Undeclared deviations: once the consultant finds one, the whole submission loses credibility.
- Design impact: the substitute changes hydraulics, space or power supply without revised calculations.
- Incompatibility with the existing panel or system, especially in extensions.
- No certificate of conformity for a product covered by the technical regulation.
- Late requests after supply or installation has started, or requests made only for convenience.
- Unofficial documents: marketplace listings or edited files instead of manufacturer documents.
If price is the driver, read how to compare fire system quotations so you don’t compare a fully equipped product with a stripped-down one.
Steps to prepare an approved equal request
- Read the specification clause and general conditions to confirm substitutions are allowed and how.
- Turn every value in the clause into a row of the comparison table.
- Collect the proposed model’s documents directly from the manufacturer and mark the model and size.
- Verify the listing in the official directory, and the SABER certificate where it applies.
- State deviations clearly and propose how to deal with them, such as a different hanger or fitting.
- Check the impact on calculations, drawings and programme, and submit early.
- Do not supply the substitute before written acceptance from the consultant or owner.
It also helps to know the difference between manufacturer, distributor, supplier and contractor, because compatibility letters and lead-time confirmations must come from the party entitled to issue them.
How AZEIDK helps with substitutions
Through our technical selection and technical supply services, AZEIDK reviews the project’s technical requirements and approved specifications, compares solutions and equipment on performance, compatibility and reliability, and reviews the datasheets and catalogues of proposed equipment before procurement and installation. When an alternative to a specified product is needed, we provide it with the official datasheet for comparison, taking into account the approvals the product itself carries from its manufacturer (such as UL or FM where the model has them) and SASO and SABER requirements, and acceptance stays with the consultant or owner. AZEIDK also holds the Saudi Local Content certificate, which is useful on projects that give weight to local content in supply.
Frequently asked questions
What is the difference between “or equal” and “approved equal”?
“Or equal” means the specification allows a product equivalent to the named model. An “approved equal” is that equivalent product after the consultant or owner has accepted it in writing.
Is a UL or FM approval enough for a substitute?
No. The approval is a basic condition, but the substitute must also match the specified product in performance, pressure, dimensions and compatibility, and the approval must cover the same model and size.
Can the supplier approve the substitute itself?
No. The supplier prepares the documents and comparison. Acceptance or rejection is the consultant’s or owner’s decision under the contract.
Does the substitute need a SABER certificate?
If it falls within SASO’s Technical Regulation for Fire Control Materials and Equipment, such as extinguishing equipment and fire pumps, it cannot be marketed without a certificate of conformity.
How do I know a substitute detector will work with the existing panel?
From the manufacturer’s compatibility documents and the listing, not from similar specifications. Many addressable devices only work with their own manufacturer’s panels.
Conclusion
An approved equal request succeeds when it is honest and complete: a clear reason, a line-by-line comparison, official documents for the exact model, a verifiable listing, proven compatibility, and a calculated impact on design and programme. The consultant or owner makes the final call; your job is to make that call easy.
Specified product unavailable or on a long lead time? Send us the specification clause and quantities, and we will propose a suitable alternative with its datasheet and a comparison table ready for the consultant. Contact the AZEIDK team
