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Brand: Reliable Sprinkler
Reliable JL14 and JL17 ESFR Pendent Sprinklers K14.0 and K16.8
Description
The Reliable JL14 and JL17 are Early Suppression Fast Response (ESFR) pendent sprinklers with nominal K-factors of 14.0 (200 metric) and 16.8 (240 metric). They use a levered fusible alloy solder link in 165 F (74 C) or 212 F (100 C) ratings and are designed to respond quickly to a growing fire and deliver a heavy discharge that suppresses rather than merely controls it. Bulletin 019 (August 2024) lists both models together, with a 175 psi (12 bar) maximum working pressure.
Why use ESFR sprinklers
Reliable describes the JL14 and JL17 as shorter and more compact than other ESFR sprinklers, giving more flexibility in distance from ceilings and obstructions. The smaller deflector and frame make them less susceptible to damage, and the lighter sprinklers passed rough use and abuse listing tests without plastic protectors. FM Approvals classifies both models as quick-response, storage and non-storage sprinklers when used per FM Global Property Loss Prevention Data Sheets.
Key features from the bulletin
- cULus, VdS and LPCB listed as ESFR; FM Approved as quick-response storage and non-storage.
- Beryllium nickel solder link as thermal sensor; brass alloy frame; bronze cap, load screw and deflector; stainless steel kick spring.
- Bronze finish; 3/4 in NPT or ISO 7-1 R3/4 (BSPT) threads.
- FM Approved with the Model S-3 water shield (3-3/4 in, 95 mm) as a pendent intermediate level sprinkler.
Technical specifications
Data from Bulletin 019 Tables A and B.
| Parameter | JL14 | JL17 |
|---|---|---|
| Nominal K-factor | 14.0 gpm/psi^0.5 (200 L/min/bar^0.5) | 16.8 gpm/psi^0.5 (240 L/min/bar^0.5) |
| Sprinkler identification number (SIN) | RA1812 | RA1914 |
| Style | Pendent | Pendent |
| Temperature ratings | Ordinary 165 F (74 C); intermediate 212 F (100 C) | Ordinary 165 F (74 C); intermediate 212 F (100 C) |
| Maximum working pressure | 175 psi (12 bar) | 175 psi (12 bar) |
| Approvals as printed | cULus, FM, VdS, LPCB, CNBOP-PIB, CE | cULus, FM, VdS, LPCB, CNBOP-PIB, CE |
| CE certificate | 2809-CPR-M0015 | 2809-CPR-M0015 |
| Parameter | Specification |
|---|---|
| Sensitivity | Fast response (ESFR); quick response (FM) |
| Wrench | Model J1 (threaded sprinklers only) |
| Installation torque | 14 to 40 ft-lb (19 to 54 N m) |
| System type | Wet |
| Design criteria | NFPA 13 and NFPA 30 or 30B for specific storage; FM Global Data Sheets 2-0, 8-9, 7-29, 7-31, 8-21 |
Selection and ordering
Specify the sprinkler (JL14 or JL17), the temperature rating (165 F or 212 F) and the end connection (3/4 in NPT or ISO 7-1 R3/4), and optionally the S-3 water shield for threaded sprinklers. Table B shows that coverage area, spacing, ceiling distance, clearance to commodity and storage arrangement are not fixed by the bulletin: they are set by NFPA 13 for NFPA installations or FM Global Data Sheet 2-0 for FM installations, so the system designer must size each project.
Installation and maintenance notes
Hold sprinklers only by the frame arms and apply no force to the link. Use only the Model J1 wrench; others may damage the sprinkler. Sprinklers not tightened to torque may leak. Do not clean with soap, ammonia or other fluids, replace painted or damaged sprinklers, and keep spares in a cabinet because an operated sprinkler cannot be reused. Inspect and maintain to NFPA 25.
Typical applications
ESFR sprinklers protect high-piled warehouse and rack storage of Class I to IV commodities and Group A plastics, as well as rubber tyres and rolled paper, where the design basis allows. Logistics and distribution hubs across the Gulf commonly specify them. Table B of the bulletin lists wet systems only, with 165 F and 212 F ratings under both NFPA and FM Global criteria. Confirm commodity class, roof construction, ceiling slope and approvals with your designer before ordering.
Selection and installation notes
Sprinklers, nozzles and valves are chosen by the system designer from the hazard classification, the coverage, the K-factor, the temperature rating and the pressure the water supply can deliver, and the system must be designed, installed and commissioned by qualified people to the standard and authority rules that apply to the project. Confirm the finish, the orientation, the response type and the temperature rating against the design, use only the wrench the maker specifies, never paint, coat or bend a sprinkler and keep spare sprinklers and a wrench in the cabinet as the rules require. Check the listings and approvals required for the project with the authority before purchase.
Keep a record of the sprinkler type and rating at each location, and protect the units from damage during building work.
Information needed for a quotation
Send the full model code, the quantity, the delivery location in Oman or the GCC, the intended use and any accessories needed, so that the complete package can be quoted together.
Documents and supply information
The manufacturer data sheet is attached to this page and should be read together with the project specification and the site risk assessment before a purchase is confirmed. Ratings, standards and dimensions are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.
Related items and documents
The bulletin is hosted on this page. Seven Star LLC is an independent supplier in Muscat; see the Fire Fighting range or send model, temperature rating and thread type for a quotation.
Frequently asked questions
What are the K-factors of the JL14 and JL17?
JL14 is K14.0 (200 metric) and JL17 is K16.8 (240 metric).
Which temperature ratings are offered?
165 F (74 C) ordinary and 212 F (100 C) intermediate.
What is the maximum working pressure?
175 psi (12 bar).
Are these sprinklers FM Approved?
Yes, as quick-response storage and non-storage sprinklers, per FM Global Data Sheets.
Which wrench should be used?
Only the Model J1 sprinkler wrench, tightened to 14 to 40 ft-lb (19 to 54 N m).
Datasheets & Documents
- Datasheet Reliable Bulletin 019 Models JL14 and JL17 ESFR Pendent Sprinklers, August 2024 Download
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About brand
The Reliable Automatic Sprinkler Co. is an American maker of fire sprinklers, valves and accessories, headquartered in Elmsford, New York. Mechanical contractor Frank J. Fee formed the company on 23 January 1920, after patenting sprinkler designs in 1918, and it remains run by the Fee family; Kevin T. Fee is president and chairman. Reliable makes automatic sprinklers and alarm, deluge and dry pipe valves.
Seven Star LLC is an independent supplier in Muscat. We list Reliable sprinklers and valves, with each page summarising the official bulletin, for fire protection contractors and facilities in Oman and the GCC.
Reliable Sprinkler company profile
| Founded | 23 January 1920, by Frank J. Fee |
|---|---|
| Headquarters | Elmsford, New York |
| Ownership | Fee family |
| Leadership | Kevin T. Fee, president and chairman |
| Product families | Automatic fire sprinklers, Model E alarm check valves, DDV and DDX deluge valves, FX dry pipe valves, B1 accelerators, floor control assemblies, preaction systems |
Milestones
- 1918: Frank J. Fee patents his sprinkler designs.
- 1920: Reliable is incorporated.
- 1945: Frank J. Fee Jr. becomes president.
- 2020: Reliable marks 100 years.
Reliable Sprinkler product series
Sprinklers include the F1FR56 K5.6 quick response sprinkler and the JL14 and JL17 ESFR pendent sprinklers (K14.0 and K16.8) for storage, and the MV is a medium velocity directional spray nozzle for water spray systems.
Valves include the DDX deluge valve with wet, dry or electric release trim, the DDV diaphragm deluge valve, the FX externally resettable dry pipe valve with the B1 accelerator, the Model E and E3 alarm check valves for wet pipe systems, the CVE grooved riser check valve and the FCA2 floor control assembly.
Where Reliable Sprinkler equipment is used
Commercial buildings, warehouses, factories, car parks and cold stores, and water spray protection of transformers, tanks and conveyors in industrial plants.
Reliable Sprinkler products we list
Ordering Reliable Sprinkler products: what we need
Send the model and SIN or part number, K-factor, temperature rating and finish for sprinklers, and the size, trim and pressure rating for valves, together with the approvals (cULus, FM) required by the project.
Facts checked against Reliable's own centennial booklet and about page (reliablesprinkler.com), October 2026.
Browse Reliable Sprinkler products by category: Fire Fighting.
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Frequently Asked Questions
What are the K-factors of the JL14 and JL17?
JL14 is K14.0 (200 metric) and JL17 is K16.8 (240 metric).
Which temperature ratings are offered?
165 F (74 C) ordinary and 212 F (100 C) intermediate.
What is the maximum working pressure?
175 psi (12 bar).
Are these sprinklers FM Approved?
Yes, as quick-response storage and non-storage sprinklers, per FM Global Data Sheets.
Which wrench should be used?
Only the Model J1 sprinkler wrench, tightened to 14 to 40 ft-lb (19 to 54 N m).
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