Fire systems 22 min read

Fire hydrant system in India: parts, which buildings need one, IS 3844 values, installation, testing, maintenance and cost

Updated October 2026By Flamekite Editorial DeskFacts checked against official sources on 28 October 2026

Fire hydrant system in India: parts, types, which buildings need a wet riser (NBC Table 7), IS 3844 values like 30 m reach and 700 kPa test, and official rates.

Hydrant reach: 30 m; No point a hydrant covers may be further away (IS 3844 cl. 5.2.2); Pressure and pumps
Initial pressure test: 700 kPa; Held at least 30 minutes, drop at most 50 kPa; Test checklist
Flats need a wet riser above: 35 m; A down-comer from 15 m to 35 m (NBC 2016 Table 7); Table 7 rows
Gun metal landing valve: Rs 7,863; Single outlet, supplied and erected; Maharashtra PWD CSR 2018-19, GST extra; Official rates

Quick answer

A fire hydrant system is a fixed network of a dedicated water tank, fire pumps, rising mains and hydrant outlets with hose and branch pipes, kept ready so the fire brigade or trained staff can put water on a fire on any floor (IS 3844:1989, cl. 4.0). Inside a building it takes the form of a wet riser, a down-comer or hose reels; outside it is a ring of yard hydrants.

Indian buildings need one by occupancy and height under NBC 2016 Table 7 and the state rule that names it: flats get a down-comer from 15 m and a wet riser above 35 m, offices and shops a wet riser and yard hydrant above 15 m, and hospitals, five-star hotels, malls and warehouses over 250 m² a wet riser at any height. Maharashtra lets only a licensed agency install it.

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Fire hydrant system diagram: fire water tank, main, diesel and jockey pumps, wet riser with a landing valve, hose and hose reel on each floor, fire service inlet and a yard hydrant — Fire hydrant system diagram: the 12 parts from the tank to the yard hydrant
Fire water tank
Main (duty) pump
Standby (diesel) pump
Jockey pump
Wet riser or down-comer
Landing valve
Hose and branch pipe
First-aid hose reel
Hose cabinet
Fire service inlet
Yard hydrant
Orifice plate
Schematic, not to scale. Each number is a part explained on this page.

Fire hydrant system IS codes and key numbers at a glance

The standards a hydrant installation is built and kept to, with the editions BIS listed on 24 October 2026, and the numbers searchers ask for most.
What	The rule	Source
Internal hydrants and hose reels	IS 3844:1989, first revision, reaffirmed 2020 and valid to 20 June 2030	BIS, IS 3844:1989
External (yard) hydrants	IS 13039:2014	BIS standards database
Water supply for fire fighting	IS 9668:1990	BIS standards database
Landing valves, branch pipes, hose reels	IS 5290:2025, IS 903:2025 and IS 884:2025; the 1985 and 1993 editions were withdrawn in September 2025	BIS standards database
Fire pumps	IS 15301:2003, installation and maintenance of fire fighting pumps	BIS standards database
Four internal hydrant systems	Dry riser, wet riser, wet-riser-cum-down-comer and down-comer (IS 3844 cl. 5.0)	BIS, IS 3844:1989
Hydrant to any point it covers	30 m at most; rising mains not more than 50 m apart (cl. 5.2.2)	BIS, IS 3844:1989
Hose reel reach	No floor point more than 6 m from the nozzle at full extension (cl. 6.5)	BIS, IS 3844:1989
Hose at each single-headed hydrant	At least 30 m of 63 mm hose, or two lengths of up to 15 m, plus 10 percent spares (cl. 5.12)	BIS, IS 3844:1989
Life CPWD assigns a wet riser or sprinkler system	20 years	CPWD Maintenance Manual

Types of fire hydrant system: wet riser, down-comer, dry riser and yard hydrant

The five forms a hydrant installation takes in an Indian building, by IS 3844 and NBC 2016 Table 7. Your approved plan names the one you have.
Option	Water in the pipe	Fed by	Typical NBC 2016 use	Main size and outlet	Source
Wet riser	Always, under pressure	Ground or underground tank and pump house; pressure switch starts the duty pump	Offices and shops above 15 m, hospitals, hotels with floors over 1,000 m², flats above 35 m	100 or 150 mm main; 63 mm landing valve, hose and branch pipe on every floor	BIS, IS 3844:1989
Down-comer	Always, from the terrace	Terrace tank and terrace pump	Flats and hostels from 15 m to 35 m, schools from 15 m to 24 m, offices under 10 m	100 mm pipe; single-headed landing valve and hose reel on each floor (cl. 5.4.2)	NBC 2016, Table 7
Wet-riser-cum-down-comer	Always	Static tank and pumps below, terrace tank above, two pumps of different capacity	Older approvals; a wet riser may replace it (cl. 5.3.2)	Positions and spacing as for the wet riser	BIS, IS 3844:1989
Dry riser	No; charged by the fire brigade	Fire tender through a ground-level inlet	Cold regions, and Group A buildings of 15 m to 24 m (cl. 5.1); every high-rise while under construction	At least 100 mm under NBC 2016 for buildings under construction	NBC 2016, Part 4
Yard (courtyard) hydrant	Yes, on the ring main	The same pump set as the wet riser	Marked Yes in Table 7 for offices and shops above 15 m, hospitals of 15 m to 24 m, malls, warehouses, factories over 1,000 m²	At least 2 per premises (IS 3844 cl. 5.11); design to IS 13039	NBC 2016, Table 7

Fire hydrant system installation in 8 steps, from plan to final NOC

Fix the occupancy, height and floor area
These pick the Table 7 row that sets the riser type, yard hydrants, tank sizes and pump set; a basement over 200 m² adds 5,000 litres to the terrace tank (Note 6).
Get the fire plan approved
Submit hydrant layout, tank and pump house drawings with the building plan for the provisional or plan-stage approval your state runs.
Build the tank and pump house
Underground tank at most 3.5 m deep with a sump, two manholes and a 6 m access road for 18 tonne appliances; pump house 6 m from other buildings or behind a 2 hour wall (IS 3844 cl. 4.1.1, 4.2.1).
Set the pumps
A duty and a standby pump on different power sources, a jockey pump to hold pressure, and a manual push button as the only way to stop the main pump (cl. 4.2.2, 4.2.6).
Run the mains and outlets
Riser or down-comer, a landing valve and hose cabinet on each floor within 30 m of every point, fire service inlets at ground level, yard hydrants on the ring main.
Pressure-test and flow-test
Hold 700 kPa for at least 30 minutes with no more than 50 kPa drop, then run the flow test (cl. 8.1, 8.2).
Certify the installation
In Maharashtra the licensed agency signs Form A for the building under rule 4(1) of the 2009 Rules; other states ask for the installer's completion certificate with the test records.
Fire service inspection and final NOC
The fire officer runs the pumps and outlets on site against the approved plan before granting the final fire NOC; keep the test sheets for the first AMC.

Fire hydrant system parts name: 12 components and what each does

IS 3844 lists the parts of an installation as a tank, rising or down-comer mains, pumps with a control panel in a pump house, and the hydrants, hose reels, hoses and branch pipes (cl. 4.0). Here they are one by one.

Fire water tank: Underground or ground-level static tank for the riser, plus a terrace tank; sizes come from the Table 7 row, from 5,000 litres on the terrace of a small hostel to 2,50,000 litres underground for a five-star hotel. NBC 2016, Table 7
Main (duty) pump: Electric pump that starts on its own when a landing valve or hose reel opens and pressure falls (IS 3844 cl. 4.2.6, 7.3). BIS, IS 3844:1989
Standby (diesel) pump: Takes over on power failure; it has its own panel, battery and charger and is interlocked so only one pump runs (cl. 4.2.2). BIS, IS 3844:1989
Jockey pump: Small pump that makes up leakage so the main pump does not start for nothing; IS 3844 suggests 200 to 300 litres a minute (cl. 7.11), NBC 2016 Table 7 notes ask 180 litres a minute. BIS, IS 3844:1989
Wet riser or down-comer: The vertical main, 100 or 150 mm, kept full of water, with an air release valve at the top (cl. 7.6). BIS, IS 3844:1989
Landing valve: The 63 mm outlet on each floor where the hose couples; its control line sits 1 to 1.2 m above the floor (cl. 5.9). Product standard IS 5290:2025. BIS, IS 3844:1989
Hose and branch pipe: At least 30 m of 63 mm delivery hose per single-headed hydrant with a branch pipe and nozzle (cl. 5.12). BIS, IS 3844:1989
First-aid hose reel: A reel tapped from the riser through a 37 mm socket, run by untrained occupants, with the nozzle and valve about 900 mm above the floor (cl. 6.1, 6.2). BIS, IS 3844:1989
Hose cabinet: Steel box with a glass front holding the hose and branch pipe beside the landing valve (cl. 5.14). BIS, IS 3844:1989
Fire service inlet: Ground-level connection through which a fire tender pumps into the riser: 2 inlets of 63 mm on a 100 mm main, 4 on a 150 mm main (cl. 5.2.3). BIS, IS 3844:1989
Yard hydrant: Outdoor hydrant on the ring main round the building; at least 2 per premises (cl. 5.11). BIS, IS 3844:1989
Orifice plate: Flange that throttles lower-floor outlets where pressure would exceed 400 kPa (cl. 7.8). BIS, IS 3844:1989

How a fire hydrant system works: water from tank to nozzle in 6 stops

Water sits still under pressure until an outlet opens. The pressure drop starts the duty pump, and the pump keeps the riser charged while the hose is in use.

1. Static tank
Two equal compartments joined by valves, so one can be cleaned while the other stays full; an indicator plate marked SWT shows the capacity (IS 9668 cl. 5.11). BIS, IS 9668:1990
2. Pump suction
Flooded suction is preferred; where a pump lifts water, a priming tank of 8 times the suction pipe volume keeps it primed (IS 3844 cl. 4.2.4). BIS, IS 3844:1989
3. Jockey and main pumps
The jockey pump holds the line pressure; when an outlet opens and pressure falls further, the pressure switch starts the main pump. BIS, IS 3844:1989
4. Riser or ring main
The charged main rises through the building, with rising mains no more than 50 m apart on large floors (cl. 5.2.2). BIS, IS 3844:1989
5. Landing valve and hose
Firefighters couple 63 mm hose to the landing valve; static pressure in a shut hose may not exceed 700 kPa (cl. 7.7). BIS, IS 3844:1989
6. Fire service inlet
If the building's water runs low, the brigade pumps into the riser through the inlet; IS 9668 wants a water source within 1 km of the risk (cl. 3.1). BIS, IS 9668:1990

Which buildings need a fire hydrant system under NBC 2016 Table 7

Table 7 of NBC 2016 Part 4 marks the riser, yard hydrant and tanks for each occupancy and height. These rows were read off the printed pages; a state that names the code applies them through its NOC.

	Riser	Yard hydrant	Underground tank (litres)	Terrace tank (litres)
Flats and hostels under 15 m	Hose reel only	No	None	5,000
Flats and hostels, 15 m to 35 m	Down-comer	No	None	25,000
Flats and hostels, above 35 m to 45 m	Wet riser	No	75,000	5,000
Flats and hostels, above 45 m to 60 m	Wet riser	Yes	1,50,000	10,000
Hotel under 15 m, floor 300 to 1,000 m²	Wet riser above ground plus one	No	10,000 per 500 m² of floor, at least 50,000	10,000
Five-star hotel, any height	Wet riser	Yes	2,50,000	20,000
School, 15 m to 24 m	Down-comer	No	None	25,000
Hospital under 15 m, ground plus 2 or more with beds	Wet riser	No	75,000	10,000
Hospital, 15 m to 24 m	Wet riser	Yes	1,50,000	20,000
Office or shops above 15 m to 24 m	Wet riser	Yes	1,00,000	10,000
Mall with cinemas or food courts	Wet riser	Yes	2,00,000	20,000
Moderate hazard factory over 1,000 m²	Wet riser	Yes	1,50,000	20,000
Warehouse under 15 m, over 250 m², ground floor only	Wet riser	Yes	50,000	10,000
Multi-level car park	Wet riser	Yes	1,50,000	10,000

Add 5,000 litres to the terrace tank where a basement exceeds 200 m² (Note 6). Table 7 does not permit storage buildings above 15 m (Note 20). The full set of rows, with sprinklers and alarms, is on the NBC 2016 page. NBC 2016, Table 7

Fire hydrant system requirements in India: which rule your state applies

BIS withdrew NBC 2016 on 30 April 2026, but a state that names it in its fire law keeps applying Table 7. Find your situation below.

IfYour state's fire act, rules or bye-laws name NBC 2016 (Flamekite found 17 states and UTs)
The Table 7 row for your occupancy and height decides the riser, yard hydrants, tanks and pumps, and the fire officer's NOC conditions add to it. NBC 2016 Gazette of India
IfYour building is in Maharashtra
Schedule-I of the 2006 Act, substituted in 2023, sets the installations by row; for big storage and industrial buildings Note 21(a) sends hydrant design to IS 13039. Fire NOC Maharashtra MH Act 2023 Schedule-I
IfYour building is in Uttarakhand and under 12 m
The order of 6 June 2025 replaces Table 7 with lighter state kits below 12 m. Fire NOC Uttarakhand Uttarakhand GO 2025
IfYour building is in Assam
Since 14 August 2026 the fire Act asks for measures as per the BIS National Building Construction Standards, so NBCS 2026 Part F tables apply. NBC 2026 Assam Act XIII of 2026
IfYour workplace is in Uttar Pradesh with 5 or more floors or 20 m or more
Rule 12 of the UP OSH Rules 2026 binds the employer to NBCS 2026 Part F as well. NBC 2026 UP Gazette
IfYou run a factory
The Model Rules under the Factories Act treat sprinklers and hydrants as additions to, never substitutes for, first-aid fire fighting (rule 68(13)); the fire NOC still follows the state fire rule. Factories DGOSH Model Rules

Fire hydrant system for a building: 3 worked examples

Flamekite's reading of Table 7 for three common buildings in states that name NBC 2016. Your fire service's reading prevails.

Case 1
A 16 m block of flats
Group A-4 apartments, ground plus 4, top floor 16 m, no basement.
What applies A down-comer with a landing valve and hose reel on each floor, fed by a 25,000 litre terrace tank and a terrace pump. No wet riser, yard hydrant or underground tank until the building passes 35 m. NBC 2016, Table 7
Case 2
A 20 m office building
Group E business, 20 m, 1,200 m² floors, no basement.
What applies A wet riser, yard hydrants, a 1,00,000 litre underground tank and a 10,000 litre terrace tank, with one electric and one diesel pump of 2,280 litres a minute and a 180 litre a minute jockey (Note 10). NBC 2016, Table 7
Case 3
A single-storey warehouse of 2,000 m²
Group H storage, 9 m, ground floor only.
What applies Over 250 m², so a wet riser, yard hydrants, a 50,000 litre underground tank and a 10,000 litre terrace tank. Raising it above 15 m is not permitted by Note 20. NBC 2016, Table 7

Fire hydrant system pressure, flow and pump numbers

Six figures from IS 3844 and the NBC 2016 Table 7 notes recur in every hydrant design and test.

30 m
Greatest distance from a hydrant to any point it covers (IS 3844 cl. 5.2.2) BIS, IS 3844:1989
700 kPa
Highest static pressure allowed in a hose line with the nozzle shut (cl. 7.7) BIS, IS 3844:1989
400 kPa
Pressure above which lower-floor outlets get an orifice plate (cl. 7.8) BIS, IS 3844:1989
2,280 l/min
Main and diesel pump size for an office of 15 m to 24 m (Table 7 Note 10); Note 14 asks 1,620 and Note 12 2,850 NBC 2016, Table 7
180 l/min
Jockey pump in the Table 7 pump sets; IS 3844 cl. 7.11 suggests 200 to 300 NBC 2016, Table 7
1,125 l/min
Output 3 adjacent hydrants must give at 5.25 kgf/cm² in Maharashtra's quarterly test MFS Form B guidelines

Fire hydrant pump room and tank rules from IS 3844

Clause 4 fixes where the pump house and tank go and how the pumps are controlled. These are the points inspectors check first.

Do

Put the pump house outside the building, 6 m from adjoining buildings, where you can (cl. 4.2.1). BIS, IS 3844:1989
Inside the building, use only floor one or the basement, behind a 2 hour wall and a 1 hour fire door, with forced ventilation below ground (cl. 4.2.1). BIS, IS 3844:1989
Leave 1 m in front of and behind pumps above 2,280 litres a minute and 0.75 m at the sides, with 2.75 m headroom (cl. 4.2.2). BIS, IS 3844:1989
Run the duty and standby pumps from different power sources, with a diesel generator or separate sub-station and automatic changeover (cl. 4.2.6, 4.2.7). BIS, IS 3844:1989
Keep the underground tank at most 3.5 m deep, sloped 1 in 100 to a sump, with at least 2 manholes (cl. 4.1.1). BIS, IS 3844:1989

Don’t

Do not wire the main pump to stop on its own: only a manual push button on the panel may stop it (cl. 4.2.2). BIS, IS 3844:1989
Do not leave the diesel pump without its own control panel, battery and charger, interlocked with the electric pump (cl. 4.2.2). BIS, IS 3844:1989
Do not prime a suction-lift pump from a tank smaller than 8 times the suction pipe volume (cl. 4.2.4). BIS, IS 3844:1989
Do not block the 6 m access road to the tank, which must carry 18 tonne appliances (cl. 4.1.1). BIS, IS 3844:1989

Who may install a fire hydrant system in India

No national licence exists for hydrant installers. Maharashtra licenses agencies by system and class; elsewhere the fire service accepts the installer's certificate with the NOC file.

Maharashtra
A Licensed Agency only
Section 10(1) of the 2006 Act lets only a Licensed Agency provide fire prevention and life safety measures. Its licence for the fire fighting system needs a best-year turnover of Rs 100 lakh for Class D. MFS Form M
Maharashtra
Form A at handover, Form B twice a year
The agency signs one Form A per building at installation (rule 4(1)); afterwards a licensed agency certifies the system on Form B every January and July. Rules 2009
Maharashtra
One agency per system group
The July 2026 guidelines want pumps, hydrants, sprinklers and other water systems kept by one agency for the whole building (clause 6.1). MFS Form B guidelines
Other states
Licensing and empanelment vary
Some states license or empanel fire agencies, others do not; the state-by-state list shows which. Since 12 June 2025 Maharashtra's certificates are signed by a person with a rule 12 qualification. Amendment Rules 2025

Fire hydrant system testing and commissioning checklist

IS 3844 clause 8 asks for a pressure test and then a flow test before use; Maharashtra's guidelines add the commissioning points below.

Hydraulic test of the whole installation at 700 kPa for at least 30 minutes, with a pressure drop of at most 50 kPa (cl. 8.1). BIS, IS 3844:1989
Flow test at the outlets after the pressure test (cl. 8.2). BIS, IS 3844:1989
Pump flow at 7 kgf/cm² and at 4.5 kgf/cm² recorded and displayed in the pump house at commissioning. MFS Form B guidelines
Pump alignment checked after a 15 minute run. MFS Form B guidelines
Highest hose reel on each riser gives at least 30 litres a minute (0.5 litre a second) when run fully out (cl. 9.7). BIS, IS 3844:1989
Orifice plates fitted where lower floors see more than 400 kPa (cl. 7.8). BIS, IS 3844:1989
Diesel engine started and run for 10 minutes, with fuel in the day tank for 4 hours of running. MFS Form B guidelines
Static tank carries a yellow SWT plate with its capacity in litres (IS 9668 cl. 5.11). BIS, IS 9668:1990
Isolating valves locked open and indicator plates in place at every hydrant (IS 3844 cl. 9.1, 9.2). BIS, IS 3844:1989

Fire hydrant system maintenance checklist: daily to yearly

IS 3844 fixes only a 6-monthly valve inspection and a yearly hose reel test. Maharashtra's Form B guidelines of 7 July 2026 fill in the other cycles, and most AMCs follow them.

Daily
Time the jockey pump cut-in and run the main pump for at least 5 minutes. MFS Form B guidelines
Weekly
Inspect every hydrant, keep isolating valves locked open, and run the diesel engine for 10 minutes. MFS Form B guidelines
Monthly
Open each hydrant and check its washers. MFS Form B guidelines
Quarterly
Flow 3 adjacent hydrants together: at least 1,125 litres a minute at 5.25 kgf/cm². MFS Form B guidelines
Every 6 months
Inspect inlets, landing valves, drain valves and the hinges and locks of inlet and valve boxes (IS 3844 cl. 9.3). BIS, IS 3844:1989
Every 6 months to 2 years
Clean static tanks: open tanks every 6 months, covered tanks at least every 2 years (IS 9668). BIS, IS 9668:1990
Yearly
Run each hose reel fully out under pressure for at least 30 litres a minute, at least the highest on each riser (IS 3844 cl. 9.7). BIS, IS 3844:1989

Fire hydrant system price: official item rates

Flamekite’s working from the official rules; no government publishes this figure.

No Indian schedule prices a whole hydrant system; cost is built up item by item. The Maharashtra PWD Current Schedule of Rates 2018-19 is the official public list Flamekite could read: supplied, erected, tested and commissioned, GST extra.

As published

Main fire pump, 2,400 l/min at 76 m head, 75 HP (item 13-1-3)Rs 2,86,931Single stage; a 1,400 l/min at 56 m pump is Rs 1,21,388 MH PWD CSR 2018-19, ch. 13
Jockey pump, 240 l/min at 56 m head (13-3-1)Rs 63,770Rs 1,16,026 at 105 m head MH PWD CSR 2018-19, ch. 13
Terrace booster pump, 900 l/min at 40 m (13-4-4)Rs 53,809450 l/min at 35 m: Rs 34,680 MH PWD CSR 2018-19, ch. 13
GI C-class pipe above ground, 100 mm (13-5-6)Rs 1,473 a metre150 mm Rs 2,165; 80 mm Rs 1,075; excavation extra MH PWD CSR 2018-19, ch. 13
Single outlet landing valve, gun metal (13-6-30)Rs 7,863Double outlet gun metal Rs 15,255 MH PWD CSR 2018-19, ch. 13
Hose reel drum with 19 mm, 30 m hose (13-7-2)Rs 6,234 MH PWD CSR 2018-19, ch. 13
RRL hose, 63 mm, 15 m length (13-7-4)Rs 4,622CP hose of the same size Rs 3,731 MH PWD CSR 2018-19, ch. 13
Fire brigade inlet (Siamese) to wet riser, 150 mm (13-7-11)Rs 10,021 MH PWD CSR 2018-19, ch. 13
Floor cabinet for hydrant valve, hose, reel and branch (13-7-20)Rs 13,732 MH PWD CSR 2018-19, ch. 13
Comprehensive AMC of hydrant, sprinkler, detection and alarm, one office in New DelhiRs 20,45,880 a yearGeM contract, 2022, GST included CDSCO GeM contract

Rates are eight years old and Maharashtra-specific; the schedule adds a location uplift outside district headquarters. CPWD's current Delhi Schedule of Rates for these items was not available to read. The tank, pump house and civil work are priced in other chapters.

Fire hydrant faults that hold up a fire NOC

Each fault below is a departure from IS 3844 or the Table 7 row that a fire officer can see on site.

If Fire tank smaller than the Table 7 row for the building
Recheck the row for your occupancy and height; a basement over 200 m² adds 5,000 litres to the terrace tank (Note 6). NBC 2016, Table 7
If Only one fire pump, or both pumps on the same power source
Fit a standby pump on a different source, interlocked with the duty pump (IS 3844 cl. 4.2.6, 7.3). BIS, IS 3844:1989
If A point on the floor more than 30 m from any hydrant
Add a landing valve or a second rising main; mains may be at most 50 m apart (cl. 5.2.2). BIS, IS 3844:1989
If Hose reel that leaves a corner more than 6 m from the nozzle
Move the reel or add one, so no point is beyond 6 m at full extension (cl. 6.5). BIS, IS 3844:1989
If Main pump set to stop automatically
Rewire so only the manual push button on the pump panel stops it (cl. 4.2.2). BIS, IS 3844:1989
If Lower floors over pressure, bursting hose
Fit orifice plates where pressure exceeds 400 kPa (cl. 7.8). BIS, IS 3844:1989
If System shut for repair with no notice
Tell the fire service at once and post a notice that the installation is out of use (cl. 9.9). BIS, IS 3844:1989

Fire hydrant system myths owners repeat

Four claims about hydrant systems that the codes do not support.

You may have read
Every building above 15 m needs a wet riser.
Myth
What the sources say
Table 7 gives flats and hostels a down-comer from 15 m to 35 m and a wet riser only above 35 m; schools get a down-comer from 15 m to 24 m. NBC 2016, Table 7
You may have read
IS 3844 sets weekly, monthly and quarterly hydrant checks.
Myth
What the sources say
It sets a 6-monthly inspection of inlets and valves and a yearly hose reel test (cl. 9.3, 9.7); the shorter cycles come from Maharashtra's guidelines and AMC contracts. BIS, IS 3844:1989
You may have read
A hydrant system replaces fire extinguishers.
Myth
What the sources say
Table 7 requires extinguishers in every row except A-2 homes, and the Factories Act Model Rules call hydrants an addition to first-aid fire fighting (rule 68(13)). DGOSH Model Rules
You may have read
IS 3844 covers yard hydrants too.
Myth
What the sources say
Its scope note sends external hydrants to a separate standard, now IS 13039:2014. BIS, IS 3844:1989

What Flamekite could not confirm about fire hydrant systems

Four facts a reader would expect here are not stated, because no official text was available to read on 28 October 2026.

IS 13039:2014 values for yard hydrant spacing and outlet pressure: no lawful copy was read, so they are left to the standard.
Current CPWD Delhi Schedule of Rates (E&M) prices for hydrant items: the rates above are Maharashtra's 2018-19 schedule instead.
HSN code and GST rate for a hydrant installation contract: not confirmed from a CBIC or GST Council notification.
Table 7 tank and pump rows for occupancies not listed above, such as G-1 and G-3 factories: read your row off the printed code or the NBCS 2026 Part F table your state names.

Questions about fire hydrant systems in India

What is a fire hydrant system?

A fixed network of a fire water tank, fire pumps, a wet riser or down-comer, landing valves with hose and branch pipes, hose reels and yard hydrants, kept charged so the fire brigade or trained staff can fight a fire on any floor (IS 3844:1989).

What are the types of fire hydrant system?

Inside a building: a wet riser, a down-comer, a wet-riser-cum-down-comer or a dry riser charged by the fire brigade (IS 3844 cl. 5.0), plus hose reels. Outside: yard hydrants on a ring main.

How does a fire hydrant system work?

Water sits under pressure in the riser, held up by the jockey pump. When a landing valve or hose reel opens, pressure falls and the main pump starts, keeping the riser charged while the hose is in use.

What are the fire hydrant system parts names?

Fire water tank, main pump, diesel standby pump, jockey pump, riser or down-comer, landing valves, hose and branch pipes, hose reels, hose cabinets, fire service inlet, yard hydrants and orifice plates.

Which IS code applies to a fire hydrant system?

IS 3844:1989 for internal hydrants and hose reels, IS 13039:2014 for yard hydrants and IS 9668:1990 for the water supply; landing valves are IS 5290:2025 and pumps follow IS 15301:2003.

What are the fire hydrant system requirements as per NBC?

Under NBC 2016 Table 7, flats get a down-comer from 15 m and a wet riser above 35 m; offices and shops a wet riser and yard hydrant above 15 m; hospitals, five-star hotels, malls and warehouses over 250 m² a wet riser at any height. Your state rule decides.

What is the pressure in a fire hydrant system?

IS 3844 caps static pressure in a shut hose at 700 kPa, asks for orifice plates above 400 kPa, and tests the installation at 700 kPa for 30 minutes. Maharashtra's quarterly test wants 1,125 litres a minute from 3 hydrants at 5.25 kgf/cm².

What does a jockey pump do in a hydrant system?

It makes up small leaks to keep the riser at pressure so the main pump only starts when an outlet opens. IS 3844 suggests 200 to 300 litres a minute; NBC 2016 Table 7 notes use 180.

What is the difference between a wet riser and a down-comer?

A wet riser is fed from a ground or underground tank by the main pump set; a down-comer is fed from the terrace tank by a terrace pump and is used in lower buildings, such as flats of 15 m to 35 m.

What is the fire hydrant system cost in India?

It is priced item by item. Maharashtra's PWD schedule for 2018-19 gives Rs 7,863 for a gun metal landing valve, Rs 6,234 for a hose reel, Rs 1,473 a metre for 100 mm pipe and Rs 2,86,931 for a 2,400 l/min main pump, GST extra.

How often should a fire hydrant system be tested?

IS 3844 asks for a 6-monthly valve inspection and a yearly hose reel flow test. Maharashtra adds daily pump runs, weekly inspections, monthly hydrant opening and a quarterly 3-hydrant flow test.

Who can install a fire hydrant system?

In Maharashtra only a Licensed Agency, which signs Form A at installation. Other states have their own licensing or empanelment, or none; the fire officer checks the installation before the final NOC.

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