Fire Extinguisher Supply, Installation and Refilling

Portable Fire Extinguishers: The First Line of Defence

Most fires start small: a wastepaper bin, an overheated motor, a pan of oil, a short circuit in a panel. In those first minutes, a correctly chosen portable extinguisher in the hands of someone who knows how to use it can stop a fire before it spreads. That is why extinguishers are required in almost every building, from a single shop to a high-rise hospital, and why a fire officer will look at them in every inspection.

An extinguisher only works if three things are right: it must be the right type for the fire risk, it must be in the right place and easy to reach, and it must be charged, pressurised and in sound condition on the day it is needed. Our service covers all three: we assess the risks, supply and install ISI-marked extinguishers in the right positions, and keep them in working order through inspection, refilling, hydraulic pressure testing and replacement.

Types of Extinguisher and Where Each One Is Used

Fires are grouped into classes by what is burning, and each extinguisher type is rated for particular classes. Using the wrong type can be useless or dangerous: water on an electrical panel or a cooking oil fire puts the user at serious risk. Our fire extinguisher types guide explains the classes of fire in detail. In brief, Class A covers ordinary solids such as wood, paper, cloth and plastics; Class B flammable liquids; Class C flammable gases; Class D burning metals; electrical risks are treated separately; and Class K (labelled Class F in some systems) covers cooking oils and fats in commercial kitchens.

• ABC dry powder (multi-purpose): the most widely used type, suitable for Class A, B and C fires and for use near electrical equipment. Common in offices, shops, schools, residential common areas and vehicles. The powder leaves residue, so it is less suited to delicate electronics.
• Carbon dioxide (CO2): for flammable liquids and electrical equipment such as panels, server racks, DG sets and transformers. It leaves no residue but gives limited cooling, and it should not be used in small, unventilated rooms where people remain.
• Water (stored pressure) and water mist: for Class A fires in offices, schools, hostels, warehouses of paper and textiles. Plain water must never be used on electrical or oil fires; water mist units are tested for a wider range of risks.
• Mechanical foam (AFFF type): for Class A and B fires, used in fuel stores, paint shops, garages, solvent stores and petroleum handling areas.
• Clean agent: leaves no residue and is suitable for electrical and electronic equipment, control rooms, server rooms, laboratories, archives and museums.
• K-class wet chemical: designed for cooking oil and fat fires in commercial kitchens, hotel and hospital kitchens and canteens, where the agent forms a soapy layer that seals and cools the oil.
• D-class powder: special powder for metal fires such as magnesium, aluminium swarf or sodium, used in specific industrial processes.
• Mobile (trolley-mounted) extinguishers: larger capacity units on wheels for fuel yards, transformer yards, warehouses and industrial areas with a higher risk.

Indian Standards and Code Requirements

Two Indian Standards matter most for portable extinguishers. IS 15683 (Portable Fire Extinguishers, Performance and Construction, Specification) sets the performance and construction requirements for the extinguishers themselves, and extinguishers made to it are certified by BIS under the ISI mark. IS 2190 covers the selection, installation and maintenance of first aid fire extinguishers, including how many to provide, where to put them, and how they must be inspected, maintained, refilled and pressure tested. BIS published a revised edition of IS 2190 in 2024, and we follow the current edition.

Part F (Fire and Life Safety) of the National Building Construction Standards 2026 (NBCS 2026, SP 7:2026) lists first aid fire-fighting appliances as a basic requirement for practically every occupancy group, from residential buildings to industrial and hazardous premises, in addition to whatever hydrant, sprinkler or alarm systems the building needs. Part F replaced Part 4 of the National Building Code of India 2016 (NBC 2016) from 30 April 2026, and state rules may still cite the 2016 edition until they are updated. In Madhya Pradesh, the fire authority applies these requirements together with the Madhya Pradesh Bhumi Vikas Rules, 2012 (as amended). Older inverted-type soda-acid and chemical foam extinguishers are obsolete and should be replaced with current stored-pressure or cartridge types.

The number, type and rating of extinguishers depends on the floor area, the class of fire risk and the hazard level of each area. We calculate it floor by floor rather than applying a single rule across the building, and we confirm the final layout against what the fire authority expects for your occupancy.

Supply and Installation: What We Do

1. 1Risk walk-through: we visit the premises and note the activities, materials and hazards in each area: offices, stores, electrical rooms, DG sets, kitchens, workshops, fuel stores, server rooms, parking.
2. 2Selection: for each area we choose the extinguisher type and capacity to suit the class of fire and hazard level, following IS 2190.
3. 3Layout: we mark positions on your floor plans, normally along escape routes, near exits, at staircase landings and close to specific hazards, keeping travel distances within the limits of the standard.
4. 4Supply: we supply ISI-marked extinguishers to IS 15683 from established manufacturers, with manufacturing details, batch numbers and warranty documents.
5. 5Installation: units are wall-mounted on brackets or placed on stands at a height that ordinary users can reach, with the operating instructions facing outwards and nothing blocking access.
6. 6Signage: photoluminescent location signs and, where helpful, a sign showing the extinguisher type and the fires it should be used on.
7. 7Records: each extinguisher is numbered and listed on a register with type, capacity, location, date of manufacture, and dates for its next refilling and hydraulic pressure test.
8. 8Handover and demonstration: we show your staff how to identify the right extinguisher and how to use it, and leave the register and maintenance schedule with you.

Refilling and Recharging

An extinguisher must be refilled after any use, even a short discharge, and also at the periodic intervals set out in IS 2190 for its type, because powder can cake, foam concentrate can degrade, and stored pressure can leak away over time. A cylinder that has lost pressure, has a broken seal or a missing safety pin, or whose gauge is out of the green zone must be taken out of service and recharged.

When we refill an extinguisher we do more than top it up. The unit is fully discharged and opened, the body is inspected inside and out for corrosion, dents and damage, the valve, hose, nozzle and seals are cleaned or replaced, and fresh extinguishing medium of the correct specification is filled by weight. The unit is then pressurised, checked for leaks, sealed, tagged with the refilling date and next due date, and recorded in your register.

To keep your premises protected while units are away, we refill in batches or supply standby extinguishers for the period, so that no area is left without cover. CO2 and clean agent units are refilled with the correct agent by weight, and their cylinders are checked for the required test status before recharging.

Hydraulic Pressure Testing

Over the years, an extinguisher body can be weakened by internal corrosion, a dent or a manufacturing flaw that is not visible from outside. Because it holds pressure, a weak shell can rupture during use. Hydraulic pressure testing, often called hydro testing, checks that the body can safely hold well above its working pressure. IS 2190 sets out when this test is due for each type of extinguisher and the test procedure to follow.

In the test, the extinguisher is emptied, filled with water and pressurised to the specified test pressure for a set time while it is checked for leaks, bulging or permanent deformation. A unit that passes is dried, refilled and labelled with the test date. A unit that fails must be condemned and removed from service; it cannot be repaired and reused. CO2 extinguishers are high-pressure gas cylinders and are also subject to the periodic testing and marking requirements for gas cylinders.

We keep a record of each test against the extinguisher's serial number. This record is one of the documents fire officers commonly ask to see at inspection and at Fire NOC renewal.

Routine Inspection and Maintenance

Between refills and pressure tests, extinguishers need regular checks. IS 2190 asks the occupier to inspect extinguishers routinely and to have them maintained by a competent person at set intervals. Simple monthly checks by your own staff catch most problems, and our periodic maintenance visits deal with the rest.

• Is the extinguisher in its marked place, visible and not blocked by stock, furniture or parked vehicles?
• Is the pressure gauge needle in the green zone (for stored-pressure types)?
• Is the safety pin in place and the tamper seal unbroken?
• Is the hose or horn free of cracks, blockages and insect nests?
• Is the body free of rust, dents and damage, and is the label readable?
• For CO2 units, is the weight within the permitted loss of the marked charge?
• Is the refilling and hydraulic test date on the tag still within the allowed interval?
• Has the unit reached the end of its service life and been replaced?

What the Fire Officer Checks

Extinguishers are among the first things a fire officer examines, both at a Final Fire NOC inspection and during later enforcement visits. Most observations on extinguishers are easy to avoid with a little planning.

• That every floor and area has extinguishers of a suitable type and number for the risk, as shown on the approved drawings.
• That units are ISI-marked and the right type for special risks, for example CO2 or clean agent near electrical panels and K-class in commercial kitchens.
• That they are mounted, accessible and signed, not stored in a cupboard or hidden behind goods.
• That they are charged, with valid refilling and pressure test dates on the tags.
• That a register or maintenance record is kept and up to date.
• That staff present can say which extinguisher to use on which fire and how to operate it.

Worked Example: An Illustrative Small Factory Layout

The following example is illustrative only, to show how we think about selection. The actual number and positions for any building are worked out against IS 2190 and the fire authority's expectations at the survey.

Imagine a single-storey engineering unit in Pithampur with an office block, a machine shop, a paint booth, a store of packing material, an LT electrical panel room, a DG set and a small staff canteen with a gas cooking range. The office and packing store mainly face Class A risks, so water or ABC powder units are spread along the routes to the exits. The machine shop, with cutting oil and mixed materials, takes ABC powder units plus foam near any oil storage. The paint booth and solvent store need foam and CO2 near the doors. The electrical panel room and DG set take CO2 units at the entrance, with a trolley-mounted unit considered for the DG and transformer yard. The canteen kitchen gets a K-class wet chemical unit near the cooking range and an ABC unit near the exit. Each position is marked on the plan, numbered, and entered into the register with its refilling and test dates.

Fire Extinguisher Services in Indore, Pithampur, Dewas and Across MP

We supply, install and maintain extinguishers for offices, shops, showrooms, schools and coaching centres, hospitals and clinics, hotels and restaurants, residential societies, warehouses and factories across Indore. Industrial units in Pithampur, Sanwer Road, Dewas and nearby estates often have mixed risks such as oils, solvents, gas cylinders and large electrical installations, which call for careful selection rather than a single extinguisher type throughout.

We also serve clients in Ujjain, Bhopal and the rest of Madhya Pradesh, and can take up projects in other cities on request. For larger sites with many extinguishers, we can set up a refilling and testing calendar so that units are serviced in planned batches through the year instead of all at once.

Why Work With DSTechnoverse

Extinguisher work at DSTechnoverse is overseen by Mohit Malviya, our accredited fire engineer, who also leads our Fire NOC and fire system installation work. Selection and layout are done with the whole building in mind, so the extinguishers fit together with your hydrants, sprinklers, alarms and suppression systems, and the paperwork matches what is filed with the fire authority.

We supply ISI-marked equipment, refill with the correct agents by weight, keep proper test records, and tell you plainly when an extinguisher should be condemned rather than refilled. Extinguisher servicing can also be included in a fire fighting AMC together with your other systems. Send us your floor plans or a list of your existing extinguishers through the contact page to get started.

Frequently Asked Questions

Guides and Resources

• Fire NOC Consultant →
• Fire Fighting System Installation →
• Fire Suppression System Installation →
• Fire Fighting AMC →
• Fire Safety Audit →
• Fire Extinguisher Types Guide →