Water fire extinguishers

Specifications

  • Water fire extinguishers can be used for Class A fires i.e. solids only, such as wood, paper, plastics and fabrics. They are not suitable for controlling Class B liquid fires e.g. paraffin, petrol, oil based fires, including chip pan fires, or on electrical fires and where electricity is involved unless the supply can be disconnected first. Water fire extinguishers are colour coded with a red label. The fire extinguisher works by water under pressure cooling burning material.

Foam fire extinguishers

Specifications

  • Spray Foam is a water based extinguisher, suitable for both Class A & B fires. Spray Foam works by cooling and smothering the fire. It has the ability to reduce the risk of fire reigniting. Once the fire has been extinguished the foam effectively seals the vapours at the same time as cooling the fire.

Carbon Dioxide fire extinguishers

Specifications

  • Carbon Dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge. Carbon dioxide can be used on Class B & C fires. They are usually ineffective on Class A fires.

Dry Chemical fire extinguishers

Specifications

  • Dry Chemical fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle.
  • Today's most widely used type of fire extinguisher is the multipurpose dry chemical that is effective on Class A, B, and C fires. This agent also works by creating a barrier between the oxygen element and the fuel element on Class A fires.
  • Ordinary dry chemical is for Class B & C fires only. It is important to use the correct extinguisher for the type of fuel! Using the incorrect agent can allow the fire to re-ignite after apparently being extinguished successfully.

Wet Chemical extinguishers 

Specifications

  • Wet Chemical is a new agent that extinguishes the fire by removing the heat of the fire triangle and prevents re-ignition by creating a barrier between the oxygen and fuel elements.
  • Wet chemical of Class K extinguishers were developed for modern, high efficiency deep fat fryers in commercial cooking operations. Some may also be used on Class A fires in commercial kitchens.

Fire hose reels

Specifications

  • Fire hose reels are located to provide a reasonably accessible and controlled supply of water to combat a potential fire risk. The length of a fully extended fire hose is 36 meters with a diameter of 19mm (outside diameter).
  • These appliances are designed to deliver, as a minimum, 0.33L of water per second. A control nozzle attached to the end of the hose enables the operator to control the direction and flow of water to the fire. All fire hose reels come with a unique ball valve shut-off device, a plastic or solid brass hose reel nozzle and mounting bracket.

Dry Barrel Hydrant

Specifications

  • In a dry-barrel hydrant, the vertical portion of the hydrant (barrel) is empty of water (dry). The upper section remains dry until the main valve is opened by means of a long stem that extends up through the top (bonnet) of the hydrant. The main valve is located at the barrel's , prevents water from entering the barrel during normal conditions.
  • To operate a dry-barrel hydrant, one of the hydrant nozzle caps is removed, and then the operating nut on the top of the hydrant is turned to open the valve, which allows water to flood the hydrant barrel. Dry-barrel hydrants are typically used in cold weather climates to prevent water from freezing in the barrel, which would damage the hydrant and hinder its operation in an emergency.

Wet Barrel Hydrant

Specifications

  • Wet-barrel hydrants operate similarly to dry barrel hydrants; however, the main valve is located at the top of the barrel, and the barrel is constantly filled with water.
  • Manufacturers intend wet-barrel hydrants only be used in climates where temperatures never drops below 32°F since they are always charged (loaded) with water.

Test and Drainage Valves

Specifications

  • In sprinkler systems, these valves are used for the testing systems and drain the unnecessary fluids from the systems.
  • Advantages: They have sight glasses in their body,single valve is sufficient to drain the line
  • For choosing the test and drain valves, users should pay attention to line diameter. Also these valves have to have same diameter with the sprinkler orifice diameter.

Check Valve

Specifications

  • Check valves allow the flow in single direction. They prevent the water returns and protect the equipment. That’s why these products are so important for the fire systems. They are also suitable for using indoor and outdoor.
  • Advantages: They protect the equipment, than save some cost from the system

Pressure Reducing Valve

Advantages

  • Increases the system equipment life and save the water in tank which is used for unnecessary operations. These valves are used to reduce the pressure which is over the limits on the system.
  • After hydraulic calculations, users obtain the design pressure, after that users do same hydraulic calculations for the other areas. In this areas fire pump are selected according to the highest pressure. For this pressure adjustments pressure reducing valves are used. Users have use manometer with these valves in front and back.
  • By the output of the valve pressure reducer ½ ” provided that it is not smaller than the relief valve should be used. May not exceed 12.1 bar relief valve setting pressure.

Flow Switch

Specifications

  • In wet pipe systems, generally pedal type water alarm switches are used for informing users 4-10 gpm water flow has started. Water flow switches are used in Aqueous and foam fire extinguishing systems.
  • They are used in only wet pipe systems. Because of the dry contact feature it appears on the control panel.
  • Flow switches are suitable for the using in indoor and outdoor.

Breeching Inlet Valve

Specifications

  • Breeching Inlets are suitable for installation on dry riser only, in a building for firefighting purposes, fitted with inlet connection at fire brigade access level and outlet connection at specified points, which is normally dry but capable of being charged with by pumping from the service appliances.