Venting lines on tanks, vessels and pipelines that enables an on-going gas exchange (flammable or combustible air-gas mixture) must be protected using explosion-proof devices. Explosion-proof KITO® ventilation hoods are designed as deflagration proof or as devices that protect against endurance burning.
Flammable vapours can flow out of tanks and/or ambient air can flow in without restriction. The ingress of rain, dirt and foreign bodies is prevented by a protective cover. Here, the integrated KITO® flame arrester protects against flame transmission into the tank. For cases where a vapour/air mixture might burn for a very long time on the flame arrester element surface, KITO® provides, so called, endurance burning proof flame arresters. Meeting the highest level of safety for burning scenarios.
Our KITO® ventilation hoods help to protect your production and storage facilities. We can devise a made-to-measure solution for your particular application.
KITO® vacuum relief valves are used where closed systems are being emptied or cooled by their local environment, preventing, for example, negative pressure to damage storage tanks.
KITO® vacuum relief valves can also be equipped with a KITO® flame arrester that prevents flashback from atmosphere to storage tank. These KITO® vacuum relief valves can be used for atmospheric deflagration scenarios. There is not usually any risk of an endurance burning in typical applications involving a vacuum.
Valve pallets for KITO® vacuum relief valves are designed either weight-loaded or spring-loaded, depending on the pressure settings required.
All KITO® valves use a range of different valve sealings to suit the prevailing process conditions to assure low rates of leakage between valve seat and valve pallet.
KITO® DS/o cont. 32
KITO® DS/o cont. 25
KITO® DS/cont. 25
KITO® K/DVE-IIB3-80
KITO® K/VG
KITO® VS/o cont. …
KITO® VS/cont. …
KITO® K/DO-…
KITO® Rd/C-Det4-IIA-…-1.2
KITO® DE/cont. 20
If potentially explosive gas-air mixtures ignite in a section of pipeline, the explosion starts out as a deflagration propagating at relatively low pressures and flame speed below speed of sound.
KITO® inline deflagration flame arresters are used to prevent a chain reaction from propagating into connected sections of equipment.
In contrast to inline detonation flame arresters, their usage is restricted to short sections of pipelines between a potential ignition source and the device. This distance, known by the L/D relation (ratio of pipe length over pipe diameter) is specified for each explosion group in the standard ISO 16852.
By stating the maximum operating parameters such as pressure, temperature and explosion group, the appropriate deflagration flame arrester can be selected for a given application.
Under particular application conditions such as installation in flare lines or thermal incineration plants, the installation of one or more thermocouples on the KITO® flame arrester is specified to enable detection of a fire.
If potentially explosive gas-air mixtures ignite in a section of pipeline, a deflagration can turn into a detonation under certain instances.
The impact of such detonation is considerable with greatly increased pressure and flame speed; our KITO® detonation detonation flame arresters and end of line detonation flame arresters (also known as detonation-proof foot valve) are designed for such scenarios. The installed KITO® flame arrester remains functional and arrests the flame front following the shock wave. The selection of an appropriate detonation flame arrester is based upon a classification of the working medium in explosion groups and the maximum operating parameters for pressure and temperature.
Our product range includes KITO® detonation flame arresters for all explosion groups in different applications. The installation position and the direction of flow is arbitrary since almost all KITO® detonation flame arresters are bi-directional which means they can offer protection in both directions. KITO® flame arresters are optimised for low pressure losses combined with an inexpensive modular design. Liquid detonation flame arresters are used predominantly in pipelines used to transport liquids. Detonation-proof foot valves are used exclusively in suction lines that transport liquids.
KITO® –Special devices – plastic valves
KITO® Armaturen GmbH has more than 90 years of experience on this market, time that it has used to develop a multi-faceted, high-quality range of valve technology products.
Plastic valves are used primarily for aggressive, corrosive and environmentally hazardous liquids, gases and vapours. Whereas products made of metal can rust when in contact with water and air unless protected in an appropriate manner, corrosion is not a problem at all for KITO® plastic valves.
KITO® plastic valves can be used as pressure or vacuum relief valves as well combined pressure & vacuum relief valves in the low-pressure range. The choice of material for KITO® plastic valves includes PP, PE and PVDF.
KITO® plastic valves are also characterised by great seal integrity and this has a decisive impact on potential product losses and their environmental impact. Our plastic valves can also satisfy your individual needs and can contend reliably with very stringent requirements.
KITO® VD/oSR-…
KITO® VD/ScS-…
KITO® VS/ScS-…
KITO® DS/ScS-…
(with and without KITO®-flame arrester element)
Used for gases or vapors, against which cast iron, steel including Cro-Ni-Mo alloys are not resistant.
KITO® VD/oSA-…
End-of-line deflagration flame arrester endurance burning proof
KITO® SK/K-IIA-…
(End-of-line and inline armatures with and without KITO® flame arrester)
Application
If an indication is desired or required (e. g. VdTÜV-guideline 967, §9.2.2.2), if the valve disk is in the position „closed“ or if a signal should be given if the valve opens.
(with and without KITO® flame arrester)
Application
HORST®-Heating sleeves can be used on valve housings and serve as frost protection heating or for temperature maintenance for ambient temperatures of -40 °C to +85 °C.
Application
Application
Warm-water / steam heating, as frost protection or to maintain temperatures in the armature housings. Maximum temperature of the heating medium:
KITO®-flame arresters :
Max. 25 K above the permissible operating temperature, but no more than 80% the ignition temperature
other KITO®-armatures :
• For flammable products max. 80% of the auto-ignition temperature
• For non-flammable products established in accordance with design and materials
Specification according to CEN-TR 16793, §6.7
Note :
Heating jackets are usually subject to the Pressure Equipment Directive (PED) and they need CE-marking.
(with and without KITO® flame arrester)
Application
Warm-water / steam heating, as frost protection or to maintain temperatures in the armature housings. Maximum temperature of the heating medium:
KITO®-flame arresters :
Max. 25 K above the permissible operating temperature, but no more than 80% the ignition temperature
other KITO®-armatures :
• For flammable products max. 80% of the auto-ignition temperature
• For non-flammable products established in accordance with design and materials
Specification according to CEN-TR 16793, §6.7
Note :
Heating jackets are usually subject to the Pressure Equipment Directive (PED) and they need CE-marking.
End-of-line deflagration flame arrester endurance burning proof
KITO® SK/K-IIB1-…
Deflagration flame arrester proof
KITO® KA-IIB3-1/2”
(Resistance thermometer)
End-of-line deflagration flame arrester endurance burning proof
KITO® KA-DB-IIB-1/2”
End-of-line deflagration flame arrester endurance burning proof
KITO® ZP/R-IIB-1/2″
-design with flange connection-
End-of-line deflagration flame arrester endurance burning proof
KITO® ZP/R-IIB-1/2″
1. Tank farms (see page A 01.1 N – A 01.5 N)
2. Process plants
3. Thermal treatment plants (see page A 03.1 N)
4. Loading and unloading process as part of logistics (see page A 04.1 N – A 04.3 N)
5. Vapor recovery units (VRU’s)
6. Components as safety part of devices
7. Protection of other plants – not illustrated- (see page A 07.1 N – A 07.2 N)