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BS 799-4:1991



A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Oil burning equipment Specification for atomizing burners (other than monobloc type) together with associated equipment for single burner and multi burner installations

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Superseded date




Published date


Committees responsible
1. Scope
2. Definitions
3. Burner operating sequences
4. Types of oil burner control
5. Purging, ignition and flame failure
6. Materials and components
7. Painting and identification
8. Electrical equipment
9. Operating instructions
10. Marking
A. Recommendations for safety of plant to which oil
     burners are fitted
B. Classification of atomizing oil burners
C. Recommendations on the maximum degree of filtration
     for different classes of fuel
1. Burner operating sequence
2. Maintenance of single non-mechanical filters:
     minimum intervals between cleaning
3. Minimum storage and outflow temperatures for
     classes C, D, E, F, G and H oil fuels and ALF
4. Recommended maximum degree of filtration for
     classes C, D, E, F and G oil fuel
5. Recommended maximum degree of filtration for ALF
     and class H oil fuel

Requirements for installations for land and marine purposes which may comprise arrangement of burners and associated equipment that is not assembled in the same frame or housing. The installation to be for use with liquid fuels to BS 2869 or Alternative Liquid Fuels (ALF) having essentially similar characteristics.

Supersedes BS 799-4(1972) and 91/72756 DC (04/2005) Reviewed and confirmed by BSI, November 2008. (10/2008)
British Standards Institution

This Part of BS 799 specifies oil burning installations for land and marine purposes. The installations may comprise single or multiple arrangement of atomizing type burners and associated equipment that is not assembled on the same frame or in the same housing. The installations are for use with liquid fuels as specified in BS 2869 or Alternative Liquid Fuels (ALF) having essentially similar characteristics. Reference to oil burners, oil heaters, etc. implies use with either liquid fuel.

This standard does not apply to gas turbines and internal combustion engines.

NOTE 1 Where the oil burning installation is part of a plant that is required to be certified under the Health and Safety at Work etc. Act 1974 or any other legislation, reference should be made to such legislation.

Attention should also be given to SI 2169, 1989, The Pressure Systems and the Transportable Gas Containers Regulations 1989, as parts of these are pertinent to certain aspects of large burner installations, especially those with steam oil-preheaters.

NOTE 2 For burners burning fuel at below 30 kg/h, see BS EN 230 with respect to safety times.

NOTE 3 The titles of the publications referred to in this standard are listed on page 20.

BS 1740:1965 Specification for pipe fittings iron and steel (screwed BSP thread).
BS 2051-1:1973 Tube and pipe fittings for engineering purposes Copper and copper alloys capillary and compression tube fittings for engineering purposes
BS 5410-3:1976 Code of practice for oil firing Installations for furnaces, kilns, ovens and other industrial purposes
BS 3955:1986 Specification for electrical controls for household and similar general purposes
BS 1710:1984 Specification for identification of pipelines and services
BS 4504-3.1:1989 Circular flanges for pipes, valves and fittings (PN designated). Steel, cast iron and copper alloy flanges Specification for steel flanges
BS 2871-1:1971 Specification for copper and copper alloys. Tubes Copper tubes for water, gas and sanitation
BS 6351-3:1983 Electric surface heating Code of practice for the installation, testing and maintenance of electric surface heating systems
BS 3602:1962 Specification for steel pipes and tubes for pressure purposes. Carbon steel high duties.
BS 4368-3:1974 Metallic tube connectors for fluid power and general use Specification for light series couplings (metric)
BS 970(1972) : LATEST
BS 1387:1985 Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads
EN 230:2005 Automatic burner control systems for oil burners
BS 2871-2:1972 Specification for copper and copper alloys. Tubes Tubes for general purposes
BS 4256-2:1972 Specification for oil-burning air heaters Fixed, flued, fan-assisted heaters
BS 3212:1991 Specification for flexible rubber tubing, rubber hose and rubber hose assemblies for use in LPG vapour phase and LPG/air installations
BS 5410-2:1978 Code of practice for oil firing Installations of 45 kW and above output capacity for space heating, hot water and steam supply services
BS 799-7:1988 Oil burning equipment Specification for dimensions of atomizing oil burner pumps with rotating shaft and external drive
BS 1306:1975 Specification for copper and copper alloy pressure piping systems
BS 4368-1:1972 Compression couplings for tubes Specification for heavy series couplings (metric)
BS 5422:2001 Method for specifying thermal insulating materials for pipes, tanks, vessels, ductwork and equipment operating within the temperature range -40°C to +700°C
BS 2869:1998 Specification for fuel oils for agricultural, domestic and industrial engines and boilers
BS 799-8:1988 Oil burning equipment Specification for connecting dimensions between atomizing oil burners and heat generators

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