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EN 88:1991/A1:1996

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

PRESSURE GOVERNORS FOR GAS APPLIANCES FOR INLET PRESSURE UP TO 200 MBAR
Superseded date

01-11-2007

Published date

19-06-1996

1. General
1.1 Object and field of application
1.2 References
1.3 Definitions
1.4 Classification
1.5 Measuring ratio
2. Construction requirements
2.1 General
2.2 Materials
2.3 Connections
2.4 Seals for glands for moving parts
2.5 Pressure test nipples
3. Performance requirements
3.1 General
3.2 Putting the governor out of action
3.3 External leak-tightness
3.4 Torsion and bending
3.5 Durability
3.6 Governor performance
3.7 text deleted
3.8 Durability of performance
3.9 Lock-up pressure
4. Test methods
4.1 General
4.2 Putting the governor out of action
4.3 External leak-tightness
4.4 Torsion and bending
4.5 Durability
4.6 Governor performance
4.7 text deleted
4.8 Durability of performance
4.9 Lock-up pressure
5. Marking, installation and operating instructions
5.1 Marking
5.2 Installation, operating and servicing instructions
5.3 Warning notice
Annexes
A. Characteristics of combustible gases
B. Typical governors and governor parts
C. Use of ISO 7-1: 1982 and ISO 228-1: 1982 threads
      for gas connections
D. Leak-tightness test - volumetric method
E. Leak-tightness test - pressure loss method
F. Conversion of pressure loss into leakage rate
G. Summary of requirements and test conditions
Tables
1. Connection sizes
2. Maximum external leakage rates
3. Torque and bending moment
4. Gas pressure at inlet to the governor
5. Outlet pressure variation from the outlet setting
      pressure
6. Sequence of testing
7. Tightening torque for flange bolts to ISO 7005-2:
      1988
Figures
1. Arrangement for torsion test
2. Arrangement for bending test
3. Paint scratch test apparatus
4. Governor performance test rig
5. Graph of performance using inlet pressure variation
6. Graph of performance using flow rate variation
7. Types of constant pressure governor (diagrammatic)
8. Apparatus for testing leak-tightness (volumetric
      method)
9. Apparatus for testing leak-tightness (pressure loss
      method)

Describes the safety, constructional and performance requirements for pressure governors for use with gas appliances. Gives test procedures for evaluating these and information necessary for the purchaser and user. Applies to pressure governors for gas-burning appliances of connection size up to and including DN 50 and that may be used and tested independently of these appliances. Suitable for fuel gases of the 1st, 2nd and 3rd families. Does not cover: governors connected to mains and governors for gas appliances installed out-of-doors.

Committee
TC 58
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

Standards Relationship
DIN EN 88:1996-08 Identical
BS 6448:1995 Similar to
I.S. EN 88:1992 Identical
BS EN 88:1991 Identical
NBN EN 12752-1 : 1999 Identical
NBN EN-88 : 93 AMD 1 96 Identical
PN EN 88 : 2005 Identical

12/30254959 DC : 0 BS EN 89 - GAS-FIRED STORAGE WATER HEATERS FOR THE PRODUCTION OF DOMESTIC HOT WATER
06/30139635 DC : 0 EN 777-2 - MULTI-BURNER GAS-FIRED OVERHEAD RADIANT TUBE HEATER SYSTEMS FOR NON-DOMESTIC USE - PART 2: SYSTEM E, SAFETY
06/30139629 DC : 0 EN 777-1 - MULTI-BURNER GAS-FIRED OVERHEAD RADIANT TUBE HEATER SYSTEMS FOR NON-DOMESTIC USE - PART 1: SYSTEM D, SAFETY
07/30163662 DC : 0 BS EN 778 - DOMESTIC GAS-FIRED FORCED CONVECTION AIR HEATERS FOR SPACE HEATING NOT EXCEEDING A NET HEAT INPUT OF 70 KW, WITHOUT A FAN TO ASSIST TRANSPORTATION OF COMBUSTION AIR AND/OR COMBUSTION PRODUCTS
02/707217 DC : DRAFT MAY 2002 PREN 203-1 - GAS HEATED CATERING EQUIPMENT - PART 1: GENERAL SAFETY RULES
DIN EN 12953-7:2002-08 Shell boilers - Part 7: Requirements for firing systems for liquid and gaseous fuels for the boiler; German version EN 12953-7:2002
DIN EN 12952-8:2002-08 Water-tube boilers and auxiliary installations - Part 8: Requirements for firing systems for liquid and gaseous fuels for the boiler
BS EN 297:1994 Gas-fired central heating boilers. Type B<sub>11</sub> and B<sub>11BS</sub> boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
BS EN 613:2001 Independent gas-fired convection heaters
BS EN 12244-1:1998 Direct gas-fired washing machines, of nominal heat input not exceeding 20 kW Safety
EN 12669:2000 DIRECT GAS-FIRED HOT AIR BLOWERS FOR USE IN GREENHOUSES AND SUPPLEMENTARY NON-DOMESTIC SPACE HEATING
EN 12244-1:1998 DIRECT GAS-FIRED WASHING MACHINES, OF NOMINAL HEAT INPUT NOT EXCEEDING 20 KW - PART 1: SAFETY
EN 12752-1:1999 GAS-FIRED TYPE B TUMBLE DRYERS OF NOMINAL HEAT INPUT NOT EXCEEDING 20 KW - PART 1: SAFETY
I.S. EN 483:2000 GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
BS EN ISO 8230-1:2008 Safety requirements for dry-cleaning machines Common safety requirements
07/30163042 DC : DRAFT AUG 2007 BS EN 1319 - DOMESTIC GAS-FIRED FORCED CONVECTION AIR HEATERS FOR SPACE HEATING, WITH FAN-ASSISTED BURNERS NOT EXCEEDING A NET HEAT INPUT OF 70 KW
07/30163658 DC : 0 BS EN 621 - NON-DOMESTIC GAS-FIRED FORCED CONVECTION AIR HEATERS FOR SPACE HEATING NOT EXCEEDING A NET HEAT INPUT OF 300 KW, WITHOUT A FAN TO ASSIST TRANSPORTATION OF COMBUSTION AIR AND/OR COMBUSTION PRODUCTS
PREN 89 : DRAFT 2012 GAS-FIRED STORAGE WATER HEATERS FOR THE PRODUCTION OF DOMESTIC HOT WATER
ISO 10472-1:1997 Safety requirements for industrial laundry machinery Part 1: Common requirements
I.S. EN 12244-1:1998 DIRECT GAS-FIRED WASHING MACHINES, OF NOMINAL HEAT INPUT NOT EXCEEDING 20 KW - PART 1: SAFETY
I.S. EN 12669:2000 DIRECT GAS-FIRED HOT AIR BLOWERS FOR USE IN GREENHOUSES AND SUPPLEMENTARY NON-DOMESTIC SPACE HEATING
I.S. EN ISO 10472-1:2008 SAFETY REQUIREMENTS FOR INDUSTRIAL LAUNDRY MACHINERY - PART 1: COMMON REQUIREMENTS
I.S. EN 12752-1:2000 GAS-FIRED TYPE B TUMBLE DRYERS OF NOMINAL HEAT INPUT NOT EXCEEDING 20 KW - PART 1: SAFETY
I.S. EN 12952-8:2002 WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 8: REQUIREMENTS FOR FIRING SYSTEMS FOR LIQUID AND GASEOUS FUELS FOR THE BOILER
I.S. EN 297:1994 GAS FIRED CENTRAL HEATING BOILERS - TYPE B11 AND B11BS BOILERS FITTED WITH ATMOSPHERIC BURNERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
I.S. EN 613:2000 INDEPENDENT GAS-FIRED CONVECTION HEATERS
06/30149018 DC : 0 EN 15502-1 - GAS-FIRED CENTRAL HEATING BOILERS - PART 1: GENERAL REQUIREMENTS AND TESTS
UNI EN ISO 8230-1 : 2009 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 1: COMMON SAFETY REQUIREMENTS
PREN 26 : DRAFT 2012 GAS-FIRED INSTANTANEOUS WATER HEATERS FOR THE PRODUCTION OF DOMESTIC HOT WATER
DIN EN ISO 10472-1:2009-10 Safety requirements for industrial laundry machinery - Part 1: Common requirements (ISO 10472-1:1997)
BS EN 12752-1:1999 Gas-fired type B tumble dryers of nominal heat input not exceeding 20 kW Safety
EN 483:1999/A4:2007 GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
EN 509:1999/A2:2004 DECORATIVE FUEL-EFFECT GAS APPLIANCES
EN 12953-7:2002 Shell boilers - Part 7 : Requirements for firing systems for liquid and gaseous fuels for the boilers
UNI EN ISO 10472-1 : 2009 SAFETY REQUIREMENTS FOR INDUSTRIAL LAUNDRY MACHINERY - PART 1: COMMON REQUIREMENTS
00/705373 DC : DRAFT FEB 2000 PREN 13836 - GAS-FIRED CENTRAL HEATING BOILERS - TYPE B BOILERS OF NOMINAL HEAT INPUT EXCEEDING 300 KW BUT NOT EXCEEDING 1000 KW
12/30254956 DC : 0 BS EN 26 - GAS-FIRED INSTANTANEOUS WATER HEATERS FOR THE PRODUCTION OF DOMESTIC HOT WATER
07/30163045 DC : DRAFT AUG 2007 BS EN 525 - NON-DOMESTIC DIRECT GAS-FIRED FORCED CONVECTION AIR HEATERS FOR SPACE HEATING NOT EXCEEDING A NET HEAT INPUT OF 300 KW
DIN EN ISO 8230-1:2009-05 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 1: COMMON SAFETY REQUIREMENTS
I.S. EN ISO 8230-1:2008 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 1: COMMON SAFETY REQUIREMENTS
BS EN 12669:2000 Direct gas-fired hot air blowers for use in greenhouses and supplementary non-domestic space heating
ISO 8230-1:2008 Safety requirements for dry-cleaning machines Part 1: Common safety requirements
BS EN 12953-7:2002 Shell boilers Requirements for firing systems for liquid and gaseous fuels for the boilers
BS EN 656:2000 Gas-fired central heating boilers. Type B boilers of nominal heat input exceeding 70 kW, but not exceeding 300 kW
BS EN 13836:2006 Gas fired central heating boilers. Type B boilers of nominal heat input exceeding 300 kW, but not exceeding 1000 kW
BS EN 509:2000 Decorative fuel-effect gas appliances
BS EN 483 : 2000 GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
BS EN 732:1999 Specifications for dedicated liquefied petroleum gas appliances. Absorption refrigerators
BS EN 303-7:2006 Heating boilers Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1000 kW
BS EN 1266:2002 Independent gas-fired convection heaters incorporating a fan to assist transportation of combustion air and/or flue gases
BS EN 12952-8:2002 Water-tube boilers and auxiliary installations Requirements for firing systems for liquid and gaseous fuels for the boiler
EN 297:1994/A2:1996/AC:2006 GAS-FIRED CENTRAL HEATING BOILERS - TYPE B[11] AND B[11BS] BOILERS FITTED WITH ATMOSPHERIC BURNERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW
EN ISO 10472-1:2008 Safety requirements for industrial laundry machinery - Part 1: Common requirements (ISO 10472-1:1997)
EN 656:1999/A1:2006 GAS-FIRED CENTRAL HEATING BOILERS - TYPE B BOILERS OF NOMINAL HEAT INPUT EXCEEDING 70 KW BUT NOT EXCEEDING 300 KW
EN ISO 8230 : 1997 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES USING PERCHLOROETHYLENE
EN 13836:2006 Gas fired central heating boilers - Type B boilers of nominal heat input exceeding 300 kW, but not exceeding 1 000 kW
UNI EN 656 : 2008 GAS-FIRED CENTRAL HEATING BOILERS - TYPE B BOILERS OF NOMINAL HEAT INPUT EXCEEDING 70 KW, BUT NOT EXCEEDING 300 KW
EN 303-7:2006 Heating boilers - Part 7: Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1 000 kW
EN 732:1998 Specifications for dedicated liquefied petroleum gas appliances - Absorption refrigerators
EN ISO 8230-1:2008 Safety requirements for dry-cleaning machines - Part 1: Common safety requirements (ISO 8230-1:2008)
I.S. EN ISO 8230:1998 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES USING PERCHLOROETHYLENE
95/717426 DC : DRAFT JAN 1996 SPECIFICATION FOR DOMESTIC GAS FIRED HEATING APPLIANCES - PART 2: COMBINED APPLIANCES - GAS FIRE/BACK BOILER
07/30163039 DC : DRAFT AUG 2007 BS EN 1020 - NON-DOMESTIC FORCED CONVECTION GAS-FIRED AIR HEATERS FOR SPACE HEATING NOT EXCEEDING A NET HEAT INPUT OF 300 KW INCORPORATING A FAN TO ASSIST TRANSPORTATION OF COMBUSTION AIR OR COMBUSTION PRODUCTS
06/30139641 DC : 0 EN 777-3 - MULTI-BURNER GAS-FORED OVERHEAD RADIANT TUBE HEATER SYSTEMS FOR NON DOMESTIC USE - PART 3: SYSTEM F - SAFETY
BS EN ISO 10472-1:2008 Safety requirements for industrial laundry machinery Common requirements
ISO 8230:1997 Safety requirements for dry-cleaning machines using perchloroethylene
EN 12952-8:2002 Water-tube boilers and auxiliary installations - Part 8: Requirements for firing systems for liquid and gaseous fuels for the boiler
EN 1266:2002/A1:2005 INDEPENDENT GAS-FIRED CONVECTION HEATERS INCORPORATING A FAN TO ASSIST TRANSPORTATION OF COMBUSTION AIR AND/OR FLUE GASES
EN 613:2000/A1:2003 INDEPENDENT GAS-FIRED CONVECTION HEATERS
DIN EN 303-7:2007-05 Heating boilers - Part 7: Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1 000 kW
DIN EN 13836:2007-06 Gas-fired central heating boilers - Type B boilers of nominal heat input exceeding 300 kW, but not exceeding 1000 kW

ISO 274:1975 Copper tubes of circular section — Dimensions
ISO 6708:1995 Pipework components Definition and selection of DN (nominal size)
ISO 262:1998 ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
ISO 65:1981 Carbon steel tubes suitable for screwing in accordance with ISO 7-1
ISO 301:2006 Zinc alloy ingots intended for castings
ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
ISO 1817:2015 Rubber, vulcanized or thermoplastic Determination of the effect of liquids
IEC 60730-1:2013+AMD1:2015 CSV Automatic electrical controls - Part 1: General requirements

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