1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58fittings with circular cross-section DimensionsThe European Standard EN 1506:2007 has the status of
2、 a British StandardICS 91.140.30Ventilation for buildings Sheet metal air ducts and BRITISH STANDARDBS EN 1506:2007BS EN 1506:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007ISBN 978 0 580 58082 6Amendments issue
3、d since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 1506:2007. It supersedes BS EN 1506:1998 which i
4、s withdrawn.The UK participation in its preparation was entrusted to Technical Committee RHE/2, Ventilation for buildings, heating and hot water services.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all
5、 the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1506June 2007ICS 91.140.30 Supersedes EN 1506:1997 English VersionVentilation for buildings - Sheet metal air ducts and fittings withcircular cross-section - DimensionsVentilation des btiments - Conduits en tle et acces
6、soires section circulaire - DimensionsLftung von Gebuden - Luftleitungen und Formstcke ausBlech mit rundem Querschnitt - MaeThis European Standard was approved by CEN on 24 May 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving th
7、is EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (E
8、nglish, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria
9、, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATION
10、COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1506:2007: EEN 1506:2007 (E) 2 Contents Page Foreword. 3 Introduc
11、tion 4 1 Scope 6 2 Normative references . 6 3 Terms, definitions and symbols 6 4 Dimensions and values for ducts 7 5 Dimensions for fittings. 8 5.1 General. 8 5.2 Joints 8 5.3 Bends . 9 5.4 Branches and T-pieces. 10 5.4.5 Transformation pieces 13 5.4.6 Closures. 14 6 Tolerances and clearances 15 Ann
12、ex A (informative) Examples of alternative designs of ends and connectors 18 Bibliography . 21 EN 1506:2007 (E) 3 Foreword This document (EN 1506:2007) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which is held by BSI. This European Standard sha
13、ll be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2007, and conflicting national standards shall be withdrawn at the latest by December 2007. This document supersedes EN 1506:1997. This standard is one of a series o
14、f standards for ductwork used for ventilation and air conditioning of buildings for human occupancy, and it has a parallel standard referring to dimensions of rectangular ducts. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bou
15、nd to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, S
16、witzerland and United Kingdom. EN 1506:2007 (E) 4 The position of this standard in the field of mechanical building services is shown in Figure 1. Mechanical Building Services Control systems Ventilation and air conditioning Heating systems systems Air handling units Ductwork Installation Circular s
17、heet metal ducts Dimensions Circular sheet metal ducts Strength and leakage Rectangular sheet metal ducts Strength and leakage Hangers and supports Rectangular sheet metal ducts. Dimensions Measurement of duct surface area Requirements for ductwork components to facilitate maintenance Flanges Identi
18、fication Flexible ducts Determination of mechanical energy loss Ductwork made of insulation ductboards Figure 1 Position of EN 1506 in the field of mechanical building servicesIntroduction EN 1506:2007 (E) 5 Introduction This revised standard has been prepared by CEN/TC 156 to specify standardized d
19、imensions and tolerances for ducts and duct fittings with circular cross-section, used in ventilation systems. Dimensions and tolerances for straight ducts given in this standard are in accordance with ISO 7807: 19833 concerning recommended sizes. It is intended that the additional sizes (A) which a
20、re in use in some countries will be phased out and may be removed from a future edition of the standard. The dimensions given for duct fittings are based on document EUROVENT 2/4 4. EN 1506:2007 (E) 6 1 Scope This European Standard specifies dimensions of ducts and duct fittings with circular cross-
21、 section. It applies to ductwork used in ventilating and air conditioning systems in buildings, subject to human occupancy. The wall thickness of ducts and fittings is not specified in this standard; strength and leakage are dealt with in EN 12237 2. The corresponding standard for rectangular ducts
22、is EN 1505 1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12792:200
23、3, Ventilation for buildings - Symbols, terminology and graphical symbols 3 Terms, definitions and symbols For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply. 3.1 nominal size (d, d1, d2, d3and d4) reference dimension used for designation, cal
24、culation and application of ducts and fittings d denotes the inner diameter of ducts and female ends. d1, d2, d3and d4denote the outer diameters of male ends of fittings. 3.2 effective length of a fitting (l, l1, and l3) length by which a fitting contributes to the overall length of the air distribu
25、tion system 3.3 effective length of a straight duct (L) length by which a straight duct contributes to the overall length of the air distribution system 3.4 overlap (insertion) length (lp) length by which a fitting overlaps the duct EN 1506:2007 (E) 7 3.5 cross-sectional area (Ac) for ducts with cir
26、cular cross-section the cross-sectional area Acis equal to Ac= d423.6 straight duct surface area (Ai) product of the internal perimeter and the duct length For ducts with circular cross-section the duct surface area per metre length is Ai= d 3.7 Deviation, tolerance, clearance (see Figure 10) 3.7.1
27、upper deviation algebraic difference between the maximum limit of size and the corresponding nominal size 3.7.2 lower deviation algebraic difference between the minimum limit of size and the corresponding nominal size 3.7.3 tolerance difference between the upper deviation and the lower deviation. Th
28、e tolerance is an absolute value without sign 3.7.4 clearance positive difference between the sizes of a female connector or duct and of a male connector 4 Dimensions and values for ducts The nominal diameter d, cross-sectional area Acand duct surface area Aiare given in Table 1. The nominal diamete
29、rs also apply to fittings. Tolerances, deviations and clearances are given in Clause 6. EN 1506:2007 (E) 8 Table 1 Ducts with circular cross-section: dimensions Nominal diameter, d mm Cross-sectional area, Ac m2Duct surface area, Ai m2/m Recommended sizes 63 3,12 10-30,197 80 5,03 10-30,251 100 7,85
30、 10-30,314 125 12,3 10-30,393 160 20,1 10-30,502 200 31,4 10-30,628 250 49,1 10-30,785 315 77,9 10-30,990 400 0,126 1,26 500 0,19 1,57 630 0,312 1,98 800 0,503 2,51 1000 0,785 3,14 1250 1,23 3,93 Additional sizes 150 17,7 10-30,471 300 70,7 10-30,943 355 98,9 10-31,11 450 0,159 1,41 560 0,246 1,76 7
31、10 0,39 2,23 900 0,636 2,83 1120 0,985 3,52 NOTE Recommended sizes correspond to the sizes stated in ISO 7807. 5 Dimensions for fittings 5.1 General The nominal diameters are given in Table 1. NOTE Pressed fittings are available in various forms and are normally limited to diameters not exceeding 31
32、5 mm. 5.2 Joints The overlap length of overlapping joints is given in Table 2. EN 1506:2007 (E) 9 Table 2 Overlap length Nominal diameter in mm 63 to 315 315 to 800 800 to 1250 lpin mm 25 50 100 For butt joints (see Figure A.3d) the diameters of the ducts to be connected at the joints are equal. 5.3
33、 Bends 5.3.1 General The radius of bends rmfor different nominal sizes is given in Table 3. Table 3 Radius of bends diin mm rmin mm 100 100 100 d1The effective length is given by the formula:l = rm. tan (/2) Bends with 15 and 30 angle are also available. 5.3.2 Pressed bends Examples of pressed bends
34、 are shown in Figure 2. Key a) 90 bend, l = rmb) 45 bend, l = 0,41 rm c) 30 bend, l = 0,27 rmFigure 2 Dimensions for pressed bends EN 1506:2007 (E) 10 5.3.3 Segmented bends Examples of segmented bends are shown in Figure 3. Key a) 90 bend, l = rmb) 45 bend, l = 0,41 rm c) 30 bend, l = 0,27 rmminimum
35、 3 segments minimum 2 segments minimum 2 segments Figure 3 Dimensions for segmented bends 5.4 Branches and T-pieces 5.4.1 General Dimensions for branches and T-pieces are given in Table 4. Recommended sizes are indicated by an “R” and additional sizes by an “A”. Examples of branches and T-pieces are
36、 shown in Figures 4, 5 and 6. EN 1506:2007 (E) 11 5.4.2 Branches Key a) Pressed formed branch b) Conical branch r 10 m s 0,15 d3l3 0,5 d + r l3 0,5 d + s Figure 4 Examples of branches 5.4.3 T-pieces Key l1 0,5 d3+ r l3 0,5 d1+ r r 10 mm Figure 5 Example of T-piece with concentric pressed formed bran
37、ch EN 1506:2007 (E) 12 Key a) Concentric branch b) Tangential branch l1 0,5 d3+ s l3 0,5 d1+ s s 0,15 d3Figure 6 Examples of T-pieces with conical branch Table 4 Dimensions for branches and T-pieces d363 80 100 125 150 160 200 250 300 315 355 400 450 500 560 630 710 800 900 1000 1120 1250 d,d1mm 80
38、R R - - - - - - - - - - - - - - - - - - - 100 R R R - - - - - - - - - - - - - - - - - - 125 - R R R - - - - - - - - - - - - - - - - - 150 - A A A A - - - - - - - - - - - - - - - - - 160 - R R R A R - - - - - - - - - - - - - - - - 200 - R R R A R R - - - - - - - - - - - - - - - 250 - R R R A R R R -
39、- - - - - - - - - - - - - 300 - - A A A A A A A - - - - - - - - - - - - - 315 - - R R A R R R A R - - - - - - - - - - - - 355 - - - - - A A A A A A - - - - - - - - - - - 400 - - - - - R R R A R A R - - - - - - - - - - 450 - - - - - - A A A A A A A - - - - - - - - - 500 - - - - - - R R A R A R A R -
40、- - - - - - - 560 - - - - - - - A A A A A A A A - - - - - - - 630 - - - - - - - R A R A R A R A R - - - - - - 710 - - - - - - - - - A A A A A A A A - - - - - 800 - - - - - - - - - R A R A R A R A R - - - - 900 - - - - - - - - - - - A A A A A A A A - - - 1000 - - - - - - - - - - - R A R A R A R A R -
41、 - 1120 - - - - - - - - - - - - - A A A A A A A A - 1250 - - - - - - - - - - - - - R A R A R A R A R R - Recommended sizes A - Additional sizes. EN 1506:2007 (E) 13 5.4.4 Special pieces Examples of special pieces are shown in Figure 7. Key a) T-piece with 45 branch b) Cross (X-piece) Figure 7 Specia
42、l pieces 5.4.5 Transformation pieces Dimensions for transformation pieces are given in Table 5. Recommended sizes are indicated by an “R” and additional sizes by an “A”. Examples of transformation pieces with two male ends are shown in Figure 8. Transformation pieces with female ends and combination
43、s of male and female ends are also available. Key a) Concentric b) Eccentric l = (d1- d2)/2 tan (/2) l = (d1- d2)/tan For diameters up to and including 315 mm, transformation pieces are normally pressed. In these cases may be increased to a maximum of 90. Figure 8 Examples of tapered concentric and
44、eccentric transformation pieces EN 1506:2007 (E) 14 Table 5 Dimensions for transformation pieces d3m d1mm 63 80 100 125 150 160 200 250 300 315 355 400 450 500 560 630 710 800 900 1000 1120 1250 80 R - - - - - - - - - - - - - - - - - - - - - 100 R R - - - - - - - - - - - - - - - - - - - - 125 R R R
45、- - - - - - - - - - - - - - - - - - - 150 - A A A - - - - - - - - - - - - - - - - - - 160 - R R R A - - - - - - - - - - - - - - - - - 200 - - R R A R - - - - - - - - - - - - - - - - 250 - - - R A R R - - - - - - - - - - - - - - - 300 - - - - A A A A - - - - - - - - - - - - - - 315 - - - - - R R R -
46、- - - - - - - - - - - - - 355 - - - - - - A A A A - - - - - - - - - - - - 400 - - - - - - - R A R A - - - - - - - - - - - 450 - - - - - - - - A A A A - - - - - - - - - - 500 - - - - - - - - - - A R A - - - - - - - - - 560 - - - - - - - - - - - A A A - - - - - - - - 630 - - - - - - - - - - - - A R A
47、- - - - - - - 710 - - - - - - - - - - - - - A A A - - - - - - 800 - - - - - - - - - - - - - - A R A - - - - - 900 - - - - - - - - - - - - - - - A A A - - - - 1000 - - - - - - - - - - - - - - - - R R A - - - 1120 - - - - - - - - - - - - - - - - - A A A - - 1250 - - - - - - - - - - - - - - - - - - A R
48、 - - R - Recommended sizes. A - Additional sizes. 5.4.6 Closures The nominal diameter of the closures is given in Table 1. Examples of closures are shown in Figure 9. Key a) Plug end (for ducts and female ends) b) Cap end (for male ends) Figure 9 Examples of closures EN 1506:2007 (E) 15 6 Tolerances
49、 and clearances 6.1 The manufacturing tolerances and resulting clearances for ducts and fittings (male and female connectors with reference to nominal diameter d, are given in Table 6. Table 6 Ducts and fittings, tolerances and clearances (see also Figure 10) d B C D1D2E F G H Recommended sizes in mm 63 0,7 1,7 0,5 0,5 61,8 62,3 63,0 63,5 80 0,7 1,7 0,5 0,5 78,8 79,3 80,
