BS 3974 Pipe Supports. Section 4

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Maximilian Stafford
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1 BS 3974 Pipe Supports Section 4

2 Section 4 of this catalogue has been compiled with the kind permission of the British Standard Institution. All data has been taken from BS 3974 Part 1 (1974), Part 2 (1978) and Part 3 (1980). Q.P.S. reserve the right to alter specifications in line with any updates by the relevant British Standards. Schedule of materials Material reference Component Material BS no. Designation (a) Pipe clips Clips Range A Carbon steel 4360 Grade 43A Range B 1501: Part or 161: grade 430B Range D1, D1(M), D2 Alloy steel 1501: Part grade 27B Range D3, D3(M) 1501: Part grade 515B All bolts and Range A, B Carbon steel 4190 Grade 4, 6 studbolts Range D1, D1(M), D2 Alloy steel grade B16 Range D3, D3(M) % Cr Mo V boron grade B16A All nuts Range A, B Carbon steel 4190 Grade 4 Range D1, D1(M), D2 Alloy steel grade 4 Range D3, D3(M) grade 7 Distance-pieces All ranges Carbon steel 1387 Medium or heavy (b) U-straps Strap Range D1, D2 Alloy steel 1501: Part grade 27B Range D3 1501: Part grade 515B Steady plate Range D1, D2, D3 Alloy steel 1501: Part grade 27A or 27B Yoke, end and Ranges D1, D2, D3 Carbon steel 4360 Grade 43A hanger plates All bolts Ranges D1, D2, D3 Carbon steel 3692 Grade 8.8 All nuts 3692 Grade 8 (c) Riser Clamps Clamp Range A Carbon steel 4360 Grade 43A Range B, C 1501: Part or 161: grade 430B Clamp Range D1, D2 Alloy steel 1501: Part grade 27B and gusset Range D3 1501: Part grade 515B All bolts Range A, B Carbon steel 4190 Grade 4.6 Range C 3692 Grade 8.8 Range D1, D2 Alloy steel grade B16 Range D % Cr Mo V boron grade 816A All nuts Range A, B Carbon steel grade 4 Range C 3692 Grade 8 Range D1, D2 Alloy steel grade 4 Range D grade 7 Distance-pieces Range A, B Carbon steel 1387 Medium or heavy Range C Alloy steel 1775 HFS13 or HFW13 Range D1, D2 Carbon steel 1387 Medium or heavy Range D3 Alloy steel (d) Sling rods All components Rods All ranges Carbon steel 4360 Grade 43A Nuts All ranges 4190 Grade 4 or 6 (e) Pipe overstraps Carbon steel 4360 Grade 43A and bolts Low temperature see table 12 steel in section three (f) Pipe overstraps Copper alloy 2870 CZ 110 and hookstraps Stainless steel 1449: Part 2 17% min. Cr content (g) Lining Lead sheet 1178 materials for steel pipe clips Copper/copper 2870 CZ 110 when used on alloy sheet copper/copper alloy tubes Compressed fibre Page 81

3 INDEX DESCRIPTION FIGURE No. PAGE 2 Bolt Pipe Clamp 3 Bolt Pipe Clamp 4 Bolt Riser Clamp 6 Bolt Riser Clamp 10 Bolt Riser Clamp (Boiler Plate) 10 Bolt Riser Clamp (Alloy Steel) U Bolt (Non Grip) U Bolt (Grip) Overstrap Beam Welding Attachments Overstraps Dee Shackle 1 Piece Pipe Strap U Strap Spring Cage Spring Cage Sling Rod Cage Hookbolt (To Grip) Overstrap Hookstrap Universal Beam Clip 51L/51H 57L/57H/58L/58H/ /65/66 67/68 69/ /74/ , OS 100 HS , Page 82

4 INDEX FIG.No. DESCRIPTION??????? INDEX Page No. PICTORIAL FIG.No. DESCRIPTION Page No. PICTORIAL 51L 51H 2 BOLT PIPE CLAMP DEE SHACKLE 99 57L 57H 58L 58H 59 3 BOLT PIPE CLAMP 86, PIECE PIPE STRAP BOLT RISER CLAMP U STRAP BOLT RISER CLAMP SPRING CAGE BOLT RISER CLAMP (Boiler Plate) SPRING CAGE BOLT RISER CLAMP (Alloy Steel) 90, SLING ROD CAGE U BOLTS NOT TO GRIP SLING ROD CAGE U BOLTS TO GRIP HOOKBOLT To Grip OS OVER STRAP 94, 95, HS HOOKSTRAP BEAM WELDING ATTACHMENT UNIVERSAL BEAM CLIP 100 Page 83

5 FIG. 67/68 U-BOLT NOT TO GRIP Nominal pipe size FIG. 68 Cast Iron Pipes Nom pipe Pipe A N M K S Size O.D. Dia Max * * * * * *These U-bolts are identical with the equivalent sizes for steel pipe. FIG. 69/70 U-BOLT TO GRIP Dimensions of U-Bolts (not to grip pipe) All dimensions are in millimetres FIG. 67 Steel Pipes Nom pipe Pipe A N M K S Size O.D. Dia Max Figure No Nominal Pipe Size Dimensions of U-Bolts (to grip pipe) All dimensions are in millimetres FIG. 70 Cast Iron Pipes Nom pipe Pipe A N M K S Size O/D Dia Max * * * * * *These U-bolts are identical with the equivalent sizes for steel pipe. FIG. 69 Steel Pipes Nom pipe Pipe A N M K S Size O/D Dia Max Page 84

6 FIG. 51 & 51H 2 BOLT PIPE CLAMP Pipe clip for steel, cast iron and copper/copper alloy pipes (range A: -20ºC to 100ºC) Fig. 51 Dimensions of pipe clamps for steel pipes (RANGE A: -20ºC to 100ºC) Nominal pipe size Pipe Size Light Series FIG 51L Heav y Series FIG 51H Sling Clamp Clamp and load Safe Sling Clamp Clamp and load Safe Nom Outside Rod D Dimensions bolts G Working Rod D Dimensions bolts G Working Size Dia Dia Dia B x T P Bolt HHole dia Min load Dia Dia B x T P Bolt Hole dia Min Load mm mm mm mm mm mm mm mm kg mm mm mm mm mm mm kg x 5 65 M x 5 70 M USE HEAVY SERIES x 5 75 M x 5 90 M x 5 95 M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M Page 85

7 FIGS. 57/58/59 3 BOLT PIPE CLAMP FIG. 57 Dimensions of pipe clamps for steel pipes, Range B: -20ºC to 400ºC Pipe Size Light Series Heav y Series Sling Clamp Clamp and load Safe Sling Clamp Clamp and load Safe Nom Outside Rod D Dimensions Bolts G Working Rod D Dimensions Bolts G Working Size Dia Dia Dia B x T P Q Bolt Hole Ø Min Load Dia Dia B x T P Q Bolt Hole Ø Min Load mm mm mm mm mm mm mm mm mm kg mm mm mm mm mm mm mm kg x M x M USE HEAVY SERIES x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M Nominal pipe size Page 86

8 FIG. 58 Dimensions of pipe clamps for steel pipes, Range C:400ºC to 470ºC Pipe Size Light Series Heav y Series Sling Clamp Clamp and load Safe Sling Clamp Clamp and load Safe Nom Outside Rod D Dimensions Bolts G Working Rod D Dimensions Bolts G Working Size Dia Dia Dia B x T P Q Bolt Hole Ø Min Load Dia Dia B x T P Q Bolt Hole Ø Min Load mm mm mm mm mm mm mm mm mm kg mm mm mm mm mm mm mm kg USE HEAVY SERIES x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M FIG. 59 Dimensions of alloy steel pipe clamps for steel pipes. (range D: 20ºC to 570ºC) All dimensions are in millimetres Pipe Clamp Dimensions* Clamp and load bolts G Nominal Outside Sling D B x T P Q Bolt Bolt Min Size Dia Rod Diameter Sub Ranges Size Hole Diameter Safe Working Load Dia D1 D2&D3 D1 and D2 D x 6 55x M x 6 55x M x 6 55x M x 6 55x M x 10 60x M x 10 60x M x 10 60x M x 10 60x M x 10 70x M x 12 80x M x 12 80x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M x x M Nominal pipe size *Range D1 gives dimensions for pipe clamps using BS1501 : 620 grade 27B (1% Cr, ½% Mo) material for use for maximum temperature of 510ºC. Ranges D2 and D3 give respectively, dimensions for pipe clips using BS 1501 : 620 grade 27B (1% Cr, ½% Mo) material for use for maximum temperature of 540ºC and BS 1501 : 622 grade 31B ( 2¼% Cr, 1 % Mo) Material for use up to 570ºC Page 87

9 FIG BOLT RISER CLAMP Range Nominal pipe size FIG. 61 Dimensions of riser clamps for pipes up to and including 300mm nominal size (Ranges A and B)* Pipe Sling W x T A B C Tubular Bolt Bolt Nominal Outside Rod Distance Piece Size Hole Size Diameter Diameter Nominal Length Diameter Size J K L K L x M12 M x M12 M x M20 M x M20 M x M20 M x M20 M x M20 M x M24 M *Range A: -20ºC to 100ºC Range B: -20ºC to 400ºC FIG. 61 Maximum loads for riser clamps Pipe Min Max Increment ov er min. H Nominal H load at Size min, H kg Max imum Load in (kg) Page 88

10 FIG BOLT RISER CLAMP FIG. 62 Dimensions of riser clamps for pipes over 300mm nominal size (ranges A and B)* Pipe Sling W X T A B C Tubular Bolt Bolt Bolt Nominal Outside Rod Distance Piece Size Hole Hole Size Diameter Diameter Nominal Length Diameter Centres Size P J K L K L G x M24 M x M24 M x M30 M x M30 M x M30 M x M30 M *Range A: -20ºC to 100ºC Range B: -20ºC to 400ºC FIG. 62 Maximum loads for riser clamps Pipe Min Max Increment ov er Min H Nominal H Load Size kg Max imum loads in (kg) Page 89

11 FIG. 64,65,66 10 BOLT RISER CLAMP Nominal pipe size FIG. 64 Dimensions of riser clamps for steel pipes (Range D1: -20ºC to 510ºC) All dimensions are in millimetres Pipe Sling Clamp Load Bolt Clamp Bolt Gusset Plate Safe Nominal Outside Rod W x T A B*Min Bolt Bolt D E F Bolt Bolt H J K L M N Working Size Diameter Diameter Size Hole Size Hole Load C Diameter G Diameter kg x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M Page 90

12 FIG. 65 Dimensions of riser clamps for steel pipes (Range D2: 510ºC to 540ºC) All dimensions are in millimetres Pipe Sling Clamp Load Bolt Clamp Bolt Gusset Plate Safe Nominal Outside rod W x T A B*Min Bolt Bolt D E F Bolt Bolt H J K L M N w orking Size Diameter Diameter Size hole Size hole load C Diameter G Diameter kg x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M FIG. 66 Dimensions of riser clamps for steel pipes (Range D3: 540ºC to 570ºC) All dimensions are in millimetres Pipe Sling Clamp Load Bolt Clamp Bolt Gusset Plate Safe Nominal Outside rod W x T A B*Min Bolt Bolt D E F Bolt Bolt H J K L M N w orking Size Diameter Diameter Size hole size hole load C Diameter G Diameter kg x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M x M M Nominal pipe size Page 91

13 FIG BOLT RISER CLAMP (Boiler Plate) Nominal Pipe Size FIG. 63 Dimensions of riser clamps for pipes up to and including 600mm nominal size (Range C: Over 400ºC to 470ºC) Pipe Sling Riser Clamp Tubular Bolt Bolt Gusset Plate Safe Nominal Outside Rod W X T A B C D F G H Distance Piece Size Hole Q R S U V Working Size Diameter Diameter Nominal Length Diameter Load Size P J K L K L kg X M20 M X M20 M X M20 M X M30 M X M30 M X M36 M X M30 M X M36 M X M30 M X M36 M X M30 M X M36 M X M30 M X M36 M X M30 M X M36 M Page 92

14 FIG. 93 U-STRAP Nominal Pipe Size FIG.93 Dimensions of alloy steel U-Straps for steel pipes (Range D:-20ºC to 570ºC) All dimensions are in millimetres. Pipe Sling U-Plate Yoke Safe Working Nominal Outside Rod Sub-Ranges Hanger Plate End Plate Load Size Diameter Diameter D1 D2&D3 A B C D E F G H K L x M x T2 D1 and D3 W x T1 W x T1 D2 kg kg x x x 152x x x x 152x x x x 152x x x x 152x x x x 152x x x x 152x x x x x x x x 152x x 152x x 161x x x x x x x x 152x x 152x x 161x x x x x x 161x x 161x x x x x x 161x x 161x NOTE 1. This support is suitable only for nominally horizontal sections of pipe lines. When using this type of support consideration shall be given to problems related to possible in-service damage to the pipe thermal insulation in the vicinity of the support. NOTE 2. Range D1 gives dimensions for pipe clips using BS 1501: 620 grade 27B (1% Cr, ½% Mo) material for use for maximum temperature of 510ºC. Ranges D2 and D3 give respectively, dimensions for pipe clips using BS 1501 : 620 grade 27B (1% Cr, ½% Mo) material for use for maximum temperature of 540ºC and BS 1501: 622 grade 31B (2¼ % Cr, 1% Mo) material for use up to 570ºC. NOTE 3. Asbestos free tape or millboard may be placed between the pipe and the U-Strap. In such cases, the dimensions of the U-Strap shall be adjusted to ensure that it does not tighten on to the pipe. Page 93

15 FIG 71 OVERSTRAP All dimensions in millimetres Nominal Pipe Size Nom Steel Pipe Pipe Size Hole Bolt Size O/D A B Wx T C R E Dia x x x x x x x x x x x x x FIG. 72 BEAM WELDING ATTACHMENT Size 1. Beam welding attachments Two types of beam welding attachments are specified: Type 1: Inverted U-shape attachment Type 2: U shaped attachment 2. Interchangeability. These attachments are interchangeable if supplied with all three holes drilled, as given in table 2. Sling Material Hole Bolt or Safe Rod size A C D Dia rod Working Dia Bx T E Dia Load kg 8 50x x x x x x Page 94

16 FIG. 99 HOOK BOLT (TO GRIP) Nominal Pipe Size Complete with 2 Nuts *These Hook bolts are identical with the U bolt equivalent sizes for steel pipe. Fig. 99 Cast iron pipes nom pipe size Nom Pipe Pipe A N M K S Size O/D Dia Max * * * * * HOOK BOLT (TO GRIP) Fig. 99 Steel pipes nom pipe size Nom Pipe Pipe A N M K S Size O/D Dia Max FIG. 100 OS OVERSTRAP FOR STEEL & COPPER/COPPER ALLOY PIPES for steel pipe Copper for copper pipe Nominal Pipe Size Material Copper/copper alloy tube O/D Steel tube nom. bore FIG. 100 HS HOOKSTRAP FOR STEEL & COPPER/COPPER ALLOY PIPES Tube Outside A B Strap C R Hole Bolt Diameter size diameter Size Copper/ Wx T E copper Steel alloy x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M12 Page 95

17 FIG. 73, 74 & 75 STEEL OVERSTRAPS FOR STEEL, CAST IRON & COPPER/COPPER ALLOY PIPES FIG. 73 Steel Overstraps for steel pipes N/B FIG. 74 Steel overstraps for cast iron pipes N/B Pipe A B Strap C R Hole Bolt Pipe A B Strap C R Hole Bolt size Dia size Dia Nominal Wx T E Pitch Nominal Wx T E Pitch Pipe O/D Size No. P Pipe O/D Size No. P Size x M Size x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M FIG. 75 Steel overstraps for copper/copper alloy tubes Outside Diameter Tube Strap Hole Bolt Outside A B size C R E Size No. Pitch Liner Dia Wx T P Thickness x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M x M Nominal Pipe Size Material Page 96

18 FIG. 95 SPRING CAGE NOTE 1. B is the width of section given in BS 4 : Part 1 NOTE 2. X = T + D where T is the flange thickness given in BS 4: Part 2 Size Beam flange width B Beam flange thickness X Rod dia D Depth of cage FIG. 95 Dimensions of spring cage, type U: universal beam Sling Width W for flat T Thickness Hole Size Bolt Bolt C E Safe Rod and cleats Of flats Dia of Angle Size Hole w orking Dia Spring Inside Dia F D Dia load 45 to T1 T2 kg Ax 30x 5 M Ax 40x 6 M Ax 50x 8 M Ax 65x 8 M Ax 75x 8 M Ax 100x 12 M Ax 100x 12 M Ax 125x 12 M Ax 150x 15 M FIG. 96 SPRING CAGE Size Beam flange width B Beam flange thickness X Rod dia D Depth of cage FIG. 96 Dimensions of spring cage, type R: rolled steel joist Sling Width W for flat T Thickness of flats T3 Hole Bolt Bolt Tubular Cleat Safe Rod and cleats T1 and T2 Dia Size Hole distance L M X Z Working Dia Spring Inside Dia Spring Inside Dia F D Dia piece. Load 45 to to Nom.Size kg M M M M M M M M M Page 97

19 FIG. 97 SLING ROD CAGE NOTE 1. B is the width of section given in BS 4 : Part 1 NOTE 2. X = T + D where T is the flange thickness given in BS 4 : Part 1 2 Size Beam flange width B Beam flange thickness X Rod dia D Depth of cage FIG. 97 Dimensions of sling rod cage, type U: universal beam Sling Width Thickness Size Dimensions Hole Bolt Bolt Safe Rod for flat of flats of angle Diameter Size hole w orking Dia T1 F D Dia load T1 T2 C E H Y kg Ax 30x M Ax 40x M Ax 50x M Ax 65x M Ax 75x M Ax 100x M Ax 100x M Ax 125x M Ax 150x M FIG. 98 SLING ROD CAGE Size Beam flange width B Beam flange thickness X Rod dia D Depth of cage FIG. 98 Dimensions of sling rod cage, type R: rolled steel joist Sling Width Thickness H Y Hole Bolt Bolt Tubular Cleat Safe Rod for flat of flats Dia Size Hole distance Working Dia T1 and F D Dia piece Load cleat T1 T2 T3 Nominal Size L M X Z kg M M M M M M M M M Page 98

20 FIG. 79 DEE SHACKLE FIG. 79 Dimensions of Dee shackles Associated Safe d D W S e P Q n Sling Rod Working Dia Load kg M M M M M M M M M36 Sling rod diameter NOTE: The safe working load specified is based upon the safe working load of associated sling rods. The actual safe working loads for shackles complying with BS 3032 are higher than those given in the table. FIG. 92 ONE PIECE STRAP, Range A: -20ºC to 100ºC FIG. 92 Dimensions of one piece strap (with screwed machined, forged and hot formed eye) for uninsulated steel pipe. Nominal Sling Load Safe Pipe Pipe Rod C or A R B T G H Bolt Load Working Size O/D Dia Hole Bolt Load mm mm mm mm mm mm mm mm mm mm mm kg See fig M M8 70 3FR, 3BR M8 70 & 3ER M8 70 Sling rod diameter Page 99

21 Page 100 BS 3974 PIPE SUPPORTS FIG. 101 UNIVERSAL BEAM CLAP Maximum loads W for beam clips for universal beam application. Length L Rolled steel angle size 70 x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x x 70 x x 80 x x 90 x 12 Bolt Size c Length B Max imum load W (kg) M M M M M M M M M M M M M M M M M M M M M Note: The load given above refers to the load taken by each individual beam clip 188 Dimensions of clips for universal beams. Beam Beam Beam clip dimensions Depth x w idthmass B C length kg/m 914x x x x x x x x x Beam clip dimensions Depth x w idthmass B C length kg/m x x x x x x x x x x x

Ancillary Equipment FIG. 222 FIG. 283 FIG /10 ADJUSTABLE PIPE SUPPORT U BOLT (NON GRIPPED) U BOLT (GRIPPED) Material - Carbon Steel.

Ancillary Equipment FIG. 222 FIG. 283 FIG /10 ADJUSTABLE PIPE SUPPORT U BOLT (NON GRIPPED) U BOLT (GRIPPED) Material - Carbon Steel. 78 FIG. 222 FIG. 283 FIG. 1 04/ U BOLT (GRIPPED) Nom A C D T L Load 15 21.3 7 28 6 25 37 220 20 26.9 33 6 25 40 220 25 33.7 40 6 25 43 220 32 42.4 53 35 49 545 40 48.3 16 60 35 56 545 50 60.3 16 71 35