GALVANISED MALLEABLE IRON FITTINGS · 2018. 11. 15. · Diamètre nominal selon ISO 6708 Fabriqué pour tube DIN 2440 & DIN 2448 Manufactured under norm UNE EN 10242 Union threads

13RACCORDS FONTE GALVANISÉSGALVANISED MALLEABLE IRON FITTINGS

APPLICATIONS

CARACTÉRISTIQUES / CHARACTERISTICS

NORMES / NORMS

Pour eau chaude et froide, huile, air, gaz et vapeurPour eau potable selon norme EN 10204:1994

For hot and cold water, oil, air, gas and steam For potable water according to norm EN 10204:1994

Fonte malléable cœur noir grade GJMB-350-10Galvanisation épaisseur minimum : 70µmPureté du zinc en masse : 98.05%Résistance à la traction : 350N/mm²

Black heart malleable cast iron grade GJMB-350-10Minimum galvanization thickness: 70µmPurity of zinc in mass: 98.05%Minimum Tensile strength: 350 N/mm2

Fabriqué suivant UNE EN 10242Filetage des unions selon ISO 7-1 (DIN 2999 / BS 21)Dimensions selon ISO 49 & DIN 2950Diamètre nominal selon ISO 6708Fabriqué pour tube DIN 2440 & DIN 2448

Manufactured under norm UNE EN 10242Union threads according to ISO 7-1 (DIN 2999 / BS 21)Dimensions according to ISO 49 & DIN 2950Nominal DN size according to ISO 6708Manufactured for pipe DIN 2440 & DIN 2448

13RACCORDS FONTE GALVANISÉSGALVANISED MALLEABLE IRON FITTINGS

RACCORDS FONTE GALVANISÉS I GALVANISED MALLEABLE IRON FITTINGS

149 www.valbrime.com

001

DIMENSIONS

COURBE 90° À GRAND RAYON M/FLONG SWEEP BEND 90° M/F

CODE Ø A C D K PN

001010 3/8" 36 10 25 11 25 10 250

001015 1/2" 45 13 29 15 25 10 180

001020 3/4" 50 15 35.8 16 25 10 100

001025 1" 63 17 43 19 25 10 40

001032 11/4" 76 19 52.5 21 25 5 20

001040 11/2" 85 19 59 21 25 5 20

001050 2" 102 24 72.5 25 25 5 10

001065 21/2" 115 27 90 30 25 1 5

001080 3" 137 30 130.5 33 25 1 4

001100 4" 167 36 133 40 25 1 1

002

DIMENSIONS

COURBE 90° À GRAND RAYON F/FLONG SWEEP BEND 90° F/F

CODE Ø A C D PN

002010 3/8" 48 10 25 25 10 250

002015 1/2" 55 13 29 25 10 150

002020 3/4" 69 15 35.8 25 10 80

002025 1" 85 17 43 25 10 40

002032 11/4" 105 19 52.5 25 5 20

002040 11/2" 116 19 59 25 5 15

002050 2" 140 24 72.5 25 5 10

002065 21/2" 176 27 89 25 1 5

002080 3" 205 30 103.5 25 1 2

002100 4" 260 36 130.5 25 1 1

003

DIMENSIONS

COURBE 90° À GRAND RAYON M/MLONG SWEEP BEND 90° M/M

CODE Ø A K PN

003015 1/2" 48 13 25 10 300

003020 3/4" 60 15 25 10 150

003025 1" 75 17 25 10 60

003032 11/4" 95 19 25 5 40

003040 11/2" 105 19 25 5 25

003050 2" 130 24 25 5 10

040

DIMENSIONS

COURBE 45° À GRAND RAYON M/FLONG SWEEP BEND 45° M/F

CODE Ø A A1 C D K PN

040010 3/8" 30 24 10 25 11 25 10 300

040015 1/2" 36 30 13 29 15 25 10 200

040020 3/4" 43 36 15 35.8 16 25 10 120

040025 1" 51 42 17 43 19 25 10 50

040032 11/4" 64 54 19 52.5 21 25 5 40

040040 11/2" 68 58 19 59 21 25 5 30

040050 2" 81 70 24 72.5 25 25 5 15

040065 21/2" 99 86 27 89 30 25 1 10

040080 3" 113 100 30 103.5 33 25 1 5

040100 4" 142 126 36 130.5 39 25 1 2



041

DIMENSIONS

COURBE 45° F/FBEND 45° F/F

CODE Ø A C D PN

041015 1/2" 36 13 29 25 10 200

041020 3/4" 43 15 35.8 25 10 120

041025 1" 51 17 43 25 10 50

041032 11/4" 64 19 52.5 25 5 40

041040 11/2" 68 19 59 25 5 30

041050 2" 81 24 71.5 25 5 15

041065 21/2" 99 27 89 25 1 9

041080 3" 113 30 103.5 25 1 5

041100 4" 142 36 130.5 25 1 2

085

DIMENSIONS

PASSAGE PONT F/FCROSSOVERS F/F

CODE Ø A D K PN

085015 1/2" 46 29 13 25 10 100

085020 3/4" 56 35.8 15 25 10 60

085025 1" 70 43 17 25 10 30

090

DIMENSIONS

COUDE 90° F/F90° ELBOW F/F

CODE Ø A D K PN

090008 1/4" 21 20 10 25 10 400

090010 3/8" 25 25 10 25 10 250

090015 1/2" 28 29 13 25 10 250

090020 3/4" 33 35 15 25 10 140

090025 1" 38 43 17 25 10 80

090032 11/4" 45 52.5 19 25 5 40

090040 11/2" 50 59 19 25 5 30

090050 2" 58 72.5 24 25 5 20

090065 21/2" 69 89 27 25 1 8

090080 3" 78 103.5 30 25 1 6

090100 4" 96 130.5 36 25 1 3

090R

DIMENSIONS

COUDE 90° RÉDUIT F/F90° REDUCING ELBOW F/F

CODE Ø A1 A2 D1 D2 PN

09001510 1/2" 26 26 29 25 25 10 300

09002015 3/4"x1/2" 30 31 35 29 25 10 160

09002515 1"x1/2" 32 34 43 29 25 10 110

09002520 1"x3/4" 35 36 43 35.8 25 10 100

09003215 11/4"x1/2" 35 38 52.5 29 25 5 80

09003220 11/4"x3/4" 36 41 52.5 35.8 25 5 70

09003225 11/4"x1" 40 42 52.5 43 25 5 60

09004015 11/2"x1/2" 36 42 60 29.6 25 5 60

09004020 11/2"x3/4" 42 46 59 35.8 25 5 60

09004025 11/2"x1" 42 46 59 43 25 5 40

09004032 11/2"x11/4" 46 48 60 53 25 5 40

09005015 2"x1/2" 38 48 73 29.6 25 5 40

09005020 2"x3/4" 40 50 72.5 35.8 25 5 40

09005025 2"x1" 44 52 72.5 43 25 5 30

09005032 2"x11/4" 48 53 72.5 52.5 25 5 30

09005040 2"x11/2" 52 55 73 60 25 5 30

09006540 21/2"x11/2" 55 63 89 59 25 1 20

09006550 21/2"x2" 61 66 89 72.5 25 1 20

09008050 3"x2" 73 78 105 73 25 1 10

09008065 3"x21/2" 72 76 103.5 89 25 1 10



092

DIMENSIONS

COUDE 90° M/F90° ELBOW M/F

CODE Ø A A1 D K K1 PN

092008 1/4" 21 28 20 10 7.5 25 10 700

092010 3/8" 25 32 25 10 11 25 10 500

092015 1/2" 28 37 29 13 15 25 10 250

092020 3/4" 33 43 35.8 15 16 25 10 140

092025 1" 38 52 43 17 19 25 10 80

092032 11/4" 45 60 52.5 19 21 25 5 55

092040 11/2" 50 65 59 19 21 25 5 30

092050 2" 58 74 72.5 24 25 25 5 16

092065 21/2" 69 88 89 27 30 25 1 12

092080 3" 78 98 103.5 30 33 25 1 8

092100 4" 96 118 130.5 36 39 25 1 4

096

DIMENSIONS

COUDE UNION À JOINT CONIQUE F/FUNION ELBOW F/F WITH CONICAL SEAT

CODE Ø A B C K PN

096010 3/8" 23 53 17 11 25 10 120

096015 1/2" 28 58 18 13 25 10 100

096020 3/4" 33 62 20 15 25 10 60

096025 1" 38 72 22 17 25 10 40

096032 11/4" 45 82 24 19 25 5 30

096040 11/2" 50 90 25 19 25 5 20

096050 2" 58 100 27 24 25 1 12

098

DIMENSIONS

COUDE UNION À JOINT CONIQUE M/FUNION ELBOW M/F WITH CONICAL SEAT

CODE Ø A B C K PN

098010 3/8" 24 63 17 11 25 10 80

098015 1/2" 28 76 18 13 25 10 80

098020 3/4" 33 82 20 15 25 10 50

098025 1" 38 94 22 17 25 10 30

098032 11/4" 45 107 24 19 25 5 20

098040 11/2" 50 115 25 19 25 5 15

098050 2" 58 128 27 24 25 1 10

098065 21/2" 78 156 30 27 25 1 5

120

DIMENSIONS

COUDE 45° PETIT RAYON F/F45° ELBOW F/F

CODE Ø A D K PN

120015 1/2" 22 29 13 25 10 300

120020 3/4" 25 36 15 25 10 180

120025 1" 28 43 17 25 10 100

120032 11/4" 33 52 19 25 5 50

120040 11/2" 36 59 19 25 5 40

120050 2" 43 72 24 25 5 20

120065 21/2" 49 89 27 25 1 12

120080 3" 55 103 30 25 1 6

120100 4" 66 130 36 25 1 3



130

DIMENSIONS

TÉ 90° F/F/F90° TEE F/F/F

CODE Ø A PN

130008 1/4" 21 25 10 300

130010 3/8" 25 25 10 200

130015 1/2" 28 25 10 150

130020 3/4" 33 25 10 80

130025 1" 38 25 10 50

130032 11/4" 45 25 5 30

130040 11/2" 50 25 5 20

130050 2" 58 25 5 12

130065 21/2" 69 25 1 8

130080 3" 78 25 1 6

130100 4" 96 25 1 3

130R

DIMENSIONS

TÉ RÉDUIT 90° F/F/F90° REDUCING TEE F/F/F

CODE Ø A B PN

13002015 3/4"x1/2" 30 31 25 10 120

13002515 1"x1/2" 32 34 25 10 60

13002520 1"x3/4" 35 36 25 10 60

13003215 11/4"x1/2" 34 38 25 5 40

13003220 11/4"x3/4" 36 41 25 5 40

13003225 11/4"x1" 40 42 25 5 30

13004015 11/2"x1/2" 36 42 25 5 30

13004020 11/2"x3/4" 38 44 25 5 30

13004025 11/2"x1" 42 46 25 5 30

13004032 11/2"x11/4" 46 48 25 5 25

13005015 2"x1/2" 38 48 25 5 20

13005020 2"x3/4" 40 50 25 5 20

13005025 2"x1" 44 52 25 5 20

13005032 2"x11/4" 48 54 25 5 15

13005040 2"x11/2" 52 55 25 5 15

13006520 21/2"x3/4" 49 58 25 1 8

13006525 21/2"x1" 47 60 25 1 8

13006532 21/2"x11/4" 52 62 25 1 8

13006540 21/2"x11/2" 55 63 25 1 8

13006550 21/2"x2" 61 66 25 1 8

13008040 3"x11/2" 58 71 25 1 5

13008050 3"x2" 64 73 25 1 5

13008065 3"x21/2" 72 76 25 1 5

13010050 4"x2" 70 86 25 1 4

13010065 4"x21/2" 78 90 25 1 4

13010080 4x3" 84 92 25 1 4

180

DIMENSIONS

CROIX 90° F90° CROSS F

CODE Ø A PN

180015 1/2" 28 25 10 100

180020 3/4" 33 25 10 70

180025 1" 38 25 10 40

180032 11/4" 45 25 5 20

180040 11/2" 50 25 5 15

180050 2" 58 25 5 10

180065 21/2" 69 25 1 6

180080 3" 78 25 1 5

180100 4" 96 25 1 1



221

DIMENSIONS

COUDE 3 SORTIES F/F/FSIDE-OUTLET ELBOW F

CODE Ø A PN

221015 1/2" 28 25 10 120

221020 3/4" 33 25 10 70

221025 1" 38 25 10 50

221040 11/2" 50 25 5 20

223

DIMENSIONS

COUDE 4 SORTIES F/F/FELBOW WITH 2 LATERALS F

CODE Ø A PN

223015 1/2" 28 25 10 120

223020 3/4" 33 25 10 70

223025 1" 38 25 10 50

270

DIMENSIONS

MANCHON F/FSOCKET F/F

CODE Ø A PN

270008 1/4" 27 25 10 700

270010 3/8" 30 25 10 400

270015 1/2" 36 25 10 340

270020 3/4" 39 25 10 220

270025 1" 45 25 10 120

270032 11/4" 50 25 5 60

270040 11/2" 55 25 5 50

270050 2" 65 25 5 25

270065 21/2" 74 25 1 22

270080 3" 80 25 1 18

270100 4" 94 25 1 6

270L

DIMENSIONS

MANCHON ALLONGÉ F/FSOCKET EXTRA LONG F/F

CODE Ø A B PN

270020L 3/4" 48 32 25 10 120



241

DIMENSIONS

RÉDUCTION M/FREDUCING BUSH M/F

CODE Ø A B S PN

24101008 3/8"x1/4" 12.2 4.1 17.3 25 10 1000

24101508 1/2"x1/4" 14.2 4.8 22.1 25 10 800

24101510 1/2"x3/8" 14.2 4.8 22.1 25 10 800

24102008 3/4"x1/4" 16 5.6 29.2 25 10 480

24102010 3/4"x3/8" 16 5.6 29.2 25 10 480

24102015 3/4"x1/2" 16 5.6 29.2 25 10 480

24102508 1"x1/4" 24 7 35 25 10 260

24102510 1"x3/8" 21 7 35 25 10 260

24102515 1"x1/2" 19.1 6.4 36.1 25 10 260

24102520 1"x3/4" 19.1 6.4 36.1 25 10 260

24103215 11/4"x1/2" 24 8 45 25 5 160

24103220 11/4"x3/4" 20.3 7.1 44.7 25 5 160

24103225 11/4"x1" 20.3 7.1 44.7 25 5 160

24104010 11/2"x3/8" 24 8 49 25 5 120

24104015 11/2"x1/2" 22 9 50 25 5 120

24104020 11/2"x3/4" 22 9 50 25 5 120

24104025 11/2"x1" 21.1 7.9 50.8 25 5 120

24104032 11/2"x11/4" 21.1 7.9 50.8 25 5 120

24105015 2"x1/2" 39 9 64 25 5 60

24105020 2"x3/4" 39 9 64 25 5 60

24105025 2"x1" 26 9 63.2 25 5 60

24105032 2"x11/4" 22.4 8.6 63 25 5 60

24105040 2"x11/2" 22.4 8.6 63 25 5 60

24106515 21/2"x1/2" 29 11 80 25 5 40

24106520 21/2"x3/4" 29 11 80 25 5 40

24106525 21/2"x1" 43 11 79 25 1 40

24106532 21/2"x11/4" 43 11 79 25 1 40

24106540 21/2"x11/2" 29 11 79 25 1 40

24106550 21/2"x2" 29 11 79 25 1 40

24108025 3"x1" 47 12 94 25 1 30

24108032 3"x11/4" 47 12 94 25 1 30

24108040 3"x11/2" 47 12 94 25 1 30

24108050 3"x2" 32 12 94 25 1 30

24108065 3"x21/2" 47 12 94 25 1 30

24110050 4"x2" 55 14 119 25 1 18

24110065 4"x21/2" 55 14 119 25 1 18

24110080 4"x3" 55 14 119 25 1 18

240

DIMENSIONS

MANCHON RÉDUIT F/FREDUCING SOCKET F/F

CODE Ø A PN

24001008 3/8"x1/4" 30 25 10 600

24001508 1/2"x1/4" 36 25 10 400

24001510 1/2"x3/8" 36 25 10 400

24002010 3/4"x3/8" 39 25 10 250

24002015 3/4"x1/2" 39 25 10 240

24002515 1"x1/2" 45 25 10 160

24002520 1"x3/4" 45 25 10 160

24003215 11/4"x1/2" 50 25 5 90

24003220 11/4"x3/4" 50 25 5 90

24003225 11/4"x1" 50 25 5 90

24004015 11/2"x1/2" 55 25 5 80

24004020 11/2"x3/4" 55 25 5 70

24004025 11/2"x1" 55 25 5 60

24004032 11/2"x11/4" 55 25 5 50

24005015 2"x1/2" 65 25 5 50

24005020 2"x3/4" 65 25 5 50

24005025 2"x1" 65 25 5 50

24005032 2"x11/4" 65 25 5 40

24005040 2"x11/2" 65 25 5 40

24006515 21/2"x1/2" 74 25 1 22

24006525 21/2"x1" 74 25 1 22

24006532 21/2"x11/4" 74 25 1 22

24006540 21/2"x11/2" 74 25 1 22

24006550 21/2"x2" 74 25 1 22

24008040 3"x11/2" 80 25 1 18

24008050 3"x2" 80 25 1 18

24008065 3"x21/2" 80 25 1 18

24010050 4"x2" 94 25 1 6

24010065 4"x21/2" 94 25 1 6

24010080 4"x3" 94 25 1 6



280

DIMENSIONS

MAMELON M/MHEXAGONAL NIPPLE M/M

CODE Ø A PN

280008 1/4" 36 25 10 500

280010 3/8" 38 25 10 500

280015 1/2" 43 25 10 350

280020 3/4" 45 25 10 250

280025 1" 52 25 10 130

280032 11/4" 56 25 5 70

280040 11/2" 40 25 5 60

280050 2" 50 25 5 30

280065 21/2" 65 25 1 24

280080 3" 80 25 1 18

280100 4" 100 25 1 6

245

DIMENSIONS

MAMELON RÉDUIT M/MREDUCING NIPPLE M/M

CODE Ø A PN

24501008 3/8"x1/4" 39 25 10 200

24501508 1/2"x1/4" 44 25 10 300

24501510 1/2"x3/8" 44 25 10 200

24502010 3/4"x3/8" 47 25 10 250

24502015 3/4"x1/2" 47 25 10 250

24502515 1"x1/2" 53 25 10 130

24502520 1"x3/4" 53 25 10 130

24503215 11/4"x1/2" 57 25 5 70

24503220 11/4"x3/4" 57 25 5 70

24503225 11/4"x1" 57 25 5 70

24504020 11/2"x3/4" 59 25 5 60

24504025 11/2"x1" 59 25 5 60

24504032 11/2"x11/4" 59 25 5 60

24505025 2"x1" 68 25 5 30

24505032 2"x11/4" 68 25 5 30

24505040 2"x11/2" 68 25 5 30

24506540 21/2"x11/2" 75 25 1 20

24506550 21/2"x2" 75 25 1 20

24508050 3"x2" 83 25 1 20

24508065 3"x21/2" 83 25 1 20

24510080 4"x3" 89 25 1 10

246

DIMENSIONS

MANCHON RÉDUIT F/MREDUCING SOCKET F/M

CODE Ø A PN

24601008 3/8"x1/4" 35 25 10 400

24601508 1/2"x1/4" 43 25 10 380

24601510 1/2"x3/8" 43 25 10 380

24602010 3/4"x3/8" 48 25 10 220

24602015 3/4"x1/2" 48 25 10 220

24602515 1"x1/2" 55 25 10 120

24602520 1"x3/4" 55 25 10 120

24603215 11/4"x1/2" 60 25 5 80

24603220 11/4"x3/4" 60 25 5 80

24603225 11/4"x1" 60 25 5 80

24604020 11/2"x3/4" 63 25 5 60

24604025 11/2"x1" 63 25 5 60

24604032 11/2"x11/4" 63 25 5 60

24605025 2"x1" 70 25 5 30

24605032 2"x11/4" 70 25 5 30

24605040 2"x11/2" 70 25 5 30



312

DIMENSIONS

ECROU HEXAGONALBACKING NUT

CODE Ø A S PN

312010 3/8" 7 27 25 10 600

312015 1/2" 8 32 25 10 600

312020 3/4" 9 36 25 10 400

312025 1" 10 46 25 10 250

312032 11/4" 11 55 25 5 200

312040 11/2" 12 60 25 5 180

312050 2" 13 75 25 5 110

300

DIMENSIONS

BOUCHON HEXAGONAL FHEXAGONAL CAP F

CODE Ø A PN

300008 1/4" 15 25 10 800

300010 3/8" 18 25 10 800

300015 1/2" 20 25 10 600

300020 3/4" 23 25 10 400

300025 1" 25 25 10 250

300032 11/4" 28 25 5 100

300040 11/2" 28 25 5 90

300050 2" 33 25 5 70

300065 21/2" 36.5 25 1 25

300080 3" 38 25 1 18

300100 4" 46.5 25 1 12

301

DIMENSIONS

BOUCHON ROND FROUND CAP F

CODE Ø A PN

301010 3/8" 17 25 10 800

301015 1/2" 19 25 10 800

301020 3/4" 22 25 10 400

301025 1" 25 25 10 250

301032 11/4" 28 25 5 100

301040 11/2" 31 25 5 90

301050 2" 35 25 5 70

301065 21/2" 38 25 1 25

301080 3" 40 25 1 18

301100 4" 50 25 1 12

290

DIMENSIONS

BOUCHON MPLUG BEADED M

CODE Ø A C PN

290008 1/4" 22 8 25 10 1000

290010 3/8" 24 10 25 10 1000

290015 1/2" 26 11 25 10 800

290020 3/4" 32 17 25 10 400

290025 1" 36 19 25 10 250

290032 11/4" 39 22 25 5 160

290040 11/2" 41 22 25 5 130

290050 2" 48 27 25 5 60

290065 21/2" 54 32 25 1 50

290080 3" 60 36 25 1 26

290100 4" 70 41 25 1 18



321

DIMENSIONS

BRIDE TARAUDÉEFLOOR FLANGE

CODE ØRp Ø Ø1 Ø2 Ø3 b B PN

321015 1/2" 26 80 55 11 5 15 25 10 80

321020 3/4" 32 90 65 11 5 16 25 10 60

321025 1" 39 100 75 11 6 19 25 10 50

321032 11/4" 49 120 90 14 6 21 25 5 40

321040 11/2" 55 130 100 14 7 21 25 5 36

321050 2" 69 140 110 14 8 26 25 5 24

321065 21/2" 84 160 130 14 9 30 25 1 15

321080 3" 98 190 150 18 10 33 25 1 10

321100 4" 124 210 170 18 11 39 25 1 5

340

DIMENSIONS

UNION À JOINT CONIQUE F/FUNION WITH TAPERED SEAT F/F

CODE Ø A B K S1 S2 X PN

340008 1/4" 42 16.5 10 19 33 3/4” 25 10 150

340010 3/8" 45 17 10 21 36 7/8” 25 10 150

340015 1/2" 48 19 13 25 44 1 1/8” 25 10 120

340020 3/4" 52 20 15 31 50 1 1/4” 25 10 80

340025 1" 58 22 17 38 55 1 1/2” 25 10 60

340032 11/4" 65 23.5 19 48 70 2” 25 5 40

340040 11/2" 70 25.5 19 53.5 75 2 1/4” 25 5 30

340050 2" 78 27 24 66 90 2 3/4” 25 5 20

340065 21/2" 85 30 27 84 110 3 1/2” 25 1 10

340080 3" 95 31 30 96.5 130 4” 25 1 6

340100 4" 110 36 36 125 150 5” 25 1 2

341

DIMENSIONS

UNION À JOINT CONIQUE M/FUNION WITH TAPERED SEAT M/F

CODE Ø A PN

341008 1/4" 55 25 10 150

341010 3/8" 58 25 10 150

341015 1/2" 66 25 10 100

341020 3/4" 72 25 10 60

341025 1" 80 25 10 40

341032 11/4" 90 25 5 30

341040 11/2" 95 25 5 20

341050 2" 106 25 5 15

341065 21/2" 118 25 1 8

341080 3" 126 25 1 6

341100 4" 133 25 1 2

529

DIMENSIONS

MANCHON M/FSOCKET M/F

CODE Ø A D K1 K2 PN

529015 1/2" 43 29 13 15 25 10 360

529020 3/4" 48 35.8 15 16 25 10 220

529025 1" 55 43 17 19 25 10 120

529032 11/4" 60 52.5 19 21 25 5 80

529040 11/2" 63 59 19 21 25 5 60

529050 2" 70 72.5 24 25 25 5 30

Documents

GALVANISED MALLEABLE IRON FITTINGS · 2018. 11. 15. · Diamètre nominal selon ISO 6708 Fabriqué pour tube DIN 2440 & DIN 2448 Manufactured under norm UNE EN 10242 Union threads