Ihe nkedo akwa igwe anaghị agba nchara

Tees igwe anaghị agba nchara bụ ọkpọkọ ọkpọkọ na njikọ ọkpọkọ.A na-eji ya na ọkpọkọ alaka nke isi pipeline.Tee igwe anaghị agba nchara nwere nha nha nha yana dayameta dị iche iche.Ngwunye ọkpọkọ nke tee dayameta hà nhata bụ otu nha.

Enwere ụdị tees abụọ nke eriri na usoro mmepụta: ịgha na nkedo.Forging na-ezo aka kpo oku na ịkpụ igwe ingot nchara ma ọ bụ okirikiri iji mepụta udi, wee dozie eri ahụ na lathe.Nkedo na-ezo aka gbazee ingot nchara na ịwụsa ya na tee.Mgbe emechara ihe nlereanya ahụ, a na-eme ya ka ọ dị jụụ.N'ihi usoro nrụpụta dị iche iche, nrụgide ha na-ebu dịkwa iche, na nguzogide nrụgide nke ịgha mkpụrụ dị elu karịa nke nkedo.

Isi ụkpụrụ nrụpụta maka tees eri na-agụnye ISO4144, ASME B16.11, na BS3799.


Nkọwa ngwaahịa

Mkpado ngwaahịa

Tebụl akụkụ isi

DN

Nha

φDmm

Amm

DN6

1/8"

15

17.0

DN8

1/4"

18

19.0

DN10

3/8"

21.5

23.0

DN15

1/2"

26.5

27.0

DN20

3/4"

32

32.0

DN25

1”

39.5

37.0

DN32

11/4”

48.5

43.0

DN40

11/2"

55

48.0

DN50

2”

67

56.0

DNA65

21/2"

84

69.0

DN80

3”

98

78.0

DN100

4”

124.5

94.0

1

Ụdị eriri na ọkọlọtọ

Mba

China

Japan

Korea

German

UK

USA

Ụdị eriri

RC RP G

PT PF

PT, PF

R, RP

BSPT BSPP

NPT NPSC

Ọkọlọtọ

GB/T7306

GB/T7307

JIS B0203

JIS B0202

KS B0221

KS B0222

DIN2999

BS21

ANSI/ASME B1.20.1

 

Ngosipụta ngwaahịa

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