Zanglamaydigan po'latdan 304 uzun radiusli tirsakquvur tizimlarida oqim yo'nalishini o'zgartirish uchun ishlatiladigan eng muhim komponentlardan biri bo'lib, bosimning pasayishi va oqim turbulentligini ta'minlaydi.
Ushbu maqola zanglamas po'latdan yasalgan 304 LR tirsaklar uchun o'lchovli spetsifikatsiyalarning umumiy ko'rinishi bo'lib, sanoat -standart ASME B16.9 Zavodda ishlab chiqarilgan-Qayta tikilgan pay-payvandlash armaturalari tomonidan boshqariladi.
ASME B16.9 standartining umumiy ko'rinishi
ASME B16.9 tan olingan standart bo'lib, tirsaklar, teelar, reduktorlar va qopqoqlarni o'z ichiga olgan ishlangan payvandlash armaturalari uchun o'lchamlar, toleranslar va belgilarni belgilaydi. Uzun radiusli tirsaklar uchun markaz{2}}to-oʻlchami nominal quvur hajmining dyuymdagi 1,5 barobari sifatida belgilanadi, bu qisqa radiusli tirsaklarga nisbatan yaxshiroq oqim xususiyatlarini taʼminlaydi.
Ushbu standart turli xil materiallardan, shu jumladan 304 kabi zanglamaydigan po'latdan yasalgan armatura uchun qo'llaniladi va choksiz va payvandlangan konstruksiyalarni qamrab oladi. O'lchovlar metrik (mm) va AQShning odatiy (dyuym) birliklarida taqdim etiladi.
ASME B16.9 90 darajali uzun radiusli tirsaklar oʻlchami parametrlari
90 daraja uzunlikdagi radiusli tirsaklarning o'lchovli xarakteristikalari ularning quvur tizimlariga to'g'ri mos kelishi va ishlashini aniqlaydigan bir necha muhim parametrlar bilan belgilanadi:
Nominal quvur hajmi (NPS): Birlashtiruvchi trubaning standart diametri.
Tashqi diametri (OD): Tirsak uchlarining tashqi o'lchami, u ulanish trubasiga mos kelishi kerak.
Markazdan{0}}oxirigacha-oʻlcham (A): markaz chizigʻining kesishgan nuqtasidan tirsak oxirigacha boʻlgan masofa.
Egrilik radiusi (R): LR tirsaklari uchun bu nominal diametrdan 1,5 barobar ko'p standartlashtirilgan.
Devor qalinligi: Quvurlar tizimi talablariga mos kelishi uchun jadval raqamiga qarab o'zgaradi (masalan, Sch 5S, 10S, 40S, 80S).
90 daraja uzun radiusli tirsak o'lchamlari
|
NPS |
OD (mm/dyuym) |
Markazdan-oxirigacha-A (mm/dyuym) |
|
1/2 |
21.3 / 0.84 |
38 / 1.50 |
|
3/4 |
26.7 / 1.05 |
38 / 1.50 |
|
1 |
33.4 / 1.32 |
38 / 1.50 |
|
1-1/4 |
42.2 / 1.66 |
48 / 1.88 |
|
1-1/2 |
48.3 / 1.90 |
57 / 2.25 |
|
2 |
60.3 / 2.38 |
76 / 3.00 |
|
2-1/2 |
73.0 / 2.88 |
95 / 3.75 |
|
3 |
88.9 / 3.50 |
114 / 4.50 |
|
3-1/2 |
101.6 / 4.00 |
133 / 5.25 |
|
4 |
114.3 / 4.50 |
152 / 6.00 |
|
5 |
141.3 / 5.56 |
190 / 7.50 |
|
6 |
168.3 / 6.62 |
229 / 9.00 |
|
8 |
219.1 / 8.62 |
305 / 12.00 |
|
10 |
273.0 / 10.75 |
381 / 15.00 |
|
12 |
323.8 / 12.75 |
457 / 18.00 |
|
14 |
355.6 / 14.00 |
533 / 21.00 |
|
16 |
406.4 / 16.00 |
610 / 24.00 |
|
18 |
457.0 / 18.00 |
686 / 27.00 |
|
20 |
508.0 / 20.00 |
762 / 30.00 |
|
22 |
559.0 / 22.00 |
838 / 33.00 |
|
24 |
610.0 / 24.00 |
914 / 36.00 |
|
26 |
660.0 / 26.00 |
991 / 39.00 |
|
28 |
711.0 / 28.00 |
1067 / 42.00 |
|
30 |
762.0 / 30.00 |
1143 / 45.00 |
|
32 |
813.0 / 32.00 |
1219 / 48.00 |
|
34 |
864.0 / 34.00 |
1295 / 51.00 |
|
36 |
914.0 / 36.00 |
1372 / 54.00 |
|
38 |
965.0 / 38.00 |
1448 / 57.00 |
|
40 |
1016.0 / 40.00 |
1524 / 60.00 |
|
42 |
1067.0 / 42.00 |
1600 / 63.00 |
|
44 |
1118.0 / 44.00 |
1676 / 66.00 |
|
46 |
1168.0 / 46.00 |
1753 / 69.00 |
|
48 |
1219.0 / 48.00 |
1829 / 72.00 |
45 daraja uzun radiusli tirsak o'lchamlari
|
NPS |
OD (mm/dyuym) |
Oʻrtadan-to-B oxirigacha (mm/dyuym) |
|
1/2 |
21.3 / 0.84 |
16 / 0.62 |
|
3/4 |
26.7 / 1.05 |
19 / 0.75 |
|
1 |
33.4 / 1.32 |
22 / 0.88 |
|
1-1/4 |
42.2 / 1.66 |
25 / 1.00 |
|
1-1/2 |
48.3 / 1.90 |
29 / 1.12 |
|
2 |
60.3 / 2.38 |
35 / 1.38 |
|
2-1/2 |
73.0 / 2.88 |
44 / 1.75 |
|
3 |
88.9 / 3.50 |
51 / 2.00 |
|
3-1/2 |
101.6 / 4.00 |
57 / 2.25 |
|
4 |
114.3 / 4.50 |
64 / 2.50 |
|
5 |
141.3 / 5.56 |
79 / 3.12 |
|
6 |
168.3 / 6.62 |
95 / 3.75 |
|
8 |
219.1 / 8.62 |
127 / 5.00 |
|
10 |
273.0 / 10.75 |
159 / 6.25 |
|
12 |
323.8 / 12.75 |
190 / 7.50 |
|
14 |
355.6 / 14.00 |
222 / 8.75 |
|
16 |
406.4 / 16.00 |
254 / 10.00 |
|
18 |
457.0 / 18.00 |
286 / 11.25 |
|
20 |
508.0 / 20.00 |
318 / 12.50 |
|
22 |
559.0 / 22.00 |
343 / 13.50 |
|
24 |
610.0 / 24.00 |
381 / 15.00 |
|
26 |
660.0 / 26.00 |
406 / 16.00 |
|
28 |
711.0 / 28.00 |
438 / 17.25 |
|
30 |
762.0 / 30.00 |
470 / 18.50 |
|
32 |
813.0 / 32.00 |
502 / 19.75 |
|
34 |
864.0 / 34.00 |
533 / 21.00 |
|
36 |
914.0 / 36.00 |
565 / 22.25 |
|
38 |
965.0 / 38.00 |
600 / 23.62 |
|
40 |
1016.0 / 40.00 |
632 / 24.88 |
|
42 |
1067.0 / 42.00 |
660 / 26.00 |
|
44 |
1118.0 / 44.00 |
695 / 27.38 |
|
46 |
1168.0 / 46.00 |
727 / 28.62 |
|
48 |
1219.0 / 48.00 |
759 / 29.88 |
180 daraja uzun radiusli qaytish o'lchamlari
|
NPS |
OD (mm) |
Markazdan--Markaz O (mm) |
Orqaga--Yuz K (mm) |
|
1/2 |
21.3 |
76 |
48 |
|
3/4 |
26.7 |
76 |
51 |
|
1 |
33.4 |
76 |
56 |
|
1-1/4 |
42.2 |
95 |
70 |
|
1-1/2 |
48.3 |
114 |
83 |
|
2 |
60.3 |
152 |
106 |
|
2-1/2 |
73 |
190 |
132 |
|
3 |
88.9 |
229 |
159 |
|
3-1/2 |
101.6 |
267 |
184 |
|
4 |
114.3 |
305 |
210 |
|
5 |
141.3 |
381 |
262 |
|
6 |
168.3 |
457 |
313 |
|
8 |
219.1 |
610 |
414 |
|
10 |
273 |
762 |
518 |
|
12 |
323.8 |
914 |
619 |
|
14 |
355.6 |
1067 |
711 |
|
16 |
406.4 |
1219 |
813 |
|
18 |
457 |
1372 |
914 |
|
20 |
508 |
1524 |
1016 |
|
22 |
559 |
1676 |
1118 |
|
24 |
610 |
1829 |
1219 |
Devor qalinligi jadvallari
Zanglamaydigan po'latdan yasalgan 304 uzun radiusli tirsaklar quvurlar jadvaliga mos keladigan turli devor qalinligida mavjud. Umumiy variantlarga quyidagilar kiradi:
|
NPS (DN) |
OD (mm) |
SCH 5S (mm) |
SCH 10S (mm) |
SCH 40S (mm) |
SCH 80S (mm) |
|
1/2 (15) |
21.3 |
1.65 |
2.11 |
2.77 |
3.73 |
|
3/4 (20) |
26.7 |
1.65 |
2.11 |
2.87 |
3.91 |
|
1 (25) |
33.4 |
1.65 |
2.77 |
3.38 |
4.55 |
|
1-1/4 (32) |
42.2 |
1.65 |
2.77 |
3.56 |
4.85 |
|
1-1/2 (40) |
48.3 |
1.65 |
2.77 |
3.68 |
5.08 |
|
2 (50) |
60.3 |
1.65 |
2.77 |
3.91 |
5.54 |
|
2-1/2 (65) |
73.0 |
2.11 |
3.05 |
5.16 |
7.01 |
|
3 (80) |
88.9 |
2.11 |
3.05 |
5.49 |
7.62 |
|
4 (100) |
114.3 |
2.11 |
3.05 |
6.02 |
8.56 |
|
6 (150) |
168.3 |
2.77 |
3.40 |
7.11 |
10.97 |
|
8 (200) |
219.1 |
2.77 |
3.76 |
8.18 |
12.7 |
|
10 (250) |
273.1 |
3.4 |
4.19 |
9.27 |
12.7 |
|
12 (300) |
323.9 |
3.96 |
4.57 |
9.53 |
12.7 |
To'g'ri zanglamaydigan po'latdan 304 LR tirsagini tanlash uchun NPS, burchak va devor jadvalini quvur liniyasi talablariga mos kelishi kerak, bularning barchasi ASME B16.9 standartining qat'iy o'lchov nazorati bilan boshqariladi.
Sizda aniq quvurlarning nominal o'lchamlari (NPS) yoki jadvalingiz bormi?batafsil iqtibos?
