Lub cev lub cev, cov khoom siv lub kaus mom yog hu ua cov khoom siv lub plhaub (tseem hu ua cov khoom siv lub cev), lub rooj vag (valve), pob, lub rooj zaum, qia, lub rooj zaum foob feem ntau hu ua cov khoom sab hauv, ntxiv rau cov fasteners thiab lwm yam. Raws li kev faib khoom ntawm lub cev tseem ceeb, tib neeg feem ntau faib lub valve rau hauv:
1, non-metallic li qub: xws li ceramic li qub, iav li qub, yas li qub.
2, hlau khoom li qub: xws li tooj liab alloy li qub, aluminium alloy li qub, txhuas alloy li qub, titanium alloy li qub, monel li qub, cam khwb cia hlau li qub, carbon steel li qub, alloy steel li qub.
3, hlau lub cev lined nrog Dan li qub: xws li lead-lined li qub, yas-lined li qub, enamel-lined li qub.
- Valve lub cev khoom
1 Valve Cov Khoom Kub Kub Siab Ntsuas
ASTM A216 WCB Ua Haujlwm Siab (psi) 1psi =0.006895MPa
|
Kub degree F |
150 LB |
300 LB |
600 LB |
900 LB |
1500 LB |
2500 LB |
|
-20~100 |
285 |
740 |
1480 |
2220 |
3705 |
6170 |
|
200 |
260 |
675 |
1350 |
2025 |
3375 |
5625 |
|
300 |
230 |
655 |
1315 |
1970 |
3280 |
5470 |
|
400 |
200 |
635 |
1270 |
1900 |
3170 |
5280 |
|
500 |
170 |
600 |
1200 |
1795 |
2995 |
4990 |
|
600 |
140 |
550 |
1095 |
1640 |
2735 |
4560 |
|
650 |
125 |
535 |
1075 |
1610 |
2685 |
4475 |
|
700 |
110 |
535 |
1065 |
1600 |
2665 |
4440 |
|
750 |
95 |
505 |
1010 |
1510 |
2520 |
4200 |
|
800 |
80 |
410 |
825 |
1235 |
2060 |
3430 |
|
850 |
65 |
270 |
535 |
905 |
1340 |
2230 |
Valve ntsuas siab: Raws li ASME B16.34, lub plhaub lub zog ntsuas siab raws li 1.5 npaug ntawm kev ua haujlwm siab thiab sib npaug mus rau 25PSI tom ntej, dej sealing ntsuas siab raws li 1.1 npaug ntawm kev ua haujlwm siab, cua sealing ntsuas siab raws li {{ 7.6Mpa
- Valve feem ntau siv ASTM cov ntaub ntawv lub cev
|
ASTM cov khoom |
ASTM forging |
Cov qhab nia suav sib xws |
Siv tau qhov kub thiab txias qhov degree |
Siv tau nruab nrab |
|
Carbon Steel |
||||
|
A216 WCB |
A105 |
20 |
-29~427 |
Dej, liquefied gas, chav, roj, natural gas |
| Tsawg kub Carbon Steel | ||||
|
A352 LCB |
A350 LF2 |
16 Mn |
-46~343 |
Tsawg Kub Media |
|
A352 LCC |
A350 LF2 |
16 Mn |
-46~343 |
Tsawg Kub Media |
| High kub alloy steel | ||||
|
A217 WC1 |
A182 F1 |
|
-29~468 |
Kub kub nruab nrab |
|
A217 WC 6 |
A182 F11 |
15 CrMo |
-29~593 |
Kub kub nruab nrab |
|
A217 WC 9 |
A182 F22 |
10Cr2Mo1 |
-29~593 |
Kub kub nruab nrab |
|
A217 C5 |
A182 F5 |
1cr5 hmo |
-29~593 |
Corrosive kub xov xwm |
|
A217 C12 |
A182 F9 |
|
-29~593 |
Corrosive kub xov xwm |
| Martensitic Stainless hlau | ||||
|
A217 CA 15 |
A182 F6a |
1 Cr13 |
-29~371 |
Lub zog qis dua 304 saum 450 degree |
|
Austenitic Stainless Hlau (C Tsawg dua lossis sib npaug rau 0.08) |
||||
|
TIAB SA 351 CF8 |
A182 F304 |
0Cr18Ni9 |
-196~537 |
Corrosive media |
|
A351 CWB 8M |
A182 F316 |
0Cr18Ni12Mo2Ti |
-196~537 |
Corrosive media |
|
Ultra-low carbon austenitic stainless hlau (C Tsawg dua lossis sib npaug rau 0.03) |
||||
|
A351 CF 3 |
A182 F304L |
00Cr18Ni10 |
-196~427 |
Corrosive media |
|
A351 CF 3M |
A182 F316L |
00Cr18Ni14Mo2 |
-196~454 |
Corrosive media |
| Tshwj xeeb Alloys | ||||
|
A351 CWJ 7M |
UNS N08020 (TSI 20) |
|
-29~149 |
Oxidizing xov xwm thiab ntau qhov ntau ntawm sulfuric acid |
|
Monel alloyM-30C |
UNS N04400 MONEL 400 |
|
-29~482 |
Hydrofluoric acid, dej hiav txwv |
|
Hastelloy H.B HC |
|
|
|
HB tiv taus hydrochloric acid, dilute sulfuric acid, phosphoric acid, formic acid thiab acetic acid. HC resistant rau nitric acid, nitric acid thiab sulfuric acid sib xyaw |
|
INCONEL alloy hlau |
|
|
|
Kub lye thiab alkaline sulfides |
