Dab tsi yogPTFE rooj vag Valve Seat Seals
Lub rooj vag valve lub rooj foob yog ib qho kev sib khi siv rau lub rooj vag li qub. PTFE rooj vag valve lub rooj ntsaws ruaj ruaj feem ntau yog siv rau hauv kev tswj cov kua dej hauv tshuaj, roj av, tshuaj, khoom noj khoom haus, thiab lwm yam kev lag luam kom ntseeg tau tias kev ua haujlwm zoo thiab txhim khu kev lag luam ntawm lub valve. Lub rooj vag valve lub rooj zaum feem ntau yog ua los ntawm cov ntaub ntawv elastic. Cov ntaub ntawv muaj xws li roj hmab (xws li NBR, EPDM, Viton, thiab lwm yam) thiab polytetrafluoroethylene (PTFE).
tshwj xeeb nta
- Cov ntaub ntawv elastomeric: Lub rooj vag valve lub rooj zaum feem ntau yog ua los ntawm cov ntaub ntawv elastomeric, xws li roj hmab lossis elastomeric polymers. Cov khoom siv no tuaj yeem tsim kom nruj ntawm lub rooj vag phaj thiab lub valve lub cev thiab muaj qee qhov compressibility thiab rov ua haujlwm kom haum rau kev sib khi raws li kev ua haujlwm sib txawv.
- Kev Tiv Thaiv Hluav Taws Xob: Qee qhov tshwj xeeb lub rooj vag valve lub rooj sib khi cov ntaub ntawv tuaj yeem muaj qhov hluav taws kub zoo thiab tuaj yeem tswj xyuas kev sib khi thaum muaj hluav taws thiab tiv thaiv cov nplaim taws thiab cov pa taws los ntawm lub valve.
- Siab foob: PTFE rooj vag valve lub rooj ntsaws ruaj ruaj tuaj yeem tiv taus siab, ua kom ntseeg tau tias lub valve tuaj yeem tiv thaiv cov pa nruab nrab thaum nws raug kaw. Yog li ntawd, lub rooj vag valve lub rooj zaum feem ntau yog ua los ntawm cov ntaub ntawv uas muab lub siab zoo foob, xws li hlau los yog elastomeric cov ntaub ntawv.
- Kev ua tau zoo los tiv thaiv: Lub PTFE rooj vag valve lub rooj foob tuaj yeem tiv thaiv qhov nruab nrab los ntawm kev xau los ntawm lub rooj zaum valve. Txhawm rau kom ua tau zoo los tiv thaiv kev ua tau zoo, lub rooj vag valve lub rooj zaum feem ntau yog siv cov txheej txheem sib khi, xws li cov qauv sib npaug los yog ntau txheej txheej sealing.
- Adaptability: Lub rooj vag valve lub rooj ntsaws ruaj ruaj tuaj yeem hloov kho raws li cov kev xav tau ntawm cov xov xwm sib txawv thiab kev ua haujlwm. Yog li ntawd, raws li qhov nruab nrab ntawm qhov nruab nrab thiab qhov chaw ua haujlwm, cov ntaub ntawv sealing tsim nyog thiab cov qauv tsim yuav tsum raug xaiv los xyuas kom meej sealing kev ua tau zoo thiab kev ntseeg tau.
- Kev hloov pauv ceev ceev: Lub rooj vag valve lub rooj foob tuaj yeem hloov cov xov xwm nrawm kom ua tau raws li qhov yuav tsum tau ua rau cov dej ntws. Yog li ntawd, cov yam ntxwv ntws ntawm cov kua dej feem ntau yog siv rau hauv kev tsim ntawm lub rooj zaum foob kom txo qis tsis kam thiab siab poob.
Cov yam ntxwv ntawm tus qauv
PTFE (polytetrafluoroethylene) rooj vag valve lub rooj foob muaj cov yam ntxwv hauv qab no:
■ Ib leeg sealing qauv: PTFE rooj vag valve lub rooj foob feem ntau yog siv cov qauv sib khi, uas yog, lub nplhaib sib khi ua los ntawm ib qho khoom siv. Cov qauv no yooj yim, compact, thiab yooj yim rau nruab thiab tswj.
■ Embedded tsim: PTFE rooj vag valve lub rooj foob feem ntau txais kev tsim qauv, uas yog, PTFE sealing nplhaib yog embedded rau hauv lub rooj zaum zawj hauv lub valve lub cev. Qhov kev tsim no ua kom lub nplhaib sealing ruaj khov thiab ruaj khov, tiv thaiv nws los ntawm kev hloov pauv lossis xoob thaum siv.
■ Bidirectional sealing kev ua tau zoo: PTFE rooj vag valve lub rooj foob muaj kev sib khi ua ke, uas yog, nws tuaj yeem kaw qhov nruab nrab thaum lub valve qhib lossis kaw. Qhov no txhais tau hais tias tsis hais qhov kev coj ua ntawm qhov nruab nrab, PTFE rooj vag valve lub rooj foob tuaj yeem muab kev sib khi ua tau zoo.
■ Kev ua haujlwm siab: Vim qhov tshwj xeeb ntawm cov khoom siv PTFE, PTFE rooj vag valve lub rooj zaum seals feem ntau xav tau kev ua haujlwm siab. Qhov no suav nrog kev tswj xyuas meej ntawm qhov loj me, cov duab, thiab qhov smoothness ntawm lub nplhaib sealing kom zoo sealing thiab kev ua haujlwm zoo.

Siv tau tej yam kev ua haujlwm
PTFE (polytetrafluoroethylene) rooj vag valve lub rooj foob muaj kev siv dav hauv ntau yam kev ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv cov haujlwm hauv qab no:
1. Corrosive media: PTFE rooj vag valve lub rooj ntsaws ruaj ruaj muaj kev tiv thaiv corrosion zoo heev thiab tuaj yeem tiv thaiv kev yaig ntawm ntau yam tshuaj lom neeg, nrog rau cov kua qaub muaj zog, alkalis, cov kuab tshuaj, thiab lwm yam. Yog li ntawd, nws yog qhov zoo tagnrho rau kev tuav thiab tswj corrosive media, xws li xws li tshuaj, roj av, tshuaj, thiab lwm yam lag luam.
2. Qhov nruab nrab kub-kub: Lub rooj vag valve lub rooj foob tuaj yeem tswj tau qhov kev ua haujlwm ruaj khov hauv qhov chaw kub kub. Feem ntau nws tuaj yeem siv nyob rau hauv qhov kub ntawm -200 degree rau +260 degree, yog li nws yog qhov tsim nyog rau cov ntawv thov uas yuav tsum tau ua haujlwm nyob rau hauv qhov kub thiab txias, xws li thermal media systems, roj av refining, thiab lwm yam. .
3. Tsawg-kub nruab nrab: Lub rooj vag valve lub rooj foob tuaj yeem muab kev ruaj ntseg sealing kev ua tau zoo nyob rau hauv ib puag ncig qis. Nws tseem mos thiab elastic ntawm qhov kub thiab txias thiab tuaj yeem tiv thaiv kev tawm xov xwm tawm. Yog li, nws yog qhov tsim nyog rau cov ntawv thov cryogenic xws li liquefied natural gas (LNG).
4. Kev ntxuav nruab nrab: Vim tias PTFE tsis yog nplaum, nws muaj kev hloov tau zoo rau kev ntxuav tawm. Nws tiv thaiv kev tshaj tawm los ntawm kev sib sau thiab txhaws lub rooj sib khi, kom ntseeg tau tias kev ua haujlwm du thiab zoo sealing ntawm lub rooj vag valve. Yog li ntawd, nws yog feem ntau siv rau hauv kev tu cov txheej txheem thiab kev lag luam zaub mov.
5. High-pressure daim ntawv thov: PTFE rooj vag valve lub rooj ntsaws ruaj ruaj muaj lub siab ua haujlwm zoo thiab tuaj yeem ua haujlwm siab. Nws tuaj yeem muab kev sib khi ruaj khov nyob rau hauv qhov chaw muaj kev kub ntxhov thiab tsim nyog rau cov tshuab uas xav tau kev tswj xyuas thiab kev ua haujlwm siab, xws li cov kav dej, cov kav dej tshuaj, thiab lwm yam.
Cov ntaub ntawv ntawm lub cev
| Lub cev muaj zog | Rating (Metric) | Kev ntsuas (Imperial) | Txoj Kev Xeem |
| Tshwj xeeb lub ntiajteb txawj nqus | 2.18 g / cc | 2.18 g / cc | DIN 53 479 |
| Saturated dej nqus | <= 0.050 % | <= 0.050 % | DIN 53 495 |
| Mechanical Properties | Kev ntsuas (metric) | Ratings (Imperial) | Kev sim |
| Pob siab hardness | 3 0.0 MPa @Time 30.0 sec |
4 350psi @Time 0.00833 hour |
DIN 53 456 |
| Tensile zog | 25. 0 MPa | 3 630psi | DIN 53 455 |
| Elongation (tawg) | 500 % | 500 % | DIN 53 455 |
| Tensile modulus | 0.700 GPa | 102 ksg | DIN 53 457 |
| Cov khoom hluav taws xob | Ratings (Metric) | Ratings (Imperial) | Kev sim |
| Dielectric tsis tu ncua | 2.1 @Frequency 1.00e+6 Hz |
2.1 @Frequency 1.00e+6 Hz |
DIN 53 483, IEC-250 |
| Dielectric poob Performance index | 0.00020 @Frequency 1.00e+6 Hz |
0.00020 @Frequency 1.00e+6 Hz |
DIN 53 483, IEC-250 |
| Thermal Performance | Rating (Metric) | Kev ntsuas (Imperial) | Txoj Kev Xeem |
| Coefficient ntawm linear thermal expansion | 200 µm / m- degree | 111 µin/in-degree F | |
| Thermal conductivity | 0.250 W/m-K | 1.74 BTU-in/hr-ft²-degree F | |
| Kev khiav hauj lwm kub siab tshaj plaws, Cua | 260 degree | 500 degree F | Kev siv tsis tu ncua |
| Kub distortion kub nyob rau hauv load (0.46 MPa) | 121 degree | 250 degree F | ISO-R 75 Txoj Kev B |
| iav hloov kub, Tg | {0}}.0 degree | -4 00 degree F | dynamic; DIN 53 736 |
Specification loj rooj
| Valve Nominal Diameter | Qib Siab | ||
| Ntiv | MM | PSI | Mpa |
| 1-13/16" | 46 | 10K/15K | 70/105 |
| 2-1/16" | 52 | 2K/3K/5K/10K/15K | 14/21/35/70/105 |
| 2-9/16" | 65 | 3K/5K/10K/15K | 21/35/70/105 |
| 3-1/16" | 78 | 10K/15K | 70/105 |
| 3-1/8" | 80 | 2K/3K/5K | 14/21/35 |
| 4-1/16" | 103 | 3K/5K/10K/15K | 21/35/70/105 |
| 5-1/8" | 130 | 5K | 35 |
| 6-3/8" | 162 | 3K/5K | 21/35 |
| 7-1/16" | 180 | 3K/5K | 21/35 |
| 7-1/16" | 180 | 3K/5K/10K | 35/70/105 |
Cov xwm txheej ua haujlwm
| Qhov kub thiab txias | Siab | Nruab nrab | Khoom siv |
| -50 degree ~ +260 degree | 0~15000 PSI | Hydraulic kua, roj crude, qaub roj / roj, H2S, dej qab ntsev | Sau PTFE/PEEK |
* Kev ceeb toom tshwj xeeb, yog tias koj xav tau cov khoom foob no, thov muab cov duab kos rau peb kom peb tuaj yeem muab kev pab zoo dua rau koj.
Yog tias koj xav paub ntau ntxiv txog cov khoom no, thovtiv tauj peb.
Cim npe nrov: Tuam Tshoj ptfe rooj vag valve rooj ntsaws ruaj ruaj, Tuam Tshoj ptfe rooj vag valve lub rooj seals manufacturers, lwm tus neeg, Hoobkas








