"150 lub qhov dej npauj npaim" feem ntau muaj ob qho kev ntsuas sib xws:
- DN150: Nominal txoj kab uas hla 150 hli (sib npaug rau 6 nti hauv NPS).
- 150lb / 150 / Chav Kawm 150: Kev ntsuas siab ANSI/ASME Chav Kawm 150 (kwv yees li 150 psi, feem ntau hauv cov txheej txheem txheem Asmeskas, sib npaug rau PN20 hauv Suav Teb / Lub Tebchaws Yelemees).
1. DN150 / 6 "Npauj npaim Valve Qhov ntev
Cov hom npauj npaim valve suav nrog Wafer, Lug, thiab Double Flanged. Cov ntaub ntawv hauv qab no qhia txog cov yam ntxwv tseem ceeb raws li cov qauv xws li ASME B16.5.
1.1 Hom Wafer/Lug (Hom Clip-on/Lug, kev sib txuas luv luv, ua raws li ISO 5752):
- Lub ntsej muag rau lub ntsej muag ntev: 55–57 hli
- Qhov Siab Tag Nrho (qhov ncej liab qab tsis muaj actuator): 320–400 hli (concentric/kev ua tau zoo)
- Qhov loj ntawm lub ncej:≈14 * 14 hli
1.2 Hom Ob Chav Flanged (Kev sib txuas Ob Chav Flanged, ua raws li ISO 5752):
- Lub ntsej muag rau lub ntsej muag ntev: Kwv yees li 140mm / 210mm
- Qhov Siab Tag Nrho (tus ncej liab qab tsis muaj actuator): 410 mm / 589mm (concentric / ob chav) 2. ASME B16.5 Chav Kawm 150 Flange Cov Kev Cai Tseem Ceeb (Siv rau NPS 6 "/ DN150)
Qhov no yog tus qauv rau kev sib txuas ntawm lub qhov (butterfly valve flange) (Hom Wafer/Lug xav tau lub yeeb nkab flange sib phim, Hom Ob Chav Flanged los nrog lub flange).
| Cov Qauv | Tus nqi (nti) | Tus nqi (hli kwv yees) | Cov Lus Cim |
| Flange Sab Nraud Txoj Kab uas hla (OD) | 11.00 teev sawv ntxov | 279.4 | |
| Txoj kab uas hla ntawm lub voj voog ntsia hlau | 9.50 | 241.3 | |
| Tus naj npawb ntawm cov ntsia hlau | 8 | – | |
| Qhov Loj ntawm Bolt | 3/4" | M20 sib npaug | UNC 3/4"-10 xov |
| Qhov Loj ntawm Qhov Rooj | 0.88 | 22.2 | |
| Lub ntsej muag tsa txoj kab uas hla | 8.50 | 215.9 | Ib txwm muaj rau RF flanges |
| Flange Thickness (min) | 1.00 | 25.4 | Xws li lub ntsej muag tsa |
3. 150 Flange Bolt Daim Ntawv Qhia & Torque
3.1Chav Kawm 150 NPS 6 "Bolt Cov Lus Qhia:
- Tus naj npawb ntawm Bolts: 8
- Txoj kab uas hla ntawm lub ntsia hlau: 3/4"
- Qhov Ntev ntawm Lub Qhov (1/16" RF): Kwv yees li 4 nti (102 (hli)
Cov lus qhia rau kev siv lub zog flange bolt rau kev teeb tsa lub valve npauj npaim (tom qab lubrication, cross-tightening):
| Qhov Loj ntawm Lub Vev Xaib | Qhov Loj ntawm Bolt | Qhov Torque Tsawg Kawg Nkaus (ft-lb) | Max Torque (ft-lb) |
| 5"–8" | 3/4" | 30–40 | 100–120 |
3.2 Cov Kauj Ruam Ua Kom Nruj (Ua Kom Nruj Hla):
a. Thawj Zaug: 30% Torque
b. Qhov thib ob: 60% Torque
c. Qhov Thib Peb: 100% Torque
d. Qhov Kawg: Xyuas kom raws moos/sijhawm teem sijhawm