"I-valve ye-butterfly engu-150" ngokuvamile ihilela amapharamitha amabili avamile:
- DN150: Ububanzi obujwayelekile obungu-150mm (okulingana namasentimitha angu-6 ku-NPS).
- 150lb / 150 / Isigaba 150: Isilinganiso sokucindezela Isigaba 150 se-ANSI/ASME (cishe i-150 psi, esivamile ezinhlelweni ezijwayelekile zaseMelika, esilingana ne-PN20 eShayina/eJalimane).
1. Ubukhulu bevalvu yebhabhathane engu-DN150 / 6"
Izinhlobo zamavalvu e-Butterfly zifaka phakathi i-Wafer, i-Lug, kanye ne-Double Flanged. Idatha elandelayo ifingqa amapharamitha abalulekile ngokusekelwe ezindinganisweni ezifana ne-ASME B16.5.
1.1 Uhlobo lwe-Wafer/Lug (Uhlobo lwe-Clip-on/Lug, uxhumano olufushane oluvamile, luhambisana ne-ISO 5752):
- Ubuso Nobuso Ubude: 55–57 mm
- Ukuphakama Okuphelele (umgodi ongenalutho ngaphandle kwe-actuator): 320–400 mm (ukusebenza okugxile/okuphezulu)
- Usayizi womgodi:≈14*14mm
1.2 Uhlobo Olunezinhlangothi Ezimbili (Uxhumano Olunezinhlangothi Ezimbili, oluhambisana ne-ISO 5752):
- Ubude Bobuso Nobuso: Cishe 140mm/210mm
- Ukuphakama Okuphelele (umgodi ongenalutho ongenawo i-actuator): 410 mm/589mm (ogxile/ophindwe kabili) 2. Amapharamitha Ayisisekelo E-ASME B16.5 Class 150 Flange (Asebenza ku-NPS 6" / DN150)
Lena indinganiso yokuxhumeka kwe-flange ye-butterfly valve (Uhlobo lwe-Wafer/Lug ludinga i-flange yepayipi efanayo, uhlobo lwe-Double Flanged luza ne-flange).
| Ipharamitha | Inani (amayintshi) | Inani (cishe mm) | Amanothi |
| Ububanzi Bangaphandle Be-Flange (OD) | 11.00 | 279.4 | |
| Ububanzi Bendilinga Yebholithi | 9.50 | 241.3 | |
| Inani Lamabholti | 8 | – | |
| Usayizi we-Bolt | 3/4" | Okulinganayo kwe-M20 | Izintambo ze-UNC 3/4"-10 |
| Ububanzi bembobo yebholithi | 0.88 | 22.2 | |
| Ububanzi Bobuso Obuphakanyisiwe | 8.50 | 215.9 | Okuvamile kuma-flange e-RF |
| Ubukhulu beFlange (iminithi) | 1.00 | 25.4 | Kubandakanya ubuso obuphakanyisiwe |
3. Ishadi le-Flange Bolt elingu-150 kanye ne-Torque
3.1Imininingwane yeBolt ye-Class 150 NPS 6":
- Inani Lamabholithi: 8
- Ububanzi beBolt: 3/4"
- Ubude Bebholthi Eliphakanyisiwe (1/16" RF): Cishe amasentimitha angu-4 (102 (mm)
I-torque ye-flange bolt enconyiwe yokufakwa kwe-butterfly valve (ngemuva kokugcotshwa, ukuqinisa okuphambeneyo):
| Usayizi weValve | Usayizi we-Bolt | I-Torque encane (ft-lb) | I-Max Torque (ft-lb) |
| 5"–8" | 3/4" | 30–40 | 100–120 |
3.2 Izinyathelo Zokuqinisa (Ukuqinisa Okuphambeneyo):
a. Umzuliswano Wokuqala: I-Torque engu-30%
b. Umzuliswano Wesibili: I-Torque engu-60%
c. Umzuliswano Wesithathu: I-Torque Engu-100%
d. Umjikelezo Wokugcina: Hlola ngokwewashi/ngokuphambene newashi