ASTM A182 F51 trunnion-mounted pob valve yog lub valve tsim uas ruaj lub pob siv lub trunnion (txhawb ncej). Nws cov qauv tseem ceeb muaj lub cev lub cev, lub pob, kev txhawb nqa trunnion, lub rooj zaum valve, thiab cov cuab yeej ua haujlwm. Tsis zoo li cov pob valve ib txwm muaj, lub pob nyob rau hauv ib qho trunnion imported -mounted pob valve yog kho los ntawm sab sauv thiab sab trunnions, ua kom qhib thiab kaw nkaus xwb los ntawm rotating ib ncig ntawm lub hauv paus axis. Qhov kev tsim no ua rau txo qis kev ua haujlwm torque thiab txhim kho kev sib khi kev ntseeg siab nyob rau hauv siab - cov kev mob siab.
Cov yam ntxwv zoo
Trunnion Support System
Lub pob yog txuas nrog lub valve lub cev ntawm ob sab ntawm trunnions, tsim ib qho kev txhawb nqa ruaj khov. Cov trunnions yog ua los ntawm siab -lub zog alloy steel (xws li, F91, F92) los yog stainless hlau (xws li, 316L), nrog rau lawv cov nto nitrided los txhim kho hnav tsis kam. Lub clearance nruab nrab ntawm lub trunnion thiab lub pob yog tswj nyob rau hauv ib tug ntau ntawm 0.05-0.1 mm los xyuas kom meej kev sib hloov du thiab tiv thaiv kom txhob to.
Bidirectional Sealing Rooj
Lub rooj zaum muaj lub caij nplooj ntoos hlav-loaded tsim, ua tiav bidirectional xoom leakage los ntawm ob qho tib si hlau-rau-hlau hard sealing lossis mos sealing (xws li PTFE, PEEK). Nyob rau hauv siab - cov kev mob siab, lub rooj zaum cia li them nyiaj rau kev hnav kom muaj kev sib khi. Piv txwv li, ntawm 10 MPa, kev sib cuag kev ntxhov siab ntawm lub rooj zaum thiab lub pob tuaj yeem ncav cuag 200 N / mm², kom ntseeg tau ntev -lub sij hawm sealing.
Tsawg-Torque Operating Mechanism
Kev khiav hauj lwm torque ntawm lub trunnion imported-mounted pob valve tsuas yog 30% -50% ntawm lub pob valve, ua tsaug rau trunnion kev txhawb nqa txo kev sib txhuam ntawm lub pob thiab lub rooj zaum. Lub tshuab tsav tuaj yeem ua tau manually, pneumatically, lossis hluav taws xob ua haujlwm, nrog cov hluav taws xob actuators xaiv tau nruab nrog cov ntse tswj modules rau kev saib xyuas tej thaj chaw deb thiab kev kuaj mob.
Order specification
Lub npe: API 6D Pob Valve
Loj: 10 nti (DN250)
Chav Kawm: 1500 LB (PN250)
Kev tsim kho: Full Bore
Kev sib txuas xaus: Flanged RF
Khoom siv: DSS ASTM A182 F51
Txuj: API 6D
ASTM A182 F51 Pob Valve Test Siab
| Hom kev xeem | Test kua | Test Siab (bar) | |||||
| Chav Kawm 150 | Chav Kawm 300 | Chav Kawm 600 | Chav Kawm 900 | Chav Kawm 1500 | Chav Kawm 2500 | ||
| Plhaub Test | Dej | 30 | 77.55 | 155.10 | 232.65 | 38.79 | 64.64 |
| High Pressure Seat Test | Dej | 22 | 56.87 | 113.74 | 170.61 | 284.46 | 47.40 |
| Low Pressure Seat Test | Cua | 6 | 6 | 6 | 6 | 6 | 6 |
Kev kos duab
Tiv tauj peb rau cov nqi tam sim no