Zigong Weite Valve MFG. Co.,Ltd.
Zigong Weite Valve MFG. Co.,Ltd.
Tipo di pagamento:L/C,T/T
Incoterm:FOB,CFR,EXW,CIF
Quantità di ordine minimo:1 Set/Sets
Trasporti:Ocean,Land,Air
Porta:SHANGHAI,GUANGZHOU,NINGBO
Modello: VTQF
marchio: Vt
Tipi Di: Valvole a sfera
Supportare La Personalizzazione: OEM, ODM
Luogo D'origine: Cina
Applicazione: Generale
Temperatura Media: Temperatura media
Potenza: Manuale
Mezzo Di Flusso: Gas, Acqua, Olio
Struttura: Sfera
Pacchetto: Export Standard Plywoodcase
produttività: 10000sets/year
Trasporti: Ocean,Land,Air
Luogo di origine: Cina
Supportare: 10000sets/year
Certificati : API 6D,API 607,ISO 9001,ISO 14001,ISO 45001
Porta: SHANGHAI,GUANGZHOU,NINGBO
Tipo di pagamento: L/C,T/T
Incoterm: FOB,CFR,EXW,CIF
| Comparison Items | Floating Ball Valve | Trunnion Ball Valve |
| Ball Structure | The ball has no supporting shaft. Under the action of fluid pressure, the ball can displace to a certain extent and press tightly against the sealing surface at the outlet end to ensure sealing. | The trunnion ball valve on the valve body by the supporting shafts at the upper and lower ends, and the ball cannot have axial displacement. |
| Sealing | The floating ball valve seat design: sealing is achieved by the close contact between the ball and the valve seat. The sealing pair is generally a soft seal, such as polytetrafluoroethylene, etc. | The trunnion mounted ball valve have two type: soft seated and metal seated. The soft seatedl is similar to that of the floating ball valve; themetal seated usually adopts a metal to metal sealing. |
| Applicable Working Conditions | Generally applicable to medium - low pressure (usually less than or equal to 1.6MPa) and medium - small diameter (usually less than or equal to DN200) pipeline systems. | Applicable to high pressure and large diameter pipeline systems, capable of withstanding high pressures (up to dozens of MPa) and large diameters (up to DN1000 and above). |
| Fluid Resistance | The contact between the ball and the valve seat is a line seal. In the fully open state, the fluid resistance is relatively small. | In the fully open state, due to the fixed ball, the fluid can pass through the valve unobstructed, and the fluid resistance is even smaller. |
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