Nostopalloventtiili is used to cut off the flow of media and is suitable for occasions that need to be opened frequently. Nostopalloventtiili is most commonly used in chemical production. Milestone Valve Co. Ltd specializes in the production of Nostopalloventtiili. The products are of high quality, stable performance, and are used in various fields of industry with excellent functions.
2. Parameters of Nostopalloventtiili
Venttiilin tyyppi
Nostopalloventtiili
DN
DN10~DN700
PNïMPMPaï¼
1.6~16Mpa
Suunniteltu lämpötila-alue
-15â „ƒï½ž200â„ ƒ
Yhteystyyppi:
Laipallinen
Toimilaitteen tyyppi
Manuaalinen käyttö, pneumaattinen, hydraulinen tai sähköinen toimilaite
Soveltuva väliaine
Vesi, öljy, kaasu ja erilaiset korroosioväliaineet
Varaosat
Materiaali
Rungon suojus
Taottu teräs, valuteräs, ruostumaton teräs
Varsi
Taottu teräs, valuteräs, ruostumaton teräs
Pakkaus
Joustava grafiitti, parannettu joustava grafiitti, PTEE
Tiivistyslevy
Parannettu Flexiblo-grafiitti, ruostumaton teräs, PTFE
Tiivistävät kasvot
13Cr,STL, PTFE, Nylon, Runkomateriaalilla
3.Structural features of Nostopalloventtiili:
1) The sealing parts of the Nostopalloventtiili are the valve disc and the valve seat. In order to make the Nostopalloventtiili close tightly, the mating surface of the valve disc and the valve seat should be ground or gaskets, and the sealing surface can also be inlaid with bronze, stainless steel, etc. , Wear-resistant materials. The valve disc and the valve stem of Nostopalloventtiili are movably connected to facilitate the tight fit between the valve disc and the valve stem.
2) The lifting of the valve disc of Nostopalloventtiili is generally controlled by the valve stem. The upper part of the Nostopalloventtiili stem is a handwheel, and the middle part is a thread and packing seal section. The function of the packing is to prevent the medium inside the valve body from leaking along the valve stem.
3) The main function of Nostopalloventtiili in chemical pipelines is to cut off or connect fluid. Nostopalloventtiili's regulating flow is better than gate valves, but Nostopalloventtiili cannot be used to regulate pressure and flow for a long time. Otherwise, Nostopalloventtiili sealing surface It may be eroded by the medium and damage the sealing performance.
4) Nostopalloventtiili can be used in pipelines such as water, steam, and compressed air, but it is not suitable for medium pipelines with high viscosity, easy coking, and easy precipitation, so as not to damage the sealing surface.
4. UKK