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Top Entry Trunnion Mounted Ball Valve
Yayaking Valve-Your Valve Expert
As the leading Ball Valves manufacturers come from China,Yayaking has rich experience in Top Entry Trunnion Mounted Ball Valve field.Yayaking top entry soft-seated trunnion mounted ball valves are designed according to API6D standard . The valves can be applied in wide temperature ranges ( -46~200℃), particularly for piping flow with large size or high pressure. The top entry ball valve can be used for in-line maintenance services.
Specification for Yayaking Top Entry Trunnion Mounted Ball Valve as follow:
Size：2″~24″（DN50~DN600）
Pressure Rating: ASME CLASS 150~600(PN16~PN100）
Body material：Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel,Low temperature steel,exotic alloy etc.
End connection：RF, BW, RTJ
Operation：Manual, Pneumatic, Electric, Hydraulic,ect.
Applicable: Water, Petroleum and Natural gas,ect
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Non-lubricated Plug Valve
A non-metallic elastomeric sleeve or liner is used in this type of valve. This sleeve is installed in the body cavity of the valve. The polished tapered plug acts as a wedge and presses the sleeve against the body.
This nonmetallic sleeve reduces the friction between the plug and the valve body. Non-lubricating plug valves required minimum maintenance. Due to the non-metallic seat, these valves are not used in high-temperature services.Size: NPS 1/2″~16″(DN15~DN400）
Pressure Rating: ASME Class150~900（PN16~PN160）
Body material：Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel,Low temperature steel
End connection：RF, BW, RTJ
Operation：Manual, Pneumatic, Electric, Hydraulic
Applicable: Petroleum, Chemical, Pharmaceutical, Chemical fertilizer, Power industry, such as the pipeline under various working conditions, cut off or connect pipe medium.
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Multi-Port Plug Valve
Yayaking Multiport Plug valves are used in transfer lines and for diverting services. A single multiport valve may serve the purpose of three or four gate valves or other types of the shutoff valve.
However, sometimes the multiport valve does not completely shut off flow. Great care should be taken in specifying the particular port arrangement for proper operation.Size: NPS 1/2″~16″(DN15~DN400）
Pressure Rating: ASME Class150~1500（PN16~PN260）
Body material：Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel,Low temperature steel
End connection：RF, BW, RTJ
Operation：Manual, Pneumatic, Electric, Hydraulic
Applicable: Petroleum, Chemical, Pharmaceutical, Chemical fertilizer, Power industry, such as the pipeline under various working conditions, cut off or connect pipe medium.
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Lubricated Plug Valve
The plug inside a lubricated plug valve has a cavity in the middle along its axis. Lubricant chamber at the bottom and the sealant injection fitting at the top ensure the supply of lubricant.
The small check valve below the injection fitting prevents the sealant from flowing in the reverse direction once the sealant is injected into the cavity.Plug surface gets constantly lubricated by the sealant that moves from the center cavity through radial holes into lubricant grooves on the plug surface. Now why we required all this? Many plug valves are of all-metal construction.
The narrow gap around the plug may allow leakage, and if you reduce the gap further, it will increase the friction and plug may get stuck inside the valve body.The lubricant reduces the force required to open or close the valve and allows smooth movement of the plug. It also prevents corrosion of the plug.The lubricant material must be compatible with the fluid of the pipeline. It should not dissolve or wash away by the flow medium as this could contaminate the fluid, and damage the seal between the plug and the body, resulting in leakage. Also, the sealant used must be able to withstand the temperature of the flow medium.Lubricated plug valves are available in the large size range, and they are fit to work in high-pressure temperature services. These valves are subject to less wear and provide better corrosion resistance in some service environments.
Size: NPS 1/2″~36″(DN15~DN900）
Pressure Rating: ASME Class150~1500（PN16~PN260）
Body material：Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel,Low temperature steel
End connection：RF, BW, RTJ
Operation：Manual, Pneumatic, Electric, Hydraulic
Applicable: Petroleum, Chemical, Pharmaceutical, Chemical fertilizer, Power industry, such as the pipeline under various working conditions, cut off or connect pipe medium.
