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Hydraulic slow closing LLDPT Lined check valves
Oil & Gas

Three Piece Body Cast Steel Trunnion Mounted Ball Valves

YFL Three-piece body cast steel trunnion mounted ball valve with cast body and trunnion mounted ball are widely used in Oil & Gas, Chemical, Power, Paper & Pulp etc.
  • Size:

    2''-56'', DN50-DN1400
  • Pressure:

    150lbs-2500lbs, PN10-PN420
  • Body:

    WCB, LCB, CF8, CF8M, 4A, 5A
  • Seat:

    PTFE, Nylon, Devlon, PEEK, PPL, Metal seat
  • Face to Face:

    ASME B16.10
  • Test:

    API 598, API 607
  • Connection Ends:

    Flanged ends, BW ends
  • Design standards:

    API 6D
  • products details

YFL Cast steel trunnion mounted ball valves are used as on-off valves widely due to excellent sealing performance and fast open and close. The trunnion ball is rotated by 90° to open or close the trunnion mounted ball valve. 

YFL cast steel trunnion mounted ball valves technical features:

1. Two-pieces cast steel body for size 12'' and smaller, three-pieces cast steel body for sizes larger than 12'';
2. Trunnion mounted ball,spring loaded seat, anti-static spring, anti-blow out stem;
3. Full bore and reduced bore available, Flanged ends and BW ends available, Soft seal and metal seal available;
4. V-PTFE live loading as standard packing and graphite packing for high working temperature;
5. Double block and bleed, the medium entrapped can be discharge through vent valve and bleed valve to aovid overpressure in the valve cavity;
6. Fire safe according to API 607, BS 6755, Secondary metal to metal seal acts as backup when the primary soft seal is destroyed by fire.


Large size LCB cast steel trunnion mounted ball valves


Three pieces body large size Cast steel trunnion mounted ball vaves


Large size cast steel trunnion mounted ball valves


Why Choose YFL?

1. Experienced in providing best solutions according to various sever working conditions to solve problems
2. Strict quality control from raw materials, machining to pressure test and function test
3. Professional technical support and fast response trouble shooting
4. Approved & Registered vendor of Glencore & Umicore
5. Successful cases and reference list available
6. Customizable, Flexible,  Short delivery time


Testimonials from Glencore in Mining industry

"We are very happy with the results so far, and the valves seem to be top quality.
You must understand that this factory has some of the world's toughest conditions with regards to abrasive and corrosive solutions. We dissolve metals and most products and suppliers we tested in our applications failed. "  


YFL for 誉丰利 means benefiting from reputation.

We cast brand and forge reputation by quality and service.

We focus on your satisfaction and our responsibility.

Let‘s solve problems and improve process for your projects.

For more solutions, please visit www.YFLvalve.com and contact YFL at sales@YFLvalve.com.

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