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Hydraulic slow closing LLDPT Lined check valves
Oil & Gas

API 6D Large Size Full Opening Swing Check Valves

YFL API 6D Large size full opening swing check valve is used in long distance Oil & Gas transportation pipeline to prevent back flow and protect pipeline equipments.
  • Size:

    2''-40'', DN50-DN1000
  • Pressure:

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

    WCB, LCB, CF8, CF8M, WC6, WC9, Duplex stainless steel 4A, 5A
  • Face to Face:

    ASME B161.0, EN558
  • Flange:

    ASME B16.5, EN109201
  • Test:

    API 598
  • Connection Ends:

    Flanged ends, BW ends
  • Design standards:

    API 6D
  • products details

YFL API 6D full bore swing check valve can be fully open in long distance pipeline for Oil & Gas transportation with larger opening degree and flow rate than swing check valve according to BS 1868.

YFL API 6D full bore swing check valve technical features:

1. Bolted bonnet or pressure seal bonnet available
2. Full opening, full bore, suitable for pigging
3. Lever with counter weight available
4. Hydraulic control available for slow closing
5. Large size and various kinds of materials available

API 6D Large size full opening swing check valves


API 6D Large size full opening swing check valves with counter weight


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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