Hydraulic slow closing LLDPT Lined check valves
Paper & Food

Double block and bleed Twin Ball Valves

YFL Double block and bleed twin ball valves are designed with one integral forged body and two ball to reduce lekage point and simplify the installation and connection of many valves.
  • Size:

    2''-48'', DN50-DN1200
  • Pressure:

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

    A105, LF2, F304, F316, F51, F53, 904L
  • Flange:

    ASME B16.5, EN109201
  • Test:

    API 6D, API 607, API 6FA, ISO 15848
  • Design standards:

    API 6D, ISO 17292
  • Leakage Class:

    Class VI
  • Medium:

    Water, Oil, Gas
  • products details

YFL DBB Twin ball valves are used to replace many valves with complicated installation and connections. With only one integral forged body, the leakage point is eliminated, the installation space is saved, and the valve cost and maintenance cost is reduced.

YFL Double block and bleed twin ball valves technical features:

1. One integral forged body without casting defect and leakage point
2. Two trunnion mounted ball for high pressure
3. Double block and bleed, trapped medium and overpressure can be discharged automatically 
4. Seat structure can be single piston effect, double piston effect(DIB-1), DIB-2 
5. Emergency grease injection system for valve seat and stem
6. Anti-blow out stem, anti-static spring, fire safe according to API 607, API 6FA or BS6755
7. Excellent sealing performance, long working life, convenient maintenance
8. Save installation space, valve cost and maintenance cost

F316L Double block and bleed DBB ball valves

F51 Double block and bleed DBB 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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