English

English

home
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.

Contact

Leave a message
Let's solve problems and create values for your projects.
related products
Eccentric segment Ball Valves

Eccentric Segment Ball Valves For Paper Pulp

YFL Eccentric Pneumatic Segment Ball Valve with a v-notch ball has strong shear ability and excellent control characteristics to be suitable for regulating flow in paper & pulp industry.
view more
Bidirectional Seal Knife Gate Valves

Pneumatic Bidirectional Seal Knife Gate Valves

YFL Pneumatic Bidirectional Seal Knife gate valves are applicable for coal in power plant, sewage in wastewater treatment, paper pulp in paper making, food waste in slaughter plants etc.
view more
Ceramic ball valves for paper pulp

Abrasion Resistant Ceramic Ball Valves For Paper Pulp

YFL Abrasion resistant ceramic ball valves are used to solve abrasion piping problem for abrasive paper pulp duo to extreme high hardness of ceramic.
view more
Rising stem ball valves

Side Entry Rising Stem Ball Valves Without Friction

YFL Side entry rising stem ball valve which has no abrasion between sealing face during open and close operation is suitable for viscous slurry with fibers in paper & pulp industry.
view more
F53 Trunnion mounted ball valves

Duplex F53 Forged Steel Floating Ball Valves

YFL Forged steel floating ball valve with forged body and floating ball is widely used to cut off the flow with different working pressure and working temperature.
view more
Pneumatic floating ball valves

ANSI/DIN Pneumatic Cast Steel Floating Ball Valves

YFL Pneumatic cast steel floating ball valve is controlled by pneumatic actuator, solenoid valve and limit switch to turn the ball by 90° to realize open and close.
view more
High performance double offset butterfly valves

High Performance Soft Seal Double Offset Butterfly Valves

YFL High performance soft seal double offset butterfly valves with excellent sealing performance are widely used in petrochemical, power, paper & pulp, wastewater, seawater etc.
view more
Metal seal ball valves

Abrasion Resistant WC9 Metal Seated Ball Valves

YFL Abrasion resistant metal seated ball valves adopt metal seat to replace soft seat to be suitable for abrasive solid particles at high temperature.
view more
Cryogenic globe valves

Cryogenic Globe Valves With Adiabatic Plate

YFL Cryogenic Globe Valves with extended stem and adiabatic plate are suitable for cryogenic applications with working temperature down to -196℃.
view more
leave a message
welcome to YFL
Let's solve problems and create values for your projects.
copyright © 2021 YFL FLOW CONTROL CO., LTD..all rights reserved.

home

products

about

contact