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Two Balls DBB Floating Type Ball Valve / Stainless Steel Ball Float Valve

Categories Floating Type Ball Valve
Brand Name: Kelite Valve
Model Number: 1/2"-12", CL150-2500
Certification: API, ISO, CE, GOST, TS, BS1873, BS5351, API 6D,600,602,609, ASME B16.34, API 6FA, API607 etc
Place of Origin: China
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 3000-8000PCS per month
Delivery Time: 30-60days
Packaging Details: Plywood packing or fumigation packing
Size:: NPS 1/2"~12"
Pressure Rating:: Class 150~2500
Material:: A105,LF2,F304, F316,F304L,F316L,F22,etc
Design & Manufacturing Standard:: API 608,API 6D,BS 5351,ASME B16.34
Face to Face:: ASME B16.10, API 6D, BSEN 558
End Connection:: ASME B16.5, BSEN 1092
Test and Inspection:: ISO 5208, API 6D, BSEN 12266, API 598
Operation Method:: Manual ,Worm Gear, Electric Actuator, Pneumatic Actuator
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Two Balls DBB Floating Type Ball Valve / Stainless Steel Ball Float Valve

Two balls DBB floating ball valve of 1/2"-12" CL150-2500 API 6D, 608 desgin

The DBB ball valve is the abbreviation for the double block and bleed ball valve. Some of DBB valves have two balls and one or two needle valves,the two ball valves can opend and closed the medium and two needle valves can discharge pressure of the valves,the ball valve is designed to replace the complex form of the connection of multiple valves in traditional pipes,so as to reduce leakage points in the system and realize fast discharging and closing. The DBB ball valves saves the installation procedures,reduces pressure in the pipe system,faciliates instrument cleaning and maintence and lowers the cost.

Two independently operable 5.0mm bore globe style needle valves for isolation service with an intermediate 5.0mm bore globe style needle valve for venting service. Metal seating features as standard for all valves.

The integrally forged one piece block & bleed assemblies for primary isolation of pressure take-offs, where the valve is directly mounted to the vessel or process pipe. Instruments may be directly mounted to the valves outlet or alternatively remotely mounted with gauge line/impulse pipe work.

  • Double Block &Bleed
  • Level Measurement
  • Pressure Measurement
  • Chemical Injection
  • Sampling
  • Flow Measurement


  • ½ -inch NPT threaded female outlet as standard to ANSI/ASME B1.20.1.
  • ½ NPT threaded female vent connection to ANSI/ASME B1.20.1.
  • Material Thickness to ANSI B16.34
  • ANSI B16.5 flanged inlet connection, ½ to 2 inch sizes. 150 lbs rated to 2500 lbs rated.
  • API flanged inlet connections sizes to 2 1/16 inch. 3000psig, 5000psig & 10000psig rated.

Globe Style Needle Value Gland Packing Material.

Standard valves are offered with Graphite. PTFE is also available as an optional.

Design characteristics :


Floating ball valves present a particular problem with the build up of static electricity around the ball. All Kelite ball valves have anti-static devices which provides contact between stem and ball, and stem and body to eliminate static electricity.


In the event of a fire the valve is required to make a downstream seal. Even after the disintegration of the RTFE seats, KELITE ball valves have an excellent metal to metal seal. Special attention has been paid to the mechanical strength and sealing efficiency of the central flanged joint in the valve body.


The PTFE gasket packing acts as a primary seal for the unibody ball valves. The secondary seal has been made out of flexible graphite, a material with extremely good resistance to fire conditions.


The combination of stem packingand o-rings guarantee zero emissions even at a low pressure. The primary seal is made out of flexible graphite, a material with extremely good resistance to fire conditions. The anti-blow out stem is inserted from inside the valve body.

Technical parameters:

Product descriptionDBB floating ball valve of 1/2"-12" CL150-2500 API 6D, 608 desgin
ModelForging floating ball valve
Nominal diameterNPS 1/2~NPS 12
Operating temperature-46℃~121℃
Operating pressureCLASS 150~CLASS 2500
MaterialA105,LF2,F304,CF8M,F316, etc.
Design standardAPI 608,ISO 17292,BS 5351
Structural lengthASME B16.10
Connecting endASME B16.5,ASME B16.25
Test standardAPI 598
Operation method/td>Handle, worm, motor-drive unit, pneumatic drive unit
Application fieldsWater, petroleum and natural gas
Other remarks 1A locking device is provided to prevent misoperation of valve.
Other remarks 2Valve stem flyout prevention structure design, to prevent accident due to flyout of valve stem caused by abnormal pressurization in the chamber
Other remarks 3Fireproof and antistatic design
Other remarks 4Full bore of valve convenient for pigging, of small flow resistance and high flow capacity

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