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Address: NO.720, Suide Road, Jiading District,Shanghai, China.
Ball valve manufacturer  

Double block and bleed ball valve

  • Port size:1/2"~2" (DN15~DN50)
  • Pressure:PN10-PN420 CL150-CL2500
  • Structure:Double block & bleed
  • Medium:Water,steam,oil,etc.
  • Temperature :-29~150℃,-40~450℃
  • Body material:A105 LF2 F304 F316 F316L or others
  • Connection:Flange,Thread is optional
  • Feature:Double block & bleed ball valve
Double block and bleed ball valve introduction
Double block and bleed ball valve is mainly suitable for the instrumentation but is also required as an alternative to the in-line installation of two valves.Thanks to FDouble block and bleed ball valve, it is possible to have the same result reducing costs,  overall dimensions and the ability to bleed off the plant, by controlling a potential leakage of the plant.Double block and bleed ball valve is recommended for any pressure class and ensure long-lasting seal.They can be supplied both in the Trunnion and in the Floating version.

Double block and bleed ball valve has 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,Double block and bleed 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 Double block and bleed ball valve saves the installation procedures,reduces pressure in the pipe system,facilities instrument cleaning and maintenance and lowers the cost.

Double block and bleed ball valve Performance
Threaded units available in 6,000 & 10,000 Psig ratings
Threaded connections from ¼” through 1”
Flanged connections from ½” to 2”
Flange ratings 150# - 2500#
Wide range of materials of construction available
NPT threads standard, BSP available
PTFE packing or graphite packing

Double block and bleed ball valve feature
EEMUA 182, ASME B16.34 Design
Full Bore And Reduced Bore Design
Flanged, Welding, Hub, Threaded Ends
Anti Blow‐Out Stem
Anti Static Device
Fire Safe Design

Double block and bleed ball valve application
Double block & bleed
Level Measurement
Pressure Measurement
Chemical Injection
Flow Measurement

Our product range:
Shanghai Huixuan is ball valve factory, China Ball valve manufacturer mainly produce pneumatic ball valve,electric ball valve,floating ball valve,trunnion ball valve,segmented ball valve,high pressure ball valve,cryogenic ball valve,3 way ball valve,PTFE lined ball valve,ceramic ball valve,DBB ball valve,cast steel ball valve,stainless steel ball valve,forged steel ball valve,fully welded ball valve, top entry ball valve,italy water ball valve,direct mount ball valve,plastic ball valve and other ball valves.