You Are Here: Home

Products

Ball Valves

Forged Steel Double Block & Bleed Ball Valve

Forged Steel Double Block & Bleed Ball Valve

    The YFL forged steel double block & bleed ball valve has a integral forged body, two balls, a needle globe valve as discharge valve between the two balls and three operating switches. It is designed to replace some valves with complicated connection in traditional pipeline.

    The YFL DBB ball valve can reduces the leakage points and realize quick discharge and close.

Inquiry Now
  • Features
  • Specification

  • The YFL Double block and double bleed ball valve saves installation space, simplify installation procedure;
  • The YFL DBB ball valve reduces connections and leakage points;
  • Convenient for instrument cleaning and maintenance;
  • Reduce purchasing cost and maintenance cost;
  • Realize functions of two globe valve and one discharge valve;
  • Quadruple seal and double assurance;
  • Quick discharge and close;
  • Two balls can be opened or closed meanwhile;
  • One ball open and one ball close to realize double block and bleed;
  • Locking device ensures safe operation;
  • Floating ball and trunnion mounted ball structure;
  • Full bore and reduced bore structure;
  • Soft seal or metal seal structure;
  • Cavity pressure self relief;
  • Fire safe, anti-static and anti-blowout stem design.

DBB ball valves2500lbs 1 1/2 double block and bleed ball valves2500lbs 1 1/2 double block and bleed ball valves

Product range:

  • Size: 1/2"36" (DN15900)
  • Pressure rating: Class 1502500 (PN16PN420)
  • End connection: RF RTJ BW
  • Bore: Full bore reduced bore
  • Body materials: A105 F304 F316 F304L F316L etc.
  • Ball materials: A105+ENP F304 F316 F304L F316L etc.
  • Seat materials: PTFE RPTFE NYLON PPL PEEK or metal to metal seal etc.
  • Operation: Bare stem wrench gear electric pneumatic electro-hydraulic gas over oil actuator

Technical standards:

  • Design: API 6D ASME B16.34
  • Face to Face: ASME B16.10
  • BW ends: ASME B16.25 ASME B31.8
  • Flanged ends: ASME B16.5 ASME B16.47
  • Wall thickness: ASME B16.34
  • Fireproof test: API 607 API 6FA
  • Test and inspection: API 598 API 6D
  • Pressure and temperature rating: ASME B16.34
  • Materials: NACE MR 01-75