DBB 3 PIECE (Ball–Needle–Ball)

DBB 3 Piece (Ball–Needle–Ball)

The ELAF DBB 3 Piece (Ball–Needle–Ball) valve is a compact, high-integrity solution for positive isolation in critical process systems. This Double Block and Bleed (DBB) design integrates two ball valves with a central needle valve, providing reliable double isolation and safe cavity venting. It ensures maximum safety, leak prevention, and ease of maintenance while reducing weight and installation costs compared to conventional assemblies.

Key Features

  • Double Block & Bleed Design – JTwo ball valves with an integrated needle valve for safe venting.
  • Compact 3-Piece Construction – Saves space and reduces weight.
  • Enhanced Safety – Provides positive isolation and prevents leakage.
  • Corrosion Resistant – Suitable for aggressive environments and long service life.
  • Versatile Materials Available in stainless steel, carbon steel, and other alloys.
Low Pressure Ball Valve

Specification

Business Type
Manufacturer, Exporter, Supplier, Retailer
Valve Type
Double Block and Bleed (Ball–Needle–Ball)
Size
1/4" to 2"
Pressure Rating
Up to 6000 PSI
Thread Type
NPT / BSPT / Metric (as applicable)
Material Option
Stainless Steel 316, Duplex, Super Duplex, Inconel, Monel, Hastelloy-C276, Brass, etc.

Need a custom size or material? Contact ELAF Valves for tailored configurations.

Get a Quote