DBB MONOBLOCK (Ball–Needle–Ball)

DBB Monoblock (Ball–Needle–Ball)

The ELAF DBB Monoblock (Ball–Needle–Ball) valve is a compact, single-body Double Block and Bleed (DBB) solution designed for maximum safety and efficiency. It integrates two ball valves for double isolation and a central needle valve for cavity venting within a single forged body. This monoblock construction eliminates multiple leak paths, reduces weight, and provides a cost-effective alternative to conventional multi-valve assemblies while ensuring superior integrity in critical service applications.

Key Features

  • Monoblock Construction – One-piece body eliminates multiple connections, reducing leak points.
  • Double Block & Bleed Function – Ball valve for positive isolation and needle valve for safe venting.
  • Enhanced Safety – Provides positive isolation and prevents leakage.
  • Compact & Lightweight – Ideal for small-bore pipelines and instrumentation systems.
  • Material Flexibility Available in stainless steel, carbon steel, and other alloys.
Low Pressure Ball Valve

Specification

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, etc.

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

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