DBB 70D – Compact and Precise DBB Valve for Instrumentation and Sampling Systems

 The DBB 70D is a compact version of the standard double block and bleed valve, optimized for precision instrumentation, calibration, and sampling systems. Where space is limited but operational accuracy is paramount, the DBB 70D excels.

This valve offers two isolation mechanisms and a bleed function in a single forged body, ensuring safe and efficient fluid control in high-pressure environments. Built for reliability and precision, the DBB 70D is ideal for mounting in panels, control skids, or process loops.


Technical Overview

  • Pressure Rating: Up to 70 bar (1000 psi)

  • Design: One-piece forged body with minimized dead volume

  • Connection Types: NPT, BSP, compression fittings, or flanged

  • Sealing System: Graphite or PTFE packing, soft seat or metal seat options

  • Fire-Safe and Emission-Compliant: Certified to API 607 and ISO 15848

Key Benefits

  • Leak-Free Performance: Dual isolation seals maintain system integrity during instrument removal

  • Quick and Easy Operation: Especially suited for frequent calibration and sampling tasks

  • Space-Saving: Slim profile fits tightly packed control panels and field enclosures

  • Reliable in Harsh Conditions: Resistant to vibration, thermal variation, and pressure spikes

Application Scenarios

  • Skid-Mounted Analytical Systems

  • Pressure Transmitter Isolation

  • Sampling in Pharmaceutical or Petrochemical Lines

  • Control Room Calibration Panels

DBB 70D vs. Traditional Solutions

Traditional setups use multiple valves and fittings to achieve isolation and bleeding. The DBB 70D integrates all necessary functions into a single valve body, cutting down:

  • Installation time

  • Maintenance complexity

  • Risk of misalignment or leak

Designed for reliability and compactness, the DBB 70D is ideal for modern process environments demanding high accuracy and minimal system disturbance. With its low profile and robust engineering, it meets the evolving needs of instrumentation and process control systems.

Freture Techno Pvt. Ltd. supplies high-quality DBB 70D valves that meet rigorous industry and environmental standards, offering dependable solutions for control and calibration reliability.

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