M Metal Tubes India Pvt. Ltd. manufactures precision-engineered Double Block & Bleed (DBB) Valves designed to deliver superior safety, zero leakage, and space efficiency. By combining two block valves and a bleed valve in one compact unit, these valves ensure safe maintenance and pressure release in critical applications.

Technical Specifications

• Size: 1/2″ – 6″
• Class: #150 – #2500
• Type: Single Block and Bleed (SBB) / Double Block and Bleed (DBB)
• Design Standard: API 6D
• Testing Standard: API 598 / EN 12266
• Materials of Construction: Stainless Steel (SS), Duplex Steel, Inconel, Hastelloy, Monel, Titanium

Description

The Double Block & Bleed Valve (DBB) is designed to provide secure isolation and safe venting of process fluids in demanding environments. This valve integrates two isolation barriers and a central bleed system within a single assembly, eliminating the need for multiple valve installations. It improves operational efficiency, minimizes leak points, and enhances safety during system maintenance and calibration.

Material Options

• Stainless Steel (SS 304, SS 316, SS 316L): Corrosion resistance and mechanical strength.
• Carbon Steel: High durability and cost-effectiveness for industrial use.
• Alloy Steel: Enhanced performance under high pressure and temperature.
• Duplex & Super Duplex Stainless Steel: Superior resistance to aggressive media.

Standards & Compliance

• ASME B16.34 – Flanged, Threaded & Welding End Valves
• API 598 – Valve inspection and testing
• API 6D / API 6A – Pipeline and wellhead equipment standards
• MSS-SP-99 – Instrumentation valves
• ANSI/ASME B1.20.1 – Pipe threads standard
• ASTM / DIN / EN – As per industry and project requirements

Applications

• Oil & Gas Processing
• Petrochemical & Chemical Plants
• Power Generation
• Water & Wastewater Treatment
• Pharmaceutical & Food Industries
• Offshore & Subsea Applications

Why Choose M Metal Tubes India Pvt. Ltd.?

With over 40 years of expertise, M Metal Tubes India Pvt. Ltd. is a trusted name in industrial valve manufacturing. Our Double Block & Bleed Valves are engineered for superior performance in high-pressure systems, ensuring safety, reliability, and easy installation. Built from premium materials and rigorously tested, our DBB valves minimize system downtime and ensure long-term operational integrity.

Contact Us

To learn more or request a custom configuration, contact M Metal Tubes India Pvt. Ltd. today. We deliver durable and cost-effective valve solutions tailored to your process requirements.