Metallum Overseas supplies modular double block and bleed (DBB) valves designed to provide reliable isolation and pressure control in critical pipeline and process applications. A DBB valve combines two independent isolation points with an integrated bleed arrangement, allowing the isolated section between the two seats to be depressurized, monitored, or drained when required.
As a modular double block and bleed valve supplier in India, Metallum Overseas supplies DBB valve solutions for oil and gas production, natural gas transmission, petrochemical and chemical processing, refining, power generation, and other industrial applications where dependable isolation and controlled pressure release are important.
Our modular DBB valves can be configured with soft or metal seats, double piston or combination seat arrangements, anti-static devices, anti-blowout stems, emergency sealant injection, low-emission packing, and manual or actuated operating systems according to pressure, temperature, media, valve size, and project requirements.
Metallum Overseas supplies modular double block and bleed valves for applications where two independent barriers are required within a single valve arrangement. The integrated bleed connection provides a means of checking or relieving pressure in the cavity between the isolation seats, supporting safer maintenance and isolation procedures.
Modular DBB valves can help reduce the space and number of individual components required compared with separate valve arrangements. They are particularly useful in applications involving system isolation, pressure measurement, instrument drain, chemical injection, sampling, and other process connections where compact isolation is required.
Depending on the application, DBB valves can be supplied in accordance with API 6D, API 6A, ASME B16.34, ISO 14313, ISO 10423, and ISO 17292, subject to the selected valve design and project specification.
Our modular DBB ball valves are designed to provide two independent sealing barriers with an integrated bleed function. When the valve is closed, the space between the seats can be connected to a bleed or drain arrangement to verify isolation or release trapped pressure according to the valve configuration.
DBB ball valves can be supplied with soft or metal seats depending on the process medium, pressure, temperature, and required shutoff characteristics. Hardfacing can also be provided on selected ball and seat surfaces for applications where additional resistance to wear or erosion is required.
Our high-pressure modular DBB ball valves are suitable for demanding pipeline and process applications where reliable isolation is required under elevated pressure. The valve body, seats, sealing components, and operating mechanism can be selected according to the required pressure class and operating conditions.
Depending on the valve design and project requirements, modular DBB valves can be supplied for pressure classes from ASME Class 150 to Class 2500. The applicable pressure and temperature limits depend on valve size, body and trim materials, seat construction, pressure class, and process conditions.
For modular double block and bleed (DBB) valves requirements, technical specifications, pricing, or project enquiries, contact Metallum Overseas at info@metallumoverseas.com.
| Valve Design: | Modular double block and bleed ball valve designed according to API 6D, API 6A, ASME B16.34, ISO 14313, ISO 10423, ISO 17292, and customer-specific requirements |
| Size Range: | NPS 1 to NPS 12 (DN 25 to DN 300), subject to valve design and project requirements |
| Pressure Rating: | ASME Class 150 to Class 2500 |
| Temperature Range: | -50°C to 200°C (-58°F to 392°F), depending on materials, seat design, pressure rating, and operating conditions |
| Face-to-Face: | As per applicable API 6D requirements |
| End Connections: | RF and RTJ flanged connections as per ASME B16.5 and ASME B16.47; butt-welded ends as per ASME B16.25; socket-welded connections as per ASME B16.11 |
| Body Design: | Forged or cast construction with bolted two-piece or three-piece body configurations |
| Ball Design: | Ball construction selected according to valve size, pressure class, sealing arrangement, and application requirements |
| Seat Design: | Soft or metal seated construction with hardfacing on selected ball and seat surfaces; double piston and combination seat arrangements available |
| Bore Design: | Full-bore or reduced-bore configurations according to flow requirements and valve design |
| Bleed Arrangement: | Integrated bleed connection for cavity pressure monitoring, pressure release, draining, or isolation verification according to valve configuration |
| Operator: | Manual wrench or gear operator with padlocking; pneumatic, hydraulic, or electric actuation available |
| Double Block & Bleed Design: | Provides two independent isolation barriers with a bleed arrangement between the sealing points for pressure monitoring or controlled pressure release |
| Compact Modular Construction: | Combines isolation and bleed functions into a compact valve arrangement where space and component reduction are important |
| Soft or Metal Seats: | Seat construction can be selected according to pressure, temperature, process medium, and required shutoff performance |
| Double Piston Seats: | Double piston seat arrangements can be provided according to the required valve configuration and sealing requirements |
| Combination Seats: | Combination seat arrangements can be selected for specific pressure, temperature, and process conditions |
| Anti-Static Device: | Anti-static construction can be incorporated to provide electrical continuity between applicable valve components |
| Anti-Blowout Stem: | Anti-blowout stem construction helps retain the stem within the valve body under applicable operating conditions |
| Emergency Sealant Injection: | Emergency sealant injection points can be provided at seat and stem areas for suitable valve configurations |
| Low Fugitive Emission: | Low-emission stem packing arrangements can be supplied according to project requirements |
| Secondary Sealing: | Secondary sealing arrangements including graphite configurations can be provided according to valve design and service requirements |
| CRA Overlay: | Corrosion-resistant alloy overlay can be provided on dynamic sealing areas or selected wetted components for suitable applications |
| Extended Bonnet: | Extended bonnet arrangements can be supplied for selected low-temperature or high-temperature applications |
| Actuation: | Manual, pneumatic, hydraulic, and electric operating options can be selected according to valve size, torque, and automation requirements |
The seat and sealing arrangement of a modular double block and bleed valve plays an important role in achieving reliable isolation and controlled cavity pressure management. Metallum Overseas can supply different seat configurations according to the operating medium, pressure, temperature, valve size, and required shutoff performance.
| Soft Seat: | Suitable for selected applications where resilient sealing materials are compatible with the process medium, temperature, and pressure conditions |
| Metal Seat: | Suitable for demanding applications involving elevated temperatures, abrasive service, erosion, or other conditions where metal-to-metal sealing is required |
| Double Piston Seat: | Seat arrangement designed to provide the required pressure response and sealing characteristics according to the selected DBB valve design |
| Combination Seat: | Customized seat arrangements can be supplied for selected pressure, temperature, media, and project requirements |
| Hardfaced Ball & Seats: | Selected ball and seat surfaces can be hardfaced to improve resistance to wear and erosion in suitable services |
| CRA Overlay: | Corrosion-resistant alloy overlay can be applied to selected dynamic sealing areas or wetted components where additional corrosion resistance is required |
| Graphite Sealing: | Graphite secondary sealing arrangements can be provided for suitable applications and project specifications |
| Stainless Steel: | TP 304, 304L, 304H, 310, 310S, 316, 316L, 316Ti, 317, 317L, 321, 321H, 347, 347H, 904L, 254 SMO |
| Duplex Steel: | UNS S31803, UNS S32205 (2205) |
| Super Duplex Steel: | UNS S32750, UNS S32760 |
| High Nickel Alloys: | Hastelloy C22, Hastelloy C276, Hastelloy B2, Inconel 600, Inconel 601, Inconel 625, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, Nickel 200, Nickel 201 |
| Monel: | Monel 400, Monel K500 |
| Alloy: | Alloy 20 |
| Titanium: | Titanium Grade 2, Titanium Grade 5, etc. |
| Other Alloys: | Low Temperature Carbon Steel, Low Alloy Carbon Steel, ASTM A350 LF2 and additional alloy and corrosion-resistant materials can be considered according to valve design and project requirements |
| Inspection & Testing: | Inspection and testing can be carried out in accordance with API 6D, ISO 5208, API 598, and applicable project requirements |
| Hydrostatic Testing: | Hydrostatic shell and seat testing can be performed according to the applicable valve standard and customer specifications |
| DBB Function Testing: | Double block and bleed functionality can be verified according to the valve design and applicable inspection requirements |
| Fire Safety: | Fire-safe design and testing can be provided according to API 607 requirements where specified |
| Fugitive Emission: | Fugitive emission compliance and testing can be provided according to ISO 15848 requirements for suitable valve configurations |
| SIL Certification: | SIL 3 certification according to IEC 61508 can be provided for applicable valve configurations and project requirements |
| PED: | Compliance with PED 2014/68/EU can be provided according to applicable valve design and project requirements |
| Non-Destructive Testing: | NDT and additional inspection requirements can be provided according to customer specifications and applicable standards |
Metallum Overseas supplies modular double block and bleed valves for applications where dependable isolation and controlled cavity pressure management are required. The DBB arrangement provides two isolation barriers with an integrated bleed function in a compact valve configuration.
A modular DBB valve can combine isolation and bleed functions into a single compact arrangement. This can help reduce installation space and simplify piping layouts compared with using multiple separate isolation valves, depending on the application.
Our DBB valves can be supplied with soft seats, metal seats, double piston seats, combination seats, hardfaced ball and seat surfaces, and suitable secondary sealing arrangements. The configuration can be selected according to pressure, temperature, process medium, and shutoff requirements.
Material options can include low-temperature carbon steel, low-alloy carbon steel, stainless steel, duplex steel, super duplex steel, nickel alloys, titanium, and other corrosion-resistant materials. Material selection depends on the process medium, temperature, pressure, corrosion conditions, and project specifications.
Depending on valve size and application requirements, modular DBB valves can be supplied with RF, RTJ, butt-welded, and socket-welded connections according to applicable dimensional and piping standards.
Metallum Overseas can supply modular DBB valves with manual wrench or gear operators as well as pneumatic, hydraulic, or electric actuation. The operating system can be selected according to valve size, operating torque, accessibility, and automation requirements.
Modular DBB valves can be supplied with inspection and testing requirements including API 6D, ISO 5208, API 598, API 607, ISO 15848, IEC 61508, and PED, depending on valve configuration, certification requirements, and customer specifications.
Modular double block and bleed valves are suitable for critical isolation applications in oil and gas, natural gas, petrochemical, chemical processing, refining, power generation, and other industrial process systems where reliable isolation and pressure management are important.
Metallum Overseas supplies modular DBB valves for pipeline and process applications where compact isolation, pressure monitoring, draining, or controlled bleeding is required.
A modular double block and bleed valve is a valve arrangement that provides two independent isolation barriers with a bleed function between them. The bleed connection can be used to release or monitor pressure in the cavity between the isolation seats according to the valve configuration.
The primary purpose of a DBB valve is to provide reliable isolation while allowing pressure between the two isolation barriers to be monitored or released. This can be useful during maintenance, inspection, instrument isolation, pressure verification, and other controlled process operations.
Double block and bleed provides two isolation barriers together with a bleed facility between them. The bleed arrangement allows the cavity between the two barriers to be depressurized or monitored, depending on the valve design and application.
Modular DBB valves can be supplied in pressure classes ranging from ASME Class 150 to Class 2500, depending on valve size, body material, design, seat construction, and project requirements.
Modular DBB valves can be supplied in sizes from NPS 1 to NPS 12 (DN 25 to DN 300), subject to the selected valve configuration, pressure class, materials, and application requirements.
Material options may include low-temperature carbon steel, low-alloy carbon steel, stainless steel, duplex steel, super duplex steel, nickel alloys, titanium, and other corrosion-resistant materials. The final material selection depends on pressure, temperature, process medium, corrosion conditions, and project specifications.
Yes. Modular DBB valves can be supplied with soft or metal seats. Double piston and combination seat arrangements can also be provided according to the required valve design and operating conditions.
Depending on the valve design, modular DBB valves can be supplied with RF and RTJ flanged connections, butt-welded ends, and socket-welded connections according to applicable standards and customer requirements.
Yes. Modular DBB valves can be supplied with manual, pneumatic, hydraulic, or electric operators. The operating arrangement depends on valve size, operating torque, automation requirements, installation conditions, and project specifications.
Depending on the selected valve design and application, modular DBB valves can be designed according to API 6D, API 6A, ASME B16.34, ISO 14313, ISO 10423, and ISO 17292. Testing and certification requirements can include API 6D, ISO 5208, API 598, API 607, ISO 15848, IEC 61508, and PED where applicable.
Modular DBB valves are used in oil and gas production, natural gas transmission, petrochemical and chemical processing, refining, power generation, instrument isolation, pressure measurement, chemical injection, sampling, and other industrial process applications.
Yes. Emergency sealant injection can be provided at suitable seat and stem locations for applicable DBB valve configurations where specified by the project.
Yes. Low fugitive emission stem packing can be provided for suitable valve configurations where required by the application or project specification.
To request a quotation, please share the required valve size, pressure class, operating temperature, process medium, material, end connection, seat requirement, bleed arrangement, and operating system. Contact Metallum Overseas at info@metallumoverseas.com for technical assistance and project-specific requirements.
Looking for modular double block and bleed valves for your project? Share your valve requirements with Metallum Overseas at info@metallumoverseas.com for a suitable valve configuration and quotation.
For technical drawings, material certificates, inspection requirements, or a project-specific quotation, please contact Metallum Overseas at info@metallumoverseas.com, or reach out through our contact page.
Metallum Overseas provides Modular Double Block & Bleed (DBB) Valve at reasonable prices in the market. You can Contact us to get the updated price list of Modular Double Block & Bleed (DBB) Valve. Our prices are best for all types of Modular Double Block & Bleed (DBB) Valve.
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