Block and Bleed Valves

• F51 Duplex Steel DBB Ball Valve

  This NSV Forged Dual Block and Bleed (DBB) Ball Valve is a compact, high-integrity isolation valve designed for critical oil & gas and petrochemical applications. It features an ASTM A182 F51...

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• Inconel 625 DBB Integral Ball Valve

  Engineered for highly corrosive media and high-pressure conditions, this valve features an Inconel 625 nickel-based alloy forged body with excellent resistance to chloride stress corrosion...

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• F316 DBB Forged Steel Ball Valve

  Engineered for high-pressure and highly corrosive environments, this valve features an ASTM A182 F316 forged stainless steel body with excellent acid and alkali resistance and high-temperature...

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• F51 DBB Forged Steel Ball Valve

  Engineered for extreme high-pressure environments, this valve features a robust ASTM A189 F51 Duplex Stainless Steel body offering exceptional resistance to chloride stress corrosion cracking and...

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• A105 DBB Ball Valve

  This is a Forged Steel A105 DBB (Double Block and Bleed) ball valve with flanged end connections and an integral needle valve as a bleed valve. The DBB design provides simultaneous isolation of...

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• One Piece A105 DBB Ball Valve

  This is a high-integrity, single-body forged ball valve with 2" × 2" flanged ends and reduced bore flow path. Designed for critical isolation in high-pressure service per API 6D.

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• Electric Double Ball DBB Valve

  The NSV electric double ball valve features a body forged from ASTM A105 carbon steel, integrating dual-ball safety isolation with smart electric actuation.

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• Electric Ball Valve With Rotork Actuator

  The NSV electric ball valve features a forged body in A105 or LF2, with a trunnion-mounted design offering double block and bleed (DBB) functionality for service from ambient to cryogenic...

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• Cast Double-Ball DDB Ball Valve

  This DBB valve integrates two independent trunnion-mounted balls and a central bleed port in one cast body, delivering true double block with verified cavity venting. Unlike single-ball DBB...

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• Double Block&Bleed Valves

  A Double Block and Bleed (DBB) valve is an integrated industrial valve assembly that provides two positive isolation barriers and a means to vent or bleed the cavity between them. This...

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• Single Block and Bleed Ball Valve

  Thanks to a SBB ball valve, it is possible to avoid an additional needle valve having the same result reducing costs, overall dimensions and the ability to bleed off the plant, by controlling...

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• Double Block and Bleed Ball Valve

  DBB VALVES assure double isolation function thanks to two obturator inserted in a single body and they provide the bleed function by means of a bleed/vent system located between obturators(body...

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