FLUITEK ORSENIGO Double Block and Bleed

Design Features

Double Block and Bleed Ball Valves are aimed to get a double barrier on the piping, and bleed the fluid trapped between the two balls from a dedicated drain line.
Valve design can be either Trunnion or Floating type, anti blow-out stem and typically SPE seat design. Drain port is normally provided with a floating ball valve, to be fitted with Final User drain line. Valve seats can be soft or metal to metal hard-faced.

Main reference codes:
Standard design in accordance with API 6D / ASME B16.34 / API 6A.
Antistatic design as per API 6D and ISO 17292.
Fire Safe according to BS6755 / API 6FA / API 607, since each sealing point is provided by a secondary fire-safe seal in graphite. Valve soft seats also are provided with secondary metal-to-metal seal in case of fire.
Double Block and Bleed ball valves are typically manual operated, but can be equipped also with an actuator (electric, pneumatic, hydraulic).

The following optional features are available:
Locking device.
Emergency stem seal injection;
Emergency seats sealant injection;
Weld overlay (316 or Inconel 625) on dynamic sealing areas or in all wetted parts
Removable supports;
Certified lifting devices;
Seal welded fittings.

 

Industries

Oil & Gas

 

Materials

Body construction can be either forging or centrifugal casting. Wide range of materials: carbon steels, austenitic or martensitic SS, duplex-superduplex SS, nickel-based alloys.

 

Pressure and Temperature

 

Size

 

 

Connection

Valve ends can be flanged (RF, FF, MF or FF, RTJ), according to ASME B16.5 (up to 24”) or ASME B16.47 (26” and above), Butt-Welding according to ASME B16.25, or Hub, according to customer Requirements.

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