Double Block and Bleed Ball Valve

Double Block and Bleed Ball Valve

Category

Double block and bleed ball valves provide compact dual isolation with a central bleed for secure pipeline service.

Double block and bleed ball valves provide two independent sealing barriers with a bleed point between them, allowing trapped cavity pressure to be released or checked before downstream work begins. This arrangement improves isolation verification while reducing the number of separate valves, fittings and potential leak paths required in a conventional assembly. For critical pipeline isolation, a Double Block and Bleed Ball Valve Manufacturer in USA needs to provide a design that maintains dependable sealing across repeated operating cycles while keeping the overall installation compact. The valve is particularly useful where operators need greater confidence that the isolated section has been separated from upstream pressure before inspection, maintenance or process intervention.

Technical Specifications

Parameter

Specification

Product Type

Double Block and Bleed Ball Valve

Size Range

DN15-DN200

Pressure Rating

ASME Class 150-2500

Material

Carbon Steel, Low-Temperature Carbon Steel, Stainless Steel, Duplex Stainless Steel, Super Duplex Stainless Steel

Standards

API 6D, API 608, ISO 17292, ASME B16.34, API 598, ISO 15848

Grades

ASTM A105; ASTM A350 LF2; ASTM A182 F304 / F316 / F51 / F53 / F55

Ball Arrangement

Floating, Trunnion Mounted

Body Construction

Integral Body, Split Body, End Entry

Isolation Configuration

Dual Isolation with Central Bleed

End Connections

Flanged, Butt Weld, Socket Weld, Threaded

Operation

Lever, Gear, Pneumatic, Electric

Showing all 1 products

Double Block and Bleed Ball Valve

Double Block and Bleed Ball Valve

Double Block and Bleed Ball Valve Body: A105, F304, F316, F316L, F51 Bonnet :A105 Ball: A105, F304, F316, F316L, F51 Seat: F316L Stem: F51 Seat Ring: F51 O Ring: VITON Thrust Washer: PTFE Bearing: PTFE+SS304 Gasket: SS304+Graphite Body Cap: A105 Nominal Diameter: DN10 to DN400 Nominal Pressure: Class900 to Class2500 Temperature Range: -196°C to 650°C Ball Valve Design: API6D, BS5351, ASME B16.34 Face to face: ASME B16.10, AP6D End Flange: ASME B16.5/ASME B16.47 Buttweld End: ASME B16.25 Fire Safety: API607, API6A Inspection and test: API 598, API6D Dimension Class900 Unit: mm DN Φq L ΦD ΦK ΦR B f ΦP E F N-Φ 10 252 1380 545 469.9 362 69.9 7.92 323.9 7.92 11.91 16-38.1 12 303 1550 610 533.4 419 79.4 7.92 381 7.92 11.91 20-38.1 20 471 2050 855 749.3 648 108 12.7 584.2 12.7 19.84 20-54 24 570 2520 1040 901.7 772 139.7 15.88 692.1 15.88 26.97 20-66.7

DETAILS
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