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Blakeborough®

BV990 & BV992 Cage Trim Valves Class 900lb and above

Suitable to general, medium, and severe service applications for low-medium pressure rating, cage guided, quick change trim, available in all configurations.

The cage guided design can accommodate several trims with increasing performance in controlling noise, erosion, and vibration. Trims are interchangeable within the same pressure boundary design allowing ease of upgrade. No trim components are welded or screwed in the body ensuring simple, low cost, in line maintenance.

Additional features available are: soft seating for class VI shut off, downstream silencer for noise reduction, seat diffuser for body protection, balanced pilot for high tight shut off performance, live loaded packing for prolonged high emission protection, extended bonnet for cryogenic and high temperature applications.

KEY FEATURES & BENEFITS

  • Body: High integrity and rugged design

  • Optimized for high flow capacity

  • Same body can accommodate all possible trims for increased erosion, noise, vibration prevention

  • In line globe, angle globe, Z-globe, Y-globe configurations are available

  • All components are quick change allowing simple, inexpensive in-line maintenance

TRIM CHARACTERISTICS

  • Linear

  • Equal Percentage

  • Quick Opening

  • Intermediate

END CONNECTIONS

  • Flanged (all current standards)

  • Butt weld

  • Socket weld

  • Screwed

  • Clamped ends – all types

APPLICATIONS

  • All power applications (except desuperheating)

  • All Oil & Gas applications

  • All other industrial applications

DESIGN STANDARDS

  • ASME B16.34

  • EN 12516-1 / 2

  • IEC 60534-4 (Formally FCI 70-2)

  • ASME B16.25

  • ASME B16.5

  • NACE MR-01-75

  • BS1560

  • BS4504

  • ASME BPVC Section III

  • NQA-1

  • 10CFR50 App. B

  • 10CFR50 Part 21

  • RCC-E

  • RCC-M

  • CSA Z299

  • ISO 9001

  • ISO 14001

  • PED

  • ATEX

  • ISO 15848-1

DESIGN RATINGS

  • ASME B16.34 900 – 4500#

  • PN 150 – 420

  • API6A 5,000 – 15,000

MATERIALS

  • Carbon steel – low temperature carbon steel

  • Stainless steel; Grade 316/304/347, 1.1/4% chrome moly. steel

  • Grade WC6, 2.1/4% chrome moly.steel

  • Grade WC9 – Chrome moly Vanadium steel Grade C12A

  • Monel

  • Aluminium Bronze

  • Hastelloy B/C

  • Duplex/Super duplex

  • Super austenitic Stainless Steel 6Mo

  • Titanium Option for inconel cladding is available

TRIM OPTIONS

  • Multi-Flow (MF) – single stage ported cage style

  • Single stage Multi-Flow (SS) – single stage drilled hole cage

  • Cascade (CS) – severe service duties concentric cage design

  • Variable Stage Cascade (VS) – combined single stage plus multi-stage cage design

  • Spline trim – single stage micro-flow control

  • Flash cone – multi-stage single path for extra low flow

  • X-Stream™ – Multi-stage, multi-path disk stack design for high severity service that combines multiple velocity reduction methods

BONNET FORMS

  • Standard – standard range of temperatures

  • Normalizing – protection of gland packing for temperatures beyond standard

  • Bellows Seal – high leak protection system

  • Cryogenic – for extremely low temperatures to prevent packing freezing

ACTUATORS

  • Pneumatic single spring diaphragm

  • Pneumatic multi-spring diaphragm

  • Pneumatic double acting piston actuator

  • Self-contained electro-hydraulic

  • Hydraulic (separate HPU and controls unit)

  • Electric

SIZE RANGE & DIMENSIONS

  • 40 - 600 mm (1.5 - 24 inches)

TEMPERATURE RANGE

  • -196ºC - 800ºC (-321ºF - 1472ºF)

UPGRADES & ADAPTATIONS

  • X-Stream™ – Multi-stage multi-path disk stack design for high severity service that combines multiple velocity reduction methods

  • Special length & height to accommodate various piping layouts

  • Cladding of body & bonnet wetted surfaces with Inconel or other corrosion resistant alloys

  • Actuation system upgrades to increase accuracy, speed, resolution

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