Blakeborough®
BV990 & BV992 Cage Trim Valves Class 900lb and above
Suitable for general, medium, and severe service applications for high pressure rating, cage guided, quick change trim, available in all configurations (globe, angle, Z-pattern) with a full range of cast and forged designs available.
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
- High temperature steam applications
DESIGN STANDARDS
- ASME B16.34
- EN 12516-1 / 2
- API 6A
- ANSI 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; Grade WCB, WCC, A105, AISI 4130
- Stainless steel; Grade CF8M, F316, CF3M, F316L, CF8C, F347, CF8, F304, CF3
- 1.1/4% chrome moly steel; Grade WC6, F11
- Low temperature carbon steel; Grade LCC, LCB, LF2
- 2.1/4% chrome moly steel; Grade WC9, F22
- High temperature Chrome alloy steel Grade C5, C12A, F91, F92
- Duplex/Super duplex; Grade 4A, F51, 6A, F55
- Super austenitic Stainless Steel 6Mo; Grade CK3MCuN, F54
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
