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Model 6MNBB

Model 6MNBB
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Model: 6MNBB & 10MNBB DOUBLE BLOCK AND BLEED MONOFLANGE VALVE The 6MNBB is a range of lightweight Double Block & Bleed Monoflange isolation valves that are ideally suited to a wide range of instrumentation applications via standard flanged pressure take off points. The compact design incorporates the both the Isolation valves, the Vent valve and outlet into a single one-piece body. This not only ensures that potential leakage paths are kept to an absolute minimum but offers significant weight and component cost savings when compared to other conventional installation solutions. All units incorporate the Budenberg 6N Heavy Duty Needle Valve assembly that features all metal seating and true metal to metal body / bonnet connections. Monoflanges are manufactured in a full range of materials, flange types and ratings as well as having a choice of flange, screw or kidney flange outlet connections. Units can undergo full material and product testing / certification to suit any project or customer requirement. Process Construction Manufactured from a single piece forging or forged barstock that incorporates all the Needle Heads and outlet connections. Configuration Double Block/Isolation Valve & Vent/Drain Valve Inlet The flanged process connection can be made to suit any International size or rating including, but not restricted to: * ANSI B16.5 Flanges from 1/2" to 4" in ratings from 150 to 2500 lbs in RF, FF, SRF and RTJ flange face styles. * API Flanges up to 2.1/16", 3000, 5000 & 10,000 lbs * Norsok L-100 Compact flange design Vent 1/4" NPT female vent as standard, others available upon request Blank and Vent plugs are available (see DSheet VAC-048) Outlet In Flange by Flange variants the outlet flange is identical to the inlet process flange as listed above. Alternatively the output can be: * Screwed female connections, (1/2" NPT standard) * Kidney Flanges for direct connection onto transmitters * Quick release compression fittings Bore Sizes 6mm (standard), 8mm can be provided dependant upon the flange size and rating Fire safe Fire safe to BS 6755 Pt 2 NACE All body & wetted parts materials comply with the requirements of NACE MR 1705 / EN15156 or MR 0103 dependent upon the environmental or application requirement Pressure Rating Pressure rating up to 10,000 psi (690 barg) Temperature Rating -54 to +538 Deg C (-65 to +1000 Deg F) dependant upon the stem packing material and pressure rating in use. (see datasheet VAC 041 for pressure / temperature performance graph) Needle Valve Assemblies Heavy Duty Needle Valve Head Assemblies incorporate a full range of features including: * Anti static , anti blow-out stems * Self centering, non-rotating stem tips provide a true metal to metal valve seat whereby the material of the stem tip is one grade harder than the body thus resisting over tightening, preventing wear and guaranteeing a 100% bubble tight seat closure, first time, every time No Threads in the process stream All Needle Valve assemblies incorporate 'soft' parent metal sealing rings that are located directly below the head to ensure that no threads are directly in the process stream Stem Packing Fully adjustable, dynamically responsive multi ring gland sandwich', in either PTFE or Graphoil, resists all operating pressures and processes. Other Features * Hydro static and Gas Pressure Testing to BS 6755 Pt 1 or API 6A * Material thickness as defined in ANSI / ASME B16.34 * Flange Dimensions as defined in ANSI / ASME B16.5 * Heat code traceable Material Certification to EN 10204 3.1b * Full range of testing, certification and documentation can be supplied including PMI and a full range of NDE Testing * Pressure boundary designs calculated to ASME VIII Div 1 * Designed with 4:1 safety factor * Optional locking and anti tamper head assemblies

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How to specify Type 6MNBB Monoflanges The part number is compiled from a series of generic and alphanumeric codes that define the base unit and options. The structure of the part number is compatible with other range of Budenberg Valves and follow the definition of the valve by defining the Primary Isolation Valve and the Output connection thereafter the material and options are then defined Typical definition: Double Block & Bleed Monoflange, 10,000 psi operation, Flange x Screw, 2" 900RTJ Flange, 1/2" NPT f outlet, Hastelloy, Fire Safe Flange Size Blank = Flange x Screw Connection Type RF...

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Dimensions of a Double Block & Bleed Monoflange D Dimension is only applicable to units with a screwed outlet All dimensions are in mm. . Budenberg Gauge Co Ltd 4 Gilchrist Road. Northbank Industrial Park. Irlam. Manchester. M44 5AY. Tel : +44 (0)870 442 5441. Fax : +44 (0)870 787 7350. Email : sales@budenberg.co.uk Web: www.budenberginstruments.com

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