Model MVF0 pages

Model: MVF
PRIMARY ISOLATION VALVES
MODULAR CONSTRUCTION

The model MVF is a three piece modular valve that can be readily
configured into a full range of Single or Double Block & Bleed
Valves that provide primary isolation when directly mounted
onto process pipework or vessels. The MVF has industry standard
flange or hub flanged inlet and outlet connections and a screwed
or flanged vent connection to suit any application requirement.
Its modular design enables units to have flanged ends of different
types, sizes, ratings and materials to be cost effectively be
manufactured. The design of the end connections incorporate the
detail that directly secures the Ball Assembly in position thereby
ensuring a single piece of material up to and including the first
Primary Isolation Valve in line with the necessary standards
The flexibility of the MVF Valve therefore provides a cost effective
yet limitless choice of configurations and materials that make it
the perfect choice for your primary isolation requirements. All
units can be supplied with a full range of testing, certification
and documentation to meet any project requirement

Construction
Three piece modular construction comprising of a central body
housing all the valve assemblies on to which a choice of flange or
hub end connections are bolted
Configurations
Single Block
Single Block & Bleed
Double Block
Double Block & Bleed
* Optional Check Valves can be fitted into the inlet or outlet
* Optional Quills can be fitted into the inlet for Injection or
sampling applications
* Other configurations can be supplied to suit any existing or
new application requirements
Inlet & Outlet
The flanged end connections can be of different types,
sizes, ratings and materials 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
* API Flanges up to 2.1/16", 3000, 5000 & 10,000 lbs
* Hub End connections including Techlok, Norsok, Graylok etc
Flange sizes and thicknesses can be specially provided to ensure
that the required valve will exactly fit into the space occupied by
any existing valve
Vent
Standard Vent connection is 1/2" NPT f screwed connection
but this can be changed to offer other connections including a
flange if required. Flange choices are defined above.
Bore Sizes
The through bore of the unit is dependant upon the type of
valve selected for the Primary and Secondary Isolation Valves
The vent valve is offset from the main bore and therefore can
be of a different style and bore.
Ball Valves 10 mm, 14 mm and 20 mm

Rev-03 August 2009

Standard Features
Ball Valve Assemblies
Fully Floating Ball Valve Assemblies with cavity relief through
the seats.
Needle & OS&Y Valve Assemblies
Both Heavy Duty Needle & OS&Y Valve Head Assemblies both
incorporate a full range of features including:
* Anti static , anti blow-out stems
* Self centring, 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 Ball, Needle & OS&Y valve assemblies incorporate a 'soft'
parent metal sealing rings that are located directly below the
head and connection adaptors 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, resist all operating pressur
and processes. Budenberg offer 100% gland integrity for the
lifetime of every valve
Other Features
* Hydro static and or Gas Pressure Testing to BS 6755 Pt 1
* Fire safe to BS 6755 Pt 2
* Material thickness as defined in ANSI / ASME B16.34
* Flange Dimensions as defined in ANSI / ASME B16.5
* Standard Material Certification to EN 10204 3.1b
* Can be manufactured in a full range of standard and special
materials to suit the application

Designed and Manufactured in UK.

Datasheet VAC-033