93 Bar Stock DBB0 pages

Model: 93
INSTRUMENT MANIFOLDS
DOUBLE BLOCK & BLEED
The model 93 is a range of high specification yet low cost
Double Block & Bleed Valves for instrumentation applications that
are available in any combination of Ball or Needle Valve assemblies.
The units are available in a full range of materials and options
to meet the individual user requirements. The compact slim line
design enable them to be used in wide range of applications
particularly where space and weight must be kept to an absolute
minimum.
All valve assemblies are housed within the single forged barstock
body whilst the end connections incorporate the valve sealing
face to ensure a single piece of material up to and including the
first Primary Isolation Valve.
The end connectors are available in choice of screwed, weld
or custom connections that are pinned to prevent accidental
removal. A full range of testing, certification and documentation
can be provided to suit the individual project requirement.
Construction
Modular construction comprising of a central barstock body
housing all the valve assemblies in to which a choice of
screwed or welded connections can be fitted.
Configurations
Double Block
Double Block & Bleed
Inlet / Outlet
Type 93 units can be manufactured with any standard end
connections including:
* Screwed connections up to 1" NPT
* Butt or Socket weld connections are available but the end
connections may be extended to protect internal components
within the valve head assembly during the welding operation
All inlet and outlet connections are secured to prevent accidental
dis-assembly.
Vent
Standard Vent connection is 1/2" NPT f screwed connection
but this can be changed to suit the customer requirement
Mounting
Units can have both threaded and clearance holes machined into
the body to allow units to be mounted onto or into any panel
or enclosure
Bore
These units are designed for instrumentation applications and
their design does not facilitate rodding out.
Options
PEEK™ seats available on request.
Rev-03 May 2009
Standard Features
Ball Valve Assemblies
Fully Floating Ball Valve Assemblies with cavity relief through
the seats.
Needle Valve Assemblies
Heavy Duty Needle Valve Head Assemblies that 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
Both Ball and Needle 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
* 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-034