Val-Tex 700 - A new biodegradable valve lube sealant.
Val-Tex QS-2000a Lubrication Unit - still pumpsa "J" stick in 30 seconds and can pressure up to 10,000 PSI.
Val-Tex - new API Gate Valve Lubricant
Val-Tex - Special Silicone Sealant
Val-Tex "Valve Flush" - breaks out hardened sealants and lubricants in all types of valves.
Val-Tex 1400 - Hydraulic - High Pressure Gun
Val-Tex Tube Sealant Fittings - Designed and engineered for fast,
safe valve lubrication.


3-Piece Bolted Ball Valves and Single & Double Block & Bleed Ball Valves
Ball
Valves from Multi-Valve Technology
o MVT offers you a complete range of Bi-Directional Ball Valves, fully field
repairable, ranging from ½" to 24" and encompassing all pressure
class.
o These Valves are manufactured at their two modern 1,4000 sq.m factories in
France. Both factories are independently ISO 9001 Certified.
o All Valves are manufactured on 'State-of-the-art' CNC Machines.
o Emphasis has been given not just to an overall 'Robust Valve Design' but to
a reliable, low friction seating arrangement, to ensure continuous bubble tight
sealing and ease of operation of these valves in the field.
o Special attention has also been given to Valve standardisation and of part
interchange-ability, so minimum spare parts can be held for a cross section of
their Valves.
o MVT (U.K.) Trunnion Mounted Valves are all suitable for 'Double Block &
Bleed' service, being fitted with a body Bleed Valve in the body cavity.
o All Valves are designed to API 6D or API 6A (where applicable) and also
ANSI B16 34.
o MVT (U.K.) standard Valve is offered with materials to suit the NACE
Publication MR-01-75 latest revision and again as a standard Fire-safe to BS
6755 PT2.
VALVE FEATURES & OPTIONS:
Design Types - MVT End Entry Ball Valves are offered in two basic
configurations, Trunnion Mounted and Floating Ball.
Floating Ball Valves - support the Ball by the seats along allowing
the ball to 'Float' between fixed seats. This is suitable only for small bore or
low pressure Valves where the weight of the ball is not excessive.
Trunnion Mounted Ball Valves - are used for larger bores &
pressure classes. They support the ball on a fixed vertical axis, with the seats
being spring loaded. By the nature of the design Trunnion Mounted Ball Valves
will lead to reduced Valve Break Torques.
The Dimensional Data included, indicates MVT (U.K.) standard practice. MVT
(U.K.) are able to offer Trunnion Mounted on the majority of Valves listed as
Floating Ball. Both types are of Bolted Construction.
PISTON ACTION SEATS: Spring loaded Seat Holders
used on Trunnion Mounted Ball Valves ensure the seat is constantly in contact
with the ball and that an effective seal is realised from Low to High Pressure.
Whilst the springs guarantee the seats are kept
tightly in contact with the ball at low pressure, as the pressure rises a
pressure force is applied behind the seat at seal diameter 'D'. As this diameter
exceeds the contact diameter 'C', the resulting piston effect forces the seat
firmly onto the ball ensuring a tight seal.
FIRE-SAFE: Valves are Certified in accordance with BS6755 PT2.
VALVE CAVITY PRESSURE RELIEF: In the event of a build up in cavity
pressure the Piston Action Seats are designed such that the downstream seat will
retract allowing the pressure to equalise.
In Floating Ball types Valves the pressure will equalise to the upstream
side.
OPERATION: Dimensional data indicates MVT standard methods of
operation. MVT can however offer Gearboxes or Actuators to suit most of their
Valve sizes. All Valves have 90 degree operation with visual open / close
indicator. All Mounting Flanges are supplied to ISO standard unless otherwise
requested.
BLOCK & BLEED: All MVT Trunnion Mounted Ball Valves are suitable
for Block & Bleed Service.
SEALS: MVT Standard range uses Elastomer O-Rings with Grafoil back up
and plastic seats. If you have a specific line medium or temperature range to
meet, please contact us.
OPTIONS
ANTI-EXPLOSIVE DECOMPRESSION: MVT have a wide variety of Elastomers
available to suit various line mediums and temperature ranges. Many can be
offered as Anti-Explosive Decompression.
BLOWDOWN: MVT Ball Valves can be simply modified to include additional
PTFE Seals to make the Valve suitable for Blowdown operation.
CRYOGENIC: Valves can be supplied with additional PTFE Poly-seals,
lip-seals and stem extensions to meet your requirements.
DESIGN APPROVAL: MVT offer a calculation and Design Approval service
which allows you to specify verification by your choice of Certifying body, e.g.
DNV or Lloyds. Otherwise calculation packages can be prepared to your
requirements for internal review.
ESDV: MVT Valves can be designed specifically to meet Emergency
Shutdown requirements.
HIGH TEMPERATURE: MVT can supply High Temperature Valves which
included metal-to-metal seats, grafoil sealing, and stem extensions.
LIFTING LUGS: As standard, Valves weighting over 500 Kg will be
supplied with Lifting Lugs. Other Valves can be fitted with lifting lugs on
request.
LIPSEALS: PTFE based spring activated Lipseals can be offered to your
requirements e.g. Stem only, Full Lipseal, or anything in between.
LOCKING FACILITY: All Valves can be supplied with Locking Mechanisms
if specified.
METAL SEALS: MVT can offer metal C Seals at body joints if required.
METAL SEATED: Valves can be supplied metal seated. For small bore
Valve solid stellite Balls are used, for larger bore Valves, Ball are welded
overlaid and machined and polished to provide a perfect seat to ball contact.
NON STANDARD BORE: MVT can offer bores to suit your requirements.
PED: MVT have been active in ensuring our Valves will be in
conformance with the Pipeline Equipment Directive. This has been done via
continuous consultation with Lloyds.
PRODUCT STANDARDISATION: Whilst striving to build the best Valve
possible, MVT do however also concentrate on interchangeability between various
sizes of Valves. This helps to minimise spares stock required and is of benefit
to us, the manufacturer and to you the client.
SEALANT INJECTION: Valves can be modified to include stem lubrication
or seat sealant injection.
STEM EXTENSION: These can be supplied pressure, or non-pressure
retaining to meet your requirements, be it Cryogenic, High Temperature or Buried
Service.
SUBSEA: MVT can offer all Valves modified for Subsea Operation.
Operators can be supplied to be suitable for ROV Operation.
TESTING: MVT can offer a wide variety of testing, both internally and
by external bodies (if required). This could include extended gas testing,
Cryogenic testing or Hyperbaric testing, for example.
TRUNNION MOUNTING: MVT can Trunnion Mount all sizes and pressure
classes of Ball Valve, if required.
WELD OVERLAY: Weld overlay can be offered to meet your requirements
e.g. Seat Pockets, Stem Bore, all Wetted areas etc., in a wide variety of
Stainless Steels and high Nickel Alloys.
VENT / DRAIN: Vent & drain plugs are fitted as standard on larger
MVT Ball Valves. MVT can however, machine your requested configuration to
include safety type or Flanged type for example.
3
PIECE TRUNNION MOUNTED BALL VALVE

|
|
|
| 1. Adapter |
2. Grafoil Seal |
3. O-Ring |
| 4. Seat |
5. Ball |
6. Body |
| 7. Stud |
8. Stem |
9. Activator Ring |
| 10. Spring |
11. Nut |
12. Bonnet |
| 13. Thrust Washer |
14. Seat Holder |
15. Key |
| 16. Cap-screw |
17. Trunnion |
18. Trunnion Flange |
| 19. Bush |
20. Mounting Flange |
21. Spacer |
BALL VALVE AND SINGLE
& DOUBLE BLOCK AND BLEED VALVES
MVT (U.K.) introduces you to a new generation of Single
and Double Block and Bleed Valves, designed, manufactured and tailored
to suit the ever increasing demands of the Oil, Gas and Petrochemical
Industries.
These Valves are manufactured at our modern 9,000 S.Q.M. factory in Blois,
France, using the most advanced technology and equally the most modern CNC
machines. Included in our group of Companies, it the Forgemaster S.M.F.O. who
will supply us with all forgings in the diversity of materials we require to
meet our Customer's most stringent requirements. As we are not dependant on
'Third Party' companies to complete our product range, MVT firmly believe the
flexibility, workmanship and product quality they can offer, is unrivalled.
All Valves will be manufactured in a Third Party ISO 9001 environment.
MVT is not just able to offer Ball Blocks, but Gate, Globe and Needle Blocks
or combinations thereof. A design is available to offer the right Valve for your required service conditions. All these options can be supplied Full
Bore.
These Valves are designed for reliable service in the field, with care and
attention particularly addressed to the interchangeability of parts and
therefore the minimal requirement of spare parts being held by customer.
ALL VALVES MEET THE FOLLOWING
REQUIREMENTS AS A STANDARD:
o Designed to ANSI
B16.34, ANSI B31.3 and ASME VIII (where applicable);
o Forgings Supplied
by Group Company;
o Manufactured at
our French Factory to ISO 9001;
o Components
machined on State of the Art CNC Machines;
o Antistatic;
o Firesafe to BS
6755 PT2 (applicable for Ball Block only);
o Full compliance to
the NACE Publication MR-01-75 Latest Revision;
o Certified to DIN
50049.3.1.B as a Standard, with 3.1.C as a Customer option.
BENEFITS OF THE MVT DESIGN:
o Economical design
for ease of installation into Space restricted areas;
o Reduced weight to
conventional Valves;
o Ease of
maintenance;
o Designed for
reliability;
o Designed for
versatile modification to suit a customer's requirements, i.e. Sample probe,
Locking Devices and extensions for both Low and High Temperature;
o Complete range of
End Configurations, i.e. RF, RTJ, NPT, BSP, BSW, SWE, Hubs or combinations
thereof;
o Complete
Manufacture, Testing and Painting performed In-House;
o Diverse range of
materials, including the most exotic, supplied from our Sister Company S.M.F.O..
