MIRABILLIA NEWS #160
AUGUST 2021
HAPPY 14 YEAR- BIRTHDAY TO MIR VALVE

No party this year but we all individually quietly did celebrate this wonderful milestone.
Each year is an achievement of success, the knowledge we acquire and how we apply this knowledge going forward to being a better, stronger company is one of the pillars of our company.
The knowledge we learnt from 2020 has taught us to stay calm, positive and highly energized and we will safely manage our way through 2021 being a very difficult year.

Stasi Prandalos, CEO

30” MOV BALL VALVE FOR SARAWAK SHELL, OFFSHORE MALAYSIA

MV3 Side-Entry Ball Valves (MOV) 30" CL.900, FB, RTJ
Body: CS, Trim: Duplex, PEEK Insert, Lipseals, Dual Seat Design
c/w Rotork Electric Actuator

 

End-User: Sarawak Shell
Location: Offshore Malaysia
Application: Exploration & Production

BALL VALVES FOR SARAWAK SHELL, OFFSHORE MALAYSIA

MV3 Side-Entry Ball Valves

4", 14", 16" CL.150/300/900, FB/RB, RF
Body: LTCS/SS/Duplex, Trim: SS/Duplex

4"x3" CL.1500, RB, RF, Full Solid Duplex

4" CL.1500, FB, RF, Body: Duplex/CS, Trim: Duplex/SS

4" CL.600, FB, RF, Body: CS, Trim: Inconel 625

Peek Insert, Lipseal Design, Manual operated

 

Qty: 11 pcs.

End-User: Sarawak Shell

Location: Offshore Malaysia

Application: Exploration & Production

GAS PIPELINE BALL VALVES FOR KUWAIT OIL COMPANY (KOC)

We have delivered to Kuwait

MV3 Side-Entry Ball Valves

24" CL.600, FB, RF, Body: CS, Trim: Inconel, Manual

3" CL.300, FB, RF, Body: CS, Trim: SS, Devlon Insert, Seal: Viton

c/w Pneumatic Actuator

End-User: Kuwait Oil Company (KOC)

Location: Onshore Kuwait

Application: Gas Pipeline

DID YOU KNOW - TOP-ENTRY BALL VALVE DESIGN

There are three main types of trunnion ball valve bodies made by manufacturers: top-entry, side-entry bolted body and side-entry welded body ball valve, each conferring advantages and disadvantages either in technical or commercial terms which the customer (end user) will need to weigh against their project priorities, location, operations asset philosophy and intended application.

The Top Entry Ball Valve is named so because the components necessary for pressure control (ball, seat, seals, etc) are assembled from the top of the valve.

This is achieved via the opening at the top of the valve called the Bonnet. The same components are removed via the top as well during disassembly when the valve undergoes maintenance.

And this is one of the main advantages of this type of valve body: The fact that assembly and disassembly is done via the top allows the valve to be serviced in-situ without having to physically remove it from the overall piping or pipeline assembly.

The valve can remain bolted or welded on whilst the internals of the valve is replaced/serviced.

Obviously, the line would have to be depressurized and inerted upstream and downstream before in-situ maintenance can be done. 

This type of body is typically preferred for use in direct buried transmission pipelines where block valve stations are located in remote and difficult to access locations, also in offshore Riser, subsea and LNG/ regasification plants.

Another advantage that this valve has is that this valve body is effectively a 2-piece body, the disassembly process is straight forward and requires a special tool in sizes 6” CL. 1500 and above to allow the technicians to remove the trim parts and install new OEM parts in-line, as an example a 36” CL. 600 can be fully disassembled and re-assembled in a 12-14 hr period working on site. Of course, all this upside comes with some trade-offs. The Top Entry Ball Valve is typically the heaviest of the three and due to the increased body size, it is more expensive. They also take the longest to manufacture compared to their side entry counterparts.

However, customers who select this type of ball valve do so because they specifically want to have in-line repair and maintenance features, this is part of the end users pipeline asset management program requirements typically defined during the design phase of the project. For applications onshore the weight is not an issue for offshore yes weight could be an issue and has to be assessed during the design phase, to ensure they have the lifting equipment on the platform or barge to lift and carry the weight of the top entry ball valve.

BUY MALAYSIA CAMPAIGN ISSUED BY THE GOVERNMENT