MIRABILLIA NEWS #134
JUNE 2019
BE FEARLESS

Is the message to overcome our fear, show courage in making a difference in our company and in our environment every day.

We try to teach and empower our employees to do the right thing, get active, try to learn more about what is going on around them and take action.

It is a great moment when we see this "fearless" culture being adopted by our employees. 

Stasi Prandalos, CEO

NEW ORDER OF DBB MOV BALL VALVES FOR BRUNEI SHELL PETROLEUM

We are pleased to announce the award of an important order for MOV DBB Ball Valves for the Brunei Champion 11 Complex (CPCX-11), liquid export pumps inlet and discharge lines, offshore Brunei.

The order consists of 8 pcs of MV4 DBB Ball Valves (twin ball) Motor Operated, Sizes 20”, 16” CL. 600 FB/RB body CS/ Trim SS/DSS, Peek insert.

EPC: Amec Foster Wheeler
End-User: Brunei Shell Petroleum
Project: Champion 11 Complex Rejuvenation Project
Delivery: 24 weeks

20”, 24” FABRICATED GATE VALVES DELIVERY TO SOUTH KOREA

We have completed the delivery of 2 pcs of fabricated gate valves to South Korea, details as follows:

MV7-P Through-Conduit Gate Valve
22", 24" CL.600
Fabricated Body FB, BW
Body: EN 10028-3 P355
Trim: CS+ENP,
Manual

EPC: I.B. Plus
End-user: DOPCO (Dahean Oil Pipeline Corporation)
Project: Spare of Gate Valve for Existing Pipeline
Onshore South Korea
Qty: 2 pcs

•The fabricated body construction is typically used for standard services and applications, it is a proven and established design.
• It is the most popular design due to competitive cost and fast delivery.
• Designed for pressure CL 150-1500.
• Full in-line maintenance; the bolted top-entry construction allows disassembly on site for inspections and repairs or replacement of internal parts.
• The flat sealing surfaces between the slab and the seats guarantee a more reliable bubble-tight shut-off for soft and metal seats (leakage rates as per API 6D) ensuring a longer life cycle in service.
• Designed and manufactured to withstand external loads from the pipeline to prevent any deformation of the body when the internal parts are fully removed for repairs and new parts are installed.

COMPACT GATE VALVES FOR CALLIDUS TO SANTOS AUSTRALIA

We have completed the delivery of 3 pcs of compact gate valves to Callidus Australia for Santos

MV7-CP Through-Conduit Gate Valve
Compact Design, Fabricated Body
18” CL. 150 FB, RF
Body: CS, Trim: CS/SS
Manual

EPC: Callidus Valve Sales (MIR VALVE exclusive Rep in Australia)
End-user: Santos
Onshore Australia

The compact body design is cost, space and weight saving.

It is suitable for low pressure applications.
• Available in sizes 16”-60” CL. 150-300 in CS body and CS/SS trim
• Primary Metal Secondary Soft Seat, bubble-tight, zero leakage
• Compact face to face dimensions
• Full bore
• Piggable
• Top Entry in-line maintenance, in-line repairable

MORE DELIVERIES TO SARAWAK SHELL

Part of our Shell Price Agreement, we have delivered an additional 9 pcs of ball valves for offshore installation in Malaysia as follows:

 

MV3 Side-Entry Ball Valves (4 pcs)
8"x6" CL.900, RB, RF, Full Duplex, Lipseals
Fugitive Emisssion Testing
Manual

Client: Sarawak Shell
Project: F14 Phase 2B Infill Well
Offshore Malaysia

 

MV3 Side-Entry Ball Valves (5 pcs)
6", 8", 12"x10" CL.150/300, FB/RB, RF
Body: LTCS/CS/SS, Trim: SS, rPTFE/PEEK, Lipseals,
Fugitive Emisssion Testing
Manual

Client: Sarawak Shell
Project: Gumusut Kakap Turnaround 2019
Offshore Malaysia

DID YOU KNOW?

The obturator (the ball) of the ball valve will flex when it is subjected to differential pressure. This is because the ball isn't a solid sphere; it is in fact a sphere with a bore going through the center and, as a result, the ball will inherit a certain amount of flexibility due to this geometry. To add to this, due to the non-uniform nature of this flexing under differential pressure, the amount of net deformation across the ball face will also vary across the ball's pressurized surface.

In order for a ball valve to function effectively, the seat of a ball valve must be able to maintain contact with the ball across the entire surface where the seat meets the ball. For this reason, soft-seated valves (metal seats with thermoplastic inserts) are far more effective at holding back differential pressure than a fully metal seat (metal-to-metal contact between seat and ball).

The pliant nature of the thermoplastic insert is able to conform itself around the non-uniform flex of the ball described before, as well as conform around microscopic surface imperfections on the ball's surface. However, on the flipside, soft inserted seats are less robust against abrasion compared to their far more wear resistant, fully metal seat counterparts. Therefore, a fully metal seat's geometry will be designed in such a way where the entire seat will flex in concert with the ball to maximize seat to ball contact across the entire range of differential pressures.