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MOGAS Watson Series™

Reliable, robust isolation for slurry and corrosive severe services

ASME 150 – 600 Class: Compliant for Oxygen Services

MOGAS Watson Series^™ bi-directional, metal-seated isolation valve is widely used in mining, chemical, petrochemical and refining industries. This ASME 150-600 Class valve is available in sizes from 1/2 to 12 inches, and in materials of construction and coatings to specifically combat the harsh environment of corrosion and erosion, and high pressures and temperatures.

• Features & Benefits
• Applications
• Downloads

 

1

CloseFloating Ball Design

• Straight-through, full port design protects sealing surfaces
• Large stem slot for increased torque capabilitie

2

CloseSeatMate lapped to match the ball. Wide sealing surface supports high contact stress and resist wear on ball.

3

CloseSeat RingProvides a positive backside seal and makes the valve totally bi-directional.

4

CloseBlowout-proof Stem Design

• Large drive tang to disburse loads preventing twisting and deformation
• Shank is big enough to handle 2X the torque requirement at standard pressures
• Ball tang is sized to handle large torque requirements and not twist

5

CloseBody SealUses controlled compression loads to maintain a bubble-tight seal between the body and end piece. The seal is a combination of the spiral-wound base metal  with filler that can be either grafoil or Teflon™, depending on required service.

6

ClosePacking BoxThe configuration in graphite and Teflon provides sealing that has been emissions tested: less than 100 PPM for 15,000 cycles (EPA approved).     

7

CloseGland FlangeSelf-centering and adjustable. Bolting arrangement provides an even loading of the packing.

8

CloseStem SealProvides a smooth bearing surface to support the stems rotation.

Features Not Shown

• Oxygen Compliant
• Designed to standards: B16:34, MSS SP-61, API 598 and API 607
• Coating technology based on application-specific operating conditions and materials of construction

Mining (POx and HPAL Autoclaves)

• Steam isolation (primary and secondary)
• Quench isolation (primary and secondary)
• ​Oxygen isolation (primary and secondary)
• Slurry feed pump drain
• Discharge line drain
• Vent isolation (primary and secondary)

 

• High pressure choke water fill
• Flash vessel drain
• Sparge drain vent
• Vent isolation drain
• Steam supply drain
• Feed tank pump drain

 

• Feed tank flush system
• Feed dilution drain
• Pre-heater drain
• Slurry feed pump suction drain
• High pressure heater vessel drain
• High pressure air isolation (primary)

• MOGAS Watson Series™ PDF 3,906.4 KB