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The Lunar Ball Segment Valve has a full-bore
opening where material cannot build up, accumulate, or be captured
within the valve body. The valve seal material can be Perfluoroelastomer
or Viton, and it is designed to inflate after the valve segment is
closed.
The full-bore opening of the
valve allows free flow of products through the valve. The torque
requirements to operate the valve are significantly lower than that of
standard Ball valves. This is due to the fact that only a segment of the
ball has to be turned to open or close the valve. The inflatable seal
does not touch the ball segment while it is moving.
The Ball Segment Valve is easily
opened or closed without the possibility of jamming.
The valve
can be supplied optionally with a full fail-safe system. In this case,
the valve closes whenever there is a loss of electric power or
compressed air/nitrogen. When a failure occurs, a pressurized
accumulator tank closes the valve. After the valve is closed, the
inflatable seal is pressurized to close the space between the ball
segment and the valve housing.
The unique features of the Lunar Ball Segment
Valve include:
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Full bore opening to allow
maximum product flow
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Ability to open and close with static or
flowing material
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Standard sizes from 4"
(100mm) to 12" (300mm)
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Larger sizes available up to 20” (500mm)
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Designed for full vacuum and overpressure (on the
upstream or downstream side of the valve)
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Perfluoroelastomer seals which are highly
chemically resistant (Viton and EPDM also available)
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Safe operation at temperatures up to 400°F.
(230°C)
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Inflatable seal to prevent jamming and leaking
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Seal inflates only when valve is fully closed and
deflates before opening, virtually eliminating seal wear and
increasing seal life
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Inflatable seal reduces actuator torque
requirements
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Special wiper design reduces product build-up on
ball segment
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Fail Safe options available
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Manually or Pneumatically actuated
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316 S/S material of construction standard (other
commercially available materials can be quoted optionally)
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CIP/SIP options available
Options:
CIP
Clean in place spray system can be supplied with removable or fixed
spray nozzles.
Sight Glass
Ball segment housing can be supplied with sight glass for inspection of
ball segment operation and product flow
Custom built valves
- Connection to a block flange
- Ball segment heating
- Heated jacket on ball segment valve housing
- Flanges at an angle
- Sanitary connections
- Dead space free design
Additional Valve Photos
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