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ProSys Technology products are inclusive of both standard and custom engineered Containment solutions. Our company philosophy is to contain any hazard at the source, minimise cleaning, maximise flexibility, and maintain an environment that is safe for the personnel and process.
Charging a potent powder into a vessel should utilise an Isolator. Often, the vessel is very large and adding an Isolator to the charge point of the vessel is not possible due to room height. ProSys Technology has developed a Containment charging Isolator with a slurry vessel. The slurry vessel is equipped with a mixer, enabling the powder to be mixed into the liquid creating our slurry. The slurry is then transferred to a larger vessel containing the remaining liquid to produce the final formulation.
To meet the Containment Performance Target (CPT) of 200 ng/m3, the Isolator included 2 RTP’s and a split butterfly valve (SBV). Bulk product enters the Isolator via a type 350 RTP system. Potent powder is weighed into sub-lots inside the Isolator. Some of the weighed material then exits the Isolator via the lower chamber. This may, later, be removed via a type via a type 190 RTP system for sampling. Other weighed material is charged into the slurry vessel via the split butterfly valve in the Isolator floor. A funnel is placed into the open split butterfly valve. This funnel has two legs, allowing it to straddle the open valve assembly. Once all powder has been added and the funnel removed, the valve is closed, the slurry tanks’ disconnected, and the separated valve surfaces are wiped down. The slurry tank may be moved to the process vessel where the slurry is to be transferred.
Due to the nature of solvents used in the process, the slurry tank was constructed of C22 Hastelloy. It also included a variable speed mixer.
The Isolator generally includes the below features:
- Spray wand with removable spray gun
- 316L Stainless Steel, fully welded shell construction
– Radius corners and internal edges
– Internal metal surfaces polished 0.5 ~ micron Ra or better
– External metal surfaces polished 0.8 ~ micron Ra or better - Toughened double laminate glass door(s) with inflatable seal providing operator access via the glove ports to carry out general tasks and operations inside the Isolator
- Allen Bradley PLC and PowerFlex Drive
- Allen Bradley PanelView 10” HMI
- Local Operator Panel (LOP) with Magnehelic gauges, cut-out for weigh scale indicator, HMI and E-stop
- Air handling
– Air entry via a single inlet 99.995% rated H14 Filter mounted in a “safe change” push/push housing
– Air exits via two 99.995% rated H14 Filters mounted in a “safe change” push/push housing
– Operates with room air via automated open/close valve
– Painted cast aluminium exhaust fan - <75dBa noise level in normal operation
ProSys Technology approaches every project as our customer’s partner, to assist them in producing an Isolator System that it the best solution for their process and operators. Get in touch today to find out more!
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