2x100% Simplex Filter v/s 1x100% Duplex Filter
2x100% Simplex Filter v/s 1x100% Duplex Filter
(OP)
Hi,
Can anybody cite the advantages and disadvantages (barring cost factor) of using 2x100% Simplex Filter v/s 1x100% Duplex Filter.
Should the Process Engineer define it, or should it be left to the vendor to decide.
Thanks in advance.
Can anybody cite the advantages and disadvantages (barring cost factor) of using 2x100% Simplex Filter v/s 1x100% Duplex Filter.
Should the Process Engineer define it, or should it be left to the vendor to decide.
Thanks in advance.
Dinesh S SHELATKAR.
Process Engineer





RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
Dejan IVANOVIC
Process Engineer, MSChE
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
Thanks a lot for a prompt reply.
I also know that the two units will end up for 100% throughput, but while specifying in the Process Datasheet what shall be specified 2x100% Simplex Filter or 1x100% Duplex Filter. Is there any criteria for concluding what shall be specified i.e. line size, flowrate etc. or shall we leave it to the vendor to take a call on the same.
Thanks once again.
Dinesh S SHELATKAR.
Process Engineer
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
~Disadvantages - those 2 three way valves on the unit need to seal very well and hot swapping on line will result in some debris on the upstream side in contact with the valve plug. In theory they are good, but you would need to ask operations how they find them after a few years of operation. Generally only for low pressure applications.
Never leave options like this to a vendor.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
Plot space requirements are usually less for Duplex units, so limited footprint can be a reason for specifying a Duplex arrangement.
Dejan IVANOVIC
Process Engineer, MSChE
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
1x100% Duplex has smaller footprint, less valves, less capital cost.
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
However, for maintenance purposes, you would want the filters to be independently operated should something need to be repaired.
A general recommendation is 2x100% Simplex will be more robust and reliable. Agree with Latexman.
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
I would also say that 2x100% configuration works better if more frequent changeovers of filter media is required. Accessibility can be an issue with Duplex filters.
Dejan IVANOVIC
Process Engineer, MSChE
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
RE: 2x100% Simplex Filter v/s 1x100% Duplex Filter
2x100% Simplex Filters
• Robust and safer
• Easy accessibility and maintenance
• High Cost
• High floor print
1x100% Duplex Filters
• Low Cost
• Low floor print
• Not so robust and safer as filters are integrated into a common casting/forging
• Not convenient in terms of easy of accessibility and maintenance
The final selection between the two shall be based on the filter changeover time, convenience of the operator and the points aforementioned.
For maintenance purposes, one would want the filters to be independently operated should something needs to be repaired. A general recommendation is 2x100% Simplex.
Dinesh S SHELATKAR.
Process Engineer