MAC proportional pressure control PQE and pressure control system PQE92

OPERATIONOFTHEPQE
1. The pilot operated regulator and the PPC5C are both fed from a common inlet.
2. The °∞out°± port of the PPC5C sends pressure to the pilot port of the pilot operated regulator and to the °∞12°±
of the 400 Series Quick Exhaust Valve. The secondary pressure of the pilot operated regulator is sent to the
output port of the block and it is also sent to the °∞14°± end and inlet of the 400 Series Quick Exhaust Valv
3. The outlet pressure of the PPC5C along with the memory spring in the 400 Series valve will keep the valve in a
closed state as the unit increases pressure.
4. To reduce pressure, drop the PPC5C°Os signal. This will lower the pressure on the °∞12°± end of the 400 Ser
valve. The °∞14°± end of the 400 Series valve now has higher pressure causing a snap-action shifting of the 4
Series valve which will quickly exhaust the downstream pressure to the new selected pressure.

OPERATIONALBENEFITS
1. Accurate pressure control.
2. Fast response.
3. High flow.
4. Quick exhaust function.
5. Unaffected by change in line pressure.
6. Long life.
7. Designed to meet Nema 4 specifications.
8. Analog control.
9. Analog or TTL feedback.
10. Closed loop system.

PNEUMATICDATA
Inlet pressure :120 PSI max
Fluids :Air or inert gases
Lubrication :Not required. However, if used, a medium aniline point oil is recommended
Filtration :40 micron
*Output pressure :20 to 100 PSI
Overall accuracy :2.5% full scale
All ports :1/4, 3/8, NPTF, BSPPL, BSPTR
Flows :Output flow :
1/4°± ports: Cv 0.943/8°± ports: Cv 1
Exhaust flow :
1/4°± ports: Cv 1.33/8°± ports: Cv 1
**Output volume requirements :
Port sizeOutput volume atMinimum length
end of output pipeof output pipe
1/4°±100 Cu. in. and larger12
50 to 99 Cu. in.50°
3/8°±100 Cu. in. and larger24
50 to 99 Cu. in.50°

PPCTYPE
Analog, single transducer external sense, bottom O-ring mount

ELECTRICALDATA
Reference PPC5Cspecifications

PHYSICALDATA
Connector :Reference PPC5Cspecifications
Enclosure :Aluminum, sealed
Mounting :Any plane
Ambient temperature range :0 to 50°,C (32°,F to 120°

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