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Del-Monox DM Series Breathing Air Systems

Deltech is updating the DM Series. Call for prices or consider the Hankison Catalite system.
Del-Monox DM Series Breathing Air System How DM Breathing Air Systems Work
Sizing a Deltech DM Breathing Air System
Specifications
Product Specifications and Pricing

Delmonox Replacement Filter Elements for all models

DM Series Models 125 to 920 SCFM

Del-Monox DM Series compressed air purifiers can be used on a continuous duty basis in high-capacity applications.

DM Series purifiers feature a simple design with few moving parts. Standard features include...
  • Electronic automatic drain valves
  • Carbon monoxide monitor
  • Failure-to-switch alarm
  • Desiccant tower pressure gauges
  • ASME-code desiccant vessels
  • Color change indicators in the desiccant beds warn against possible moisture contamination of the catalyst

How DM Series Breathing Air Systems Work

Inlet air enters a multistage high-efficiency prefilter E where liquid oil and water, as well as particulate contaminants, are removed. Electronic drain valves D automatically discharge the separated contaminants.

CLICK TO ENLARGE...Del-Monox DM Series Breathing Air System Filtered air enters one of the two desiccant towers via a shuttle valve G. The twin desiccant vessels remove water vapor. A small portion of the dried air (purge air) is used to regenerate the offstream vessel. Color change indicators I indicate relative humidity and monitor dryer performance.

A catalyst/charcoal vessel C converts carbon monoxide to carbon dioxide and removes odor and taste causing hydrocarbon vapors. An afterfilter F removes desiccant dust and other fine particles.

A carbon monoxide monitor M measures the level of carbon monoxide in the outlet air and provides an alarm if that level exceeds a predetermined set point. Finally, Grade D breathing air is supplied to the system.

Sizing Example

To select a DM Series purifier, first determine the air pressure at the purifier inlet and the maximum breathing air flow required at a given time. Size the purifier according to the following example.

In a shipyard, 50 workers require 6 scfm each for the Type CE respirators and 13 workers require 25 scfm each for their full-suit air line respirators. The air system pressure is 100 psig. The maximum required breathing air flow rate is (50 x 6) + (13 x 25) or 625 scfm. From the Model Selection Chart, using 100 psig operating pressure as a guide, select a purifier with an outlet flow that equals or exceeds 625 scfm. Select model DM640. Additional air must be supplied to the purifier inlet for operation of the dryer.

To estimate the required inlet air flow, divide the required outlet air flow by 0.83. In this example the required inlet flow is 753 scfm. To estimate the required inlet air flow for inlet pressures other than 100 psig.
Modela Inlet Air Pressure (psig)
80 90 100 110 125 150
Maximum Outlet air Flow (scfm)b
DM125103114125136152163
DM170137155170192220238
DM260202229260272294307
DM300242275300339388420
DM400320363400430464486
DM640507575640681735769
DM92072782492097610541102

aBased on saturated 100° F ambient air. Capacity will be reduced with saturated inlet air at higher temperatures; consult Deltech. Maximum recommended inlet air temperature, 120° F; minimum, 65° F. Maximum operating pressure, 135 psig; for operating pressures below 80 psig.

Specifications

Modela Conn. In
(NPT)
Conn. Out
(NPT)
Height
(in.)
Width
(in.)
Depth
(in.)
Weight
(lbs.)
DM1251170.527.037.0800
DM17011/211/270.530.057.01350
DM2602274.034.543.52150
DM3002276.040.068.52400
DM4003281.539.047.02900
DM6403392.050.553.54550
DM9204'' FLG3100.062.069.56800

Product Specifications and Pricing

Click on a model number for pricing and detailed specifcations.

Deltech Model DM125 (125 SCFM)
Deltech Model DM170 (170 SCFM)
Deltech Model DM260 (260 SCFM)
Deltech Model DM300 (300 SCFM)
Deltech Model DM400 (400 SCFM)
Deltech Model DM640 (640 SCFM)
Deltech Model DM920 (920 SCFM)

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