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SWG series

Operating conditions

Application Dehumidification of sample gas for gas analysis
SWG-A01 series　
Inlet fluid temperature PP series -15 ～ + 80℃
+5 to 176°F
(Do not freeze)		 To maintain optimal dehumidification performance,
we recommend that you minimize the difference between
inlet (T inlet) and ambient (T ambient) temperatures,
and operate within the following range :
| Tinlet − Tambient | ≤ 5°C
| Tinlet − Tambient | ≦9°F
KF series -15 ～ + 100℃
+5 to 212°F
(Do not freeze)
ambient temperature PP series -15 ～ + 80℃
+5 to 176°F
(Do not freeze)
KF series −15 to +100°C
+5 to 212°F
(Do not freeze)
Inlet Fluid
Pressure Range

  • Supply gas: −0.04 to 0.5 MPa (gauge) at 25°C
    　　　　　　-6.0 to + 72psig at 77°F

    The pressure range shown above applies
    to dry hollow fiber membranes
    The graph to the right shows the effect of moisture
    and operating temperature on the applicable pressure range.
Purge gas: 0 to 0.05 MPa (gauge) （-6.0 to + 7.2psig at 77°F）
SWG-035 and 100 series　
Inlet fluid temperature PP series
PS series
SS series		 −15 to +60°C
+5 to 140°F
(Do not freeze)		 To maintain optimal dehumidification performance,
we recommend that you minimize the difference between
inlet (T inlet) and ambient (T ambient) temperatures,
and operate within the following range :
| Tinlet − Tambient | ≤ 5°C
| Tinlet − Tambient | ≦9°F
ambient temperature
Inlet Fluid
Pressure Range

  • The pressure range shown above shows
    the values under the dry hollow fiber condition.
    The value varies as per the graph shown
    at the right according to the wet condition
    of the hollow fiber or the operating temperature.
Purge gas: −0.04 to 0.05 MPa (gauge) at 25°C　（-6.0 to + 7.2psig at 77°F）

Note: The graphs above assume that the hollow fiber purge gas pressure is roughly the same as atmospheric pressure. The applicable pressure varies according to hollow fiber moisture or condensate mixing
Please contact us or your local representative if you are using a purge line with negative pressure, or in a pressurized atmosphere.

Standard specifications

Model Connector
Material		 Standard
Supply
Flow Rate
L/min.(ANR)
(scfm)		 Length Connector Size Weight
gf(lbs)
Total
mm
(inch)		 Purge Gas
Port from
Inlet
to Outlet
mm(inch)		 Supply gas
inlet/outlet		 Purge gas
inlet/outlet
SWG-A01-03/PP PP ~2
(～0.07)		 390
(15.4)		 300
(11.8)		 Ø6.35mm
(Ø1/4inch)		 Ø6.35mm
(Ø1/4inch)		 40
(0.09)
SWG-A01-03/KF PVDF 55
(0.12)
SWG-A01-06/PP PP 690
(27.2)		 600
(23.6)		 50
(0.12)
SWG-A01-06/KF PVDF 65
(0.15)
SWG-A01-12/PP PP 1290
(50.8)		 1200
(47.2)		 75
(0.17)
SWG-A01-12/KF PVDF 90
(0.20)
SWG-A01-18/PP PP 1890
(74.4)		 1800
(70.9)		 100
(0.22)
SWG-A01-18/KF PVDF 115
(0.25)
SWG-A01-24/PP PP 2490
(98.0)		 2400
(94.5)		 125
(0.27)
SWG-A01-24/KF PVDF 140
(0.30)
SWG-A01-36/PP PP 3690
(145.3)		 3600
(141.8)		 175
(0.38)
SWG-A01-36/KF PVDF 185
(0.41)
SWG-035-06/PP PP ~4
(～0.14)		 714
(28.1)		 600
(23.6)		 Rc1/4
(NPT1/4)		 Rc1/8
(NPT1/8)		 240
(0.53)
SWG-035-12/PP PP 1314
(51.7)		 1200
(47.2)		 350
(0.78)
SWG-100-03/PS PP ~12
(～0.42)		 414
(16.3)		 300
(11.8)		 1000
(2.2)
SWG-100-03/SS SUS316 1200
(2.65)
SWG-100-06/PS PP 714
(28.1)		 600
(23.6)		 1200
(2.65)
SWG-100-06/SS SUS316 1450
(3.20)
SWG-100-12/PS PP 1314
(51.7)		 1200
(47.2)		 1680
(3.71)
SWG-100-12/SS SUS316 1925
(4.25)

Operating precautions

Supply gas

  • To remove drainage, dust, etc., we recommend installing a filter (pore size ≤ 5 μm) at the supply gas inlet.
  • When using a lubricated compressor, we recommend installing an automatic oil mist separator at the supply gas inlet side with filtration of ≤ 0.3 μm, 95% particle size collection rate, and oil-mist concentration of <1 mgf/Nm3.
  • The supply gas should be clean and free of dust, corrosive gases, organic solvents, chemicals, and similar substances.
  • When installing a pressure-reducing valve, we recommend installing the valve at the outlet side of the dryer to improve dehumidification efficiency.

Purge gas

  • Purge gas is used to purge permeated water vapor from the outside of the hollow fiber membrane.
    • The purge outlet should be opened to the atmosphere, or reduced or eliminated.
    • Purge gas or sample gas should be discharged into harm-removing equipment or into a safe place.
    • The purge flow rate control valve should always be installed upstream of the purge gas inlet.

Typical examples

Using all sample gas as purge gas

  • Effective if the sample gas flow rate is relatively low.
  • The sample gases loses pressure as it passes through the analyzers. This pressure loss should be considered in determining the appropriate supply pressure.

Using a portion of the sample gas as purge gas

  • Effective if the sample gas flow rate is relatively high.

Supplying purge gas separately

  • Effective if instrumentation air or dried nitrogen gas is supplied separately.
  • Shows stable performance even if the supply pressure is lower than that of examples 1 and 2.
  • Dehumidification performance depends on the dryness of the supplied purge gas.

Vacuum purge line

  • Sample schematic :

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