Welker Engineering Pte. Ltd. Product Catalog 2002
Control ValvesGas ProductsInstrument Regulators/Filters and Filter dryersLight Liquid Samplers
CylindersCrude Oil SamplersInjection SystemsMiscellaneous
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Gas Products
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Sampling Accessories


FS-2 Differential Flow Switch
- Stops sampler operation when flow slows to
   below a selected rate
- Adjustable tripping range from .05 to 3 inches
   of water column, less sensitivity available
   (factory set to approximately.2 inches of
   water column)
- 6V DC maximum
- Intrinsically safe design available.model FS-
   2EXP
- 1,500 psi maximum working pressure
- Anodized aluminum construction
- 1/4" NPT connections standard


LE-2 Liquid Eliminator
- Membrane inert to hydrocarbons
   and chemicals
- AH 316 stainless steel
   construction, other materials
   available
- 1.440 psig working pressure in
  stainless steel
- 250 ° F maximum temperature
- Easy installation and replaceable
   membrane
- May be back purged
- 1/4'' NPT ports


F-1 Stainless Steel Filter
- Provides primary particle filtration
  necessary for the operation of
  electronic moisture analyzers and
  other related analytical instruments
- 1 to 5 micron stainless steel filter
   elements
- Shredded Teflon for condensing out
- heavy hydrocarbons, glycol, etc.
- 5,000 psi maximum working pressure
- 250 °F (122 °C) maximum temperature
- Flow rate up to 8 cfm
- 1/8" NPT connections, other sizes available


ALS Analyzer Liquid Shut-Off
- Positive protection for gas GC's
- 300 psi maximum working pressure
   aluminum construction
- 1000 psi maximum working pressure
   316stainless steel construction
- Simple installation, vertical mount
- 1/8" NPT connections standard


DP-15 Drip Pot

- Removes free liquids from sample inlet line
- 304 stainless steel construction
- 1/4" NPT connections standard, other sizes
  available


F-2 Stainless Steel Filter
- Provides super filtration down to .45 micron
  for a gas stream entering various types of
  analyzers
- Third port provides for a constant bleed to
  assure a continuous fresh sample
- 5,000 psi maximum working pressure
- 250 °F (122 °C} maximum temperature
- Flow rate up to 8 cfm
- By NPT connections standard, other sizes
   available


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