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Auburn, Maine 04210 USA

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SGT 500 Stainless Steel Two Stage Regulator

The SGT 500 stainless steel two stage regulators are recommended for ultra high purity, corrosive or toxic gas applications where constant delivery pressure is required as inlet pressure decreases.

The materials of construction will not off-gas and contaminate the gas stream. The design is highly resistant to inboard diffusion of atmospheric contaminants. A diffusion resistant, packless diaphragm valve is optional.

These regulators are highly recommended for critical high purity and OEM applications. They are able to withstand internal vacuums generated during purging operations. The SGT 500 incorporates advanced design features for maximum safety and ease of installation in complex piping systems.

SGT 500 Features

  • Metal-to-metal diaphragm seal
  • Helium leak rate of 1x10-9 scc/sec. All high purity regulators are inboard leak checked with a helium mass spectrometer before shipment
  • 1.6" (4.1cm) 316L Stainless Steel diaphragm for minimal footprint in complex gas systems
  • 2" dual scale gauges
  • Cartridge type seat assembly with 10 micron inboard filter
  • 2" stainless steel bar stock with 6 ports: 3 high pressure, 2 low 1 intermediate for maximum installation flexibility
  • Available fully configured for cylinder, OEM or bare-body for custom installation
  • Rotating captured vent for remote venting in the unlikely event of diaphragm failure
  • Housing cap is threaded for easy panel mounting
  • Relief valve on intermediate stage
  • New control knob allows increased precision settings.

SGT 500 Specifications

  • Maximum Inlet Pressure - 3000 psig
  • Outlet Pressure Ranges
  • 15 (2-15 psig)
  • 40 (2-40 psig) 80 (4-80 psig)
  • 125 (5-125 psig) 200 (10-200 psig)
  • 300 (10-300 psig) 500 (20-500 psig)
  • Inlet & Outlet ports - 1/4" NPT (F)
  • Temperature Operating Range - -40o to 140oF (-40o to 60o C)
  • Outlet pressure rise....Less than .07 psig per 100 psig inlet decay
  • Flow coefficient - Cv=0.128
  • Weight - 4.5 lbs (2.0 kgs)

Materials of Construction

  • Body - 316L Stainless Steel bar stock
  • Spring housing cap - Chrome-plated brass
  • Diaphragm - 316L Stainless Steel
  • Nozzle - 316L Stainless Steel
  • Seat - PCTFE
  • Seals (Non-welded) - Teflon
  • Poppet - 316L Stainless Steel
  • Inboard filter - 10 micron sintered S.S.
  • Seat return spring - 316L Stainless Steel
  • Pressure Adjusting Spring - Heat-treated Spring Steel
  • Adjusting Knob - Acrylnitrile Butadiene Styrene
SGT 500 Typical Applications
  • Gas chromatography
  • Regulation of corrosive gases
  • Epitaxial Reactors
  • Diffusion furnaces
  • Research sampling systems
  • Laser gas systems
  • Process analyzers
  • CEM & EPA Protocol Standards
 


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