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Patented Premier 4903 demand flow regulators save you time & money on calibrations by transfer-ring the precise amount of gas required by a pump drawn instrument. As long as the pump is active, the regulator will remain “open” and gas will flow. When the pump stops, the regulator will turn off. The result? Less wasted gas, and lower calibration costs. These new vacuum actuated regulators are built with patented technology, eliminating the need for shut off valves, sample bags, or specially trained operators, making your calibrations quick & easy.
Unit of Measure

Brands

 N/A NorLAB

Inlet Fitting

 N/A C-10

Cylinder

 N/A 34/58/103/116 liter

Demand Pressure

 N/A <3 in H2O
Maximum Inlet Pressure1 N/A 3000 psig
Weight2 N/A 0.6 lb1.2 lb

Optional Items

 N/A CGA Connections Porting Configuration Private Label

Package Type

 N/A Each

Units Per Package

 N/A 1

Body Options

 N/A 303 Stainless Steel 6061-T6 Aluminum, Clear Anodize SAE 360 Brass, Nickel Plated

Bonnet

 N/A 6061-T6 Aluminum, Clear Anodize

Valve Seat

 N/A Buna-N Ethylene Propylene Diene Monomer (EPDM) Fluorocarbon (FKM) Polytetrafluoroethylene (PTFE) (Standard)
O-Ring Seal Options3 N/A Ethylene Propylene Diene Monomer (EPDM) Fluorocarbon (FKM) (Standard)

Diaphargm Options

 N/A Buna-N (Standard) Fluorocarbon (FKM)

Inlet Gauge Options

 N/A Brass Socket / Stainless Steel Case (Standard) Stainless Steel Socket / Stainless Steel Case

Integrated Inlet Porting Options

 N/A 1/4 FNPT (Standard) 1/8 FNPT

Optional Inlet Adapter Connections

 N/A C-10 (5/8-18 UNF) (Standard) CGA 180 CGA 330/660 CGA 350 CGA 580/590 CGA 600

Outlet Porting Options

 N/A 1/4” FNPT 1/4” hose barb 1/8” FNPT 1/8” hose barb 3/16” hose barb (Standard)

N/A

  • Compact size (2” diameter x 1.7” high)
  • Patented single stage design (patent no.: 8,550,113 B1)
  • Stainless steel body option with stainless wetted components provides minimum degradation to cylinder gases.
  • Available for both corrosive and non-corrosive service.
  • Machined bar stock bodies eliminate porosity found in castings.
  • Reduced particle contamination with 40 Micron stainless steel inlet filter.
  • Very competitive pricing.

N/A The compact and economical Premier 4903 regulator is available with a variety of body, diaphragm, seat, and sealing materials to suit a variety of calibration gas requirements. Premier 4903 Series regulators permit reduced testing time, with their ability to begin flow of gas at <3” H20 vacuum.

Commonly used with: portable gas detectors, gas analyzers, calibration gases, and pump drawn instruments.

  • 1 With appropriate inlet connection
  • 2 Stainless Steel Body, Gauge, C10 connection & hose barb
    Aluminum Body, Gauge, C10 connection & hose barb
  • 3 Numerous other compounds available