Page 251 - Praxair - Specialty Gases and Equipment Reference Guide
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3012 Regulators

            High Purity Regulators for Non-Corrosive Service




            Dual Stage Nickel-Plated Brass Barstock Body,
            Four-Port Configuration, 316 Stainless Steel
            Diaphragm
            The 3012 Series regulators are intended for primary pressure
            control of non-corrosive, high purity or liquefied gases. It is
            recommended for applications requiring constant delivery
            pressure control, regardless of supply pressure.


              Typical Applications
            ■  EPA Protocol gases    ■  High purity chamber
            ■  Gas and liquid chromatography      pressurization
              FID, GC, HID, PID, FPO, RD,     ■  Petro/Chemical Industry
              ECD                    ■  Purge gases
            ■  Ultra high purity carrier gases  ■  Laboratory analysis
            ■  Zero, span, and calibration
              gases

              Features and Benefits
            ■  Nickel-Plated Brass   ■  10 Micron Filtration   ■  316 Stainless Steel    ■  Convoluted Diaphragm
              Barstock Body          ■  Outlet Pressure Ranges     Diaphragm              Smooth pressure transition
              Controlled surface integrity                      No inboard diffusion
                                       0-15 to 0-250 psig
            ■  Front Panel Mountable    Broad range of applications  ■  Low Wetted Volume
              Easy Installation                                 Minimal purge requirements
              Specifications                                     Materials
            ■  Maximum Inlet Pressure  ■  Ports                ■  Body                  ■  Filter
              3000 psig (210 bar)      1/4" FNPT                Nickel-plated brass barstock    10 micron sintered bronze
            ■  Temperature Range     ■  Helium Leak Integrity  ■  Bonnet                ■  Diaphragm
              -40 °F to 165 °F         1 x 10  scc/sec          Nickel-plated brass barstock    316 stainless steel
                                           -8
              (-40 °C to 74 °C)
                                     ■  Cv                     ■  Seat                  ■  Internal Seals
            ■  Gauges                  .05                      First Stage – Teflon ®    Teflon ®
              2" diameter                                        Second Stage – PTFE
              chrome-plated brass    ■  Weight
                                       4.8 lb (2.2 kg)
              Ordering Information — Series PRS3012ABCD-CGA       Highlighted selection indicates most popular model
     Section E – Gas Handling Equipment
              A                               B         C                        D                  CGA
            Outlet Pressure   Outlet Gauge   Inlet Gauge   Outlet Assemblies   Assembly/Gauges   Inlet Connections
            1:  0-15 psig   30"-0-30 psig   0:  None   0:  1/4" FNPT Port      0:  Bare Body     CGA,
            2:  0-50 psig   30"-0-100 psig   3:  0-4000 psig   1:  1/4" MNPT   1:  Standard Assembly   DIN 477,
            3:  0-100 psig   30"-0-200 psig   5:  0-1000 psig   2:  1/4" Tube Fitting      (psi/kPa Gauges)   BS 341
            4:  0-250 psig   0-400 psig   6:  0-300 psig   3:  Diaphragm Valve 1/4" Tube Fitting   2:  Standard Assembly   and others
            7:  0-150 psig   30"-0-200 psig   7:  0-400 psig   4:  Diaphragm Valve 1/4" MNPT      (bar/psi Gauges)   available
                                                     5:  Needle Valve 1/4" MNPT
                                                     6:  1/8" Tube Fitting
                                                     7:  3/8" Tube Fitting
                                                     8:  Diaphragm Valve 1/8" Tube Fitting
                                                     9:  Diaphragm Valve 1/4" FNPT

              Option                         Part Number             Description
            Panel Mount Kit                  PRS5500002T             To mount the regulator using threads on the bonnet.
            Captured Vent – Standard Equipment   PRSSG6705           For easy piping of vented gases to a safe location in the event
            3000 and 4000 1/16" FNPT                                 of diaphragm failure.
            Helium Leak Certification        PRS4760002              Inboard helium leak certification to less than 1 x 10  scc/sec
                                                                                                    -8
            Protocol Station                 Add Letter “M” after CGA   See page E •281 for details
            Protocol Switchover Station      Add Letter “C” after CGA   See page E •282 for details
            Protocol Switchover Station with Alarm     Add Letter “G” after CGA   See page E •283 for details
            Protocol Alarm Station           Add Letter “A” after CGA   See page E •283 for details
            Deep Purge                       Add Letter “D” after CGA   See page E •279 for details



           E•250                              1-877-PRAXAIR                     www.praxairdirect.com
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