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                                          Advanced Specialty Gas Equipment

                                          CHANGEOVER SYSTEMS
                                          LMW Series
                                          Manual Changeover Systems

                                          LMW Series with Optional Filter

                                          The LMW Series Manual Changeover is an economical ultra high-purity gas delivery system for installations not requiring automatic changeover operation. The LMW Series system is designed with a two-stage brass bar stock regulator for two cylinder banks that can be manually switched from an in-service to a reserve cylinder. When the in-service cylinder is exhausted, it can be shut off and the reserve cylinder can be manually opened to replenish the supply. Isolation and vent valves allow the empty cylinder to be replaced and purged without any interruption of gas supply to the process.

                                          Standard Features
                                          • Diaphragm Seal Isolation and Purge Valves allow cylinder replacement without interrupting gas flow.
                                          • Ultra High Purity, Diffusion Resistant Design assures maximum diffusion resistance, maintaining gas purity.
                                          • Double-Braided (all metal) Stainless Steel Flexible Hoses maintain gas purity and provide ease of connecting cylinders.
                                          • Check Valves (built into CGA connection) prevent discharge of gas from pigtail during cylinder change-out.
                                          Optional Features
                                          • Outlet Filter traps foreign matter protecting downstream components from contamination and reduces maintenance.
                                          • Relief Valve protects regulator components from the effects of over-pressurization.

                                          Specifications
                                          Maximum Inlet Pressure: 3000 psig

                                          Operating Temp. Range: -40°F to 140°F

                                          Regulator:
                                            Inlet Pressure Gauge (dual scale):
                                              0–4000 psig / 0–275 bar

                                            Delivery Pressure Range

                                            Delivery Pressure Gauge

                                            Filter: 40 micron

                                            Gauge Size: 2" Dial

                                            Flow Coefficient: Cv = 0.05

                                            Outlet Connection:
                                               1/4" NPT female (on outlet valve)

                                            Inlet Connection: CGA connection as specified

                                            Valves: SG5460N Series

                                            Flexible Hose (all metal):
                                               30" long, 0.285" nominal ID,
                                               0.445" nominal OD

                                          Inlet Connections: CGA connection
                                             (as specified) with check valve

                                          Plugged Access Port: 1/4" NPT female
                                            (on manifold block)

                                          Materials of Construction
                                          Regulator, Block and Valves: Brass Bar Stock
                                          Gauges and CGA Fittings: Brass
                                          Diaphragms: Type 316 Stainless Steel
                                          Regulator Filter: Bronze
                                          Bracket: 12-Gauge Hot Rolled Steel with Powder Coat   Epoxy Finish
                                          Flexible Hose (all metal): Type 316L SS
                                            inner core with Type 321 SS
                                            double overbraid and Type 316 SS welded end fittings
                                          Seats:
                                            Check Valves: EPDM
                                             Regulator and Valves: PCTFE

                                          Optional Equipment
                                          Equipment Part No.
                                          Relief Valves (installed)  
                                            for LMW-B-30 RV5572-45i
                                            for LMW-B-75
                                          RV5572-90i
                                            for LMW-B-150 RV5572-175i
                                          Outlet Filter (installed) SG6113i

                                          Table I

                                            Delivery Pressure
                                          Part No
                                          Range
                                          (psig)
                                          Gauge(dual scale)
                                          (psig) (bar)
                                          LMW-B-30-(CGA) 2–30 -30" Hg–0–60 -1–0–4
                                          LMW-B-75-(CGA) 4–75 -30" Hg–0–100 -1–0–7
                                          LMW-B-150-(CGA) 10–150 -30" Hg–0–200 -1–0–14
                                          Where "(CGA)" is indicated above, insert appropriate Compressed Gas Association connection number to
                                          complete the part number. Example: LMW-B-30-580. Order by complete part number.
                                           

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