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A FLE24 Cat P 98 Gas Equipment.qxp_Gas Equipment 1/11/24 5:54 PM Page 1

For more detailed
GAS EQUIPMENT MillerWelds.com/gasequipment
information, visit

We offer an extensive line of quality regulators, cutting torches, tips and a variety of Flow data can be obtained at
accessories for your oxy-fuel and welding requirements. MillerWelds.com/flowdata

Smith Pressure Regulators See literature GE/5.0 (Series 40/46)
and GE/4.0 (Series 30)
Series 40 shown
Heavy- and medium-duty single-stage 1 5
pressure regulators
2 6
Series 40 and Series 30 industrial-grade pressure
™
™
regulators provide accurate pressure readings for
3
oxy-fuel cutting, heating, welding and brazing applications.
Series 40 heavy-duty regulators are recommended for high
gas flow applications including liquid service. Series 30 4
7
Series 40 Series 30 medium-duty regulators are recommended for most Sure Seat
daily-use applications. Extremely durable construction and filtered
simplified design provide consistent gas flow and longer Features seat design
Also available trouble-free operation. Covered by a three-year warranty. 1 Resin bonnet insert allows smooth, easy
adjustment even at high-pressure levels.
Stock Number Gas Regulator Max. Delivery Pressure or Flow Inlet Connection
Series 30 Note: Series 40 and 46 only.
HTP2 Oxygen 30-100-540 100 psig (7 bar) CGA 540
single-stage 2 Stainless steel diaphragm resists corrosion,
Acetylene 30-15-510 15 psig (1 bar) CGA 510
regulator leaking and freeze-up if used with liquid
HTP5 Oxygen 30-100-540 100 psig (7 bar) CGA 540 (cryogenic) gases for extended service life.
twin packs
Acetylene 30-15-300 15 psig (1 bar) CGA 300 Note: Series 30 and 35 have a neoprene
diaphragm.
Medium-duty two-stage pressure regulators 3 Color-coded labels supply performance
capabilities, easy gas service identification
™
Series 35 two-stage regulators drop cylinder pressure to working pressure in
and technical information.
two stages for consistent and accurate outlet pressure and flow regardless of
4 External relief valve protects regulator from
inlet pressure. Recommended where outlet pressure and flow must be maintained
damage due to inadvertent high-pressure
without variation. Covered by a three-year warranty. surge. Relief valve will release excessive
pressure and automatically reset.
5 Nickel-plated bonnet and brass body
Heavy-duty single-stage station regulators protect against corrosion.
™
Series 46 brass line regulators are rugged, accurate and corrosion resistant. 6 Easy to read 2.5 inch gauges with shatter-
Station regulators are used to connect pipeline gas delivery systems to the welding resistant polycarbonate lens covers.
stations. Because the pipeline pressure is regulated upstream, station regulators Note: Series 30 and 35 have 2-inch gauges.
only require a single delivery pressure gauge. Covered by a three-year warranty. 7 Dual filters including Sure Seat ™
protect high-pressure seat from debris for
Note: Body inlet is 1/4-inch NPT. reliable operation and long service life.
Model Stock Number Gas Max. Delivery Pressure Max. Inlet Pressure Outlet Connection Inlet Connection
Heavy-Duty Series 40 40-175-540 Single-stage Oxygen 175 psig (12 bar) 3,000 psig (207 bar) 9/16"-18 RH “B” CGA 540
Single-Stage 40-275-540 Single-stage Oxygen 275 psig (19 bar) 3,000 psig (207 bar) 9/16"-18 RH “B” CGA 540
Pressure Regulators
40-15-510 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 510
40-15-300 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 300
40-50-510 Single-stage LP gas (propane, propylene or natural gas) 50 psig (3 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 510
40-275-580 Single-stage Nitrogen 275 psig (19 bar) 3,000 psig (207 bar) 5/8"-18 RH internal CGA 580
Medium-Duty Series 30 30-100-540 Single-stage Oxygen 100 psig (7 bar) 3,000 psig (207 bar) 9/16"-18 RH “B” CGA 540
Single-Stage 30-20-540 Single-stage Oxygen 20 psig (1.4 bar) 3,000 psig (207 bar) 9/16"-18 RH “B” CGA 540
Pressure Regulators
30-15-510 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 510
30-15-300 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 300
30-15-520 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 520
30-15-200 Single-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 200
30-50-510 Single-stage LP gas (propane, propylene or natural gas) 50 psig (3 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 510
30-100-350 Single-stage Hydrogen/methane 100 psig (7 bar) 3,000 psig (207 bar) 9/16"-18 LH “B” CGA 350
30-150-580 Single-stage Argon/nitrogen 150 psig (10 bar) 3,000 psig (207 bar) 5/8"-18 RH internal CGA 580
30-150-320 Single-stage CO 2 150 psig (10 bar) 3,000 psig (207 bar) 5/8"-18 RH internal CGA 320
Medium-Duty Series 35 35-125-540 Two-stage Oxygen 125 psig (9 bar) 3,000 psig (207 bar) 9/16"-18 RH “B” CGA 540
Two-Stage 35-15-510 Two-stage Acetylene 15 psig (1 bar) 400 psig (28 bar) 9/16"-18 LH “B” CGA 510
Pressure Regulators
35-50-580 Two-stage Nitrogen/helium 50 psig (3 bar) 3,000 psig (207 bar) 5/8"-18 RH internal CGA 580
Heavy-Duty Series 46 46-175 Single-stage Oxygen 175 psig (12 bar) 200 psig (14 bar) 9/16"-18 RH “B” CGA 024 7/8"-14 RH “C”
Station Regulators 46-15 Single-stage Acetylene 15 psig (1 bar) 100 psig (7 bar) 9/16"-18 LH “B” CGA 025 7/8"-14 LH “C”
46-50 Single-stage LP gas (propane, propylene or natural gas) 50 psig (3 bar) 100 psig (7 bar) 9/16"-18 LH “B” CGA 025 7/8"-14 LH “C”
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