Pumps: Stainless Steel, Metering related categories
 | SERIES 1 - 1.7 to 3.0 gpm - AC ELECTRIC MOTORS
Small but versatile, March Series 1 pumps can deliver a minimum of 1.7 GPM (7 LPM) up to 3.0 GPM (9 LPM). All Series 1 pumps are capable of serving applications with a maximum head of 4.5 ft. (1.3 m). at zero GPM (0 LPM). Applications include photographic processing equipment, refrigeration systems and water displays or fountains. Maximum recommended fluid temperatures are 190° F (87° C) for open-air models, or 130° F (55° C) for submersible models.
Series 1 pumps are available in both open-air and epoxy clad submersible models with a variety of options in both materials of construction and inlet and discharge ports. Options for wetted materials include polypropylene, Noryl® nylon, Buna N rubber and 316 stainless steel. Most models feature ceramic magnets and Chemloy® washers.
Series 1 pumps are supplied with 1/4′′ MPT, 3/8′′ (9.5mm) O.D. 1/2′′ (12.7mm) O.D. or screened inlets and 1/4′′ MPT, 3/8′′ (9.5mm) O.D. or 1/2′′ (12.7mm) O.D. outlets. A bulkhead style inlet is available on request. Pumps with 1/2′′ (12.7mm) O.D. or 1/4′′ MPT inlet and outlet will flow 3.0 GPM (9 LPM) maximum at zero ft. head, while pumps with 3/8′′ (9.5mm) O.D. inlet and outlet will flow 1.7 GPM (7 LPM) maximum at zero ft.
Series 1 pumps use 1/200 HP (.003 kw), 3200 rpm, 115- volt or 230-volt single phase, 50/60 Hz., air-cooled or epoxy encapsulated submersible motors (maroon in color), suitable for both open-air or submersible duty. |
 | SERIES MDX - 7.8 to 8.6 gpm - AIR MOTORS
Series MDX pumps can deliver a maximum flow of 8.6 GPM (38 LPM), are capable of serving applications with a maximum head of 19 ft. (4m) (26 ft. [9m] when driven by an air motor). Applications include coffee dispensers, aquariums, bio-medical, dryers, ice makers, electrostatic painting, photographic processing, and vending equipment.
Options for wetted materials include glass filled polypropylene, Ryton®, Kynar®, 316 stainless steel, and Buna N rubber for total chemical compatibility. Most models feature ceramic magnets and shafts and Viton® ′′O′′ rings.
Series MDX pumps are offered with a variety of inlet and outlet port types and sizes as shown. Contact the factory for other sizes and types of inlets and outlets.
Series MDX pumps use 1/50 HP (.014 kw) (1700 rpm) to 1/15 HP (.049 kw) (3450 rpm), 115- or 115/230-volt single phase, 50/60 Hz., air-cooled motors. Air motors rated at 1/8 HP (.093 kw) are also available for certain environments. |
 | SERIES MDX - 7.8 to 8.6 gpm - AC ELECTRIC MOTORS
Series MDX pumps can deliver a maximum flow of 8.6 GPM (38 LPM), are capable of serving applications with a maximum head of 19 ft. (4m) (26 ft. [9m] when driven by an air motor). Applications include coffee dispensers, aquariums, bio-medical, dryers, ice makers, electrostatic painting, photographic processing, and vending equipment.
Options for wetted materials include glass filled polypropylene, Ryton®, Kynar®, 316 stainless steel, and Buna N rubber for total chemical compatibility. Most models feature ceramic magnets and shafts and Viton® ′′O′′ rings.
Series MDX pumps are offered with a variety of inlet and outlet port types and sizes as shown. Contact the factory for other sizes and types of inlets and outlets.
Series MDX pumps use 1/50 HP (.014 kw) (1700 rpm) to 1/15 HP (.049 kw) (3450 rpm), 115- or 115/230-volt single phase, 50/60 Hz., air-cooled motors. Air motors rated at 1/8 HP (.093 kw) are also available for certain environments. |
 | SERIES 2 - 5.5 gpm - AIR MOTORS
Compact and adaptable to many applications, March Series 2 pumps can deliver a maximum flow of 5.5 GPM (18.5 LPM) and handle a maximum head of up to 13.5 ft. (2.7 m) (32 ft. [12 m] when driven by an air motor). Typical applications include etching equipment, photographic and graphic arts processing equipment, garden fountains, ice flakers, plate processors and marine air conditioning. Maximum recommended fluid temperatures are 190° F (87° C) for open-air models, or 130° F (54° C) for submersible models.
Series 2 pumps are available in both open air and epoxy clad submersible models with a variety of options in both materials of construction and inlet and discharge ports. Options for wetted materials include polypropylene, Noryl® nylon, Buna N rubber and 316 stainless steel. Blast-cooled models have a polypropylene encased impeller magnet. Most models feature Buna N rubber ′′O′′ rings. Inlet options are 3/8′′ FPT, 3/4′′ MPT or 3/4′′ (19mm) O.D. smooth, while outlets are offered as 1/4′′ MPT and 1/2′′ (12.7mm) O.D. smooth.
Series 2 pumps use 1/35 HP (.021 kw), 3200 rpm or 1/40 HP (.018kw), 3450 rpm 115- or 230-volt single phase, 50/60 Hz., air cooled or epoxy encapsulated submersible motors (maroon in color), suitable for both open air or submersible duty. Motors for submersible operation only are color-coded blue. Air motors rated at 1/8 HP (.93kw) are also available for certain environments. |
 | SERIES 2 - 5.5 gpm - AC ELECTRIC MOTORS
Compact and adaptable to many applications, March Series 2 pumps can deliver a maximum flow of 5.5 GPM (18.5 LPM) and handle a maximum head of up to 13.5 ft. (2.7 m) (32 ft. [12 m] when driven by an air motor). Typical applications include etching equipment, photographic and graphic arts processing equipment, garden fountains, ice flakers, plate processors and marine air conditioning. Maximum recommended fluid temperatures are 190° F (87° C) for open-air models, or 130° F (54° C) for submersible models.
Series 2 pumps are available in both open air and epoxy clad submersible models with a variety of options in both materials of construction and inlet and discharge ports. Options for wetted materials include polypropylene, Noryl® nylon, Buna N rubber and 316 stainless steel. Blast-cooled models have a polypropylene encased impeller magnet. Most models feature Buna N rubber ′′O′′ rings. Inlet options are 3/8′′ FPT, 3/4′′ MPT or 3/4′′ (19mm) O.D. smooth, while outlets are offered as 1/4′′ MPT and 1/2′′ (12.7mm) O.D. smooth.
Series 2 pumps use 1/35 HP (.021 kw), 3200 rpm or 1/40 HP (.018kw), 3450 rpm 115- or 230-volt single phase, 50/60 Hz., air cooled or epoxy encapsulated submersible motors (maroon in color), suitable for both open air or submersible duty. Motors for submersible operation only are color-coded blue. Air motors rated at 1/8 HP (.93kw) are also available for certain environments. |
 | SERIES 5 - 18 gpm - AIR MOTORS
March Series 5 pumps are ideal for a wide variety of applications involving highly corrosive chemicals, such as film processor chemical recirculation, refrigerators, small scrubbers and detergent mixers. Models constructed of Kynar* are typically used in the plating industry to pump strong halogen solutions and concentrated chromic or sulfuric acids. They are also excellent choices for computer cooling, carbon arc furnace cooling and marine air conditioners.
Series 5 pumps are rated up to 18 GPM (60.5 LPM) flow and for heads up to 29 ft. (6.3m) (50 ft. [16m] when driven by an air motor).
Variations in wetted materials on the Series 5 are some of the widest in the March line, affording maximum compatibility with a wide variety of solutions. These materials include polypropylene, Ryton®, carbon-filled Kynar, 316 stainless steel, ceramic, Buna N rubber, and Viton®. Carbon bushings are also available, which also afford a dry run capability not found in other models. The impeller diameter may be trimmed to enable efficient use with solutions with a specific gravity in excess of 1.0.
14.5 to 18 GPM (60 to 60.5 LPM) models utilize 1/8 HP (.093 kw), 2800 or 3200 rpm, submersible or air-cooled 115-volt, single phase, 50/60 Hz. motors. 18 GPM (60.5 LPM) models have a 1/5 HP, 3450 rpm, 115/230-volt, single phase, 50/60 Hz., totally enclosed fan-cooled motor. Air motors rated at 1/8 HP (.093 kw) are also available for certain environments. Explosion-proof motors are also available. All series 5 pumps except stainless steel are available with either threaded or hose type connections. The stainless steel version has threaded connections. Flanged connection can be special ordered. |
 | SERIES 5.5 - 30 gpm - AC ELECTRIC MOTORS
The 5.5 series pumps are the first in the March product line to employ an involute design with a closed impeller magnet assembly. They can deliver a maximum flow of 30 GPM (110 LPM), and are capable of serving applications with a maximum head of 41 ft. (9m). Able to handle chemicals of all kinds at temperatures up to 190° F (87° C), uses range from icemakers to film processors and silver recovery systems. Units with Kynar® plastic construction can handle strong halogen solutions and certain chromic or sulfuric acid solutions. Other options for wetted materials include glass filled polypropylene, ceramic, Viton® and 316 stainless steel. Optional bushings, ′′O′′ rings and spindle combinations are available.
Drive motors are a 1/5 HP (.149 kw), 3200 rpm, 115-volt single phase air-cooled or a 1/3 HP (.248 kw) 3450 rpm, 115/230-volt single phase or 230/460-volt three-phase totally enclosed, 50/60 Hz. motor. Explosion-proof motors are also available. Standard port configuration is a 1′′ FPT inlet with a 3/4′′ MPT outlet. |
 | SERIES 7 - 53 gpm - AC ELECTRIC MOTORS
Series 7 totally enclosed pumps, with capacities up to 53 GPM (180 LPM) or a maximum 60 ft. (12m) head, are the ′′workhorses′′ of the March product line. Typical applications include computer cooling, photo processing, graphic printing, ion exchange recovery/ development, and aquariums.
The standard motor used in Series 7 pumps is a true 3/4HP (.558 kw). In addition, a 1 HP and 1 1/2 HP motor can be supplied, as well as various explosion-proof and chemical duty motors. A 1 HP self-priming model, with a suction lift capability of 10 ft. (3m), may be specified for applications where gravity feed is not available. Installations using such motors require no openings in the side of the fluid container.
Various specific gravities can be handled by trimming the diameter of the impeller magnet assembly. The standard 3.750′′ impeller may be reduced in size to a 3.125′′ to accommodate specific gravities of up to 2.0. The front impeller shroud can be removed for special applications.
Wetted materials are made of polypropylene, with the exception of the rear housing, which is manufactured of Ryton® for additional strength. Additional options for wetted material include all polypropylene, ceramic, all Kynar® (ideal for handling difficult liquids such as strong halogen, chromic or sulfuric acid solutions), Viton®, 316 stainless steel and Hastelloy®. Bushing material (the selection of which depends on the nature of the solution being pumped) ranges from standard carbon to mica-filled Teflon® and a Teflon®/Rytons/carbon composite. To insure complete material/solution compatibility, a variety of spindles are also available. A ceramic spindle is standard, while stainless steel and Hastelloy® are also available. Each can handle solutions that contain minute solids.
Standard ports are a 1 1/2′′ FPT inlet with a 1′′ MPT outlet. Ports with a 1 1/2-11 BSP Female inlet and 1 1/2-BSP with ′′O′′ ring groove male outlet are available on special order. |
 | SERIES 7 - 53 gpm - SELF-PRIMING CENTRIFUGAL PUMPS
Series 7 totally enclosed pumps, with capacities up to 53 GPM (180 LPM) or a maximum 60 ft. (12m) head, are the ′′workhorses′′ of the March product line. Typical applications include computer cooling, photo processing, graphic printing, ion exchange recovery/ development, and aquariums.
The standard motor used in Series 7 pumps is a true 3/4HP (.558 kw). In addition, a 1 HP and 1 1/2 HP motor can be supplied, as well as various explosion-proof and chemical duty motors. A 1 HP self-priming model, with a suction lift capability of 10 ft. (3m), may be specified for applications where gravity feed is not available. Installations using such motors require no openings in the side of the fluid container.
Various specific gravities can be handled by trimming the diameter of the impeller magnet assembly. The standard 3.750′′ impeller may be reduced in size to a 3.125′′ to accommodate specific gravities of up to 2.0. The front impeller shroud can be removed for special applications.
Wetted materials are made of polypropylene, with the exception of the rear housing, which is manufactured of Ryton® for additional strength. Additional options for wetted material include all polypropylene, ceramic, all Kynar® (ideal for handling difficult liquids such as strong halogen, chromic or sulfuric acid solutions), Viton®, 316 stainless steel and Hastelloy®. Bushing material (the selection of which depends on the nature of the solution being pumped) ranges from standard carbon to mica-filled Teflon® and a Teflon®/Rytons/carbon composite. To insure complete material/solution compatibility, a variety of spindles are also available. A ceramic spindle is standard, while stainless steel and Hastelloy® are also available. Each can handle solutions that contain minute solids.
Standard ports are a 1 1/2′′ FPT inlet with a 1′′ MPT outlet. Ports with a 1 1/2-11 BSP Female inlet and 1 1/2-BSP with ′′O′′ ring groove male outlet are available on special order. |
 | SERIES 8 - 125 gpm - AC ELECTRIC MOTORS
March Series 8 totally enclosed pumps, with standard wetted parts of glass-filled polypropylene, carbon-filled Kynar® and 316 stainless steel, are the ideal choice for handling difficult liquids, such as strong halogen or chromic, and sulfuric acid solutions. Typical applications range from computer cooling systems and waste treatment plants to plating operations, photo processors and chemical plants.
Flow rates range from 25 GPM (90 LPM) minimum to 125 GPM (400 LPM) maximum at heads from 0 ft. to 95 ft. (20m) maximum.
Standard bushing materials include carbon, Teflon®/ Rytons/carbon composite and mica-filled Teflon®. These may be used with either glass-filled polypropylene, Kynar® or 316 stainless steel impeller magnet assemblies to insure complete chemical compatibility. The standard spindle for all three models is ceramic, while Hastelloy® and stainless steel are available on special order for enhanced chemical resistance. Both the front and rear thrust washers are available in ceramic, Hastelloy®, or (exclusive to Series 8 and Series 10 models) silicon carbide. Viton®, ethylene propylene or Teflon® ′′O′′ rings are available to further ensure chemical compatibility.
Available 3450 rpm totally enclosed drive motors are the standard 3HP (2.235 kw), three-phase 230/460-volt and the 5 HP (3.725 kw), three-phase 230/460-volt explosion- proof model (used in the stainless steel pump). A steel frame totally enclosed motor that is not chemical-resistant is also available. Standard port configuration is a 2′′ MPT inlet withal 1/2′′ MPT outlet. |
 | HYDRONIC PUMPS SERIES 821 - 22 gpm - AC ELECTRIC MOTORS
The Ultimate in Reliability in Circulating Pumps for Industrial/Hydronic/Solar Applications.
Depending on application, March hydronic pumps are available in a variety of materials, including plastic, bronze, stainless steel, and cast iron. Specific models are designed to operate with fluid temperatures as high as 350° F (176° C), such as in hot water systems or with hot oil for food products. Special designs can withstand temperatures up to 500° F (260° C).
Models are available for use on 12- and 24-volt DC systems (for uses such as heating systems on public buses) as well as 115- or 230-volt AC systems (popular for use in domestic, industrial and commercial hot water and solar heating applications). Maximum flow rates range from 5.5 GPM (13.7 LPM) to 7.5 GPM (.22 LPM) for DC-powered units, and from 4.5 GPM (13.7 LPM) to 8 GPM (28 LPM) with AC-powered models. Because the motors can be removed without draining the system, service is greatly simplified.
Larger pumps are available with either flange or threaded inlets and outlets.
Note: Pumps are available with 50 or 60 Hertz motors. |
 | SEAL TYPE PUMPS - AC ELECTRIC MOTORS
Compact and inexpensive, March Seal-Type pumps can deliver a maximum flow of 6.5 GPM (18.5 LPM) and handle a maximum head of up to 12.5 ft. (2.7 M). Typical applications include advertising displays, ice flakers, icemakers and machine oiling systems. Maximum recommended fluid temperatures are 130° F (54° C).
Seal-type pumps are available in both open air and epoxy clad submersible models. Options for wetted materials include NoryP, Delrin®, nylon, Viton®, stainless steel, cork and neoprene. A Viton® rubber spring loaded lip seal prevents the liquid from entering into the sealed motor area. Inlet options are 3/8′′ FPT, 3/8′′ MPT while outlets are 1/4′′ MPT.
Seal-type pumps use 1/75 or 1/35 HP (.009 to .021 Kw), 3200 rpm, 115 volt single phase, 50/60 Hz., epoxy- encapsulated submersible motors (maroon in color), suitable for both open air or submersible duty. Motors for submersible operation only are color-coded blue. |
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