Pumps: Sulfuric Acid related categories
 | 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 - 18 gpm - AC ELECTRIC 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 6 - 38 gpm - AC ELECTRIC MOTORS
Suitable for a range of applications from commercial-size aquariums and D.I. water systems to etching equipment and electrical discharge machinery (EDM), Series 6 pumps are the only models in the March line equipped with a drip-proof motor (DP) as standard. Other motors are totally enclosed fan-cooled, single and three-phase and explosion-proof. All are rated at 1/2HP (.372 kw), 3450 rpm, 115/230-volt 50/60 Hz, single-phase or 230/460- volt three-phase, 50/60 Hz.
Series 6 pumps have a capacity of up to 38 GPM (110.5 LPM) with a maximum of 46 feet (11m) of head. They can be made compatible with a wide range of chemicals through a myriad of ′′O′′ rings, bushings and spindle material alternatives available. Models manufactured of Kynar® (PVDF) are particularly suited for difficult solutions, such as those based on halogens or chromic and sulfuric acids. Additional material options include glass-filled polypropylene, Ryton®, ceramic and Viton®.
Standard ports are a 1′′ FPT inlet with a 3/4′′ MPT outlet. Ports with a 1 -11 BSP female inlet and 1 1/4-14 BSP with ′′O′′ ring groove male outlet are available on special order. |
 | 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 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. |
 | SERIES 10 - 210 gpm - AC ELECTRIC MOTORS
The largest and newest chemical pump in the March product line, the innovative Series 10 is an ideal transfer pump for many strong acid and caustic chemical solutions, such as those based on halogens or chromic and sulfuric acids. Made of carbon-filled Kynar® plastic (PVDF), it is designed for complete chemical compatibility. Other materials include carbon-filled Kynar®, ceramic, and Viton®. Standard bushings are carbon.
Flow rates range from 50 GPM (175 LPM) minimum to 210 GPM (680 LPM) maximum. Head ranges from 0 to 170 ft. (35m) maximum. To insure smooth operation with various specific gravities over 1.0, the impeller magnet assembly may be trimmed to a minimum diameter of 5.250′′ (135 mm).
The electric motor drive is a 10 HP (7.45 kw), 230/460- volt three-phase, totally enclosed chemical duty motor. An explosion-proof 15 HP is available on special order. Standard port configuration is a 3′′ MPT inlet with a 2′′ MPT outlet.
Because the Series 10 pump is manufactured of only one material for some rather specific applications, the variations in bushings, thrust washer and static ′′O′′ rings are limited. A pump application questionnaire must be completed and submitted to the March Engineering Department to ensure proper job-specific design. |
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