Our heavy-duty Pump
Designed as a foot-mounted version of our API centerline-mounted Maxum OH2, the Maxum OH1 is an industry workhorse. The Maxum OH1 can be motor, engine, or turbine-driven and is ideal for water, hydrocarbons, caustic and acid applications. With hydraulic performance to 11,000 GPM and 720 feet of head, this pump family is available in carbon steel, 12% chrome, 316L and duplex stainless steel, according to standard API material codes. In addition to these, higher alloys such as Alloy 20, Hastelloy B or C, Monel and titanium are also available.
As standard these units come with oil-lubricated bearings with labyrinth isolators, and connections for temperature probes. Common options include various cartridge seals and API piping systems. Flanged or NPT auxiliary connections, cooling jackets, spacer couplings, and various levels of performance testing are also available, depending on users’ requirements. Available heavy-duty baseplates result in maximum flange loadings that meet or exceed the requirements of API 610. With some of the most efficient hydraulics in the industry, the Maxum series offers reliability, low lifetime cost, and lasting value that has made Carver one of the most trusted names in pumps.
Hydraulics
Flows To
11,000 GPM
2,498 m3/hr
Heads To
720 Ft
220 m
Efficiencies To
88%
Power To
900 HP
670 kW
Speeds To
3,550 RPM
Temperatures To
300°F
149°C
Hydraulic Coverage
Specifications
Materials of Construction
| Commonly Used Materials | WCB Carbon Steel, 12% Chrome, 316 SS and CD4MCuN Duplex |
| API Material Codes | S1, S3, S4, S5, S6, S8, S9, A8, C6, D1 and D2 |
| Severe Duty Materials | Hastelloy B, Hastelloy C, 254 SMO, 654 SMO and Titanium |
| Other materials available, including coatings and composites, to meet specific application requirements. |
Design Data
| Rotation | Clockwise from Fan End of Motor |
| Maximum Input | Power Capable of 1,500 HP @ 1,750 RPM |
| Connections | Class 300 ANSI Flanges |
| Bearings | Oil Lubricated |
Features
Connections
Class 300 ANSI flanges with centerline discharge assist in self-venting.
Wear Rings
Replaceable casing and backhead wear rings maintain efficiency and balanced axial loads.
Casing
Back pull-out design with registered fits and fully confined gaskets assure sealing and alignment of critical fits. Casing drains included as standard. Centerline mount options available in OH2 configuration.
Impellers
Enclosed, high-efficiency impellers balanced to ISO 1940, Grade G2.5 for vibration-free operation. All impellers are keyed to shaft.
API 610 Seal Chamber
Provides an ideal seal environment for both single/dual, pressurized/unpressurized cartridge mechanical seals. A full range of piping plans is also available to maximize seal life.
Bearing Frame
Heavy-duty bearing housing with cooling fins, fan and labyrinth seals keep oil clean and cool for greater bearing life.
Bearing Lubrication
Oil-lubricated bearings with standard flooded or optional flinger lubrication. Conversion to purge oil mist or pure oil mist is possible without additional machining.
Cooling Fan
Cooling fan allows ambient temperatures to 110° F and fluid temperatures to 300° F. The cooling fan also extends bearing life.
Shafts
Minimal shaft deflection extends mechnical seal and wear ring life.
