Seafirst SHP Series Helm Pump (26cc / 1.6 cu. in. / rev)

Description

• Externally replaceable industry standard double lip oil seal
• Unique needle roller bearing support for steering shaft only seen in much larger pumps or more expensive designs
• “O-ringed” sealed case w/ large built-in reservoir
• Made from LUMID GP-2330A an Engineering Grade Glass Reinforced Copolymer
• Unique dual outputs that allow simple two-station and/or autopilot hook-up
• Extra Heavy Duty Aluminum billet machined valve block with standard 1/4″ NPT threads

Helm Pumps Overview

he designs of our pumps are uncompromising with engineering features typically only found in much larger and more expensive units. Simple and efficient, our two-line system does not require “pressurized air” to operate, and features a precision-made, ultra smooth, non-pulsating axial piston pump design, with a roller-bearing squash plate. These pumps easily adapt to most any non-power-steered vessel from 18 to 70 ft in both recreational and commercial applications.

Helm Pump Features

Hydraulic Valve Block – Extra Heavy Duty Aluminum billet machined valve block with standard 1/4″ NPT threads allow simple and easy connections to hydraulic lines. No “funny” adapters needed or prone-to-crack “pot-metal” castings. All pumps have a built-in internal relief valve for total system protection.

Output Ports – Unique dual outputs that allow simple two-station and/or autopilot hook-up eliminating an external “T”.

Lock-Valves – Built-in hydraulic lock valve allows any number of stations with automatic station change-over and eliminates un-wanted rudder feedback.

Pump Shaft – Oversized 22mm diameter stress relieved non-magnetic Stainless Steel in both standard and extended lengths. Industry standard 3/4″ steering wheel taper with common straight key design. No more lost woodruff keys and allows easy sleeve adaptation to 1″ bored steering wheels (available Seafirst adapter).

Pump Shaft Seal – Externally replaceable industry standard double lip oil seal.

Bearings – Unique needle roller bearing support for steering shaft only seen in much larger pumps or more expensive designs.

Housing design – “O-ringed” sealed case with large built-in reservoir. Vented and non-vented caps allowing horizontal or vertical mountings, multiple upper & lower stations, and remote reservoirs (if desired), with no gaskets to leak or deteriorate.

Case Material – Made from LUMID GP-2330A – An Engineering Grade Glass Reinforced Copolymer developed by LG Chemical Corporation. Impervious to saltwater environment with no more bubbling coatings or corroding pot metal cases.

Hydraulic Oil – Multiple fluid compatibility as SEAFIRST pumps operate on both Dextron ATF or other common hydraulic, aviation, or steering oils meeting MIL-H-5056. We recommend ATF for hot climates and the lighter Mil-Spec oils for colder climates. Mixing these oils is a non-issue with all SEAFIRST pumps or hydraulic cylinders.

Pump Dimensions