SeaStar Solutions Catalog

73 ® HYNAUTIC 3-LINE HEAVY DUTY HYDRAULIC STEERING SYSTEM: SeaStar offers rugged 3-line Hynautic Heavy Duty steering systems for most work and pleasure vessels up to 70 feet. Heavy Du t y he lms comb i ne one o r two bi-directional axial piston pumps with pilot check and make-up check valving. The result is a unit which prevents rudder feedback, is very efficient (even at low RPM), and is immediately adaptable to multi-station use. A wide choice of helm displacements and cylinder configurations make it easy to spec a system which can handle a variety of large boat performance requirements and accommodate most user preferences. FEATURES: Low friction heavy duty hydraulic steering. Helm/cylinder combinations for most inboards. Marine grade materials. Heavy duty helms available in three displacements, to accommodate most applications and user preferences. Helms available with 1” straight shaft or 3/4” tapered. Mount facing any direction. Quick air purge relief valve. Fluid fill at remote reservoir. Heavy duty brass cylinders. Two-axis articulation. Easy installation for single or dual rudder vessels. Meets or exceeds applicable standards. Accepts most steering wheels. COMPONENTS Hynautic H-20 helm (1” straight shaft) H-21 or Hynautic H-20 helm (3/4” tapered shaft) H-25 or Hynautic H-40 helm (1” straight shaft) H-42 or Hynautic H-40 helm (3/4” tapered shaft) H-42-02 or Hynautic H-40 helm (1” straight shaft) H-41 or Hynautic H-40 helm (3/4” tapered shaft) H-41-02 H-20 Fittings Kit for Main Station HF-10 H-40 Fittings Kit for Main Station HF-21 Inboard Cylinder HC5350 Reservoir - Standard (2 quart) HP5810HY Relief Valve (950 PSI) MSV-21 Relief Fittings (1150 & 1175-21-1) MSVF-07 Relief Fittings (1175-42-1 & up) MSVF-13 Copper Tubing 1/2” or 5/8” OD Fitting Kit (for 1/2” Copper Tubing) HF5590 or Fitting Kit (for 5/8” Copper Tubing) HF5592 Hose Kit for Copper Tubing (2 hoses) HA5731 SeaStar Oil (1 Gallon) HA5440 OPTIONS Pivot Mount Inboard Cylinder K-31 Dual Cylinder Hose 2’ (.6m) HA5732 Dual Cylinder Hose 3’ (.9m) HA5733 Dual Cylinder Hose 4’ (1.2m) HA5734 Dual Cylinder Hose 5’ (1.5m) HA5735 Dual Cylinder Hose 6’ (1.8m) HA5736 Relief Valve (500 PSI) MSV-19 Reservalve (500 PSI, top read, 3/8) Obsolete Reservalve (500 PSI, top read, 3/8, w/pump) Obsolete Reservalve (500 PSI, top read, 5/16, w/pump) Obsolete Reservalve (950 PSI, top read, 5/16) Obsolete Reservalve (950 PSI, frt.read, 5/16, w/pump) Obsolete H-20 Fittings Kit for Second Station HF-11 H-40 Fittings Kit for Second Station HF-22 SERVICE ITEMS Relief Valve (500 PSI) MSV-19 Reservalve (500 PSI, top read, 3/8) Obsolete Reservalve (500 PSI, top read, 3/8, w/pump) Obsolete Reservalve (500 PSI, top read, 5/16, w/pump) Obsolete SeaStar Oil (1 Gallon) HA5440 HYDRAULIC STEERING - Inboard See Page 144