HD Series Helms

HYDRIVE ADMIRAL HD SERIES HELM UNITS

Intelligent and efficient internal design ensures optimum performance and maximum durability under the most extreme conditions.

HyDrive has released a new range of manual helm units with increased capacity, and incorporating some of the unique design features that made the “2000 Series” helm units the most awarded steering design in marine history.

The 2000 Series helms have proven their performance over the last 37 years and have received 5 awards for design excellence. The unique anti-wear porting design has been retained in the new HD series, making them arguably the most durable and efficient pump in their class.

The new HD Series helms with an increased efficiency rating of around 30%, are available in a wider range of displacements to meet the increasing demand for larger manual hydraulic steering systems.

The new models are fully interchangeable with the older HyDrive models, and due to technology used, the helm units are more compact in size than their predecessors.

Designed for use with the HyDrive HD Series cylinders, multiple steering stations are simple to install, and offer a range of torques from 100KgM to over 2600KgM making them suitable for most vessels up to 50 Metres.

• Stainless steel shafts
  
• Fully chromate-converted aluminium housing, coated in
• polyurethane for maximum corrosion resistance
• Fully pressure-compensated for wear resistance
  
• High pressure rating
  
• High safety factors
  
• Designed for use with HyDrive ULTRA-15 hydraulic fluid

Model 103 - 105

These helms are supplied with fittings to suit 1/2” copper tubing only.

Model 103 Helm units are supplied with 3/4” taper shafts as standard. Parallel shafts are available as an option.

Model 104 and 105 units are supplied with 1” Parallel shafts as standard. 3/4” taper shafts are available as an option on model 104 only.

Model 106 - 107

These helms are supplied with 1” parallel shafts and fittings to suit 5/8” diameter copper tubing only.

Model 103 to 107 do not have in-built lock valves. When used in dual stations they require the use of lock valves to prevent counter-rotation. Should feed-back be required on one or both stations, one of the manual or electric locking options should be used. (See section on feedback options)

DISPLACEMENTS

Model 103 - 2.00cu ins (35cc) per rev
Model 104 - 2.6 cu ins (43cc) per rev
Model 105 - 5.2 cu ins (86cc) per rev
Model 106 - 7.5 cu ins (125cc) per rev
Model 107 - 10 cu ins (165cc) per rev

Manual Emergency Steering for Power Assisted Systems.

The HyDrive HD Series helm units are ideally suited for use with large power steering systems and can provide emergency manual backup steering at working pressures up to 1000psi. These helms install into the power steering circuit and are isolated by means of 3-way ball valves until required in order to maintain total system integrity. For emergency use, they are fully compatible with most hydraulic fluids used in power-assisted systems.