SeaStar Inboard/Sterndrive Tubing
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SEASTAR and BAYSTAR Hydraulic Steering Systems
Two types of tubing materials are available for plumbing Inboards
1) SeaStar 3/8" outside diameter nylon tubing
2) 3/8" outside diameter copper refrigeration tubing
SeaStar 3/8" outside diameter nylon tubing is recommended for;
b) Sterndrive, and
c) Seadrive steering systems with SeaStar (1.7 cubic inch/rev
displacement) helms only.
SeaStar 3/8" outside diameter nylon tubing is available in the
FEET (METERS) PART #’S
25' (7.6m) HT5092
50' (15.2m) HT5095
75' (22.8m) HT5097
100' (30.5m) HT5100
1000' (305.0m) HT5101
3/8" outside diameter copper tubing is recommended for;
b) sterndrive, and
c) seadrive steering systems with SeaStar (2.4 cubic inch/rev
displacement) helms only, or where the length of tubing run
exceeds 100 feet (30.5m).
Additional SeaStar hose kit part number HF5508 is required to
connect the tubing to the cylinder.
3/8" copper tubing should be obtained through a local vendor
based on the following tubing specifications.
Specification for copper tubing:
Soft annealed copper tubing, Type 'L' produced under ASTM D-280.
To determine the required
length of tubing for single
and dual configurations:
From the illustrations (figures A and B), select the situation which
best suits your application and note;
a) the type of drive system, and
b) the number of steering stations.
SeaStar 3/8" extruded nylon is
NOT recommended for use in
systems with SeaStar 2.4 or
SeaStar PRO helm pumps. It is
also not to be used in systems
where total tubing runs exceed
100', in these cases SeaStar
Outboard hoses and/or 3/8"
copper tubing must be used.
SeaStar Solutions recommends the use of SeaStar PRO (1500 psi)
reinforced Kevlar Hoses with
SeaStar PRO Helm systems