Furuno CH-500 Installation Manual page 73

APPENDIX 2 HOW TO MAKE THE RETRACTION TANK FOR WOODEN VESSEL
Name Material
Flange-1 SS400
Fixing pipe SS400
C1
Angle-1 SUS304-CP
Thickness
More than
20.0 mm
C1 C1
More than
7.0 mm
(232)
≥ 7
(M215x4)
C3
(230)
4.0 mm
42
26
Drill the pilot holes for the M12 nut (Ø15,
2 locations), then weld the hex. weld nuts.
Qty
1 Inside diameter: Same as the outside di-
ameter of the fixing pipe.Outside diameter:
343 mm
8 × Ø23
45° 45°
1 Inside diameter: 10 mm smaller than the
outside diameter of the PVC pipe.
Prepare a thread groove that is suitable for
the thread groove of the PVC pipe.
4 Welded to the flange-1.
42
Remarks
AP-3