FORESPAR'S® MARELON

INTEGRATED PLUMBING SYSTEM
Exceeding ABYC recommendations and meeting all UL standards; its unique design provides easy installation in a wide variety of valve configurations. It allows the OEM to design systems never before possible.

All Marelon® integrated valves are sold as a complete system. The assembly consists of thru-hull, valve body and tailpipe barb or female pipe thread end. The thru-hulls use a buttress style thread for exceptional strength and are not compatible with any other valves. Thru-hulls cannot be sold or used separately. All valves have one part number for the complete assembly. Each valve is factory assembled and pressure tested. Forespar® cannot be responsible for valves dissembled and modified or reassembled improperly.

In case of an emergency, all non-screened thru-hull style valves are supplied with a handle cap/bung that is designed to plug the thru-hull from the outside. The plug can be put in place while the vessel is in the water. The valve can then be removed from the king-nut and any blockage cleared. Warning - Never leave a boat unattended while bung is in place and valve is dissembled. The bung plug is for temporary use only. The bung can also be used during winter storage to keep debris from collecting or insects from nesting inside thru-hull.

Per ABYC/UL requirements, a flat surface approximately the same diameter as the king-nut is needed inside the hull for proper installation. Al valves are full port. The I.D. of the hose barb is carried thru the ball so there is no restriction of flow.

Temperature Range

-40°F to +176°F

-40°C to +80°C

LOCKING HANDLE OPTION

Locking handle option for integrated Seacocks 1" (25.40mm) through 2" (50.80mm) sizes.

Forespar® offers an optional locking plate at the factory on any "93" series Integrated Seacocks. These new locking plates allow the handle to be set in the closed position and a pad-lock used to positively lock the valve closed. This new feature will satisfy the USCG requirements for locking overboard discharge head system seacocks in the closed, no discharge position.

Note: Forespar does not supply the padlock. Valve locks are not sold seperately and are not a retrofit item.

"ANTI-VENTURI T-HULL" NEW

Custom tooled by Forespar®, these new thru-hulls have been tested on boats at varying rpm's and turn rates up to 45 mph. On a 3/4" generator intake line with this thru hull fitted, 0" to ~5" of vacuum was noted. This did not present a pressure situation which could potentially push water past the vanes of an older impeller and flood the cylinders or starve it of cooling water. The unique notch and lowered ramp in the leading edge (photo #1-front) provides a force-feed effect. To keep this force from overwhelming equipment impellers, the exit slot (photo #2-back) allows water flow to exit at a controlled rate. Installed and tested by the Monterey Boats team of engineers.

The new Forespar® "Anti-Venturi" head thru hull for use with the 1/2" and 3/4" Marelon® Integrated Plumbing Systems seacocks ("93" series flange style valves) is available now in 3/4". These have the Integrated Plumbing Systems buttress style thread-form to fit the Integrated System flanged seacocks only. To order this option on any flanged Marelon integrated valve add a "V" after the valves 6 digit part number.

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