Forespar MF850 Marelon Threaded Ball Valve

Forespar's MF 850 series of Ball Valves are precision molded in high strength Marelon. Their great strength, light weight, and complete freedom from corrosion and electrolysis make them the ideal valve for controlling inlet and outlet water requirements above and below the waterline.

Forespar engineers opened and closed one of their 3/4"(19.05 mm) valves 11,000 times, then submerged it in water with an air line pressurized to 40psi connected to it. The result was an absolutely leak free condition with no evidence of internal seal wear.

Marelon® is a proprietary formulation of polymer composite compounds and Marelon fittings are popular with many top quality boat builders worldwide. These fittings may be used above or below the waterline and will remain free of corrosion.

Features:

• Marelon® is a proprietary formulation of polymer composite compounds using composite reinforced polymer and additives to produce a superior marine-grade product
  • Designed for use above and below the waterline
  • Complete freedom from corrosion
  • High strength
  • UV Stabilized
  • Will not freeze or become brittle with age or temperature extremes
  • U.L. and A.B.Y.C. approved
  • Marelon fittings can be installed using the same techniques and materials as bronze fittings
  • Operating Temperature Range: -40° F to +176° (-40°c to +80°c)

Marelon Information Guide

Installation Guide