1-1/2" PTFE Ball Valve BSP MF 850


  • Size: 1-1/2"  (38.1mm)
  • Diameter: 3-1/2" (88.9mm)
  • Body Length:  5" (127 mm)
  • Length with handle:  7-1/2"  (190.5mm)
  • Thread: BSP
  • Female threads
  • Zero corrosion, zero electrolysis, light weight, strong marine grade
  • The temperature range of Marelon is: -40F to +176F or -40C to +80C

SKU: FS901038

$202.40
In Stock

type
Thread
Size

Forespar® MF 850 series of Ball Valves are precision moulded in Marelon®.

Great strength, light weight, easy installation and maintenance as well as freedom from corrosion and electrolysis creates the ideal valve for controlling inlet and outlet water flow above and below the waterline.

The operating temperature range of Marelon® is -40° F to +176°   (-40°c to +80°c), making the valves reliable in every climate and season.  

Marelon® Valves and Fittings
Almost all Marelon® valves, thru-hulls and fittings use NPSM parallel thread forms that require thread compound or Teflon® tape to seal. There are two exceptions to using parallel threads in Marelon®. Forespar's Marelon® “93 Series” plumbing system comes standard with buttress threaded thru-hulls that mate to buttress threaded valves. And Forespar Marelon® “HC Series” line of reducing tailpipes all employ true NPT tapered threads.

British vs United States Parallel Thread Standards

The American NPSM parallel thread standard has a thread flank angle of 60°. The British Standard Pipe, or BSP standard for parallel threads has a thread flank angle of 55°. Identification can also be made by inspecting the root and crest of the threads. The truncation of the root and crest of American standard threads are flat. The truncation of the root and crest of British standard threads are round. 

SKU: FS905104

Forespar® accepts no responsibility for valve or thru-hull components which are improperly installed, tampered with or have inadequate access for service and maintenance.

  • Thread size:  1-1/2"   38.1mm
  • Body diameter:   3-1/2"   88.9mm
  • Body length:  5"   127mm
  • Length with handle:  7-1/2"   190.5mm
  • Female threads
  • Zero corrosion, zero electrolysis, light weight, strong marine grade
  • The temperature range of Marelon is: -40F to +176F or -40C to +80C
SKU FS905104
Brand Forespar

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