Process Valves > Ball Valves > Marwin Valve 5801

Marwin Valve 5801 Fire Safe Flanged Ball Valve

The Marwin 5801 is an API 607 certified fire safe flanged ball valve available in standard (5801R) or full port (5801F) construction.

The 5801 series has specially designed seats that provide tight shutoff and low torque. Standard features include dependable, fully contained double body seals, anti-static devices and blow-out proof stems.

The 5801F model valves have a full diameter, straight, construction-free flow path, giving about the same flow capacity as a similar size piece of pipe. Full port valves are used when flow capacity and pressure drop are critical, or when frequent cleaning with a flush or pig is required.

Key Specifications

  • Available in 1/2" (5801F) or 1" (5801R) to 8" valve sizes
  • Investment cast 2-piece bolted body construction
  • ASME Class 150 port rating
  • Blow-out proof stem
  • Reinforced PTFE seats
  • Adjustable, live-loaded graphite packing
  • API 598 inspection and testing
  • API 607 5th Edition fire tested
  • Locking lever operator

Supporting Documentation
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    • Type
    • Size
    • Document Name
    • Marwin 5801F ds
    • 293 KB
    • Marwin 5801F Full Port Fire Safe Flanged Valve Specification Datasheet
    • Marwin 5801R ds
    • 306 KB
    • Marwin 5801R Reduced Port Fire Safe Flanged Valve Specification Datasheet
    • Marwin 5801 I&M
    • 179 KB
    • Marwin 5801 Fire Safe Flanged Valves Installation and Maintenance Guide