Marwin 3000 Series Fire Safe Valves -Marwin Valve, div. of Richards Industries | Linquip

Marwin 3000 Series Fire Safe Valves

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The 3000 Series soft seat valve is engineered for high pressure applications and has built-in versatility, offering a variety of seat/seals, body materials and end connections. It is ideal for applications with pressures up to 4000 psi (275 bar) and temperatures to 600°F (315°C). Available with integral extended ends with "heat sink" construction allowing in-place welding without damage to seats and seals.
  • Up to 4000 psi service

  • Special bar stock body material options including Alloy 20, Duplex, Hastelloy C, Monel, Titanium, 354 SMO, Bronze and others

  • Special end connection options, including extended weld ends, RTJ flanges, DIN flanges, SAE Code 61/62 flanges, SAE O-ring, Grayloc, tube end and others

  • ISO 5211 mounting pad

  • Triple sealed blow-out proof stem

Marwin 3000 Series Fire Safe Valves Specifications:

  • Max. working pressure (bar)

  • Maximum Temperature (C)

  • Minimum Temperature (C)

  • DN from

  • DN to

  • Pressure Nominal to (bar)

  • Class to

  • Sealing material

    PTFE, Graphite, and others
  • NPS from

  • NPS to

  • Actuator Type
    manual lever with optional lock
  • Certifications
    ISO 9001:2008, API 607 4th Edition
  • Connection Type
    flanged, NPT, weld, custom
  • Design standard
    ASME B16.34, ASME B16.5, ASME B1.20.1, ASME B16.11
  • Body Style
    3-pc, non swing-out design
  • Body Material
    standard and special allooys
  • Other parts' material
    stem material: standard and special allooys l Ball seats / thrust washers: PTFE and others l Stem packing: adjustable, live faded PTFE or Graphite
  • Ball material
    standard and special allooys
  • Pressure Class
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