Plug Valves

Plug Valves with PTFE Sleeve

Excellent Suitable for difficult chemical and process industry applications, for shutting off piping, pumps, liquid tanks, reactors and other critical applications.

  • PN10-40
  • ANSI150-300
  • DN15-450 1/2"-18
  • T(°C)-30 bis +204
  • Design:1-piece , Top-Entry,Multiport, Special Solutions
  • Materials:Cast, steel, stainless steel, alloy steel, special materials
  • Connections:Flanged, Buttweldends, Threaded, Socket Weld, Special Connections
  • Seats / SealPTFE

Durco G4 Gaskets provide a better seal in the passageway than other comparable on / off valves and provide equivalent or superior emissions protection compared to custom-made high-duty specialty valves. They are ideal for difficult chemical and process applications, for shutting off piping, pumps, liquid containers, reactors, and other critical applications. G4Z series stopcocks are fireproof unlike the standard G4 and G4E models. The tap G4Z-HF is intended for example for alkylation plants with UOP / Phillips license in refineries. G4Z and G4EZ and G4EBZ refractory valves are provided with special Grafoil ring packing on the spindle and Grafoil gaskets on the upper fitting cover, limiting any air infiltration to an insignificant extent in the event of destruction of the PTFE bush and diaphragm by fire. If the upper seal is destroyed, the Grafoil pack is held in place by a metal diaphragm.

Contact Form

    Our Services

    Valves/Fitting service

    We ensure maintenance work on Valves and Fittings.

    This also includes adjustments, actuators and tests for new and used Valves/Fittings.


    Worldwide, longstanding best international connections and experienced employees guarantee flawless and reliable deliveries.

    Short-term availability

    Central and decentralized warehouses allow fast delivery of standard - industrial Valves and accessories, etc. Gate, Globe und Check, Butterfly valves, Ball valves, Glass level gauges and flow indicators, spare parts, from case to case also package deals

    Do You have Questions? Contact
    us from Monday to Friday from
    8 a.m. to 6 p.m.

    This site is registered on as a development site.