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Durco sleeved plug valve

Flowserve invented the non-lubricated plug valve for the most corrosive and difficult chemical services where drop-tight shutoff is an absolute requirement. Nearly 50 years later there are many imitators but no substitute for the quality and reliability, versatility and value you receive with Sleeveline valves.

Durco valves offer the process industries widest range of non-lubricated plug valve models, materials, and configurations. This provides customers the flexibility to specify Sleeveline valves to meet virtually all their applications needs.

Flowserve has the answer to your corrosion-resistant, quarter-turn valving needs-whethe for on-off or modulating control.


  • Double-D Plug Stem is compatible with most standard actuation equipment.
  • Tapered Plug assures reduced turning torque and in-line seal adjustment.
  • PFA Reverse Lip Diaphragm Provides static and dynamic, self-adjusting stem seal.
  • Actuator Mounting Pads-Actuator bracket mounts directly on flanges for solid support.
  • Wide Materials Selection -Ductile iron through Titanium
  • ANSI or DIN flanges standard. N.P.T. screwed, socket and butt weld available.

Sleeveline new

Size Range: 15mm to 450mm
Body Material: Ductile iron, Carbon Steel, Stainless steel, Hastalloy and Monel
Plug Material: Ductile iron, Carbon Steel, Stainless steel, Hastalloy and Monel
End Connections: Screwed, Flanged, socket weld and Buttweld
Pressure Rating: 150LB/300LB


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