Butterfly & Dual Plate Check Valve

The Worcot UK Triple-offset butterfly valve high-performance in a rotary package, Its patented seating concept and adjustable travel actuator reduces dynamic unbalanced forces and permits the tight shut off of Metal to Metal sealing.

Triple offset butterfly valves

Features

  • No friction – Long life seats
  • Bi-directional tight sealing
  • Geometry design angle cone disc sealing components
  • Zero leakage – API 598

Applications

  • Steam & Water Isolation & control
  • Extraction steam isolation
  • Oil & Gas isolation & control
  • General Services
  • Cryogenics

Design standard

  • ASME B16.34, API 600

Pressure classes

  • ASME 150 – 600

Sizes

  • 3” – 60” (80mm – 1500mm)

Materials

  • A216-WCB/WCC, A352-LCB, A351-CF8, A351-CF3 A351-CF8M, A351-CF3M, Alloy 20, Duplex, Super Duplex, Titanium, Other materials under request.

Actuator

  • Spring-diaphragm
  • Pneumatic Cylinder
  • Electrical Motorized
  • Electro-Hydraulic

Body type

  • Wafer, Lugged, Flanged

Industries

  • Power Plant
  • Petrochemicals
  • Oil & Gas
  • Desalination

Geometry

1st Offset
To allow displacement of the seat the shaft is offset from the center line of the seat and body seal.

2nd Offset – Double offset
The center line of the bore, this creates a cam action during operation to lift the seat out of the seal resulting on friction during the first opening and final closing.

3rd Offset – Triple offset
The third offset is the geometry design of the sealing components not the shaft positions, the sealing components are each machined into as offset conical profile resulting in a right angled cone.

The Worcot UK Butterfly valve produced can be used to petrochemical, chemical, water supply and drainage, pulp & paper, sugar mill and industries. In order to enhance the quality of valve. We are equipped with automated production, the introduction of high-precision end automated processing equipment and special automated monitoring equipment. We use of machining centers, CNC machines and other high- precision automated processing equipment and advanced multi-function computer test bench, test monitoring equipment to ensure product processing accuracy and interchangeability of the parts and components, thus ensuring the valves quality and reliable to use.

Metal seal / PTFE lined / Rubber lined

Features

  • Single & double offset designed
  • Seal clamped into valve body
  • Resilient seated, Metal seated, Fire-safe
  • Used for temperatures up to 900 °C in Metal seal design, 220 °C in PTFE design and 120 °C in Rubber lined
  • Designed as a low cost solution for controlling low temperature corrosive fluids
  • Body & shaft material are fully isolated from the process fluid
  • Suitable for isolation & control

Applications

  • Geothermal systems
  • LNG/Cryogenics
  • Cooling water isolation & control
  • Flue gas isolation & control
  • Process and Pipe line

Design standard

  • ASME B16.34

Pressure classes

  • ASME 150 – 900

Sizes

  • 2” – 64” (50mm – 1600mm)

Materials

  • Body : Carbon steels, Cast Iron, Ductile iron, Alloy steels, Stainless steels, Nickel Aluminum Bronze, Titanium
  • Disc : Ductile Iron, EPDM & PTFE Lining, Duplex, Nickel Aluminum Bronze, Other materials under request.
  • Seat : EPDM, NBR, Fluoro Rubber, PTFE, FKM, Carbon steels, Stainless steels, Duplex, Super Duplex, Incoloy, Monel, Inconel, Titanium, Other materials under request.

Body type

  • Wafer, Lugged, Flanged, Butt Welded

Industries

  • Power Plant
  • Oil & Gas
  • Petrochemicals
  • Desalination
  • Water work