Wyeco Control Valves

Wyeco Heat Medium 3-Way Control Valves

Wyeco actuators are designed compactly as multi-spring diaphragm operated type, ease of adjustment and permit high trust. They provide a compact design and high performance in conformity with general fluid service, i.e., steam, water, oil, gases. They provide lower seat leakage. They are molded in packing ring which are spring loaded and self-adjusting in the packing box.

Specification Type Diaphragm Operated three-way type

Material Cast iron (FC250), Carbon steel (SCPH2). Stainless steel (SCS13A, SCS14A, SCS16A). Cast hastelloy C Monel

End connection Flanged end (FF - RF) of Butt-welded type

Pressure Rating JIS10K - 20K; ANSI Class 150 - 300. DIN PN10 - PN16 - PN25


  • Standard - -17°C - +210°C
  • Radiator Fin - -20°C - +300°C
  • Extension - -196°C - +280°C
  • Bellows Seal - -196°C - +350°C

Gland packing V-Teflon, Grafoil.

Gaskets Non-asbestos, Teflon, Gylon, SUS316/Grafoil

Guiding Top Guide, Top and bottom guide.

Face-to-face ISO5752

Leakage class FCl70-2-2006


  • Stem: SUS304, SUS316, SUS316L
  • Valve Plug: V-Port, Quick Opening
  • Plug Characteristics: Linear & On-Off
  • Plug Form: Diverting Form, Mixing Form
  • Material: SUS304, SUS316, SUS316L, SUS420, Hastelloy C, B


  • Type: Multi-spring type single diaphragm actuated, direct or reverse.
  • Diaphragm Material: Neoprene with fabric insert.
  • Air Supply: 1.4, 2.4, 2.8, 3.2kg/cm2
  • Spring Range :0.2 - 1.0 kg/cm2, 0.4 - 2.0 kg/cm2, 0.6 - 2.2 kg/cm2, 0.8 - 2.4 kg/cm2
  • Ambient Temperature: -20°C - + 70°C

Valve Service Diverting Service, Mixing Service

Wyeco 3-Way Control Valves
Wyeco Medium Heat 3-Way Control Valves
Wyeco Medium Heat 3-Way Control Valves
Wyeco Medium Heat 3-Way Control Valves