The Split-Wedge valve has countless applications in the petrochemical industry. Among the others, IMI Remosa is able to supply valves for Catalyst Reforming Units and for Steam Cracking Process.
Continuous temperature fluctuation, typical in a catalytic reforming unit due to the process operating cycles, generates high stresses in the valve body, which can cause surface cracking in a cast valve. The Remosa split-wedge valve is fabricated from forged material. This choice offers several advantages - higher material density, uniform structure and higher stress integrity.
The Split-Wedge is designed to resist the piping loads during unit Hot/Cold cycles when the valve body pushes against the wedge.
Wedge and seating ring surfaces are overlaid with Stellite in the contact area (seating rings / wedge and wedge / guides).
The valve stem is a one-piece forged shaft with anti-rotating device. No welded parts are added.
The valve will be supplied with the CE stamp in accordance with:
- the European Pressure Equipment Directive (PED: 97/23/EC);
- the European Directive for Equipment and Protective Systems in Potentially Explosive Atmospheres (ATEX: 94/9/EC);
- the Machinery Directive (98/37/EC).
This valve is designed according to:
- A.S.M.E. (American Society of Mechanical Engineers) B31.3 Process Piping Code;
- A.S.M.E. (American Society of Mechanical Engineers) Section VIII, Division 1, Boiler and Pressure Vessel Code;
- A.S.M.E. (American Society of Mechanical Engineers) Section VIII, Division 2, Boiler and Pressure Vessel Code Alternative Rules for Finite Element Analysis;
- A.P.I. (American Petroleum Institute).
- forged body and stem,
- bonnet lip seal,
- disc and seat surface hardfaced with Stellite,
- stem anti rotating device,
- bolted bonnet.
- bypass line,
- pressure seal bonnet,
- packing rings live load,
- limit switches.