Fisher™ EHU Control Valve

Product Description

Fisher EHU valves are specially designed for severe service applications in urea plants. Urea and ammonium carbamate applications demand highly engineered valves in specialty alloys to provide long life in service. The EHU is engineered with specific features to provide long life and quick serviceability in the full range of applications found in urea synthesis processes. Combined with a special urea service version of the industry-leading Fisher™ enhanced ENVIRO-SEAL™ live-loaded, low emissions packing, the EHU valve provides a design with maximum corrosion-resistance, friendly maintenance and protection against packing leaks.

Charakterystyka

Forged Valve Body Design
Simple Maintenance - An optional removable bonnet and top-loaded plug of the EHU greatly improve maintainability by allowing top entry for simple removal and replacement of valve packing and plug/stem.
No Balance Seals - Eliminates any internal balance seals that may create crevice corrosion risks.
Exceptional Packing Service Life - Fisher enhanced ENVIRO-SEAL live-loaded packing systems offer excellent stem sealing capabilities with robust packing rings. The EHU offers a double packing set to reduce abrasion wear, and springs provide consistent packing stress through thermal cycles and as packing wears.
One-Piece Plug and Stem - The plug and stem are machined from a single piece of material, eliminating any threaded joints, welds, and pins.
Simple Trim Configuration - Metal sealing joints and no gaskets in the trim eliminate potential corrosion risks in urea plant applications.
Rugged Stem Guiding - The EHU features a heavy-duty guide bushing for stem stability.
Available Body Heat Tracing and Packing Flushing Connections.