1. Erosion: Hard fluid erosion damages sealing surfaces.
2. Abrasive: Solid particles can enter and damage the sealing surfaces.
3. Jamming: Solid particles accumulate inside valve pocket, increase valve operating torque, resulting valve jamming and even cannot be operated.
Erosion & Wear Resistance (Key to long service life under severe conditions) ● Solid sintered Carbide Disc & Seat: Engineered with solid sintered carbide construction for exceptional erosion resistance, high hardness (≥85 HRA), and superior corrosion protection. ● Hardened Flow Path: Features either flame-sprayed hardening or full carbide liner for sustained integrity. ● Self-rotating and self milling trim: Rotating mechanism continuously mills sealing surfaces, a good compensating for wear. ● Scraper design: Scraper design prevents particle entering sealing surface. ● Sliding Motion: Disc is parallel to seat, eliminating high-impact erosion from sudden flow re-direction. Preventing Buildup Prevents Jams ● Open valve pocket Design: Maximizes media flow-through. ● Standard Purge port design: End user can design purging system to avid solid medium accumulation by purge port.
Для справки
Equipment: Polysilicon Cold Hydrogenation Specifications: NPS 2, Class 300 Medium: Silicon Powder, Hydrogen Application: Commissioned in 2019; operated for 3 years with zero issues