Styrene, polystyrene

Guichon manufactures valves specially adapted to the production of styrene and polystyrene :

Piston valve, Injection valve, Tank bottom valve

Piston valve
Type : 655M

DN 1/2" to 12" Class 150 to 1500 Lbs
– Cast construction
– Stainless steel, nickel alloys, special alloys (Titanium, Zirconium..)
Injection piston valve
Type : 659C

DN 1" Class 2500 Lbs
– piston type injection valve
– fully jacketed

Bottom outlet valve
DN 1" x 8" Class 300 Lbs

– Titanium (Ti)


  • Construction materials: Carbon Steel (CS), Stainless Steel (SS), Duplex & Super Duplex, Titanium, Zirconium, Uranus® B6, Tantalum, Nickel, Hastelloy®, Monel
  • Construction methods: Fabricated (Welded), Cast, Solid


  • Service conditions: High pressure, High temperature, Low temperature, Abrasion, Corrosion, High viscosity, Vacuum, Reliability, Low acoustic signature, Dead space free
  • Types of fluids: Liquids, Liquids with solid particles, Gas, Powder and powdery media, High viscosity fluids