Zwick’s Tri-Con triple offset valves deliver friction-free operation, zero-leakage performance, and exceptional reliability in severe service. Their rigid one-piece body and laminated metal sealing system ensure long service life under high pressure, temperature, and cycling demands. With bi-directional Class VI shut-off, fire-safe and fugitive-emission compliance, and optional Double Block & Bleed, Zwick provides a high-integrity isolation solution trusted across critical process, energy, and pipeline applications.
Zwick
Triple Offset – Tri-Con
Triple eccentric design delivering friction-free operation, zero leakage, and long service life even in severe applications.
Specifications
Size Range
2″ – 88″ (DN 50–2200)
Pressure Class
ANSI 150/300/600/900 and PN 10/16/25/40/63/100/160
Materials
Steel casting, Stainless Steel, Special Alloys
Trim
Laminated stainless steel seal & seat system
Construction
Rigid, heavy-duty one-piece body design
Design
Triple offset geometry; additional Zwick models include: Tri-Shark, Tri-Check, Tri-Block
Seat Inserts
Laminated seal ring, stainless steel seat
Certification
Fire-safe to BS 6755 and API 607 4th ed., Fugitive Emissions to TA-Luft II, SIL 3, EPA 21
Features
Full bi-directional shut-off per API 598 / DIN EN 12266-1; vacuum-tight; optional Double Block & Bleed; high-temperature capability to 815°C
Applications
Oil & Gas, Petrochemical, Chemical, Power, Refining, High-temperature and severe isolation duties
- 2″ – 88″ (DN 50–2200)
- Fully European
- Rigid, heavy-duty one-piece body design
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