Even the strongest hot runner systems are only as dependable as their seals.

We offer an extensive selection of hot runner O-rings and seal kits designed for leak-resistant performance, thermal stability, and long service life without OEM price tags or delays.

Seals keep your process clean, stable, and consistent. When piston seals fail, you get drip, pressure loss, and drastically shortened tool life. Don’t let a sealing failure take down your product quality or your production schedule.

No matter your system, our inventory includes standard and custom solutions for every nozzle and every challenge.

Seal performance directly affects process stability, leak prevention, and long-term hot runner reliability.

PCT offers a wide array of seals for ALL Hot Runner systems.

Our kits are precision-engineered using:

• Viton™ O-rings with graphite/PTFE sleeve for enhanced wear and thermal control
• Viton™ encapsulated in PTFE for chemical resistance and minimal friction
• Vented stainless-steel seals to shed pressure and prevent nozzle housing leaks
• Grafoil (graphite) seals to manage thermal flow and hot zone heat distribution
• Metal C-ring seals for heavy-duty leak prevention under extreme condition loads

In addition to standard piston rings, we offer a wide array of different seals:

Vented stainless steel seals used under the nozzle housing to insure against leakage

Grafoil seals used to contol heat flow in the system

Metal C-ring seals used to insure against leaking