Viking Internal Gear Pumps - Universal Seal (O-Pro)
Viking 1124A, 1124C, and 1127C series internal gear pumps feature the revolutionary O-Pro Barrier seal technology. This FKM elastomer barrier seal eliminates the need for traditional packing or mechanical seal maintenance, delivering a truly maintenance-free sealing solution. Flow rates range from 8 to 400 GPM (cast iron) and up to 320 GPM (stainless steel) at pressures up to 200 PSI. Operating temperatures from 0°F to +350°F and viscosity from 100 to 2,000,000 SSU. Jacketed variants (1224A/C, 1227C) are available for temperature-sensitive applications. No external flush required.
Manufactured by Viking Pump Inc. (IDEX Corporation), Cedar Falls, Iowa, USA, the O-Pro Barrier seal series represents a breakthrough in pump sealing technology. The O-Pro seal uses FKM elastomer elements that provide a reliable barrier between the pumped fluid and the atmosphere — without the complexity, maintenance, and failure modes of traditional mechanical seals or packing. This means no seal flush systems, no adjustment, and no scheduled seal replacement. The result is dramatically reduced maintenance costs and downtime. Ideal for adhesives, starch, polymers, food-grade products, and any application where seal maintenance is a recurring problem.
O-Pro Universal Seal Series Range
| Series | Material | Flow Range | Jacket |
|---|---|---|---|
| 1124A | Cast Iron | 8–400 GPM | No |
| 1124C | Cast Iron | 8–400 GPM | No |
| 1127C | Stainless Steel | Up to 320 GPM | No |
| 1224A/C | Cast Iron | Up to 400 GPM | Yes |
| 1227C | Stainless Steel | Up to 320 GPM | Yes |
Download Internal Gear Pumps - Universal Seal (O-Pro) Brochure
Detailed technical specifications, performance curves & selection guide
General Specifications
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