Seal Auxiliary Systems & OEM Manufacturing 2026-03-25

We are a leading supplier of mechanical seal support systems. Our systems division produces high-quality mechanical seal auxiliary systems constantly, operates around the clock to meet global demand, and welcomes custom solutions.

What are the common types of pumps that use mechanical seals and seal support systems? 2026-03-21

Generally speaking, almost all chemical process pumps, oil pumps, high-pressure centrifugal pumps, high-temperature pumps, corrosion-resistant pumps, slurry pumps, and API610 pumps must use mechanical seals + seal support systems to achieve zero leakage, long service life, and safe & stable operation.

Professional Mechanical Seal Manufacturer | Dandong Runhe Seal Co.,Ltd. 2026-03-21

Professional mechanical seal manufacturer supplying cartridge type mechanical seals, Plan 72/76 auxiliary systems, quality elastomers, installation support and full technical details. Custom solutions available.

API Plan 52 Seal System in Production 2026-03-18

Our Plan 52 sealing system ensures stable, reliable performance and wide adaptability. With large global exports, it lowers costs and extends equipment life. Contact us for professional support and long-term cooperation.

API Plan 53B Systems in Production 2026-03-17

Our workshop runs at full capacity producing API Plan 53B systems. They feature high safety, stable operation, zero leakage, and easy maintenance. We welcome global partners for win-win cooperation.

Plan 32 Seal Flush System — Reliability for Harsh Conditions 2026-03-16

Plan 32 provides clean, cool, high-pressure flush to cool, lubricate, clean and isolate seal faces, greatly improving reliability and reducing equipment downtime.

Cartridge Mechanical Seals 2026-03-14

Our cartridge mechanical seals are pre-assembled for fast, easy installation. They eliminate human error, ensure stable performance, reduce leakage, and lower maintenance costs for pumps.

Plan 53B Pressurized Barrier System 2026-03-13

Our Plan 53B system delivers stable pressure control, zero emissions. It reduces downtime and is ideal for remote, unmanned, and hazardous fluid applications.

Spring Mechanical Seals – Reliable Sealing Solutions for Demanding Conditions 2026-03-09

Our spring mechanical seals deliver reliable sealing, adapt to extreme conditions, and offer stable, efficient performance for various industrial equipment.

API Plan 52 & Plan 53 Seal Support Systems 2026-03-07

We operate busy, high-volume production with strong orders. Strict quality control ensures reliable sealing solutions customers can trust worldwide.

Plan 21 & Plan 23 Heat Exchangers 2026-03-06

We are a trusted manufacturer with large-scale production capacity, supplying high-performance Plan 21 and Plan 23 heat exchangers for pumps worldwide.

Plan 32 Flushing System – Reliable Solution for High-Temperature Sealing 2026-03-04

Our Plan 32 Flushing System delivers stable external flushing for high‑temperature media over 300°C, ideal for safe and efficient mechanical seal protection.