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.

Dandong Runhe Seal Co.,Ltd. – Your Trusted Partner for Mechanical Seals 2026-03-20

We run two key divisions focused on mechanical seals and sealing systems. Our hardworking team earns customer trust daily. Contact us for professional support and reliable problem-solving.

Trust in Every Shipment 2026-03-19

We’re proud to deliver 36 cartons including Plan 52 and Plan 53B systems, built on customers’ trust and support. Thank you for choosing us. We welcome all your inquiries and cooperation.

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.

Runhe : Precision Manufacturing & Product Marking 2026-03-12

We specialize in precise product marking, adhere to strict standards, and strive for excellence. We warmly welcome global partners to visit and cooperate with us.

Dandong Runhe Seal Co., Ltd. School-Enterprise Cooperation Center 2026-03-11

Our center features 3/4/5-axis machining centers. Cooperation with universities boosts productivity and efficiency for both school and enterprise. We provide reliable mechanical seals and support systems.

Runhe Seal Production Workshop 2026-03-10

Our workshop runs efficiently with dedicated staff. We ensure high output and reliable quality, providing professional support for global purchasers.