Industrial Spring Mechanical Seals 2026-03-03

High-performance spring mechanical seals designed for durability, safety, and reliable operation in demanding industrial conditions.

Plan 21 & Plan 23 Heat Exchangers for Mechanical Seal Systems 2026-03-02

Our Plan 21 and Plan 23 heat exchangers protect mechanical seals in pumps and extend their service life

Plan 32 External Flushing System for High-Temperature Media 2026-02-28

Plan 32 is an external flushing system for high-temperature media over 300℃, using diesel or wax oil. It ensures stable and safe operation for your mechanical seals.

Local Government Officials Visit Dandong Runhe Seal Co., Ltd. 2026-02-27

Local government officials visited Dandong Runhe Seal Co., Ltd. They recognized our achievements in mechanical seals. We will keep innovating for long-term development.

R550 Series Mechanical Seal 2026-02-26

With external spring structure, R550 excels in harsh, particle-laden and high-viscosity conditions where R8 & R45 series seals cannot perform well.

Professional Mechanical Seal Support Systems Engineered for Reliability & Long Service Life 2026-02-25

Our high-efficiency workshops operate at full capacity, guaranteeing stable quality, on-time delivery and trusted reliability for global clients.

Professional Mechanical Seal Support Systems Built for Reliability & Long Service Life 2026-02-24

We provide reliable modular mechanical seal support systems with premium materials, strict quality control, and stable performance for global industrial customers.

We’re Back in Business – Spring 2026 2026-02-23

We have fully resumed operations from Feb 23, 2026. Our production and service teams are ready to support your inquiries and orders efficiently.

Chinese New Year Holiday Notice 2026 2026-02-11

We will be closed for Chinese New Year from Feb 15–22, 2026. We provide API Plans mechanical seals and seal support systems for industrial equipment. Welcome to make inquiries to us at any time.

High-Efficiency Carbon Steel Heat Exchanger for Seal Cooling 2026-02-11

RHRL series heat exchangers are designed for mechanical seals, effectively cooling high-temperature media to protect seals and ensure stable, reliable operation with extended service life.

Multiple Spring Mechanical Seal 2026-02-10

This multiple spring mechanical seal reliably seals clean or low-particle media. It features uniform load, low friction, maximized sealing area and easy installation for pumps and rotating equipment.

Seal Support Systems: Extend Seal Life & Cut Downtime | API Plan 52 & 53 2026-02-09

Dandong Runhe Seal Co., Ltd is a Chinese famous manufacturer of mechanical seals and Seal Support Systems for rotating equipment such as pumps, compressors, reactors, agitators, mixers, etc. integrating design, R&D, manufacturing, sales and service. We provide custom solutions, reliable quality, and global support.