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.

Runhe Sealing Auxiliary Systems – Professional Production & Service 2026-02-09

Explore Runhe Sealing’s professional production. We offer high-quality sealing solutions and look forward to cooperating with you.

Plan52: The Critical Support for Tandem Mechanical Seals 2026-02-07

Plan 52 is designed for tandem mechanical seals handling volatile, toxic hydrocarbons. It detects leakage via accumulator level and safely discharges leaked media through the exhaust line.

Understanding & Resolving Mechanical Seal Leakage 2026-02-06

This article outlines common mechanical seal leakage issues and four key leak points. Contact us for customized solutions to ensure stable operation and extended service life.

Working Principle of the 53B System 2026-02-05

The 53B system uses an accumulator to keep barrier fluid pressure higher, prevents leakage, alarms on major leaks, supports manual replenishment, and cools fluid via a heat exchanger or finned tube.

Plan 53A Seal Support System: Applicable Conditions & Working Principle 2026-02-04

This paper introduces the application scope of the Plan 53A system for hazardous and special process media, explains its working mechanism to prevent medium leakage to the atmosphere, and describes that seal leakage can be judged by the liquid level indicator of the liquid accumulator.