Dandong Runhe Seal Co., Ltd– Custom Mechanical Seal & Auxiliary Seal System Supplier 2026-11-02

Founded in 2008, Runhe supplies reliable customized mechanical seals and seal support systems for petroleum, chemical, pharmaceutical and many other key industrial sectors worldwide.

Heat Exchanger Sizing: Six Core Factors for API Plan 21 & Plan 23 2026-10-29

We illustrate six core factors for heat exchanger sizing of API Plan 21 and Plan 23 to avoid overheating and protect mechanical seals within pump applications.

Relocation of Measurement Area | Dandong Runhe Seal 2026-10-23

Dandong Runhe Seal moved its measurement zone to the seal division area to streamline workflow and speed up mechanical seal customization and technical support for global clients.

Bladder Accumulator Sizing for API 682 Plan 53B 2026-10-21

The bladder accumulator size for API 682 Plan 53B depends on barrier fluid volume, operating pressure range and temperature to maintain 28-day refill-free stable mechanical seal operation.

API 682 Plan Series Seal Support Systems from Runhe Seal for Complex Working Conditions 2026-10-19

Runhe Sealing supplies API 682 Plan series seal support systems with Plan52/53A/53B configurations for various pressure and medium conditions to tackle tough sealing challenges of industrial pumps.

Invitation | Dandong Runhe Seal at CFME 2026 Shanghai Fluid Machinery Exhibition 2026-10-16

Dandong Runhe Seal invites you to CFME2026 Shanghai. View API mechanical seals & Plan53A/53B systems at Booth 4.1H-H09, Oct 21–23.

Factory Inspection Process of Mechanical Seal Support Systems | Strict Quality Control, Precision Delivery 2026-10-14

Runhe conducts strict full inspection on mechanical seal support systems, covering materials, welding, instruments and custom requirements to ensure stable quality and standard delivery.

Application Fields of Mechanical Seals 2026-10-09

Mechanical seals secure rotating equipment across multiple industrial sectors, reduce fluid leakage and meet safety‑environmental standards. Contact us for tailored mechanical seal solutions for your process conditions.

What is the Difference Between Plan 52 and Plan 53A Mechanical Seal Support Systems? 2026-10-07

Learn core differences between Plan 52 and Plan 53A systems, including sealing principle, face cooling, pressure control and hazardous medium application.

Mechanical Seal Packaging & Shipment Area Ready for Delivery | Dandong Runhe Seal Co.,Ltd. 2026-10-07

Dandong Runhe Seal Co.,Ltd. supplies API 682 mechanical seals and supporting auxiliary systems including Plan 21/23/32/52/53A/53B,etc. All mechanical seals pass strict pre-packing inspection. OEM & custom sealing solutions available, ready for global shipment.

Why Mechanical Seals Need Auxiliary Systems (Plan 21/23/52/53B) 2026-09-29

Auxiliary systems stabilize the critical liquid film of mechanical seals by controlling temperature, supplying clean fluid, isolating particles and regulating pressure to avoid dry‑running and premature seal failure.

General Purpose Multi-spring Mechanical Seals 2026-09-24

These universal balanced mechanical seals feature reliable performance, great interchangeability and suit clean or low solid fluids for centrifugal pumps.