John crane Type 1 mechanical seal
John crane 2100 mechanical seal
Eagle burgmann MG1 water pump mechanical seal
Eagle Burgmann MG1 mechanical seal
Eagle burgmann type 155 pump seal
F-12 automobile water pump seal
Eagle Burgmann BT-AR mechanical seal

                               Types of pump mechanical seals

1, Elastomer bellow seal

John crane type 2100 elastomer bellow mechanical seal front view

Engineered primarily for versatile, light-to-medium duty services. This design features a molded rubber bellows core that simplifies the mounting process and naturally accommodates minor shaft misalignments.

  • Common Configurations: BT-AR, 2100, MG1, MG12, MG13, Type 1

  • Typical Industries: Potable water distribution, submersible pumping systems, municipal water utilities, and hygienic food/beverage processing.

2, O ring pusher seal

M7N mechanical seal with right seat

This configuration utilizes a dynamic O-ring as a secondary sealing element, combined with spring mechanisms to maintain continuous, stable contact between the rotating and stationary seal faces.

  • Common Configurations: M3N, M7N, 58U, 1527

  • Typical Industries: Pulp & paper manufacturing, industrial textiles, petrochemical refining, marine/shipbuilding, and wastewater treatment.

 

                 Key Factors for Selecting a Replacement Seal

Mechanical seal selection factors

  • Option A: Standard Maintenance Replacement
    If the current seal setup has demonstrated stable, reliable service life, replacing it with an identical OEM model or direct equivalent is generally the most efficient path.

  • Option B: Performance Upgrades & Troubleshooting
    If the existing seal fails prematurely or cannot handle process changes, a system reassessment is recommended. Please gather the following technical parameters to help identify a more durable alternative:

    • Fluid Properties: Chemical composition, viscosity, and abrasive content

    • System Pressure: Operating and maximum design pressures

    • Shaft Velocity: Rotational speed (RPM)

    • Process Temperature: Continuous and peak thermal ranges

    Our technical team can evaluate these operating conditions to suggest an optimized sealing solution.

About us

Ziliujing District Dean E-commerce Firm focus on developing flow control technology solution for pumps, mechanical seals, valve, flowmeter etc. We are commited to assist client get best solution and competitive price in efficient way.

Our product and service as following:

1, Mechanical seal compliant in API 682 standard

2, High temperature metal bellow seal

3, Rubber bellow seal used in clean water pump

4, O ring pusher seal applied in chemical water pump

5, Standard cartridge seal replace John crane, Eagleburgmann and flowserve etc.

6, Screen or pulp pump application mechanical seal replace safematic

7, Dry gas seal for pump & compressor

8, Mixer & agitator mechanical seal used in food & beverage Industry, chemical industry, Petrochemical industry.

9, Slurry mechanical seal for thermal power plant & Mining industry.

10, Customized mechanical seal according to customer’s drawing.

11, Repair kit or spare part for mechanical seal

Professional technology support, patient communicating and competitive price to make us to be a reliable company. Welcome to contact us with following way:

Whatsapp/wechat: +86-15700677027

Email:

Address: Ziliujing District, Zigong City, Sichuan province, China

Our Advantages

Fast Response & Delivery

Email and whatsapp always reply in 1 hour. We are able to handle urgent order and send out in a short time.

Various Dimensions Available

A lot of different dimension mechanical seals in stock.

Custom Made Service

Customized mechanical seal according to your provided dimensions and operation limits.

Good service

Installation service guide and one year warranty

Production Process

Saw Stainess
Machining
Machining
CNC Machine Center Milling and Drill
CNC Machine Center Milling and Drill
Check and Measuring
Check and Measuring

Production Line

Equipment

FAQ