Product
M74-D Replacement Mechanical Seal Compatible with EagleBurgmann
| Model | M74-D |
|---|---|
| Reference Brand | EagleBurgmann |
| Seal Type | Dual Pusher Mechanical Seal |
| Configuration | Dual, unbalanced, rotating multiple springs |
| Product Brand | Hong Teng |
| Origin | China |
Product Details
- Seal Design: Dual pusher mechanical seal
- Balance: Unbalanced reference configuration
- Shaft Arrangement: For plain shafts
- Spring Arrangement: Rotating multiple springs
- Seal Arrangement: Dual seal for applications requiring a barrier or buffer system
- Rotation: Independent of direction of rotation
- Face Materials: Selected according to product side and atmosphere/barrier side requirements
- Connections: Barrier/buffer piping arrangement must match the installation
- Installation Check: Confirm shaft size, gland dimensions, working length and dual-seal configuration
- Supply Positioning: Hong Teng replacement for selected EagleBurgmann M74-D-type applications
Important: Dimensions, material combinations and final compatibility should be confirmed against the existing seal or pump information before ordering.
Product Description
The M74-D is a dual mechanical seal arrangement derived from the M7 family and intended for services where a single seal may not provide the required containment or lubrication. Hong Teng supplies replacement M74-D-type seals for selected EagleBurgmann-compatible applications after the complete installation is checked. The reference arrangement uses multiple rotating springs and a dual seal configuration that can operate with an appropriate buffer or barrier-fluid system.
Because this is a dual seal, correct identification requires more than measuring the shaft diameter. The product-side and atmospheric-side seal faces, installed length, gland arrangement, connection ports and barrier/buffer system all need to be checked. The selected secondary seals and face materials should also be compatible with both the process liquid and the auxiliary fluid.
M74-D-type seals are particularly relevant for hazardous, toxic, poorly lubricating or higher-value process liquids where improved containment is desired. The auxiliary system and operating philosophy should be confirmed by the pump or plant engineer before use. Hong Teng manufactures the replacement independently; EagleBurgmann and M74-D references are used only to identify compatible seal applications and do not indicate original-manufacturer supply.
Reference Drawing
For dimensional comparison, see the EagleBurgmann M74-D official drawing and dimensions.
For your own product page, use a Hong Teng redrawn technical schematic rather than reproducing the original catalog artwork directly.
Application
This replacement seal can be considered for the following application groups when the dimensions, materials and operating conditions are compatible:
- Chemical Industry: Process liquids requiring improved containment or controlled leakage
- Hazardous Media: Selected toxic or environmentally sensitive fluids
- Poor-Lubricating Media: Applications where an external buffer/barrier system supports seal operation
- Pulp & Paper: Process pumps where a dual seal arrangement is specified
- Process Plants: Centrifugal pumps in continuous industrial service
- Barrier / Buffer Systems: Installations using compatible external seal-support arrangements
- Pump Upgrades: Conversion or overhaul projects where an M74-D-type dual seal is specified
- Engineering Review: Auxiliary-system pressure, fluid and materials must be confirmed before commissioning
For identification, provide the pump model, old seal photos, shaft diameter, stationary-seat dimensions, working length, operating fluid and quantity whenever available.
Official Reference Datasheet
View the EagleBurgmann M74-D official reference datasheet / catalog PDF.
The linked datasheet is an external EagleBurgmann reference for comparison only. Hong Teng replacement products should be verified against the actual installation before ordering.


Company Profile
Dongguan Hongteng Seals Co., Ltd. Company was established in 1996. The company has passed the GB/T19001-2016 idt ISO9001:2015 quality management system certification. The company has world-renowned pump mechanical seals, axe mechanical seals, fluid mechanical seals, metal bellows mechanical seals, container mechanical seals, rubber bellows mechanical seals, O-ring seals, PTFE mechanical seals, stainless steel oil seals, skeleton oil seals, hydraulic oil seals, automotive water seals and various mechanical seal materials, hard alloys, silicon carbide, carbon graphite, alumina, etc. There are Guangzhou Port, Shenzhen Port, and Foshan Port in the surrounding area, with developed and efficient logistics. The company has a stock warehouse of over 2000 square meters, which can efficiently and quickly deliver goods.
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Customer Reviews
frequently asked questions
01. Q: Are you a factory or a trader?
A: We are a production factory and also sell on our own
02. Q: Where is your factory located?
A: Our factory is located in Dongguan City, and the nearest ports are Guangzhou Port and Shenzhen Port. Other ports can also be selected according to customer needs
03. Q: What is your delivery time in days?
A: For products in stock, we can ship immediately when receive the payment; For other projects, we need 10-25 days for mass production
04. Q: Do you provide free samples?
A: We usually do not provide free samples, and the sample fee can be deducted after the second order
05. Question: What is the most commonly used mode of transportation
A: The weight and size of mechanical seals are relatively small, and air freight, sea freight, and express delivery are usually the preferred transportation methods for customers.
06. Q:What payment methods do you accept?
A: For products in stock, 100% advance payment is required and immediate shipment will be made upon receipt of payment. For customized products, a 30% advance payment and a 70% payment must be made before the order is shipped. We accept T/T, Western Union, and also welcome customers to make payments through Alibaba
07. Q: Can you provide me with customized production
A: Yes, we can customize products and welcome OEM