Basic Features
Structure: Single-ended
Pressure: Medium pressure mechanical seal
Speed: high-speed mechanical seal
Temperature: temperature mechanical seal
Performance: Wear
Standards: DIN24960, ISO3069 and GB6556
Model: M7N, M74, M74D (2 M74 seals)
Balance: unbalanced
Specifications: Inner diameter: 20 mm to 300 mm
Product details
M7N, AKA M74 mechanical seal, used for chemical centrifugal pumps, KSB/Kaiquan water pumps and double suction pumps

Structural features: single-ended, wave spring (M7N), multiple springs (M74), unbalanced, independent rotation direction, lug drive. M7N has a simple transmission method and good compatibility. The wave spring structure allows the transfer of particles, crystals and high viscosity content. The transmission mode of M74 is also very simple, and the compensation components are pre-assembled; it is easy to install and has good compensation. The load on the sealing surface is balanced, and the sealing performance is stable and reliable.



Scope of application: Widely used in chemical processing, oil refining, petrochemicals, sewage treatment, pharmaceuticals and food production. Designed for chemical pumps, water pumps, screw pumps, sewage pumps, double suction pumps, papermaking equipment and other rotating equipment.

Operating parameters:
Pressure: below 1.6 MPa
Temperature: -420~200ºC
Linear speed: 20 m/s or less