CMT3D Dry Running Seal for Extrusion Granulator

Operating Parameters
● Pressure: ≤5KPa ● Temperature: ≤100℃ ● Shaft Diameter: 160~360mm ● Speed: ≤500r/min ● Linear Velocity: ≤25m/s The above limit application parameters are not met simultaneously, customized design for particular applications.
Product Description
● It is often used at the end of extrusion pelletizer screws in polyethylene and polypropylene plants. ● It is a double dry seal for sealing solid material powders by introducing an external air source,no    leakage of medium into the atmosphere. ● Seal structure and material has applied for a number of patents, it has a large number of successful  applications in polypropylene plants.
Structure Features
● Simple structure, compact size, easy to install. ● The main part is designed as a fully sectionalized structure, replacement of seals without dismantling  the unit. ● External spring, it will not be clogged with material. ● The specially designed rubber rectangular ring can be adapted to the poor smoothness and low speed  of the equipment. ● The friction pair is made of the company's patented material and treated with special process, resulting  in a long service life and resistance to dry friction. ● Adjustment of sealing performance can be achieved by adjusting the pressure of an external air source  or an external spring. It is time-saving, convenient maintenance, and low running costs.
Recommended Applications
● Refining and Petrochemical Industry ● Coal Chemical Industry
Piping Plans
● API682 PLAN74
Materials and Configurations

Categories

Components

Standard Materials

Optional Materials

Seal Rings

Primary Ring

Special Polymer

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Mating Ring

Stainless Steel with Hardened End Face

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Elastic Elements

Spring

316

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Metal Parts

Transitional Disk

Aluminium Alloy

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Housing

End Cover

Secondary Seals

Rectangular Ring

FKM

/

O-Ring

FKM

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Performance