Dry-Running and Lubricated – For Low Pressure Applications
Single-acting mechanical seals are designed with two seal rings with one interface and without any seal liquid chamber. This type of mechanical seal therefore has to be operated either under dry conditions or must be lubricated and cooled by the liquid product.
Product Details
The key design feature of single-acting mechanical seals is that they have only two seal rings. This means they have only one interface and no seal liquid chamber. Therefore this type of mechanical seal has to be operated either under dry conditions or it must be lubricated and cooled by the liquid product.
A key characteristic of single-acting mechanical seals is that they can leak into the surroundings of the vessel. This means the vessel is not technically tight, in contrast to double and triple-acting mechanical seals. Therefore, this seal design is suitable for sealing non critical substances and for low pressure applications.
Dry-Running Mechanical Seal ESD32T
Function and application
Single acting, dry-running mechanical seal for low pressure applications
Ready-to-install cartridge unit
Deliverable with short heat trap at extremely high temperatures
Deliverable with Collector tray prevents abrasion material from contaminating the vessel space
Advantages
Leak tightness: minimal leakage from the vessel side
Suitable for sealing non-critical substances
Plug + seal: no adjustment of the spring pre-tension after installation
Easy to monitor and install
Dry operation eliminates the need for additional installation or supply of seal liquid
Visual wear indicator
Working limits
Operating pressure: vacuum…4 bar (abs.)
Vessel temperature: -10…+230°C
Shaft size: 40…220 mm
The EKATO ESD32T is most suitable for
Speciality chemicals
Formulated consumer products
Biofuels and bio refineries
Storage tanks
Product Lubricated Mechanical Seal ESD142
Function and application
Single-acting product lubricated mechanical seal for sealing abrasive suspensions
Mechanical seal ESD142 is used as a flooded seal – horizontal or vertical installation
Advantages
No addition seal liquid supply systems required
Extended lifetime, with abrasive products
Advantages
No addition seal liquid supply systems required
Extended lifetime, with abrasive products
Working limits
Operating pressure: vacuum…3 bar (abs.)
Vessel temperature: -20…+100°C
Shaft size: 20…80 mm
Sliding speed: 0…5 m/s
The EKATO ESD 142 is most suitable for
Biofuels und bio refineries
Storage tanks
Product Lubricated Mechanical Seal ESD42
Function and application
Single-acting product lubricated mechanical seal
Sealing of abrasive suspensions
Used in flooded side entry installations
Mechanical seal most commonly used in FGD agitators worldwide
Advantages
Lubricated and cooled by the product – no additional hydraulic installations required
Special plastics provide greater protection against caking and corrosion
Shut off device for replacement of mechanical seals even during operation without emptying the vessel
Working limits
Operating pressure: vacuum…7 bar (abs.)
Vessel temperature: -20…+80°C
Shaft size: 40…120 mm
Sliding speed: 0…5 m/s
The EKATO ESD 42 is most suitable for
Flue gas desulfurization
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What does “Number of sealing faces” mean?
Single-acting mechanical seals These seals have one sealing surface and only seal in one direction. They are generally simpler in design and are commonly used in applications where pressure is applied from only one side.
Double-acting mechanical seals These seals have two sealing surfaces and can seal in both directions. They are ideal for applications where pressure may come from both sides or where a higher sealing performance is required.
Triple-acting mechanical seals These are less common and used in specialized applications that require a more complex sealing setup. They offer additional sealing surfaces or mechanisms to ensure reliable sealing even in highly demanding environments.
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