CHETRA® Products

We supply you with what you need. Reliable and high quality sealsfor over 40 years.
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The configuration you require is not yet part of our product portfolio? We would be pleased to design a mechanical seal tailored to your requirements.

Configuration

Type 900/990

Mechanical Seal

Standard mechanical seal, balanced, single acting, independent of direction of rotation, multiple springs arranged stationary an outside of the ranging product
Designs:
– 900S sterile
– 990 with solid seal rings
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!

Type 877

Mechanical Seal

Double acting, stationary cartridge, short designed mechanical seal
executions:
– 877X for chemical norm pumps (TA-Air conform)
– 877X Aseptik sterile, double balanced
– 877XC according to 24960C (Wave: 30mm – 60mm)
– 877GS gas mechanical seal
– 877S screw pumps
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!

Type 577

Mechanical Seal

Short designed agitator mechanical seal, double acting
Designs:
– 577 without bearing
– 577BCL with bearing
– 577G with bellows to absorb axial travels
ATEX on request (depends on parameters)
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!

Type 541

Mechanical Seal

Agitator mechanical seal, stationary, multiple springs, especially for polymerized medium like butadiene
Designs:
– 541L (with bearing)
– 541S (sepcial designs)
– 541 S/L sterile (EHEDG-verification)
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!

Type 521

Mechanical Seal

Sterile, agitator mechanical seal, double-acting, multiple springs.
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!

Type 201

Mechanical Seal

Heavy mechanical seal, balanced, stationary style as cartridge seal for challenging applications
Designs:
– 201S sterile design / agitators
– 201A Pipeline pump mechanical seals (multipoint-injection)(Max. pressure 100bar)
– 201AHD Pipeline Heavy Duty (Max. pressure 150bar)
All sizes are available in inch too
It is not allowed to use all max. parameters at the same time!