shaft seals - netzschusa.com seals are not suitable, e.g. adhesive and coagulating fluids. shaft...

© NETZSCH www.netzsch.com 14.08.2008 - 1

Gland Packing• simple design• easy replacement of packing

rings without dismantling the pump

• wear protection with coated shaft

• design with flushing connection also available

• for applications where mechanical seals are not suitable, e.g. adhesive and coagulating fluids

Shaft Seals


• single acting seal, non balanced• bi-directional• for pressures up to 230 Psi• torsion free elastomer bellows• suitable for large axial movements(+/- 2 mm)

• robust open spring construction• economical, standard shaft seal for most applications

MG1-S50-G6/... Q1 Q1 V GG

MG1-G60/... Q1 Q1 V GG

Burgmann MG 1

Shaft Seals


• Single acting, non balanced• bi-directional• for pressures up to 230 Psi

• exchangeable faces

• Dimensions acc. To DIN 24960

• Super-Sinus spring

• for chemical applications; with fluids with up to a dry solids content of 5 %.

Burgmann M7N

Shaft Seals

product


• Single acting, balanced• bi-directional• for pressures up to 360 Psi

• dimensions acc. To DIN 24960

• enclosed spring

• external profile with very few gaps

• For applications in environmental, chemical and food industries; for adhesive products or products with a high solids content

Burgmann HJ 977

Shaft Seals


Type SHJ

• single acting, balanced• bi-directional• for pressures up to 230 Psi• crevice free, no dead areas; for optimal cleaning

• encapsulated spring• special design with smooth outside surface

• in accordance with EHEDG and QHD regulations

• elastomer to FDA standards

only for NEMO® Hygienic and Aseptic Pump

Shaft Seals


• pre-assembled cartridge seal

• fastest possible assembly

• no faulty mounting

Cartridge Seal Type Cartex

Cartex QE single acting for quench

Cartex DE double acting for applications with and without sealing pressure

Shaft Seals


Double Mechanical SealTANDEM - Arrangement

• for fluids which tend to cure easily at the seal faces

• to prevent leakage to the atmosphere

• the quench fluid is under static pressure.

Shaft Seals

product buffer liquid


Double mechanical seal, tandem arrangement,in a NEMO® aseptic pump type SA

Shaft Seals


• detecting of leakage• cooling and lubricate the second

mech. Seal (Tandem arrangement)• the product has no air contact• dry running protection• API plan 62

For single mech. Sealswith quench and Tandem arrangement

Quench Pot

mech. seal


Double Mechanical Seal BACK-TO-BACK

- Arrangement• for adhesive, toxic fluids and products

with a high content of dry solids

• for vacuum up to – 26.5 inches of mercury

• pressure control for buffer liquid required

• the pressure of the sealing liquid

must be a minimum of 30 Psi higher than

the pressure of the pumped product.

• long service life due to the clean

lubrication film between the sealing faces.

Shaft Seals

atmosphere product side

buffer liquid


TS 1016 TS 2000

SPS

SPU

SPN

SPI

Thermosyphon vessel


Sticky products

Single mech. Seal

Single with quench

Tandem arrangement

Back to back

M7 MG1 HJ Cartex

recommended possible not recommended

not possible


High viscosity products

Single mech. Seal

Single with quench

Tandem arrangement

Back to back

M7 Cartex HJ packing

recommended possible not recommended

Not possible

Not possible

(with flushing)


corrosive products

Single mech. Seal

Single with quench

Tandem arrangement

Back to back

M7 MG1 Cartex

recommended possible Not recommended

(with special metallic parts)

(metal free)Not possible


Products with solids

Single mech. Seal

Single with quench

Tandem arrangement

Back to back

M7 MG1 CARTEX

recommended possible Not recommended

- 5 %, - 12 %,* > 15 - 50 % - 20 %

Not possible

* only for sludge

shaft seals - netzschusa.com seals are not suitable, e.g. adhesive and coagulating fluids. shaft...

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