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Sealing solutions

Mechanical Seals & Sealing Solutions

SUPHEX started in mechanical seals for chemical pumps. We supply seals and related sealing products for process equipment.

Product catalogue

Mechanical seal series

Brochure specifications are reference ranges. Confirm the seal configuration, material compatibility and operating conditions with SUPHEX before ordering.

16 of 16 series groups

SS100 · Brochure page 2

Series SS100

Conical spring unbalanced seals

Single conical spring, unbalanced seals with O-ring secondary sealing. Right- and left-handed springs suit clockwise and anticlockwise shaft rotation respectively.

Applications: Water pumps · Submersible pump · Sewage pump

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Unbalanced
  • Conical spring
  • Dependent on direction of rotation

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump
Shaft Diameter
10–100mm
Pressure
10 bar (max)
Temperature
-20–180°C
Velocity
10 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316
  • O-rings : Elastomers, other options: contact SUPHEX to confirm

SS101 · Brochure page 3

Series SS101

Conical spring balanced seals

Balanced conical spring seals with compact, rugged construction for chemical service and water pumps.

Applications: Water pumps · Submersible pump · Sewage pump

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Conical spring
  • Dependent on direction of rotation

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump
Shaft Diameter
10–100mm
Pressure
20 bar (max)
Temperature
-20–180°C
Velocity
15 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316
  • O-rings : Elastomers, other options: contact SUPHEX to confirm

SS200 · Brochure page 3

Series SS200

Rubber bellow seals

Single coil spring seals with a rubber bellow for wastewater and sewage service. The bellow protects the shaft or sleeve from fretting, with torque transmitted through the spring and holder.

Applications: Water pumps · Submersible pump · Sewage pump

Technical specifications & materials

Seal characteristics

  • Single seal
  • Unbalanced
  • Rubber bellow; spring configuration to be confirmed

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump
Shaft Diameter
10–100mm
Pressure
10 bar (max)
Temperature
-20–180°C
Velocity
10 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316
  • O-rings : Elastomers, other options: contact SUPHEX to confirm

Confirm the rubber-bellow construction and spring configuration for your pump.

SS201 · Brochure page 3

Series SS201

Unbalanced single-acting helical coil spring seals

Unbalanced single-acting helical coil spring seals. A notched drive ring helps protect the elastomer bellow and shaft or sleeve; the design allows field repair with replacement parts.

Applications: Water pumps · Mixers and Agitators · Sewage pump · Pulp and papers

Technical specifications & materials

Seal characteristics

  • Single seal
  • Unbalanced
  • Rotation and spring configuration: contact SUPHEX to confirm

Applications

  • Water pumps
  • Mixers and Agitators
  • Sewage pump
  • Pulp and papers
Shaft Diameter
10–100mm
Pressure
18 bar (max)
Temperature
-20–140°C
Velocity
15 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316
  • Bellows : Viton, Nitrile

Please confirm the required construction and direction of rotation with SUPHEX before ordering.

SS202/203 · Brochure page 4

Series SS202/203

PTFE bellow seals

Externally mounted PTFE bellow seals for corrosive fluids including acids, salts, organic compounds and reducing agents. Metallic components are isolated from the fluid. Non-replaceable faces are described for both variants, with hard face options for SS203 abrasive service.

Applications: Extremely Corrosive application

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Outside mounted
  • Conical spring
  • Independent on direction of rotation

Applications

  • Extremely Corrosive application
Shaft Diameter
18–100mm
Pressure
6 bar (max)
Temperature
-45–120°C
Velocity
20 m/sec

Materials

  • Seal Faces : GFT, SiC, Ceramic
  • Metal Parts : SS304, SS316, Hast-C
  • PTFE Bellow

Confirm face replaceability and PTFE material options for the selected variant.

SS300 · Brochure page 4

Series SS300

Balanced single coil spring seals

Balanced single coil spring seals for lightly contaminated, dirty or clogging media. A grub-screw drive locks onto the shaft, and the compact construction fits a normal shaft without a balancing step.

Applications: General Chemicals · Petro Chemicals · Light Hydrocarbons

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Helical Coil spring
  • Independent on direction of rotation

Applications

  • General Chemicals
  • Petro Chemicals
  • Light Hydrocarbons
Shaft Diameter
10–100mm
Pressure
30 bar (max)
Temperature
-20–140°C
Velocity
15 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316, Special Alloy
  • O-rings : Elastomers, PTFE

SS400/401 · Brochure page 4

Series SS400/401

Multi-spring unbalanced seals

Compact, multi-spring pusher-type unbalanced seals for pumps and mixers. Retainer drive lugs transmit torque and a snap ring holds the components together for installation.

Applications: General Chemicals · Petrochemicals · Refineries · Light hydrocarbons

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Unbalanced
  • Independent on direction of rotation

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons
Shaft Diameter
18–100mm
Pressure
10 bar (max)
Temperature
-20–240°C
Velocity
20 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Hastelloy-C, Alloy 20
  • Bellows : Elastomers (400), PTFE (401)

SS500/501 · Brochure page 5

Series SS500/501

Multi-spring balanced seals

Compact, multi-spring pusher-type balanced seals for high-pressure pump and mixer applications. Drive lugs transmit torque and a snap ring retains the components.

Applications: General Chemicals · Petrochemicals · Refineries · Light hydrocarbons

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Independent on direction of rotation

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons
Shaft Diameter
18–100mm
Pressure
20 bar (max)
Temperature
-20–400°C
Velocity
20 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Hastelloy-C, Alloy 20
  • O-rings : Elastomers (SS500), PTFE (SS501)

Confirm the selected secondary sealing material and temperature compatibility.

SS502 · Brochure page 5

Series SS502

Metal bellow seals

Balanced metal bellow seals for chemical, refining and petrochemical service. Static secondary sealing avoids a dynamic O-ring; AM350 bellow cores are listed, with Alloy C-276 or Alloy 718 options for chemical compatibility.

Applications: General Chemicals · Petrochemicals · Refineries

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Metal Bellows
  • Independent on direction of rotation

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
Shaft Diameter
10–100mm
Pressure
10 bar (max)
Temperature
-20–180°C
Velocity
10 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Carpenter 42, Hastelloy-C, Alloy 20
  • O-rings : Elastomers, PTFE

SS503 · Brochure page 5

Series SS503

High-temperature metal bellow seals

Metal bellow seals for high-temperature applications and high start-up torque. Grafoil secondary packing and a shrink-fitted seal face are used in this design.

Applications: High temperature applications · Petrochemicals · Refineries

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Metal Bellows
  • Independent on direction of rotation

Applications

  • High temperature applications
  • Petrochemicals
  • Refineries
Shaft Diameter
18–100mm
Pressure
20 bar (max)
Temperature
-20–400°C
Velocity
20 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Carpenter 42, Alloy 20, Hastelloy-C
  • Packing : Grafoil

SS600 · Brochure page 6

Series SS600

Slurry seals

Compact balanced cartridge seals for slurries, sludges, thick syrups and polymerising fluids. Springs are isolated from the fluid; location plates assist installation without setting measurements.

Applications: Pulp & Paper · Slurry pumps · Sludge pumps

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Independent on direction of rotation
  • Cartridge unit

Applications

  • Pulp & Paper
  • Slurry pumps
  • Sludge pumps
Shaft Diameter
20–100mm
Pressure
18 bar (max)
Temperature
-20–180°C
Velocity
20 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Hastelloy-C, Alloy 20
  • O-rings : Elastomers

SS602 · Brochure page 6

Series SS602

Capsulated spring seals

Balanced seals for fluids containing solids or with high viscosity, without a stepped sleeve. Protected springs are separated from the process media to reduce clogging.

Applications: General Chemicals · Petrochemicals · Refineries

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Capsulated Spring
  • Independent on direction of rotation

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
Shaft Diameter
18–100mm
Pressure
25 bar (max)
Temperature
-20–140°C
Velocity
15 m/sec

Materials

  • Seal Faces : Carbon, Ceramic, SiC, Tungsten carbide
  • Metal Parts : SS304, SS316, Special Alloy
  • Bellows : Viton, Nitrile

SS700 · Brochure page 6

Series SS700

High-pressure seals

Balanced cartridge seals for heavy-duty high-pressure service. A positive drive arrangement and multiple springs provide face loading for oil pipelines, water injection and boiler feed pumps.

Applications: Main Oil Pipeline · Water Injection Pumps · Boiler Feed Water Pumps

Technical specifications & materials

Seal characteristics

  • Single Seal
  • Balanced
  • Independent on direction of rotation

Applications

  • Main Oil Pipeline
  • Water Injection Pumps
  • Boiler Feed Water Pumps
Shaft Diameter
25–150mm
Pressure
80 bar (max)
Temperature
-20–220°C
Velocity
20 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Hastelloy-C, Alloy 20
  • O-ring : Elastomers

SS800 · Brochure page 7

Series SS800

Agitator, mixer and vessel seals

Cartridge seals for agitators, mixers and reactor vessels, with configurations for top, side and bottom entry. Short shaft construction and bearings near the vessel body help limit deflection.

Applications: General Chemicals and its vapours · Petrochemicals and its vapours · Light Hydrocarbons and its vapours

Technical specifications & materials

Seal characteristics

  • Single Seal / Double Seal
  • Unbalanced / Balanced
  • Independent on direction of rotation

Applications

  • General Chemicals and its vapours
  • Petrochemicals and its vapours
  • Light Hydrocarbons and its vapours
Shaft Diameter
25–150mm
Pressure
Contact SUPHEX to confirm
Temperature
-20–220°C
Velocity
4 m/sec

Materials

  • Seal Faces : Carbon, SiC, Tungsten carbide
  • Metal Parts : SS316, Hastelloy–C, Alloy 20
  • O-rings : Elastomers, PTFE

Please confirm the exact pressure rating with SUPHEX before ordering.

SS900 · Brochure page 7

Series SS900

Grundfos pump seals

Seals for Grundfos pump applications, designed for replacement and installation. The construction limits axial movement to reduce shaft and rubber-part wear.

Confirm your equipment model and application with SUPHEX.

Technical specifications & materials
Pressure
Upto 20 Kg/cm²
Temperature
Contact SUPHEX to confirm
Speed
3000 RPM

Materials

  • Hardware : SS304, SS316
  • Seal Ring : Carbon, SiC
  • Mating Ring : TC, SiC, Carbon, Special Cast
  • Secondary Seal : PTFE, EPDM, Nitrile, Neoprene, Silicone, FKM

Please confirm the exact temperature rating with SUPHEX before ordering.

SS902 · Brochure page 7

Series SS902

Rubber diaphragm seals

Rubber diaphragm seals for textile yarn and fibre dyeing, cloth dyeing and high-speed jet dyeing plants, including mercerizing and pretreatment machines. A self-aligning unit accommodates shaft end play and run-out.

Confirm your equipment model and application with SUPHEX.

Technical specifications & materials
Pressure
Upto 15 Kg/cm²
Temperature
Contact SUPHEX to confirm
Speed
3000 RPM

Materials

  • Hardware : SS304, SS316
  • Seal Ring : Carbon, TC, SiC
  • Mating Ring : TC, SiC, Ceramic, Special Cast
  • Secondary Seal : EPDM, Nitrile, Neoprene, Silicone, FKM

Please confirm the exact temperature rating with SUPHEX before ordering.

Gallery

Mechanical seal photos

Applications

  • Chemical pumps
  • Agitator mixers
  • Vacuum pumps
  • Blenders
  • Pharmaceutical equipment

Also supplied

  • Pumps and pump shafts
  • Agitator shafts
  • Oil seals
  • Packings
  • Gaskets

How to enquire

To get a quotation, please share:

  1. 1Pump make and model
  2. 2Shaft size
  3. 3Operating media
  4. 4Drawing or sample (if available)
Specifications
Seal typeSpecifications on request
Shaft sizeSpecifications on request
Materials of constructionSpecifications on request
Operating pressureSpecifications on request
Operating temperatureSpecifications on request
Operating mediaSpecifications on request

Need a quotation?

Share your requirement – size, material, quantity – and we will get back to you.