We are the sole distributor for STB Mechanical seals in South East Asia (SEA). STB designs and manufactures mechanical seals and special seals for gas and steam turbines, compressors (especially rotating piston, screw-, centrifugal compressors), pumps, mixers and agitators and many other applications where fluids, gases or steam need to be sealed. 


Oil & Gas
Water & Waste Water
Pulp & Paper
Food & Beverage


Short Lead Time

Customized to Size Shape & Standards

Design to Replace Existing OEM Seals

Cost Effective Solution

Easy Maintenance

API 682 Compliant

FDA Compliant

Long Product Life Span

Mechanical Seals

Cartridge SEals

STB designs and manufactures various mechanical cartridge seals. Its state-of-the-art manufacturing technology and short lead time for customised seals are some of the key benefits. Seals are customised based on application, dimension, and materials.

Single Cartridge Seals

Single mechanical cartridge seals are an extension and improvement of single component seals. Designed with shaft sleeves, to protect the shaft from damage. Most types are designed with integrated flushes, which are ideal for high viscosity products or products with a high amount of solid particles.

Double Cartridge seals

Double mechanical cartridge seals have a barrier or buffer fluid between both pairs of seal faces. One pair is located on the product side, the other pair is located on the atmospheric side. Between them is the barrier fluid to cool the seal faces and to ensure that no contamination of the environment will occur.

Siron Seals

Siron is a cartridge mechanical seal design available in single and double acting arrangements. It offers industry-leading consistent quality, standard and high availability. The cartridge design guarantees an easy installation of rotating equipment by eliminating installation mistakes.

OEM-Replacement seals

STB offers product-specific OEM-Replacement seals. STB provides mechanical seals for equipment such as: turbines, pumps, compressors and blowers. STB pays great attention to delivering the highest quality from design to delivery. Their automated production processes allow STB to have high availability and fast reaction times.

Replacement Seals for the following OEM systems:

  • Blackmer Pumps

  • Plunger Pumps 

  • Screw Spindle Pumps 

  • Sulzer Agitators 

  • Slurry Pumps 

agitator seals

Agitator seals have been used in large-scale industries for many years for sealing critical and dangerous media. The reliable sealing process plays a significant role for the environment and machinery operators. Agitator seals manufactured by STB GmbH meet the highest standards when it comes to their sealing function, lifespan and maintenance requirements. STB’s standard series are always readily available and at short delivery times. 

component seals

Component mechanical seals are the simplest design of mechanical seals and are commonly used as a better alternative to dynamical packing systems. The design of a single component mechanical seal can include the following components: stationary seal face, dynamical seal face, springs, O-rings and steel parts. The construction in length, pressure resistance, and diameter can vary. STB also develops and manufactures special seals based on customer requirements.

Marine Seals

STB water-lubricated propeller shaft seal is an ecological and economical solution that meets all technical needs of a modern mechanical navy seal. Among others, it has a modular setup, is easy to assemble, requires low maintenance efforts and has no configuration. Propeller shaft seals use the same function principle as mechanical seals. Therefore, they are virtually leak-free and leave no oil or grease residue in the waterway.

Mechanical Seal Support System

With the massive global expansion of double mechanical seals in the petrochemical, pharmaceutical and process industry, support systems are a necessary solution. Mechanical Seal Support Systems (MSSS) are able to extend the lifetime of a double-acting mechanical seal and increase the equipment’s safety massively.

Carbon Seals

STB manufactures carbon rings upon receipt of samples, drafts or by STB design based on your application. Due to high stocks of raw materials. STB offers the shortest lead time. 

Carbon Seals

STB offers various mechanical packing solutions such as:

  • Tartarus Seal Kit – used in Plunger Pumps 

  • Static Packing – used in Valves 

  • Dynamic Packing – used in Pumps, Refiners and Mixers 

  • Graphite Seal Packing – Graphite Seals, Packing System

  • Injection Packing – A Service and maintain friendly packing system

  • High-Pressure Packing – 700°C and 150 bar 

STB Services & Refurbishment

Our qualified engineers and service technicians work closely with the engineers at STB to apply their skills toward continuing the German tradition of high quality and reliability. STB provides overhauls to mechanical seals from all manufacturers.



The variants of mechanical seals include:

  • Component Seals 

  • Cartridge Seals 

  • Agitator Seals 

  • Steam Head Gasket

  • Carbon Floating Seals 

  • Enameled GLRD ATEX Seals

  • Dry Gas Seals

  • Customised Seals 

Benefits of Stb Repairs

  • High-Quality Inspection, Overhaul & Modification 

  • Flexible & Fast Processing of Orders 

  • Done by Specially Trained Engineers for Mechanical Seals & Supply System

  • Professional & Environmentally Friendly disposal by Logistic Department Damage

  • Report Involving The Entire Assembly Unit, (if present) Supply System & All Components 

  • High Flexibility Through Collaboration of Service & Production

  • Extensive Report for Further Decision-Making Purposes