Worldwide Sealing Technology’s state-of-the-art facility was built to meet, and exceed customer expectations. Worldwide’s engineers apply advanced – information technology, proven analytical methods superior as well as experience in sealing turbo machinery and other fluid handling equipment. All this combined is engineered into every pump, compressor, turbine and agitator.

Our mechanical seals are machined by precision CNC machines and each seal part is produced accurately as per design drawings. The materials used in the seal parts depend on the application.

For Seal Bodies & Springs
Stainless Steel 316L ~ Hastelloy C ~ Titanium

For Rotary & Stationary Seal Faces
Silicon Carbide ~ Tungsten Carbide ~ Ceramic ~ Special Cast ~ Carbon

Elastomers / O Rings
Viton ~ NBR ~ Teflon

Lapping & Polishing

Every seal face is lapped and polished to 1 lightband width flatness. This is done on a lapping machine which consists of a turn-table which is sprayed with liquid diamond intermittently. The liquid diamond is used to cut the seal faces to achieve total flatness. The first cut is done on the turn-table based with 14 micron liquid diamond. The final cut is achieved on 3 micron liquid diamond. The seal faces are then polished on a special lamp cloth to achieve a mirror finish.

Testing & Q.C

The seal faces are tested for optical flatness by pacing it under a special optical lens subjected to monochromatic light. This helps to determine the sought light- band width, i.e. 1 light-band had been achieved. When the seals faces have achieved flatness, they are then inspected for only scratches and unwanted burrs on the seal bodies every seal part is inspected thoroughly for any defect pertaining to machined dimensions, set screw threads, milled parts, o ring groove dimensions, u-slot widths / depths, spring compressions and spring groove dimensions.

After passing the strict quality procedures, the seals are then tested or leaks. This is done on a pressure testing units. The unit consists of a shaft and casing arrangement. The seals are fitted on the shaft with their correct working lengths. A hydro/oil test is then conducted to determine any leaks between the seal faces and o ring at the required working pressure. When the seals pass the hydro-test they are ready for installation. Every mechanical seal is carefully packed and secured against any damage during delivery.