Spiral Wound Gaskets
OGF Spiral wound gaskets were developed to meet the high demands of the oil refinery industry. This gasket is widely used in many industries such as oil, gas, and petrochemical industries. This metallic gasket today is used in industrial plants as it can withstand high temperatures, pressures, and chemical attacks while preventing any leaks that could happen during their intended lifespan.
Spiral wound gaskets are constructed out of different parts and materials depending on the circumstances the gasket will be in. These gaskets are constructed of three different sections comprising an outer ring, a spiral ring, and an inner ring. Each section can be made of different materials to ensure the best seal for industrial use.
The outer ring, sometimes called the centering or guide ring, is used to center the gasket when you insert it into a bolted flange joint. Typically, bolts are on the joint to ensure positioning when placing the gasket on. This outer ring is usually constructed out of carbon steel.
The sealing element also referred to as the spiral winding, is the area that creates the seal and prevents any leaks. This area also has the filler material and the spiral wounds that create the proper seal. The filler material for the oil and gas industry is usually made from PTFE or a flexible graphite material that is rated for high temperatures.
The inner ring is an important part of the spiral wound gasket. This section of the gasket prevents and buckling or any sort of damage to the gasket itself. This is important as damage caused to the gasket could go through the pipeline and cause damage internally to the pipe or the pump. This part of the ring is not necessary but will prevent damage to the filler material if thrown around or in high-pressure sealing situations.
Spiral wound gaskets without centering and inner ring
Spiral wound gaskets have proven to be the most reliable sealing element for use in difficult, critical, and arduous duties. Spiral wound gaskets are used in Refinery, Petrochemical, Chemical, Steam lines, and Process Industries, where they have many advantages over older types of gaskets.
These gaskets are manufactured to International specifications such as BS, API, ASME, DIN. We also manufacture to customer's specifications We have a huge capacity to produce precision machined components.
These gaskets are manufactured of a spiral-wound metal strip and a non-metallic filler material.
- Materials metal strip: Steel - 1.4301, 1.4401, 1.4541, 1.4571, Monel (NiCu30Fe) - 2.4360
- Filling material: Graphite 99,85% - operating temperature -200°C to +550°C
- Graphite 98% - operating temperature -200°C to +400°C
- PTFE - operating temperature -200°C to +250°C
Application limit: Operating pressure max. 160 bar
Gasket thickness: 3,2mm - 4,5mm - 6,5mm - 7,2mm
Profile type:
- MS (with graphite)
- MS (with PTFE)
Spiral wound gaskets with inner ring
Spiral wound gaskets have proven to be the most reliable sealing element for use in difficult, critical and arduous duties.Spiral wound gaskets are used in Refinery, Petrochemical, Chemical, Steam lines and Process Industries, where they have many advantages over older types of gaskets.
These gaskets are manufactured to International specifications such as BS, API, ASME, DIN. We also manufacture to customer's specifications. We have a huge capacity to produce precision machined components.
These gaskets are manufactured of a spiral-wound metal strip and a non-metallic filler material. The inner retaining ring increases the axial rigidity and resilience of the gasket.
Characteristics:
- Materials metal strip: Steel - 1.4301, 1.4401, 1.4541, 1.4571, Monel (NiCu30Fe) - 2.4360
- Filling material : Graphite 99,85% - operating temperature -200°C to +550°C , Graphite 98% - operating temperature -200°C to +400°C , PTFE - operating temperature -200°C to +250°C
- Material inner ring: Generally the material corresponds to that of the metal strip.
Application limit::
- Operating pressure max. 320 bar
- Gasket thickness: 3,2mm - 4,5mm - 6,5mm - 7,2mm
- Profile type : MS 12
Spiral wound gaskets with outer ring
Spiral wound gaskets have proven to be the most reliable sealing element for use in difficult, critical and arduous duties.Spiral wound gaskets are used in Refinery, Petrochemical, Chemical, Steam lines and Process Industries, where they have many advantages over older types of gaskets.
Spiral wound gaskets with outer ring are manufactured to International specifications such as BS, API, ASME, DIN.We also manufacture to customer's specifications. We have a huge capacity to produce precision machined components.
Spiral wound gaskets with outer ring are fabricated of a spiral-wound metal strip and a non-metallic filler material.The metallic outer centering ring controls the compression and holds the gasket centrally within the bolt circle.
Characteristics:
- Materials metal strip: Steel - 1.4301, 1.4401, 1.4541, 1.4571, Monel (NiCu30Fe) - 2.4360
- Filling material : Graphite 99,85% - operating temperature -200°C to +550°C , Graphite 98% - operating temperature -200°C to +400°C , PTFE - operating temperature -200°C to +250°C
- Material outer centering ring : C-Steel - galvanised chromised or varnished, or in high-grade steel.
Application limit::
- Operating pressure max. 320 bar
- Gasket thickness: 3,2mm - 4,5mm - 6,5mm - 7,2mm
- Profile type : MS 14
Spiral wound gaskets with inner and outer ring
The OSW4 (With Inner & Outer Ring) Spiral Wound gasket has both metal outer and inner ring. As inner ring works to prevent internal extrusion or inward buckling, this style is especially recommended for the following cases.
- For flanges NPS 24 and larger in class 900, NPS 12 and larger in class 1500 and NPS 4 and larger in class 2500#.
- PTFE filler material.
- For socket welding, lapped, welding neck and integral flanges. This style is suitable for pipe or pressure vessels using raised face flange connection.
