Niaar supplies Spiral Wound RTJ Gaskets from Flexitallic, Garlock, Klinger, Donit, and Lamons. Spiral wound and ring type joint gaskets for high-pressure and high-temperature flange sealing in oil and gas, refinery, and petrochemical applications.
Niaar supplies Spiral Wound RTJ Gaskets to UAE and Dubai industrial customers requiring reliable high-pressure sealing. Our range includes spiral wound gaskets with inner and outer rings and ring type joint gaskets in oval and octagonal profiles.
We also supply customized metallic gasket solutions. We source from Flexitallic, Garlock, Klinger, Donit, and Lamons — globally recognized specialists in industrial sealing.
Spiral wound gaskets consist of a V-shaped metal strip and a soft filler wound in a spiral pattern. The metal strip is typically 316L stainless steel, while the filler is graphite, PTFE, or mica.
This composite structure gives spiral gaskets superior resilience and blowout resistance. Furthermore, they recover well under fluctuating bolt loads caused by thermal cycling and pressure surges.
Standard spiral wound sealing gaskets include a solid metal outer ring. This outer ring centers the gasket in the flange bore and limits compression. An inner ring is added for Class 900 and above to prevent inward buckling under high bolt loads. Together, these features make Spiral Wound RTJ Gaskets the most widely specified metallic sealing solution in process piping.
Ring type joint gaskets are solid metallic rings machined to precise oval or octagonal profiles. RTJ ring gaskets seat in grooves machined into the flange face. When bolts are tightened, the ring deforms into the groove, creating a metal-to-metal seal.
This design is ideal for high pressure gaskets in wellheads and high-pressure separators. It is also used in heat exchangers operating above Class 600 pressure.
ASME B16.20 gaskets covers both spiral wound and ring joint types, defining material, dimensional, and hardness requirements. API 6A gaskets for wellhead and tree equipment similarly follow API and NACE material requirements. Niaar sources RTJ gaskets in soft iron, low-carbon steel, and 316L stainless. Inconel 625 is also available for hydrogen sulphide and high-temperature sour service.
High pressure gaskets from our range are used in refineries, gas processing plants, and LNG facilities. They are also widely used on offshore platforms across the UAE and Middle East.
Spiral wound sealing is standard for ASME Class 300 through Class 1500 flanges in carbon steel and stainless process piping. Additionally, RTJ ring gaskets are mandatory for Class 900 and above where process conditions demand the highest leak tightness.
Metal gaskets industrial services specify include hydrocracker reactor nozzles, high-pressure heat exchanger bonnets, pressure vessel manway covers, and pipeline pig launcher closures. For each application, correct gasket selection — material, hardness, size, and style — is critical to sealing integrity and plant safety.
Flexitallic is the original inventor of the spiral wound gasket and remains the industry benchmark for quality. Garlock offers a wide range of spiral wound and sheet sealing products with extensive chemical compatibility data. Similarly, Klinger and Donit provide European-certified sealing solutions widely used in process industry applications.
Lamons specializes in custom gaskets for high-pressure and high-temperature services, including heat exchanger gaskets and reactor manway seals. Together, our supplier base gives Niaar the breadth to source any flange gaskets configuration for any pressure class or material requirement.
As a Dubai-based procurement specialist, Niaar supports UAE customers with the procurement of Spiral Wound RTJ Gaskets across all ASME and API pressure classes. We maintain local stock of common sizes and can source specialist configurations — such as large-diameter RTJ rings or custom alloy spiral wound gaskets — directly from manufacturer plants. Material test reports and hardness certificates are provided as standard.
Niaar delivers reliable supply of Spiral Wound RTJ Gaskets for UAE and GCC industrial projects. Contact our Dubai team today for pricing, availability, and material selection support.
Moreover, we provide full procurement documentation on all Spiral Wound RTJ Gaskets orders. Additionally, third-party inspection certificates are available where required. We help you specify the right metal gaskets industrial applications need for long-term sealing performance.
| Specification | Details |
|---|---|
| Gasket Types | Spiral Wound (SW), Ring Type Joint (RTJ), Kammprofile |
| Pressure Range | Spiral Wound: Vacuum to 2,500 psi / RTJ: Up to 20,000 psi |
| Temperature Range | -320°F to +1500°F (-196°C to +815°C) depending on materials |
| Winding Materials | 304/316 Stainless Steel, Inconel 600/625, Hastelloy C-276, Monel 400, Titanium |
| Filler Materials | Flexible Graphite, PTFE, Ceramic Fiber, Mica |
| RTJ Materials | Soft Iron, 304/316 SS, Monel, Inconel, Duplex Stainless |
| Flange Standards | ASME B16.5, B16.20, B16.47, API 6A, API 601, MSS SP-44 |
| Gasket Sizes | 1/2" through 120" NPS (DN15 to DN3000) |
| Pressure Classes | 150# to 2500# ANSI, PN10 to PN420 |
| RTJ Ring Profiles | R-Type (Oval), RX-Type (Octagonal), BX-Type (Octagonal Pressure Energized) |
| Inner/Outer Rings | Carbon Steel, 304/316 Stainless Steel per application requirements |
| Compliance | ASME, API, NACE MR0175/ISO 15156, Fire Safe API 607 |
