Gulf Union Ozone stocks a comprehensive range of flange gaskets and industrial sealing materials for oil and gas, petrochemical, and process piping applications across Saudi Arabia. Ring type joint (RTJ) gaskets, spiral wound gaskets, kammprofile gaskets, full face and raised face sheet gaskets, and graphite sealing materials — to ASME B16.20, API 6A, and NACE MR0175. ISO 9001:2015 certified (CR 4030570569). Full MTC documentation. Same-day dispatch from Jeddah.

Gulf Union Ozone stocks all principal gasket types for ASME and API pressure flange applications in Saudi Arabia oil and gas, petrochemical, and utility services.
Oval and octagonal RTJ gaskets to ASME B16.20 for ASME B16.5 Class 600 through 2500 flanges and API 6A wellhead equipment. Materials: soft iron ASTM A108 Grade 1018 (Brinell ≤ 90 HB), low-carbon steel F5 (≤ 137 HB), SS 304 (≤ 160 HB), SS 316L (≤ 160 HB), and Inconel 625 for sour or extreme high-pressure service. Ring numbers R-11 through R-105 (octagonal) and RX/BX gaskets for API 6A 10,000 PSI and 15,000 PSI wellhead connections. Supplied with MTC and dimensional reports per ASME B16.20.
Spiral wound gaskets to ASME B16.20 for ASME B16.5 Class 150 through 2500 raised face (RF) and flat face (FF) flanges. Winding strip: SS 304, SS 316L, Alloy 825, or Hastelloy C-276. Filler: flexible graphite (most common), PTFE, or mica for high-temperature service. Centering ring: carbon steel (zinc phosphated) or SS 304/316. Inner ring (SS 316L) for Class 600 and above as required by ASME B16.20. NACE MR0175 compliant for sour gas service. Pressure classes 150, 300, 600, 900, 1500, 2500. Supplied per ASME B16.20 with full MTC documentation.
Kammprofile gaskets with concentric grooved metal core (SS 316L) and flexible graphite or PTFE sealing layer on both faces. For ASME B16.5 Class 150 to 2500 flanges where semi-metallic sealing with high load recovery is required — heat exchangers, pressure vessels, and critical high-pressure services. Core thicknesses 3 mm and 4.5 mm; graphite layer 0.5 mm each face. Also available with integral centering guide ring for tube sheet and heat exchanger applications. Temperature range -200°C to 550°C depending on layer material.
Compressed non-asbestos fibre (CNAF) sheet gaskets in Flexitallic Sigma 500 (aramid fibre/NBR binder) and Garlock Blue-Gard 3000 equivalents — suitable for water, steam, oils, and mild chemicals to 260°C and 100 bar. Flexible graphite sheet (GRAFOIL equivalent, reinforced with SS 316 tanged insert) for high-temperature steam, acid, and hydrocarbon service to 550°C. Sheet stock 0.8 mm, 1.5 mm, 3.0 mm, 4.5 mm in sizes up to 1500 × 1500 mm for field cutting. Full-face (FF) and raised-face (RF) rings cut to ASME B16.21 dimensions.
Full-PTFE flat gaskets and PTFE envelope gaskets (PTFE skin over CNAF core) for corrosive chemical, pharmaceutical, and food-grade flange connections in Saudi Arabia. Virgin PTFE sheet gaskets for concentrated acids and alkalis — hydrofluoric acid, chlorine, and aggressive solvents where other materials fail. PTFE envelope gaskets (ASME B16.21) with non-asbestos insert for raised face flanges in chemical plant and water treatment systems. Dimensions ASME B16.21 Class 150 to 300. FDA-compliant PTFE for food and pharmaceutical service.
TEMA-standard sheet gaskets for shell-and-tube heat exchangers (OD-cut ring for shell flange, full-face for tube-side channel), in CNAF, graphite, and PTFE. Elastomeric expansion joint sealing rings in EPDM (water, steam to 150°C), Neoprene (oil-resistant), and Viton (chemical and hydrocarbon service). Jacketed metallic gaskets with corrugated SS core and graphite or PTFE jacket for heat exchanger floating head and fixed tube sheet sealing. High-temperature boiler handhole and manhole gaskets in spiral wound and solid metal designs.
Representative stock lines. Full MTC and ASME B16.20 dimensional documentation included. Contact us for non-standard sizes and materials.
| Product | Standard | Material | Size / Pressure Class | Application |
|---|---|---|---|---|
| RTJ Oval Gasket — Soft Iron | ASME B16.20 / ASTM A108 Gr.1018 | Soft Iron (≤ 90 HB) | R-11 to R-105; Class 600–2500 | High-pressure oil and gas flanges, ASME B16.5 |
| RTJ Octagonal Gasket — Low Carbon Steel | ASME B16.20 / API 6A | LCSF5 (≤ 137 HB) | R-11 to R-105; Class 600–2500 | Refinery, pipeline, and compressor station flanges |
| RTJ Octagonal Gasket — SS 316L | ASME B16.20 / NACE MR0175 | Stainless Steel 316L (≤ 160 HB) | R-11 to R-105; Class 600–2500 | Corrosive and sour-gas service flanges in KSA plants |
| RTJ BX Gasket — API 6A (SS 316L) | API 6A / API 17D | SS 316L (HH / FF trim) | BX 150 to BX 303; 10K / 15K PSI | Wellhead, Xmas tree, and subsea flange connections |
| RTJ RX Gasket — API 6A (Soft Iron) | API 6A | Soft Iron or F5 | RX 20 to RX 91; 2K–5K PSI | Wellhead and API 6BX flange connections |
| Spiral Wound Gasket — SS 316L / Graphite, RF | ASME B16.20 | SS 316L winding; graphite filler; CS ring | ½″ to 24″; Class 150 to 2500 | General process flanges, steam, hydrocarbons |
| Spiral Wound Gasket — SS 316L / PTFE, RF | ASME B16.20 | SS 316L winding; PTFE filler | ½″ to 24″; Class 150 to 600 | Chemical service, acids, alkalis where graphite unsuitable |
| Spiral Wound Gasket — Alloy 825 / Graphite (NACE) | ASME B16.20 / NACE MR0175 | Alloy 825 winding; graphite filler; SS 304 ring | ½″ to 24″; Class 150 to 2500 | Sour-gas and H₂S service in oil and gas plants |
| Spiral Wound Gasket — Class 600 with Inner Ring | ASME B16.20 (inner ring required ≥ 600) | SS 316L winding, graphite, SS 316L inner ring | ½″ to 24″; Class 600 to 2500 | High-pressure pipework; prevents inward buckling |
| Kammprofile Gasket — SS 316L / Graphite | EN 12560-6 | SS 316L core (3 mm); graphite 0.5 mm layer | ½″ to 60″; Class 150 to 2500 | Heat exchangers, pressure vessels, critical joints |
| Kammprofile Gasket — SS 316L / PTFE | EN 12560-6 | SS 316L core; PTFE layer 0.5 mm | ½″ to 60″; Class 150 to 600 | Chemical plant, corrosive fluid, low bolt load flanges |
| Sheet Gasket — CNAF Sigma 500, 1.5 mm | DIN 28090-1 / EN 13555 | Aramid fibre / NBR binder | Sheets 1500 × 1500 mm; 0.8–4.5 mm thick | Water, steam, oils, mild chemicals to 260°C/100 bar |
| Sheet Gasket — Graphite Reinforced (Tanged SS), 1.5 mm | DIN 28090-2 | Flexible graphite + SS 316 tanged insert | Sheets 1500 × 1500 mm; 1.5 mm and 3.0 mm | High-temperature steam, acid, hydrocarbons to 550°C |
| Full-Face Gasket (FF) — CNAF, Cut to B16.21 | ASME B16.21 | CNAF 3 mm | ½″ to 24″; Class 150 FF | Cast iron and ductile iron FF flanges, water mains |
| Raised-Face Ring Gasket (RF) — CNAF | ASME B16.21 | CNAF 1.5 mm or 3 mm | ½″ to 24″; Class 150 to 300 RF | Low-to-medium pressure piping, water and utility services |
| PTFE Full-Face Gasket | ASME B16.21 | Virgin PTFE, 3 mm | ½″ to 24″; Class 150 | Concentrated acids, alkalis, HF, chlorine service |
| PTFE Envelope Gasket — CNAF Core | ASME B16.21 | PTFE envelope; CNAF filler insert | ½″ to 24″; Class 150 to 300 | Chemical plant, pharmaceutical, food-grade flanges |
| Jacketed Metallic Gasket — SS / Graphite | ASME B16.20 | Corrugated SS 316L core; graphite jacket | Custom ID/OD; Class 150 to 2500 | Heat exchanger tube-sheet and shell-side sealing |
| Non-Asbestos Jointing Sheet — 3 mm | BS 7531 Grade X / EN 1514-1 | Glass fibre / NBR binder | Sheets 1500 × 1500 mm; 1.5 mm, 3 mm, 4.5 mm | General industrial gasketing, field cutting to any shape |
| Elastomeric Gasket — EPDM, Class 150 | ASME B16.21 / EN 1514-1 | EPDM 3 mm | ½″ to 24″; Class 150 FF | Water and steam flanges to 150°C, fire systems |
| Elastomeric Gasket — Viton (FKM), Class 150 | ASME B16.21 | FKM (Viton) 3 mm | ½″ to 24″; Class 150 | Hydrocarbons, aromatic solvents, and chemicals to 200°C |
| Manhole Gasket — Spiral Wound, Large OD | ASME B16.20 / API 650 | SS 316L winding; graphite filler | OD 400 mm to 900 mm; custom | Storage tank manholes, pressure vessel access ports |
| Heat Exchanger Gasket — TEMA RGP, CNAF | TEMA / ASME PCC-1 | CNAF 3 mm; OD-cut ring | Shell OD 150 to 1200 mm; custom | Shell-and-tube heat exchanger shell and channel flanges |
| Condenser Waterbox Gasket — Neoprene | ASME B16.21 | Neoprene (CR) 6 mm | Large-bore custom OD/ID | Condenser waterboxes, cooling water, seawater service |
| Boiler Handhole Gasket — Graphite | ASME I / ASME VIII | Flexible graphite reinforced, 3 mm | Standard handhole oval (108 × 83 mm common) | Fire-tube and water-tube boiler handhole covers |
| Boiler Manhole Gasket — Graphite | ASME I | Flexible graphite reinforced, 3 mm | Standard manhole elliptical 305 × 406 mm common | Boiler drum manhole covers for steam and hot water boilers |
| Lens Ring Gasket — SS 316L | API 16A / DIN 2696 | SS 316L machined | DN15 to DN200; PN 160 to PN 400 | High-pressure instrument connections and BOP equipment |
| Spiral Wound Gasket — Inconel 625 / Graphite | ASME B16.20 / NACE MR0175 | Inconel 625 winding; graphite filler | ½″ to 24″; Class 600 to 2500 | Extreme sour service, high-temp, corrosive flanges |
| Gasket Tape — PTFE Expanded | FDA / NSF approved | ePTFE; self-adhesive backing | Width 12 mm – 50 mm; roll 30 m | Field sealing of irregular, non-standard, and damaged flanges |
| Spiral Wound Gasket — Inner + Outer Ring, Class 900 | ASME B16.20 | SS 316L winding; graphite; SS inner + CS outer ring | ½″ to 24″; Class 900 | Petrochemical and refinery high-pressure process lines |
Spiral wound and RTJ gaskets in the most common classes and sizes are held in Jeddah — available same-day for plant turnarounds and emergency flange repairs throughout KSA, reducing costly shutdown extensions.
Every gasket order is accompanied by EN 10204 3.1 MTCs for winding/core material, hardness test records for RTJ gaskets, dimensional inspection reports per ASME B16.20, and Certificates of Conformance.
Gulf Union Ozone is ISO 9001:2015 certified (CR 4030570569), Jeddah. NACE MR0175-compliant sour-service gaskets supplied with hardness test certificates. Traceability maintained from mill to delivery.
Delivery to all 18 Saudi regions — Jubail, Yanbu, Ras Tanura, Dammam, Riyadh, and Jizan. Gaskets dispatched same-day in protective packaging to prevent surface damage during transport.
Weld neck, blind, slip-on, socket weld and threaded flanges in ASTM A105 and A182. Class 150 to 2500 from Jeddah stock.
A193 B7 stud bolts, A194 2H heavy hex nuts, and NACE B7M/2HM sets for ASME pressure flange bolting throughout KSA.
Rotary shaft oil seals, O-rings (NBR, Viton, EPDM, PTFE), and backup rings for rotating equipment and valve packing applications.
API 600 gate valves, API 607 ball valves, globe and check valves in CS and SS for oil and gas piping across Saudi Arabia.
Send us your gasket type (RTJ, spiral wound, sheet), flange size, ASME class or API rating, material, quantity, and delivery location in Saudi Arabia. We will confirm stock availability and pricing within one business day. EN 10204 3.1 MTCs included with every order.
CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia
Inventory updated: August 2026
Gulf Union Ozone Trading Co. supplies Flange Gaskets & Sealing Materials to industrial customers across Saudi Arabia with delivery from our Jeddah warehouse — all products ship with original Mill Test Certificates and Certificates of Conformance.
Flange Gaskets & Sealing Materials from Gulf Union Ozone serves Saudi Aramco SAEP-347 projects, SABIC, SADARA, SEC utilities, NEOM mega-projects, and industrial facilities across the Kingdom — our inventory covers the most common material grades and pressure ratings.
Gulf Union Ozone stocks a wide range of Flange Gaskets & Sealing Materials including various grades, sizes, and pressure classes — contact us on WhatsApp for immediate availability confirmation and a quotation with full MTC documentation.
For urgent Flange Gaskets & Sealing Materials procurement in Saudi Arabia, WhatsApp +966 55 098 8062 — our procurement team confirms stock availability within the hour and provides competitive quotations with full compliance documentation for Aramco, SABIC, SEC, and government projects.