Spectacle Blinds & Line Blinds — Saudi Arabia

Spectacle Blinds & Line Blinds Supplier Saudi Arabia — Figure-8 Blinds, Spade Blinds & Slip Blinds In Stock

Gulf Union Ozone stocks a complete range of piping isolation blinds for process plant maintenance and shutdown operations across Saudi Arabia. Our inventory covers spectacle blinds (figure-8 blinds), spade blinds (paddle blanks), slip blinds, drilled blinds, line blind assemblies, and spacer rings — all manufactured to ASME B16.48 and API 590. Pressure classes 150, 300, 600, 900, 1500, and 2500. Materials include carbon steel ASTM A516 Gr.70, stainless steel 304/316/316L (ASTM A240), duplex stainless steel UNS S31803 (ASTM A182 F51), and Inconel 625 (ASTM B443) for high-alloy and sour-service applications. EN 10204 3.1 MTCs supplied with every order. ISO 9001:2015 certified (CR 4030570569). Same-day dispatch from our Jeddah warehouse.

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Spectacle blinds and spade blinds for piping isolation in Saudi Arabia oil and gas plants — Gulf Union Ozone Jeddah
StandardsASME B16.48 · API 590 · ASME B31.3 · NACE MR0175
Pressure ClassesClass 150 / 300 / 600 / 900 / 1500 / 2500
MaterialsCS A516 Gr.70 · SS 316L · Duplex S31803 · Inconel 625
DispatchSame-day from Jeddah
QualityISO 9001:2015 · EN 10204 3.1 MTCs
Spectacle Blinds & Line Blinds Categories

Product Types in Stock

Gulf Union Ozone carries six spectacle blind and line blind product families to ASME B16.48 and API 590, with EN 10204 3.1 Material Test Certificates and full dimensional inspection for every shipment to Saudi Arabia process plants.

Type 01

Spectacle Blinds (Figure-8 Blinds)

The standard double-disk figure-8 line blind to ASME B16.48 — combining a solid blind disk and an open ring (spacer) in a single rotating assembly for quick isolation or flow restoration without breaking the flange connection. Available in all six ASME pressure classes (150 to 2500) and NPS ½" to 24" in carbon steel ASTM A516 Gr.70, stainless steel 304/316/316L (ASTM A240), duplex SS UNS S31803, and Inconel 625. Raised face (RF), flat face (FF), and ring-type joint (RTJ) facings. NACE MR0175 / ISO 15156 compliant versions with HIC-tested carbon steel for sour service in Saudi Aramco and SABIC facilities. Wall thickness and disk diameter per ASME B16.48 Table 1 pressure-temperature ratings. PMI testing and hardness verification available on request.

Type 02

Spade Blinds (Paddle Blanks)

Solid single-disk paddle blanks (spade blinds) to ASME B16.48 for permanent or long-term pipe isolation where a separate spacer ring (slip blind) is installed in the open-flow position. Spade blinds in NPS ½" to 24", pressure classes 150 to 2500. Materials: carbon steel ASTM A516 Gr.70 (ASME Group 1.1), SS 316/316L (ASTM A240 S31600/S31603), duplex SS UNS S31803 (ASTM A240 S31803), and Inconel 625 (ASTM B443) for high-alloy process lines. Tapered handle with identification hole to ASME B16.48 Annex A. RTJ groove machined to ASME B16.20 on Class 600 and above. Sour-service spade blinds with NACE TM0284 HIC test reports stocked for H2S-containing hydrocarbon lines. Dimensional and visual inspection report with every order.

Type 03

Slip Blinds (Spacer Rings)

Open-bore spacer rings (slip blinds / spectacle blind spacers) used in conjunction with spade blinds to maintain gasket-face standoff when the line is in flow service. Manufactured to ASME B16.48 dimensional requirements, matching the pressure class and NPS of the mating spade blind. Available in NPS ½" to 24", all pressure classes 150 to 2500. Materials: carbon steel ASTM A516 Gr.70, stainless steel 304/316/316L, and duplex SS UNS S31803. Raised face and RTJ facings. Identification handle with through-hole per ASME B16.48 Annex A. Slip blinds are supplied as matched pairs with spade blinds for complete blind/spacer sets used in Saudi Arabia refinery and petrochemical plant turnaround (TAR) kits.

Type 04

Drilled Blinds

Drilled blinds (orifice blinds or restriction blinds) are solid blind disks with a precisely machined central orifice for flow restriction, pressure testing, pressure equalization, or sample point isolation duties. The orifice diameter is custom-machined per the process engineer's specification — typically ¼" to 2" bore in the blind disk. Manufactured to the same ASME B16.48 dimensional envelope as standard spade blinds in NPS ½" to 16", pressure classes 150 to 900. Materials: carbon steel A516 Gr.70, SS 316/316L, duplex SS. Orifice edge square-edged or bevelled per ASME B16.48 and AGA/ISO 5167 as required. Drilled blinds are routinely supplied for Saudi Arabia refinery and gas plant pressure-equalization and blowdown duties. Certificate of compliance and dimensional report with every order.

Type 05

Line Blind Assemblies (Iris / Rotating Type)

Complete inline line blind valve assemblies — also called rotating blinds or iris-type line blinds — for permanent in-line installation where frequent isolation is required without flange separation. The assembly consists of a flanged body housing a rotating steel blind disk that swings between the open (through-bore) and closed (blind) positions via an external lever or actuator. Available in carbon steel, SS 316L, and duplex SS; body flanged to ASME B16.5 Class 150 to 600; bore NPS 2" to 24". These are specified on Saudi Arabia gas plant inlet trains, pig launcher/receiver isolation, and manifold isolation duties where repeated pig-trap operations or process isolation are required without gasket change-out. Actuated (pneumatic, hydraulic, or electric) versions available on request with ATEX-rated actuators.

Type 06

Spacers, Ring-Type Joints & Blind Flange Sets

Complementary piping isolation components stocked alongside spectacle blinds: ring-type joint (RTJ) spacer rings machined to ASME B16.20 for Class 600/900/1500/2500 flanged joints; blind flanges to ASME B16.5 (NPS ½"–24") in carbon steel (ASTM A105), SS 304/316 (ASTM A182 F304/F316), and duplex SS (ASTM A182 F51) for blanking off open pipe ends; and full-face gaskets (spiral-wound with inner ring, ASME B16.20) for Class 300–2500 spectacle blind installations. Spectacle blind installation kits — including hex bolts, heavy hex nuts (ASTM A193 B7/A194 2H), and spiral-wound gaskets — supplied as complete TAR (turnaround) sets for Saudi Arabia refinery shutdown planning. ISO 9001:2015 QMS traceability on all fastener lots.

Product Catalog

Complete Spectacle Blinds & Line Blinds Range — 28 Products

All blinds supplied with EN 10204 3.1 Material Test Certificates. NACE MR0175 / HIC-tested grades available on request. ISO 9001:2015 QMS (CR 4030570569).

Product Standard / Spec Material Size / Class Range Application
Spectacle Blind — Carbon Steel A516 Gr.70, Class 150 (RF) ASME B16.48 / API 590 — Class 150 ASTM A516 Gr.70 carbon steel, raised face NPS ½"–24" Process piping isolation, utility lines, low-pressure hydrocarbon service
Spectacle Blind — Carbon Steel A516 Gr.70, Class 300 (RF) ASME B16.48 / API 590 — Class 300 ASTM A516 Gr.70, raised face NPS ½"–24" Refinery process lines, gas plant inlet trains, medium-pressure service
Spectacle Blind — Carbon Steel A516 Gr.70, Class 600 (RF/RTJ) ASME B16.48 — Class 600 ASTM A516 Gr.70, RF or RTJ facing NPS ½"–16" High-pressure hydrocarbon process, compressor inlet isolation
Spectacle Blind — Carbon Steel A516 Gr.70, Class 900 (RTJ) ASME B16.48 — Class 900 ASTM A516 Gr.70, ring-type joint facing NPS ½"–12" High-pressure gas pipeline isolation, upstream wellhead manifolds
Spectacle Blind — Carbon Steel A516 Gr.70, Class 1500 (RTJ) ASME B16.48 — Class 1500 ASTM A516 Gr.70, RTJ, NACE option available NPS ½"–8" HP gas / condensate process, gas export pipeline isolation
Spectacle Blind — Carbon Steel A516 Gr.70, Class 2500 (RTJ) ASME B16.48 — Class 2500 ASTM A516 Gr.70, ring-type joint, hardness controlled ≤22 HRC NPS ½"–4" Ultra-high-pressure wellhead / HPHT gas isolation duty
Spectacle Blind — Stainless Steel 304, Class 150 (RF) ASME B16.48 — Class 150 ASTM A240 TP 304 austenitic SS, raised face NPS ½"–24" Utility steam, water, non-corrosive chemical lines — corrosion-resistant service
Spectacle Blind — Stainless Steel 304, Class 300 (RF) ASME B16.48 — Class 300 ASTM A240 TP 304, raised face NPS ½"–16" Desalination, food processing, pharmaceutical — medium pressure
Spectacle Blind — Stainless Steel 316/316L, Class 150 (RF) ASME B16.48 — Class 150 ASTM A240 TP 316/316L dual-certified, raised face NPS ½"–24" Chemical process, seawater cooling, chloride-containing environments
Spectacle Blind — Stainless Steel 316/316L, Class 300 (RF) ASME B16.48 — Class 300 ASTM A240 TP 316/316L, raised face NPS ½"–16" Refinery process, acid service, sour water strippers — medium pressure
Spectacle Blind — Stainless Steel 316/316L, Class 600 (RF/RTJ) ASME B16.48 — Class 600 ASTM A240 TP 316/316L, RF or RTJ NPS ½"–12" Aggressive chemical service, high-chloride process piping isolation
Spectacle Blind — Duplex SS UNS S31803, Class 150 (RF) ASME B16.48 — Class 150; ASTM A182 F51 Duplex SS UNS S31803 / 2205, raised face NPS ½"–16" Seawater, chloride-stressed process, offshore topside piping isolation
Spectacle Blind — Duplex SS UNS S31803, Class 300 (RF) ASME B16.48 — Class 300; NACE MR0175 Pt 3 Duplex SS 2205, NACE compliant, raised face NPS ½"–12" Sour gas with elevated H2S partial pressure, corrosive gas injection lines
Spectacle Blind — Duplex SS UNS S31803, Class 600 (RTJ) ASME B16.48 — Class 600 Duplex SS 2205, ring-type joint NPS ½"–8" High-pressure sour or chloride service, subsea topside tie-in isolation
Spectacle Blind — Inconel 625, Class 300 (RF) ASME B16.48 — Class 300; ASTM B443 UNS N06625 Inconel 625 nickel alloy, raised face NPS ½"–8" Severe corrosion / high-temperature service, acid gas, Claus unit isolation
Spade Blind (Paddle Blank) — CS A516 Gr.70, Class 150 (RF) ASME B16.48 — Class 150 ASTM A516 Gr.70 carbon steel, raised face NPS ½"–24" Long-term process isolation, maintenance isolation, commissioning blanking
Spade Blind — CS A516 Gr.70, Class 300 (RF) ASME B16.48 — Class 300 ASTM A516 Gr.70, raised face, with identification handle NPS ½"–20" Refinery turnaround isolation, compressor suction/discharge blanking
Spade Blind — CS A516 Gr.70, Class 600 (RTJ) ASME B16.48 — Class 600; RTJ groove to ASME B16.20 ASTM A516 Gr.70, ring-type joint machined NPS ½"–12" High-pressure compressor isolation, gas export manifold blanking
Spade Blind — SS 316/316L, Class 150 (RF) ASME B16.48 — Class 150 ASTM A240 TP 316/316L, raised face NPS ½"–20" Chemical plant, seawater service, desalination process isolation
Spade Blind — SS 316/316L, Class 300 (RF) ASME B16.48 — Class 300 ASTM A240 TP 316/316L, raised face NPS ½"–12" Aggressive process isolation, acid service, chloride-bearing process streams
Spade Blind — Duplex SS UNS S31803, Class 300 (RF) ASME B16.48 — Class 300; NACE MR0175 Pt 3 Duplex SS 2205, NACE MR0175, raised face NPS ½"–12" Sour gas isolation, offshore process, corrosion-resistant service
Slip Blind (Spacer Ring) — CS A516 Gr.70 — All Classes ASME B16.48 — Classes 150–2500 ASTM A516 Gr.70, raised face or RTJ as specified NPS ½"–24" Mating spacer for spade blind sets; maintains gasket-face standoff in flow position
Slip Blind (Spacer Ring) — SS 316L — Classes 150–600 ASME B16.48 — Classes 150/300/600 ASTM A240 TP 316L, raised face or RTJ NPS ½"–16" Corrosive service spacer ring paired with SS 316L spade blind sets
Drilled Blind — CS A516 Gr.70, Class 150–600 (Custom Orifice) ASME B16.48 dimensional; orifice per customer spec ASTM A516 Gr.70 carbon steel NPS ½"–16"; orifice ¼"–2" bore Pressure equalization, restriction orifice, blowdown, hydrostatic test point
Drilled Blind — SS 316/316L, Class 150–300 (Custom Orifice) ASME B16.48 dimensional; orifice per customer spec ASTM A240 TP 316/316L SS NPS ½"–12"; orifice ¼"–1½" bore Chemical plant, desalination restriction duty in corrosive service
Line Blind Assembly — Carbon Steel / SS 316L Body ASME B16.5 flanged body; ASME B16.48 blind disk CS body; 316L blind disk; rising stem assembly NPS 2"–24"; Class 150–600 Pig launcher/receiver isolation, process manifold line blind duty
Spectacle Blind — NACE MR0175 / HIC-Tested CS A516 Gr.70 ASME B16.48; NACE MR0175 / ISO 15156; NACE TM0284 HIC test ASTM A516 Gr.70, HIC-tested, hardness ≤22 HRC / 200 HBW NPS ½"–16"; Classes 150–1500 Sour service (H2S-containing) piping isolation in Saudi Aramco facilities
RTJ Blind Flange — CS A105, Class 600/900/1500/2500 ASME B16.5 / ASME B16.20 RTJ groove ASTM A105N carbon steel, normalised NPS ½"–12"; Classes 600–2500 High-pressure pipe-end blanking, hydrostatic test end-cap
Spectacle Blind Installation Kit (Bolts, Nuts & Gaskets) ASME B16.5 / ASME B16.20; ASTM A193 B7 / A194 2H B7 stud bolts, 2H heavy hex nuts, SW gasket 316L/flexible graphite NPS ½"–24"; all pressure classes Complete TAR kit for spectacle blind change-out — Saudi Arabia shutdown supply
Why Us

Why Saudi Arabia Piping Contractors Choose Gulf Union Ozone for Spectacle Blinds

⚡

Shutdown-Ready Stock in Jeddah

Core spectacle blind sizes in CS A516 Gr.70 and SS 316/316L, Classes 150 and 300, NPS ½"–16" held in stock in Jeddah for same-day dispatch — critical for refinery turnaround and shutdown schedule compliance.

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EN 10204 3.1 MTCs & NACE Traceability

Every blind ships with EN 10204 3.1 Material Test Certificates. NACE MR0175 compliance statements, HIC test reports (NACE TM0284), and PMI (positive material identification) reports available on request for sour-service procurement.

🎍

ISO 9001:2015 Certified Quality

Gulf Union Ozone is ISO 9001:2015 certified (CR 4030570569), Jeddah, Saudi Arabia. Incoming dimensional inspection and hardness verification performed on every spectacle blind consignment.

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KSA-Wide TAR Supply Capability

Delivery of blind sets, installation kits (stud bolts, nuts, gaskets), and slip blind pairs to all Saudi Arabia regions — Jubail, Yanbu, Dammam, Jizan, Riyadh — coordinated with TAR scheduling for refinery and petrochemical plant shutdowns.

Related Products

Also Stocked at Gulf Union Ozone

Piping

Pipe Jacketing & Cladding

Corrugated aluminium jacketing, smooth cladding, PVC cladding, and stainless steel jacketing for insulated pipework in Saudi Arabia process plants.
Piping

Gaskets & Sealing

Spiral-wound gaskets (ASME B16.20), ring-type joint (RTJ) gaskets, kammprofile gaskets, and full-face gaskets for process piping flanged joints in Saudi Arabia.
Piping

Industrial Valves

Gate valves, globe valves, ball valves, check valves, and butterfly valves to API 600, API 6D, and ASME B16.34 for Saudi Arabia oil and gas piping systems.
Hardware

Stud Bolts & Fasteners

ASTM A193 B7 stud bolts, A194 2H heavy hex nuts, and flange bolt sets to ASME B16.5 for process piping flanged connections and spectacle blind installation across KSA.
Get a Quote

Request a Spectacle Blind Quotation

To get a fast quotation, provide: NPS (nominal pipe size), pressure class, blind type (spectacle/spade/slip/drilled), material grade, facing type (RF / RTJ / FF), fluid service (including H2S content for sour service), quantity, and delivery location in Saudi Arabia.

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Recent Deliveries

  • • NACE MR0175 spectacle blinds (ASME Class 600, Inconel 625 bolting) for a sour gas line at a Saudi Aramco facility, 2025
  • • CS spectacle blinds (ASME Class 150, API 590) for safe isolation during a Yanbu refinery turnaround, 2025
  • • Spade and spacer sets (ASME Class 300, SS 316L) for a Jubail petrochemical maintenance shutdown, 2025

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia  —  Saudi Aramco vendor compliance · SAEP-347 credentials

FAQ

Spectacle Blinds & Line Blinds — Frequently Asked Questions

What standards cover spectacle blinds and spade blinds supplied in Saudi Arabia?

Gulf Union Ozone supplies spectacle blinds manufactured to ASME B16.48, API 590, and ASME B31.3 across all six pressure classes (150–2500). EN 10204 3.1 MTCs accompany every order. NACE MR0175 / ISO 15156 and HIC-tested grades available for sour service in Saudi Arabia oil and gas facilities.

Do you supply spectacle blinds for sour service (H2S) in Saudi Arabia oil and gas plants?

Yes. Sour-service spectacle blinds are supplied to NACE MR0175 / ISO 15156 with NACE TM0284 HIC test reports and hardness controlled to ≤22 HRC. Duplex SS UNS S31803 (ASTM A182 F51) blinds compliant with NACE MR0175 Part 3 are stocked for elevated H2S partial pressure applications across Saudi Arabia upstream facilities.

Can you supply custom-size spectacle blinds for high-pressure pipeline isolation in Saudi Arabia?

Yes. Custom spectacle blinds and spade blinds in non-standard sizes, special facing types (RTJ), and high-pressure classes (900/1500/2500) are sourced from qualified ASME B16.48 fabricators. Required information: NPS, class, material, facing, fluid service, and any special inspection. Typical lead time 3–6 weeks. Contact us via WhatsApp 966550988062 with your line list or piping isometric.

Technical content reviewed by Gulf Union Ozone’s Engineering Team, Jeddah — 2026

Inventory updated: August 2026

In Summary

Gulf Union Ozone Trading Co. supplies Spectacle Blinds & Line Blinds to industrial customers across Saudi Arabia with delivery from our Jeddah warehouse — all products ship with original Mill Test Certificates and Certificates of Conformance.

In Summary

Spectacle Blinds & Line Blinds 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.

In Summary

Gulf Union Ozone stocks a wide range of Spectacle Blinds & Line Blinds including various grades, sizes, and pressure classes — contact us on WhatsApp for immediate availability confirmation and a quotation with full MTC documentation.

In Summary

For urgent Spectacle Blinds & Line Blinds 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.