Flanges Exporter & Supplier in Oman

Leading Supplier & Exporter of Flanges to Oman

Werner Flanges is a leading manufacturer and exporter of industrial pipe flanges to the Sultanate of Oman, supplying high-integrity forged flanges to engineering procurement contractors (EPCs), trading houses, maintenance firms, and direct end-users across Oman's upstream, midstream, and downstream industries.
With manufacturing capabilities spanning the full range of flange types — weld neck, blind, slip-on, socket weld, threaded, lap joint, and orifice flanges — and materials from carbon steel through super duplex and nickel alloys, Werner Flanges is equipped to serve Oman's most demanding projects: from PDO's onshore oil fields in the North Oman interior, to the LNG liquefaction trains at Qalhat near Sur, to the world-scale refinery and petrochemical complex taking shape at the Duqm Special Economic Zone

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All flanges are manufactured in compliance with international standards including ASME B16.5, ASME B16.47, DIN 2633, BS 4504, and MSS SP-44, and are available in pressure classes from 150# to 2500# and sizes from ½” to 60″. Third-party inspection by Bureau Veritas, DNV, Lloyd’s Register, TÜV, SGS, and Intertek is coordinated as standard.

We export regularly to Oman’s major industrial centres — Muscat, Sohar, Salalah, Sur, Duqm, Nizwa, Barka, and Ibri — via Port Sultan Qaboos, Port of Sohar, Port of Salalah, and Port of Duqm, with sea freight transit times of 18–24 working days and air freight options to Muscat International Airport within 5–7 days for urgent project requirements.

Werner Flanges is a leading flange exporter to Oman, supplying ASME B16.5 forged flanges, ASTM A105 carbon steel flanges, stainless steel flanges, duplex flanges, and NACE MR0175 sour service flanges to projects across Muscat, Sohar, Salalah, Sur, Duqm, Nizwa, Ibri, and Barka. Our Oman supply scope includes weld neck flanges Oman, blind flanges Oman, slip-on flanges Oman, socket weld flanges Oman, orifice flanges Oman, large bore ASME B16.47 flanges Oman, RTJ flanges PDO Oman, Class 150 to Class 2500 flanges Oman, cryogenic LF2 flanges Oman LNG, F22 alloy steel flanges Sohar refinery, duplex F51 flanges seawater injection Oman, and super duplex F53 flanges offshore Oman. We export to Port Sultan Qaboos, Port of Sohar, Port of Salalah, and Port of Duqm with complete EN 10204 Type 3.1/3.2 documentation, third-party inspection, and NACE compliance certification.

Specifications

Specification	Details
Pressure Rating	Class 150 to Class 2500
Flange Type	Plate Flange
Facing Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Size Range	½” to 24” (DN 15 to DN 600)
Temperature Range	-29°C to +593°C (Depending on Material & Pressure Class)
Applications	Oil & Gas, Petrochemical, Power Generation, Water Treatment, Marine & Industrial Sectors
Manufacturing Process	Forged / Machined
Certification	EN 10204 3.1 / 3.2, IBR, NACE MR0175 / ISO 15156 (as applicable)

Matel and Grade

Type of Materials	Common Specifications / Customization Available on Request
Duplex Steel	ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205
Super Duplex Steel	ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo)
Stainless Steel	ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347
Carbon Steel	ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II
Alloy Steel	ASTM/ASME A182 F1, F5, F9, F11, F12, F22
Non-Ferrous Alloys	Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy
Titanium	ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel	ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
Brass, Al-Brass	ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass
Nickel Alloys	ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500
Alloy 20	ASTM B462 UNS N08020
Hastelloy	ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22)
Cladded Materials	ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals
Cladded Materials	Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations

Types of Flanges

Weld Neck Flanges Supplier in Oman	Raised Face Weld Neck Flanges Oman	Flat Face Weld Neck Flanges Oman	RTJ Weld Neck Flanges Oman	Long Weld Neck Flanges Oman
High Pressure Weld Neck Flanges Oman	Forged Weld Neck Flanges Oman	Reducing Weld Neck Flanges Oman	Industrial Weld Neck Flanges Oman	Custom Weld Neck Flanges Oman

Industries and Applications We Supply

Industry	Applications
Oil & Gas Industry	Oman’s upstream and offshore oil and gas production, particularly in the Arabian Sea and central fields, relies heavily on weld neck flanges for critical production and processing systems. Major operators such as PDO and Occidental Petroleum deploy flanges across high-pressure applications. Upstream Applications: Weld neck flanges are used in wellhead christmas trees, production manifolds, separator nozzles, and high-pressure injection lines. Materials meeting NACE MR0175 and RTJ specifications are standard for sour gas and high-pressure well conditions. Midstream Pipeline Applications: Oman’s gas and crude transmission pipelines require weld neck flanges at compressor stations, block valves, subsea tie-ins, and reception terminals feeding domestic refineries and export facilities. Flanges support pressures up to 1,000 psi in offshore and onshore pipelines. LNG & Export Terminals: LNG export terminals and regasification facilities, such as Qalhat LNG, use cryogenic weld neck flanges in ASTM A350 LF2 and stainless steel grades for unloading arms, storage tank nozzles, and send-out pipelines.
Power Generation	Oman’s gas-fired and combined cycle power plants utilize weld neck flanges for high-temperature and high-pressure steam, fuel gas, and auxiliary piping systems. Gas-Fired Power Plants: Applications include HRSG piping, boiler feedwater circuits, turbine bypass systems, superheater/reheater lines, and condensate systems. Alloy steel grades like F22 and F91 are commonly specified. Renewable & Biomass Facilities: Emerging solar and biomass projects use stainless steel flanges in process piping, cooling circuits, and utility systems supporting Oman’s renewable energy initiatives.
Petrochemical & Refining	Oman’s petrochemical and refining sectors, including Sohar and Salalah industrial complexes, require weld neck flanges in critical processing and utility lines. Petrochemical Processing: Flanges are deployed in ethylene, ammonia, and chemical feed piping, refrigeration trains, and high-pressure steam systems using alloy and stainless steel grades. Refinery Applications: Refineries use weld neck flanges for crude distillation units, hydrocracking, cooling water, and utility networks where high integrity and thermal stability are essential. Specialty Chemical Production: High-alloy and duplex stainless steel flanges are used in chemical storage and transfer systems handling corrosive feedstocks and acid streams.
Water & Industrial Utilities	Oman’s industrial estates and urban infrastructure require reliable water and utility piping systems supported by weld neck flanges. Water Treatment & Desalination: Stainless steel flanges are used in seawater intake pipelines, RO membranes, high-pressure brine discharge, and potable water distribution systems. Industrial Utility Systems: Manufacturing and processing plants employ carbon steel and stainless steel weld neck flanges in compressed air, cooling water, and process water networks.

Frequently Asked Questions (FAQs)

Q1: Are your flanges compliant with PDO’s material procurement specifications?

yes. we manufacture to the normalized, nace-compliant, and fully certified standards required by pdo’s dep specifications. we recommend customers share their material requisition (mr) at rfq stage so we can confirm compliance item by item before order placement.

Q2: Can you supply the full range of flange types for a single Oman project?

yes. werner flanges manufactures all standard flange types — weld neck, blind, slip-on, socket weld, threaded, lap joint, orifice, and spectacle blind — enabling a single source of supply for complete project flange packages. this simplifies vendor qualification, consolidates documentation, and reduces shipment complexity.

Q3: What is your typical lead time for flange orders destined for Oman?

stock items in high-runner carbon steel and stainless steel sizes ship within 1–2 weeks ex-works. non-stock items typically require 4–6 weeks production lead time. sea freight to oman ports adds 18–24 days. for critical path requirements, air freight to muscat international airport delivers in 5–7 days.

Q4: Do you work with third-party inspection bodies recognized by Omani operators?

yes. we coordinate with bureau veritas, dnv, lloyd’s register, tüv rheinland, sgs, and intertek — all recognized by pdo, oq, and oman lng. we manage all tpi logistics including witness and hold point scheduling, so customers do not need to handle this remotely.

Q5: Can you supply large bore flanges for Oman’s major pipeline and refinery projects?

yes. for sizes exceeding 24″, we manufacture per asme b16.47 series a (mss sp-44) and series b (api 605) in sizes up to 60″ — including for oman’s major trunk pipeline and refinery projects at sohar, duqm, and sur.

Q6: What Incoterms do you offer for Oman shipments?

we offer ex-works (exw), fob, cfr, and cif to omani ports including port sultan qaboos (muscat), port of sohar, port of salalah, and port of duqm. we can also arrange door-to-site delivery on request.