Leading Flanges Supplier & Manufacturer for Singapore’s Marine, Petrochemical, and Infrastructure Sectors
Werner Flanges is a leading manufacturer and exporter of premium industrial flanges to Singapore, serving the nation's thriving marine, petrochemical, oil & gas, and construction sectors for over three decades. As a direct manufacturer based in India with extensive experience supplying to Southeast Asian markets, we provide comprehensive flange solutions to companies across Singapore's major industrial hubs including Jurong Island, Tuas, Sembawang, and the city's bustling port facilities.
Our product portfolio encompasses the complete range of ASME B16.5 flanges including weld neck, slip on, blind, socket weld, threaded, and lap joint flanges, manufactured in various materials including carbon steel (ASTM A105), stainless steel (304, 304L, 316, 316L), alloy steel (F11, F22, F91), and duplex/super duplex grades (F51, F53, F55). We supply flanges in all pressure classes from 150# to 2500# and sizes ranging from ½” to 60″, meeting the demanding requirements of Singapore’s world-class industrial infrastructure.
Every flange supplied to Singapore complies with international standards including ASME B16.5, ASME B16.47, DIN, EN, and BS standards, backed by complete material traceability, third-party inspection reports, and ISO 9001:2015 certification. With strategic logistics partnerships and efficient sea freight routes from Indian ports to Singapore’s PSA terminals, we ensure timely delivery with competitive pricing that helps our Singaporean clients maintain project schedules and budget targets.
Singapore's position as one of the world's busiest ports and a global maritime hub creates substantial demand for high-quality flanges in shipbuilding, ship repair, and offshore construction. We supply marine-grade stainless steel and duplex flanges to Singapore's renowned shipyards including Sembcorp Marine, Keppel Offshore & Marine, and ST Engineering Marine, serving applications in vessel piping systems, ballast systems, fuel lines, and deck machinery. Our flanges meet DNV-GL, Lloyd's Register, and ABS classification society requirements essential for maritime certification.
Singapore Marine Flanges | Shipbuilding & Offshore Supply | Duplex & Stainless Steel | DNV-GL, LR & ABS Approved
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 |
| Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations |
Types of Flanges
| Slip On Flanges | Weld Neck Flanges | Blind Flanges | Socket Weld Flanges | Threaded Flanges |
| Lap Joint Flanges | Reducing Flanges | Orifice Flanges | Long Weld Neck Flanges | Plate Flanges |
Industries and Applications We Supply
| Industry | Applications |
|---|---|
Oil & Gas Industry |
Singapore serves as a strategic petroleum trading and storage hub with extensive tankage facilities in Jurong, Pulau Sebarok, and Pulau Bukom. We supply flanges for crude oil storage terminals, product blending facilities, and distribution networks operated by Vopak, Oiltanking, and Island Petroleum Services. Our carbon steel flanges with API 6A specifications are used in wellhead connections, while our stainless steel flanges serve product transfer systems handling various petroleum fractions. LNG applications include Singapore’s LNG terminal on Jurong Island, where our cryogenic-grade flanges (ASTM A350 LF2) operate reliably at temperatures down to -196°C in regasification units and send-out pipelines. |
Petrochemical Plants: |
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| Power Generation |
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With Singapore’s focus on water security through NEWater facilities and desalination plants, we supply corrosion-resistant stainless steel flanges to PUB (Public Utilities Board) projects including the Tuas Water Reclamation Plant, Marina Reservoir scheme, and Tuas Desalination Plant. Our duplex stainless steel flanges offer optimal resistance to chloride-containing water while providing cost advantages over super austenitic grades. Municipal water distribution networks, sewerage systems, and industrial wastewater treatment facilities across Singapore utilize our ductile iron and carbon steel flanges with fusion-bonded epoxy (FBE) coatings for extended service life. |
Frequently Asked Questions (FAQs)
- Q1: Do Werner Flanges meet Singapore regulatory requirements?
- Yes, all our flanges comply with Singapore Standards (SS) where applicable and international standards commonly specified by Singaporean consulting engineers including ASME, ASTM, DIN, BS, and EN standards. We provide complete documentation including material test certificates, dimensional inspection reports, and CE marking for PED compliance. Our products are routinely supplied to projects overseen by Singapore’s regulatory authorities including BCA, MOM, and NEA.
- Q2: What is the typical delivery time to Singapore?
- Standard sea freight delivery from our facility to PSA Singapore terminals is 18-22 days from order confirmation. This includes manufacturing time (5-10 days depending on material and size), quality testing (2-3 days), and ocean freight (10-12 days). For urgent requirements, we offer air freight with 5-7 days total delivery time. We can also supply from ready stock for common sizes (Class 150# and 300# in carbon steel and 316L stainless steel, sizes 2″ to 12″).
- Q3: Can you supply flanges for offshore and marine applications?
- Absolutely. We supply marine-grade stainless steel and duplex flanges meeting DNV-GL, Lloyd’s Register, ABS, and BV classification society requirements. Our super duplex F53/F55 flanges excel in seawater service and offshore environments. We provide all necessary certifications including material certificates, mechanical test results, and NACE compliance for sour service applications. Our flanges are regularly specified for vessels, offshore platforms, and subsea equipment manufactured in Singapore’s yards.
- Q4: Do you offer custom flange manufacturing?
- Yes, we manufacture custom flanges to client-specific drawings and specifications. This includes non-standard dimensions, special materials (titanium, Inconel, Hastelloy), unique facing configurations, and integrated assemblies (flanges with RTJ grooves, drain holes, or thermowells). Our engineering team can review your drawings and provide technical feedback, alternative suggestions, and value engineering input. Custom manufacturing typically adds 3-5 days to standard lead times.
- Q5: What payment terms do you offer?
- For new clients, we typically require 50% advance payment with the balance against copy of shipping documents. For established clients with good payment history, we offer credit terms of 30-60 days from bill of lading date. We accept payment via telegraphic transfer (T/T), letter of credit (L/C) from Singaporean banks, and can work with trade credit insurance arrangements. All pricing is in USD or SGD (by mutual agreement) with transparent conversion rates.
- Q6: Can Singapore-based third-party inspectors visit your facility?
- Yes, we welcome third-party inspection by recognized agencies with offices in Singapore including TÜV SÜD, DNV, Lloyd’s Register, Bureau Veritas, and SGS. Inspection can be arranged at any stage of manufacturing including raw material receipt, heat treatment, machining, and final testing. There are no access restrictions, and we provide full cooperation including documentation review, witness testing, and manufacturing process audits. Inspection costs are borne by the client and typically range from USD 500-1500 depending on scope and duration.
GET A QUOTE
- Contact Werner Flanges Singapore:
Email: sales@wernerflanges.com




