Slip-On Flanges Supplier to the Philippines

Leading Manufacturer & Exporter of
Slip-On Flanges to the Philippines

Werner Flanges is a globally recognized manufacturer and exporter of high-quality slip-on flanges to the Philippines, serving the country's rapidly expanding oil & gas, power generation, shipbuilding, and water infrastructure sectors. With over two decades of manufacturing experience and ISO 9001:2015-certified production facilities, we supply slip-on flanges that conform to ASME B16.5, ANSI, DIN, and BS standards — meeting the rigorous requirements of Philippine industrial procurement teams and international EPC contractors operating in the region.

ANSI-B16-5-Class-2500-Slipon-flanges-sl1

ANSI-B16-5-Class-2500-Slipon-flanges-sl2

ANSI-B16-5-Class-2500-Slipon-flanges-sl3

From upstream oil and gas installations in the Malampaya field to power generation projects in Luzon, Visayas, and Mindanao, Werner Flanges delivers precision-engineered slip-on flanges in carbon steel, stainless steel, alloy steel, and duplex grades — in sizes ranging from ½” to 60″ and pressure classes from 150# to 2500#. We ship directly to major Philippine ports including the Port of Manila, Cebu International Port, and Davao Port, with standard sea freight delivery in 18–25 days and expedited air freight available for urgent requirements.

Philippine buyers trust Werner Flanges for our transparent material traceability, complete documentation packages, and responsive technical support. Whether you are a procurement officer sourcing flanges for a refinery expansion, an EPC contractor working on a natural gas pipeline, or a distributor building local inventory, we offer the technical expertise, competitive pricing, and reliable logistics to meet your project deadlines.

Werner Flanges is a leading slip-on flanges supplier in the Philippines, exporting ASME B16.5 slip-on flanges in carbon steel, stainless steel, alloy steel, and duplex materials to Manila, Cebu, Davao, Batangas, and Subic Bay. Our Philippine slip-on flange exports cover all pressure classes from 150# to 2500# in sizes ½" to 60". As a direct manufacturer, we supply A105 slip-on flanges Philippines, 316L stainless slip-on flanges Philippines, duplex slip-on flanges Philippines, and ASTM A182 slip-on flanges for oil & gas, power generation, shipbuilding, and water infrastructure projects. Contact Werner Flanges for competitive pricing, fast delivery, and complete documentation for your Philippine flange requirements.
slip-on flanges supplier Philippines ,ASME B16.5 slip-on flanges exporter Manila, stainless steel slip-on flanges Philippines price,carbon steel slip-on flanges Philippines delivery,duplex slip-on flanges Philippine offshore projects,ASTM A182 F316L slip-on flanges Cebu Philippines

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

Slip On Flanges	Raised Face Slip On Flanges	Flat Face Slip On Flanges	RTJ Slip On Flanges	Forged Slip On Flanges
Plate Slip On Flanges	Industrial Slip On Flanges	High Pressure Slip On Flanges	ASME B16.5 Slip On Flanges	ANSI Slip On Flanges

Industries and Applications We Supply

Industry	Applications
Oil & Gas Industry	The Philippines’ upstream oil and gas sector, centered on the Malampaya deep-water gas-to-power project off Palawan and the emerging offshore exploration blocks in the Recto Bank (Reed Bank) area, relies on high-integrity flanged piping systems for both offshore platform and onshore processing terminal applications. Slip-on flanges are used extensively in gas distribution headers, utility piping, produced water handling systems, and onshore pipeline interconnections. As the Philippines pursues new gas field developments to address its growing energy demand, demand for ASME B16.5 compliant flanges from certified international manufacturers continues to grow.
Petrochemical & Refining	The Batangas Industrial Area, Limay Petrochemical Zone in Bataan, and various industrial estates in Laguna and Cavite host chemical processing, refining, and manufacturing facilities that require reliable flanged piping components for corrosive, high-temperature, and high-pressure service. Stainless steel and duplex slip-on flanges are particularly specified for corrosive chemical handling, while carbon steel grades serve general process and utility lines. Werner Flanges’ broad material range ensures we can meet virtually any process requirement in Philippine chemical and petrochemical plants.
Power Generation	The Philippines has one of Southeast Asia’s most diverse power generation mixes, encompassing coal-fired plants (notably in Batangas, Cebu, and Davao), natural gas combined-cycle plants, geothermal facilities (the country is the world’s third-largest geothermal producer), and a rapidly expanding renewable energy sector including wind, solar, and run-of-river hydro. Slip-on flanges serve critical roles in cooling water systems, auxiliary steam lines, condensate return piping, and fuel gas supply systems across all these plant types. Werner Flanges has supplied flanges for power sector projects throughout Southeast Asia and is positioned to support the Philippines’ ambitious capacity expansion program under the Department of Energy’s power development plan.
Water & Wastewater Treatment	The National Water Resources Board and Metropolitan Waterworks and Sewerage System (MWSS) oversee an extensive network of water treatment and distribution infrastructure across the Philippines. Municipal water systems, sewage treatment plants, and industrial effluent handling facilities use slip-on flanges in large-diameter piping systems. Flat face carbon steel and stainless steel flanges are the standard choice for water and wastewater applications. Werner Flanges’ large-bore slip-on flange capability — up to 60″ diameter — supports major water transmission infrastructure projects.

Frequently Asked Questions (FAQs)

q1: do your slip-on flanges comply with asme b16.5 for use in philippine industrial projects?: yes. all werner flanges slip-on flanges are manufactured and dimensionally inspected to asme b16.5 standards. material certifications conform to applicable astm standards. we can also supply to din, bs, or other international standards upon request — please specify your requirement when enquiring.
q2: what is the typical delivery time for slip-on flanges to manila or cebu?: standard sea freight delivery to the port of manila is 18–22 days from our facility. cebu international port is typically 20–24 days. for urgent requirements, air freight to manila or cebu can reduce transit to 3–5 days. we maintain a ready stock of common sizes in a105 and a182 f304/316l for fast dispatch.
q3: can you supply slip-on flanges with third-party inspection for epc projects in the philippines?: absolutely. we regularly facilitate pre-shipment inspection by tüv, dnv gl, bureau veritas, lloyd’s register, sgs, and other approved bodies. please inform us of your third-party inspection requirement at the time of enquiry so we can schedule accordingly and avoid shipment delays.
q4: do you offer stainless steel slip-on flanges suitable for marine and coastal applications in the philippines?: yes. for philippine coastal and marine applications — including shipyards, offshore platforms, and port facilities — we recommend astm a182 f316/f316l (molybdenum-bearing grade for chloride resistance) or f51 duplex for more aggressive seawater environments. our team can advise on the most appropriate grade for your specific service conditions.
q5: can you manufacture non-standard or custom slip-on flanges for specialized philippine projects?: yes. werner flanges has in-house engineering capability to manufacture custom slip-on flanges with non-standard bore sizes, special thicknesses, unique facing configurations, or project-specific material requirements. please share your technical drawing or specification and we will confirm feasibility and lead time.
q6: are your material test certificates (mtcs) accepted by philippine regulatory bodies and epc contractors?: our mtcs are issued per en 10204 3.1 (or 3.2 for third-party witness inspection) and are accepted by internationally operating epc contractors, engineering consultants, and owner-operators working in the philippines. philippine projects governed by asme or international standards universally accept our documentation.
q7: do you stock slip-on flanges for fast delivery, or is everything made to order?: we maintain buffer stock of the most commonly ordered sizes and materials (1/2″ to 24″, class 150# and 300#, in astm a105 and a182 f304l / f316l) for faster dispatch. less common sizes, higher pressure classes, and special materials are manufactured to order. contact us with your requirement and we will confirm availability and lead time.