ANSI B16.5 Flanges Supplier & Exporter to Kenya

Leading Manufacturer of Precision ANSI B16.5 Flanges for Kenya’s Oil & Gas and Infrastructure Sector

Werner Flanges is a globally recognized manufacturer and exporter of ANSI B16.5 flanges, proudly serving Kenya's rapidly expanding industrial landscape for over two decades. From the sprawling oil terminals of Mombasa to the industrial parks of Nairobi and the power infrastructure projects of Kisumu, Werner Flanges delivers certified, precision-forged flange solutions that meet the most demanding international quality standards.

As Kenya accelerates its industrialization under the Big Four Agenda and Vision 2030, the demand for reliable, high-performance pipeline components has never been greater. Werner Flanges supports this growth by supplying a comprehensive range of ANSI B16.5 flanges in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, and Nickel Alloys — all manufactured to ASME, ASTM, API, DIN, and BS standards.

Our flange supply capabilities cover Kenya’s major industrial cities including Nairobi, Mombasa, Kisumu, Eldoret, and Nakuru, as well as key industrial zones such as the Mombasa Special Economic Zone and the Naivasha Industrial Park. With a direct-from-manufacturer supply model, Werner Flanges offers competitive pricing, rapid dispatch, and full traceability on every order.

Each flange undergoes rigorous quality control, including dimensional inspection, mechanical testing, PMI verification, and non-destructive examination, ensuring long-term reliability and compliance with international standards. Supported by expert technical consultation and efficient logistics, Werner Flanges enables EPC contractors, distributors, and industrial operators across Kenya to maintain operational efficiency and project success.

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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

ANSI B16.5 Weld Neck Flanges	ANSI B16.5 Slip On Flanges	ANSI B16.5 Blind Flanges	ANSI B16.5 Socket Weld Flanges	ANSI B16.5 Threaded Flanges
ANSI B16.5 Lap Joint Flanges	ANSI B16.5 Spectacle Blind Flanges	ANSI B16.5 Long Weld Neck Flanges	ANSI B16.5 Orifice Flanges	ANSI B16.5 Ring Type Joint Flanges

Industries and Applications We Supply

Industry	Applications
Oil & Gas Industry	Kenya’s oil and gas sector is undergoing a transformational phase with the development of the Turkana oil fields discovered by Tullow Oil, the proposed East African Crude Oil Pipeline (EACOP), and the LAPSSET Corridor connecting Lamu Port to South Sudan and Ethiopia. The Kenya Pipeline Company (KPC) operates the critical Mombasa-Nairobi-Eldoret pipeline system — a 450km+ network requiring ANSI B16.5 flanges rated for petroleum product service across diverse pressure classes.Werner Flanges supplies Weld Neck and Blind Flanges in Class 600# and 900# Carbon Steel and Alloy Steel for these demanding upstream and midstream applications, with full API and NACE compliance documentation
Petrochemical & Chemical Processing	The Kenya Petroleum Refineries Limited (KPRL) at Changamwe, Mombasa, represents Kenya’s downstream processing hub. Though currently operating in storage and distribution mode, ongoing revamp discussions point to sustained demand for high-specification flanges in refinery piping, storage tank farms, and product loading systems. Werner Flanges provides ASTM A182 Stainless Steel and Alloy Steel flanges to meet refinery-grade specifications.
Power Generation	Kenya is a regional leader in renewable energy, with geothermal capacity at Olkaria (KenGen) exceeding 800 MW and growing. Geothermal plants require flanges capable of handling superheated steam at high pressures and temperatures — a core competency of Werner Flanges’ Alloy Steel product range. Kenya’s expanding gas and HFO peaking power plants (such as those managed by KenGen and independent power producers) also utilize ANSI B16.5 flanges in boiler feed water, cooling, and fuel gas systems.
Water & Wastewater Treatment	Kenya’s National Water Harvesting and Storage Authority and the Nairobi City Water and Sewerage Company oversee an extensive water infrastructure network. Major projects including the Thwake Multi-Purpose Dam and the Northern Water Collector Tunnel require large-diameter, low-to-medium pressure flanges in Carbon Steel and Ductile Iron. Werner Flanges supplies ANSI B16.5 Slip On and Weld Neck Flanges for water transmission mains, pump stations, and treatment plant piping.

Frequently Asked Questions (FAQs)

q1: what is the difference between ansi b16.5 and asme b16.5?: ansi b16.5 and asme b16.5 refer to the same standard. ansi (american national standards institute) previously administered the standard, but it is now maintained by asme (american society of mechanical engineers). the two terms are used interchangeably in the industry, and werner flanges’ products comply fully with the current asme b16.5 edition.
q2: how do i select the correct pressure class for my kenyan project?: pressure class selection depends on the design pressure, operating temperature, and material group of the flange. for example, a class 150# astm a105 carbon steel flange at 100°f is rated for 285 psi. werner flanges’ application engineers can review your p&id and line list to recommend the correct pressure class and material combination. contact us with your process conditions for a free technical consultation.
q3: what delivery times should i expect for ansi b16.5 flanges to nairobi or mombasa?: for standard grades and sizes in stock, sea freight transit to mombasa port is 18–22 days from our manufacturing facility. delivery to nairobi is an additional 1–2 days by road or standard gauge railway (sgr). air freight is available for urgent requirements, with a transit of 5–7 days. contact us to confirm stock availability for your specific requirements.
q4: can werner flanges supply flanges compliant with nace mr0175 for sour service in kenya’s oil fields?: yes. werner flanges supplies nace mr0175 / iso 15156 compliant flanges for hydrogen sulfide (h2s) sour service applications, such as those encountered in kenya’s turkana basin oil fields. compliant materials include astm a182 f316l, f22, f91, and certain duplex and super duplex grades, all with hardness restrictions and nace compliance certificates.
q5: are third-party inspections available for orders to kenya?: yes. werner flanges facilitates third-party inspection by tüv rheinland, dnv gl, bureau veritas, lloyd’s register, and sgs at our manufacturing facility prior to dispatch. inspection release notes and all quality documents are provided digitally and in hard copy with each shipment.
q6: can werner flanges supply non-standard or custom-size flanges for specialty projects in kenya?: yes. werner flanges has in-house custom manufacturing capabilities for non-standard bore sizes, proprietary facing dimensions, special coatings (fbe, ptfe lining), and flanges exceeding the 24″ nps limit of asme b16.5 (per asme b16.47). lead times for custom orders are typically 4–8 weeks depending on material and complexity.