Haihao Group Supplies WN Flanges and Custom Orifice Plates to Singapore
Haihao Group has successfully supplied a batch of WN flanges and custom orifice plates to a valued client in Singapore. This order highlights our expertise as a trusted WN flange supplier and custom forged fittings manufacturer, delivering reliable solutions for high-pressure piping systems.

SA182 F11 Class 2 ASME B16.5 forged weld neck flange ready for shipment
Details of Supplied Products
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WN Flange RF, 3/4″ XXS, 2500#, SA182 F11 CL2, ASME B16.5
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WN Flange RF, 3/4″ SCH160, 2500#, SA182 F11 CL2, ASME B16.5
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Custom Orifice Plate, ASTM A387 Gr22, Dia 70mm x Thk 25mm, with Handle (designed per drawing, 4mm bore, KKS number stamped on handle)
The ASME B16.5 weld neck flanges are manufactured from SA182 F11 Class 2 forged alloy steel, providing superior strength, corrosion resistance, and reliable sealing under 2500# pressure rating. The ASTM A387 Gr22 custom orifice plate was designed according to client specifications, ensuring precise flow control and compliance with project requirements.

Custom ASTM A387 Gr22 orifice plate with handle and precision bore
Precision Engineering & Quality Assurance
Haihao Group follows rigorous quality inspection standards. Each flange and orifice plate undergoes dimensional checks, material testing, and pressure verification to guarantee long-term performance. With our advanced forging and machining capabilities, we meet the strict demands of oil & gas, petrochemical, and power plant applications.
Customized Solutions for Global Clients
In addition to standard ASME B16.5 forged flanges, Haihao Group provides customized orifice plates and engineered piping components. As a leading high-pressure forged fittings supplier, we deliver products tailored to specific designs and operating conditions, ensuring both safety and efficiency.
Packaging & Delivery
To protect the integrity of the products during international shipping, all items were securely packed. This guarantees safe delivery and readiness for immediate installation at the project site.