Nestled in the industrial heart of Hamilton, New Zealand, Neesham Flanges has built a strong reputation for precision engineering. We specialise in the manufacturing and supply of high-performance Copper Nickel Orifice Flanges, a critical component for industries demanding reliability. Our commitment is to provide robust, locally-made solutions that stand up to the toughest conditions, ensuring our clients receive not just a product, but a dependable piece of infrastructure backed by genuine Kiwi workmanship and expertise.
Our Copper Nickel Orifice Flanges are crafted from a specialised copper-nickel alloy, commonly the 90/10 or 70/30 grades. This composition offers a remarkable synergy of strength and corrosion resistance, particularly against seawater and various chemical environments. The material maintains excellent mechanical properties, including good tensile strength and ductility, even at elevated temperatures. This inherent toughness ensures the flanges provide a stable, leak-proof mounting for orifice plates under significant pressure and flow stress, guaranteeing long-term operational integrity.
Neesham Flanges, a premier supplier in Hamilton, New Zealand, specializes in high-quality Copper Nickel Orifice Flanges, valued for their exceptional durability, corrosion resistance, precise engineering, and suitability across diverse industrial applications.
| Product Name | Orifice Flanges |
|---|---|
| Size Range | 1/2″ (15 NB) to 48″ (1200NB) |
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standards / Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605 |
| Flange Face Types / Connection Type | Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G) |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings |
| Custom Design | As per your drawing | AS, BS, ANSI, DIN, JIS | Equal and Reducing Configurations |
| Material Test Certificates (MTC) | As per EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103 |
| Test Certificates | 100% Radiography Test Report, EN 10204/3.1B, Raw Materials Certificate, Third Party Inspection Report, etc |
| Tests | Hydrostatic testing machine, Direct-reading Spectrograph, UI trasonic flaw detector, X-ray detector, Magnetic particle detector |
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | Welding Neck Length | RF Dia. | RF Height | PCD | Orifice Hole dia | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | ||||||||
| 1 | 25 | 125 | 36.6 | 54 | 33.4 | 81 | 50.8 | 2 | 88.9 | 6.4 | 4 | 5/8 | 125 | 3/4 | M16 | 4.5 |
| 1 1/2 | 40 | 155 | 36.6 | 70 | 48.3 | 84 | 73 | 2 | 114.3 | 6.4 | 4 | 3/4 | 135 | 7/8 | M20 | 6.5 |
| 2 | 50 | 165 | 36.6 | 84 | 60.3 | 84 | 92.1 | 2 | 127 | 6.4 | 8 | 5/8 | 125 | 3/4 | M16 | 7 |
| 2 1/2 | 65 | 190 | 36.6 | 100 | 73 | 87 | 104.8 | 2 | 149.2 | 6.4 | 8 | 3/4 | 135 | 7/8 | M20 | 7.5 |
| 3 | 80 | 210 | 36.6 | 117 | 88.9 | 87 | 127 | 2 | 168.3 | 9.5 | 8 | 3/4 | 135 | 7/8 | M20 | 9.4 |
| 4 | 100 | 255 | 36.6 | 146 | 114.3 | 90 | 157.2 | 2 | 200 | 12.7 | 8 | 3/4 | 135 | 7/8 | M20 | 13.2 |
| 6 | 150 | 320 | 36.6 | 206 | 168.3 | 98 | 215.9 | 2 | 269.9 | 12.7 | 12 | 3/4 | 135 | 7/8 | M20 | 14.6 |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 269.9 | 2 | 330.2 | 12.7 | 12 | 7/8 | 145 | 1 | M24 | 30 |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.3 | 12.7 | 16 | 1 | 165 | 1 1/8 | M27 | 41 |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 12.7 | 16 | 1 1/8 | 180 | 1 1/4 | M30 | 62 |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 412.8 | 2 | 514.4 | 12.7 | 20 | 1 1/8 | 185 | 1 1/4 | M30 | 84 |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 469.9 | 2 | 571.5 | 12.7 | 20 | 1 1/4 | 195 | 1 3/8 | M33 | 111 |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 12.7 | 24 | 1 1/4 | 205 | 1 3/8 | M33 | 138 |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 12.7 | 24 | 1 1/4 | 215 | 1 3/8 | M33 | 171 |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 12.7 | 24 | 1 1/2 | 240 | 1 5/8 | M39 | 247 |
Copper-nickel orifice flanges find extensive applications in industries demanding accurate flow measurement and corrosion resistance. They are also found in marine environments, desalination facilities, and offshore oil and gas platforms because they exhibit high seawater and biofouling resistance. They facilitate differential pressure measurement helping in precise fluid flow control. Their ruggedness and compatibility with hostile environments enable them to find applications in chemical processing and power generation systems. Copper-nickel alloys are also resistant to thermal expansion providing consistent performance in varying temperatures and pressures.
Yes, we offer custom sizes for Copper Nickel Orifice Flanges to meet specific project needs. Our team at Neesham Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@neeshamflanges.com.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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