Petrochemical Industries
Omaa Metal Sources is ASME B16.5 Galvanized Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.
Galvanized Flange Manufacturers and Suppliers in India, ANSI B16.5 Galvanized Flange, ASME B16.47 Galvanized Flange Dimensions, MSS SP-44 Galvanized Flanges, Low-Pressure Galvanized Steel Flange Supplier
Galvanized flanges, also known as GI (Galvanized Iron) flanges, are a type of flange made from galvanized steel. Galvanization is the process of coating steel with a layer of zinc to protect it from corrosion.
GI flanges are commonly used in plumbing, water supply systems, and other applications where rust and corrosion resistance are essential. They are also used in industrial settings where they may be exposed to harsh environments or chemicals.
GI flanges come in various sizes and pressure ratings and are available in different types, such as slip-on flanges, weld neck flanges, threaded flanges, and blind flanges. They are typically used to connect two pipes or to connect a pipe to a valve, pump, or other equipment.
It’s worth noting that the term “galvanized iron” is a misnomer, as modern “galvanized” steel typically contains little or no iron. However, the term has persisted as a way to describe steel that has been coated with zinc.
ASTM A105 Galvanized Flange, Carbon Steel Galvanized Flange, Galvanized Flange, Inconel 600 Galvanized Flange, MSS SP-44 Galvanized Flange, Titanium Galvanized Flanges, EN 1092-2 PN16 Galvanized Flange Exporter, Galvanized Flanges NPS, Sch 80 Schedule 40 Stainless Steel 304, 304L, 316, 316L, and 904L Galvanized Flange, Series A & B Galvanized Flange, DIN 86029 PN10 Galvanized Flange, Galvanized Forged Flange, MS Galvanized Flange at the Lowest Prices.
Galvanized Flange Specifications
Size Range
1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure Rating
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Standards / Dimensions
ANSI/ASME B16.5, B16.47 Series A & B, B16.48, JIS B2220, BS 4504, BS 10, BS1560-3.1, EN-1092, DIN, AS, GOST, MSS SP-44, ISO 70051, API7S-15, API7S-43, API605, AWWA, DIN
Connection Type
Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)
Material Standards
ASTM A105, ASTM A350, ASTM A182, ASTM A216, ASTM A352, ASTM A217, ASTM A515, ASTM A516, ASTM A203, A204, ASTM A387, ASTM A240, ASTM A694 Galvanized Steel Flange
Galvanized Steel Flange Materials & Grades
| ASTM A182 Galvanized Flange |
|---|
| Stainless Steel 304, 304L, 316, 316L, 316H, 316Ti, 310, 310S, 317, 317L, 321, 347, 347H, 904L, SMO 254/6Mo, Duplex Steel-S31803/S32205, Super Duplex-S32750/S32760 F51, F52, F53, F54, F55, F57, F59, F60, F61, Alloy Steel F1, F5, F9, F11, F12, F22, F91 |
| ASTM B564 Galvanized Flange |
|---|
| Incoloy 800, 800H, 800HT, 825, 925, Inconel 600, 601, 625, 718, 783, 690, X750, Nickel 200, 201, 205, 205LC, Hastelloy C276, C22, C4, C2000, B2, B3, X, Monel 400, 500 |
| ASTM A105 / A105N / A350 LF2 / A694 Galvanized Flange |
|---|
| Carbon Steel F52, F56, F60, F65, F70, F80 |
| ASTM B247 Galvanized Flange |
|---|
| Aluminium 7075, 5086, 6082, 3003, 5083, 6061, 1100 |
| ASTM B61 / B62 / B151 / B152 Galvanized Flange |
|---|
| Copper Nickel 90/10 (C70600 ), 70/30 (C71500), UNS C71640 |
| ASTM B381 Galvanized Flange |
|---|
| Titanium Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 12 |
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ANSI/ASME B16.5 Low Pressure Galvanized Flange Dimensions
ANSI/ASME/ASA B16.48 Galvanized Flanges Dimensions| Bolt Hole | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | ||
NPT | |||||||||
| 1/2 | 3 1/2″ | 1/2″ | 5/8″ | 4 | 2 3/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 3/4 | 3 7/8″ | 1/2″ | 5/8″ | 4 | 2 3/4″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 1 | 4 1/4″ | 1/2″ | 5/8″ | 4 | 3 1/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 1 1/4 | 4 5/8″ | 1/2″ | 5/8″ | 4 | 3 1/2″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 1 1/2 | 5″ | 1/2″ | 5/8″ | 4 | 3 7/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 2 | 6″ | 5/8″ | 3/4″ | 4 | 4 3/4″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 2 1/2 | 7″ | 5/8″ | 3/4″ | 4 | 5 1/2″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 3 | 7 1/2″ | 5/8″ | 3/4″ | 4 | 6″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 4 | 9″ | 5/8″ | 3/4″ | 8 | 7 1/2″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 5 | 10″ | 3/4″ | 7/8″ | 8 | 8 1/2″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 6 | 11″ | 3/4″ | 7/8″ | 8 | 9 1/2″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 8 | 13 1/2″ | 3/4″ | 7/8″ | 8 | 11 3/4″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
BSPT | |||||||||
| 1/2 | 3 1/2″ | 5/8″ | 0.62″ | 4 | 2 3/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 3/4 | 3 7/8″ | 5/8″ | 0.62″ | 4 | 2 3/4″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 1 | 4 1/4″ | 5/8″ | 0.62″ | 4 | 3 1/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 1 1/2 | 5″ | 5/8″ | 0.62″ | 4 | 3 7/8″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
| 2 | 6″ | 3/4″ | 3/4″ | 4 | 4 3/4″ | 285 psi @ 72° F | 150 psi @ 300° F | ||
ASME B16.47 Medium Pressure Galvanized Flange Dimensions
| Bolt Hole | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | ||
NPT | ||||||||
| 1/2 | 3 3/4″ | 5/8″ | 0.62″ | 4 | 2 5/8″ | 600 psi @ 72° F | ||
| 3/4 | 4 5/8″ | 3/4″ | 3/4″ | 4 | 3 1/4″ | 600 psi @ 72° F | ||
| 1 | 4 7/8″ | 3/4″ | 3/4″ | 4 | 3 1/2″ | 600 psi @ 72° F | ||
| 1 1/4 | 5 1/4″ | 3/4″ | 3/4″ | 4 | 3 7/8″ | 600 psi @ 72° F | ||
| 1 1/2 | 6 1/8″ | 7/8″ | 0.88″ | 4 | 4 1/2″ | 600 psi @ 72° F | ||
| 2 | 6 1/2″ | 3/4″ | 3/4″ | 8 | 5″ | 600 psi @ 72° F | ||
| 3 | 8 1/4″ | 7/8″ | 0.88″ | 8 | 6 5/8″ | 600 psi @ 72° F | ||
| 4 | 10″ | 7/8″ | 0.88″ | 8 | 7 7/8″ | 600 psi @ 72° F | ||
ANSI/ASME B16.5 Galvanized Floor Flange Dimensions
| Size | 1/4 | 3/8 | 1/2 | 3/4 | 1 |
|---|---|---|---|---|---|
| A | 2.36 | 2.68 | 2.99 | 3.25 | 3.80 |
| B | 0.34 | 0.47 | 0.49 | 0.55 | 0.75 |
| C | 1.58 | 1.81 | 2.06 | 2.29 | 2.99 |
| Size | 1-1/4 | 1-1/2 | 2 | ||
| A | 4.00 | 4.44 | 5.09 | ||
| B | 0.75 | 0.93 | 1.00 | ||
| C | 3.02 | 3.31 | 3.94 | ||
ANSI/ASME B16.47 Galvanized Steel Flange Weight Chart
| Normal Pipe Size | Dimensions | Weight (Kilogram) | ||||
|---|---|---|---|---|---|---|
| Normal Pipe Size (Inch) | DN (mm) | Flanges In Millimeter | Flanges In Wall Thickness | Slip On | Weld Neck | Blind |
| 1/2 | 15 | 88.9 | 11.2 | 0.4 | 0.5 | 0.4 |
| 3/4 | 20 | 98.6 | 12.7 | 0.6 | 0.7 | 0.6 |
| 1 | 25 | 108 | 14.2 | 0.8 | 1 | 0.9 |
| 1 1/4 | 32 | 117.3 | 15.7 | 1 | 1.3 | 1.2 |
| 1 1/2 | 40 | 127 | 17.5 | 1.3 | 1.7 | 1.5 |
| 2 | 50 | 152.4 | 19.1 | 2.1 | 2.6 | 2.4 |
| 2 1/2 | 65 | 177.8 | 22.4 | 3.3 | 4.1 | 3.9 |
| 3 | 80 | 190.5 | 23.9 | 3.9 | 4.9 | 4.9 |
| 3 1/2 | 90 | 215.9 | 23.9 | 4.8 | 6.1 | 6.2 |
| 4 | 100 | 228.6 | 23.9 | 5.3 | 6.8 | 7.0 |
| 5 | 125 | 254 | 23.9 | 6.1 | 8.6 | 8.6 |
| 6 | 150 | 279.4 | 25.4 | 7.5 | 10.6 | 11.3 |
| 8 | 200 | 342.9 | 28.4 | 12.1 | 17.6 | 19.6 |
| 10 | 250 | 406.4 | 30.2 | 16.5 | 24 | 28.6 |
| 12 | 300 | 482.6 | 31.8 | 26.2 | 36.5 | 43.2 |
| 14 | 350 | 533.4 | 35.1 | 34.6 | 48.4 | 58.1 |
| 16 | 400 | 596.9 | 36.6 | 44.8 | 60.6 | 76.1 |
| 18 | 450 | 635 | 39.6 | 48.9 | 68.3 | 93.7 |
| 20 | 500 | 698.5 | 42.9 | 61.9 | 84.5 | 122.0 |
| 24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
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Galvanizing Flanges Applications
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Petrochemical Industries
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Pharmaceutical Equipment
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Power Generation
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Heating Systems and Heat Exchanger
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Pulp and Paper Industry
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Mining Support
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Chemical Equipment
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Gas Processing
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Plumbing
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Nuclear Power Systems
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Condensers
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Sea Water Equipment
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Buildings and Bridges
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Industrial Water Lines
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Food Processing Industry
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Fire Protection Systems
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Off-Shore Oil Drilling Companies
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Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
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Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
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Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
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