Grant Fittings, based in Manila, Philippines, is a trusted manufacturer and supplier of high-quality industrial fittings, including collars. Our Collars are precision-engineered for durability, ensuring secure connections in various applications. Designed to meet the demands of industries such as construction, oil & gas, and plumbing, our collars provide reliable performance, reducing the risk of leaks and ensuring structural integrity. With a commitment to excellence, Grant Fittings offers tailored solutions for every project, ensuring optimal functionality and long-lasting reliability.
Standard – ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43.
DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN : EN10253-1, EN10253-2
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated
Size: 1/2″ (15 NB) to 48″ (1200NB)
Form: Pipe Collar, Butt weld Collar, Fitting Collar
Collars are typically made from high-strength materials like stainless steel, carbon steel, or alloy steel, ensuring durability and resistance to corrosion. The composition may include elements like chromium, nickel, and molybdenum for added strength and resistance to harsh environments. Mechanically, collars possess high tensile strength, excellent load-bearing capacity, and are resistant to wear and tear. They maintain structural integrity under pressure and provide secure, long-lasting connections. These properties make collars suitable for high-pressure systems, piping, and industrial applications where reliability and strength are critical.
Grant Fittings stands out as a dependable manufacturer and supplier of top-notch collars right in the heart of Manila, Philippines. These collars play a crucial role in various piping systems, ensuring secure connections between flanges and pipes. At Grant Fittings, you’ll find a diverse selection of collars, including weld-on and slip-on types, all made from materials like stainless steel, carbon steel, alloy steel, and specialty alloys. Adhering to international standards such as ASME B16.9 and DIN norms, these products are trusted across industries like oil and gas, petrochemical, power generation, and water treatment throughout the Philippines.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choose Collar from Grant Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
The collars crafted by Grant Fittings are engineered with precision to deliver strength, durability, and resistance to corrosion. Depending on the material grade—whether it’s stainless steel 304/316, carbon steel A105, or duplex steel—these collars boast impressive mechanical properties and are compatible with both standard and high-pressure systems. Their precise dimensions and smooth finishes guarantee tight, leak-proof connections when paired with flanges and pipes. Each collar goes through rigorous quality checks to ensure it meets project specifications and international performance standards.
You’ll find Grant Fittings’ collars widely used in pipeline systems for chemical plants, refineries, marine systems, and industrial fluid handling. They offer a reliable solution for reinforcing pipe ends and maintaining structural integrity in flange-to-pipe connections. These collars are especially beneficial in high-pressure and corrosive settings where mechanical strength and sealing reliability are paramount. With a vast inventory, customization options, and quick delivery, Grant Fittings has earned its reputation as a trusted supplier for contractors and engineers alike.
Stainless Steel Pipe Collar : ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Pipe Collar : ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Alloy Steel Pipe Collar : ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
Duplex Steel Pipe Collar : ASTM A815, ASME SA815 UNS No S31803, S32205
Super Duplex Pipe Collar : ASTM A815, ASME SA815 UNS No S32750, S32950
Nickel Alloy Pipe Collar : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.
Low Temperature Carbon Steel Pipe Collar : ASTM A420 WPL3, A420 WPL6
| Nominal Pipe Size | Outside diameter at bevel | Length(E) | Limitwall thickness |
| 1/2″ | 21.3 | 25 | 4.57 |
| 3/4″ | 26.7 | 25 | 3.81 |
| 1″ | 33.4 | 38 | 4.57 |
| 1 1/4″ | 42.2 | 38 | 4.83 |
| 1 1/2″ | 48.3 | 38 | 5.08 |
| 2″ | 60.3 | 38 | 5.59 |
| 2 1/2″ | 73.0 | 38 | 7.11 |
| 3″ | 88.9 | 51 | 7.62 |
| 3 1/2″ | 101.6 | 64 | 8.13 |
| 4″ | 114.3 | 64 | 8.64 |
| 5″ | 141.3 | 76 | 9.65 |
| 6″ | 168.3 | 89 | 10.92 |
| 8″ | 219.1 | 102 | 12.70 |
| 10″ | 273.0 | 127 | 12.70 |
| 12″ | 323.8 | 152 | 12.70 |
| 14″ | 355.6 | 165 | 12.70 |
| 16″ | 406.4 | 178 | 12.70 |
| 18″ | 457.0 | 203 | 12.70 |
| 20″ | 508.0 | 229 | 12.70 |
| 22″ | 559.0 | 254 | 12.70 |
| 24″ | 610.0 | 267 | 12.70 |
Collars are widely used in industries such as construction, oil and gas, petrochemical, and manufacturing. They are commonly employed to provide secure connections between pipes, flanges, and valves, preventing leaks and ensuring system integrity. Collars are also used to align and stabilize pipes in piping systems, making them essential in high-pressure and high-temperature applications. Their strength and durability make them ideal for heavy-duty operations. Additionally, collars are used in mechanical assemblies, structural support, and machinery, providing reliable fastening solutions for a wide range of industrial applications.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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