What are branch connections (or pipe branch outlet fittings aka “Olets”)? Olet fittings are a family of forged products used to make 45 or 90 degrees integrally reinforced branch connections (deviations) from a run pipe (also called, header pipe) to a branch pipe (outlet pipe). The common types of branch fittings are Weldolet, Thredolet, Sockolet, Latrolet, Elbolet, Nipolet, Sweepolet. MSS-SP 97 is the key specification covering reinforced branch connections, introduced by Bonney Forge in the piping market more than 70 years ago.
Pipe branch fittings are used to create integrally reinforced connections from a run pipe (header pipe) to an outlet pipe, at 45 or 90 degrees, alternative to connections made with butt weld tees, reinforcing pads and saddles. This type of forged fittings is otherwise called “branch connections”, or “branch fittings”, or “pipe branch outlet fittings” or, simply, “Olets”.
Grades :
304, 304L, 304H, 308, 309, 309S, 310S, 310H, 312, 314, 316, 316L 316H, 316Ti, 317L, 321, 347, 347H,904L
Standard :
ASTM A182 & ASME SA182
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grades :
LF1, LF2, LF3
Standard :
ASTM / ASME A 105, ASTM / ASME A 350 LF 2.
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grades :
F5, F9, F11, F22, F91
Standard :
ASTM A182 & ASME SA182
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grades :
S31803 / S32205 (2205) / S32750 (2507) / S32760
Standard :
ASTM A182 & ASME SA182
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grades :
Nickel Alloy 200, 201 / Monel 400, K500 / Inconel 600, 601, 625, 718 / Incoloy 800/800H/800HT, 825, 925 / Hastelloy C22, C-2000 C276, B2, B3
Standard :
ASTM B366 & ASME SB366
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grade
Alloy A286 UNS S66286
Standard :
ASTM A182 & ASME SA182
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grade
SMO 254 | UNS S31254
Standard :
ASTM B366 & ASME SB366
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged
Grade
Alloy 20 UNS N08024
Standard :
ASTM B366 & ASME SB366
Dimensions :
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc
Size :
1/8"-4" (DN6-DN100)
Connect Type :
Welded, threaded, BW, SW
Process :
Free forging, plate cutting .forged