Butt weld fittings of high quality are manufactured by Grand Metal Corporation. Butt weld fittings have special quality finishing and duress for long life, high pressure and zero defects.

Butt weld fittings are offered in various shapes such as tees, elbows, reducers, stub-ends, caps, collars, inserts etc.

Butt weld Fittings are subject to high pressure for critical applications and can be manufactured in various grades of Stainless Steel & Alloy Steel. Stainless Steel grades include 304 , 316 , 304L , 316L, 317 etc. Alloy Steel include Monel, Inconel, Hastelloy, Duplex Steel, Super Duplex Steel , 254 SMO. Butt weld fittings can also be made in Carbon Steel and Special Grade Steel.

ASTM / ASME SB 336
UNS10276 – HASTELLOY C276
UNS2200 – NICKEL 200
UNS2201 – NICKEL 201
UNS4400 – MONEL 400
UNS8020 – ALLOY 20
UNS8825 – INCONEL 825
UNS6600 – INCONEL 600
UNS6601 – INCONEL 601
UNS6625 – INCONEL 625
UNS5500 – MONEL K500
UNS8800 – INCONEL 800
UNS8810 – INCONEL 800H

Details of O'let Branch Connections
Branch Connection fittings (also known as O'lets) are fittings which provide an outlet from a larger pipe to a smaller one (or one of the same size). The main pipe onto which the branch connection is welded is usually called the Run or Header size. The pipe to which the branch connection provides a channel is usually called the Branch or Outlet size. Branch connections are in all sizes, types, bores, and classes, in a wide range of stainless steel, chrome-moly, and other alloys.

Perhaps you know, Bonney Forge has been supplying quality branch fittings (O'lets) for many years. In 1943 when Bonney Forge pioneered the "Shape of Reinforcement" for branch connections, who would have thought it would fast become a recognized industry standard. Today, we B offer complete run pipe reinforcement while avoiding cracks, fillet welds, and sharp re-entrant corner reinforcement tapering at the sides, thus preventing abrupt changes in thickness where the fitting joins the header pipe.

Bonney Forge fittings meeting the 100% reinforcement requirement of applicable piping codes i.e. ASME B31.1, B31.3, B31.4 and B31.8. They also meet the 2001 edition of MSS-SP-97 Standard- "Integrally Reinforced Forged Branch Outlet Fittings".