Home / Products / Forged Fittings Type Thread Fittings / ASME B16.11 / BS3799 Threaded Reducing Coupling

A coupling is a piece of pipe applies to connect two different male threaded fittings (nipple or pipe). Usually the coupling is thoroughly threaded or has a barrel (in-threaded) section in center of the coupling (known as barrel coupling). When coupling has uneven / unequal threads to connect two different pipe or nipple with different male threads, it is known as reducing coupling. The size of the reducing coupling is denoted by the major thread by minor thread.

ASME B16.11 / BS3799 Threaded Reducing Coupling

Size	Class	Range	Dimension	Specification
1/4" to 4"	2000, 3000, 6000, 9000	Elbow, Tee, Nipple, Coupling, Plug, Socket, Bushing, Union, Weldolet, Sockolet, Threadolet	ANSI B 16.11	ASTM A 182

Nickel Alloy Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME SB 336 UNS 2200 (NICKEL 200) , UNS 2201 (NICKEL 201 ) , UNS 4400 (MONEL 400 ) , UNS 8020 ( ALLOY 20 / 20 CB 3 ) , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 (INCONEL 601) , UNS 6625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276)

Copper Alloy Steel Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME SB 111 UNS NO.C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 , C 71500
ASTM / ASME SB 466 UNS NO.C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)

Stainless Steel Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME SA 403 GR WP "S" / "W" / " WX" 304 , 304L, 304H, 304N, 304LN, 309, 310H, 316, 316H, 317, 317L, 321, 321H, 347, 347 H

Duplex Steel Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME SA 815 UNS NO.S 31803, S 32205, S 32550, S 32750, S 32760

Carbon Steel Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME A 234 WPB, WPC
ASTM / ASME A 860 WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70

Alloy Steel Thread Reducing Couplings / Half Couplings / Full Couplings

ASTM / ASME A 234 WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 23, WP 91

Types : Forged Elbow, Forged Tee, Forged Reducer, Forged Return Bends, Forged Stub-Ends, Forged Cap, Forged Collar, Forged Cross, Forged Insert etc.
Thread Reducing Couplings Size : 1/2” NB TO 24” NB.

Dimensions

ASME B16.11-2009 (Revision of ASME B16.11-2005)

Main Export Market

• Eastern Europe
• North America
• Mid East/Africa
• Central/South America
• Asia
• Western Europe
• Australasia
• UAE

Sales Locations

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