Name: Threaded Flange
Brand: Shengtian Group
Availability: InStock
Rating: 5 (1 reviews)

Description

Threaded Flange Supplier,Threaded Flange Manufacturer In China

　　A threaded flange is a mechanical component that achieves non-welding connection with a threaded pipe through a pipe thread processed through an inner hole. It is a detachable connection method. Its core advantage is that it is easy to install and maintain. It is especially suitable for alloy steel pipeline systems where welding is prohibited and special material connection scenarios with poor welding performance. It can effectively avoid additional stress caused by welding deformation. This type of flange has a risk of leakage in conditions where the temperature changes drastically (below -45°C or above 260°C) and should be used with caution. As a high-pressure pipeline connection solution, threaded flanges are mainly used in special material pipeline systems in the chemical, petroleum and other fields. The sealing surface types include raised faces and flat faces.

ANSI B16.5 Forged Treaded Flanges Tolerance

THREAD,SOCKET-WELDING,SLIP-ON,LAP JOINT AND BLIND FlANGE			WELDING NECK
THREAD,SOCKET-WELDING,SLIP-ON,LAP JOINT AND BLIND FlANGE			WELDING NECK
Outside Diameter	When O.D.is 24"or less	±1/16"(1.6mm)	Outside Diameter	When O.D.is 24"or less	±1/16"(1.6mm)*
Outside Diameter	When O.D.is Over 24"	±1/8"(3.2mm)*	Outside Diameter	When O.D.is Over 24"	±18"(3.2mm)
Inside Diameter	Threaded	Within limits on boring gauge	Inside Diameter	10"and Smaller	±1/32"(0.8mm)
	Threaded	Within limits on boring gauge		20"thru 18"	±1/16"(1.6mm)
	Socket-Welding Slip-on and Lap joint	10"&Smaller +1/32"(0.8mm).0" 12"&Larger +1/16"(1.6mm).O"		20"and Larger	+1/8"(3.2mm) -1/16"(1.6mm)
Outside Diameter of Hub	5"and Smaller	+3/32"(2.4mm) -1/32"(0.8mm)	Diameter of Hub at Base	When Hub Base is 24"or Smaller	±1/16"(1.6mm)*
Outside Diameter of Hub	6"and Larger	+5/32"(4.0mm) -1/32"(0.8mm)	Diameter of Hub at Base	When Hub Base is Over 24"	±1/8"(3.2mm)*
Diameter of Contact Face	1/16"Raised Face	±1/32"(0.8mm)	Diameter of Contact Face	116"Raised Face	±1/32"(0.8mm)
Diameter of Contact Face	1/4"Raised Face Tongue & Groove Male,Female	±1/64"(0.4mm)	Diameter of Contact Face	14"Raised Face Tongue &Groove Male,Female	±1/64"(0.4mm)
Diameter of Counterbore	Same as for Inside Diameter		Diameter of Hub at Point of Welding	5"and Smaller	+3/32"(2.4mm)* -1/32"(0.8mm)
Diameter of Counterbore	Same as for Inside Diameter		Diameter of Hub at Point of Welding	6"and Larger	+5/32"(4.0mm) -1/32"(0.8mm)
Drilling	Bolt Circle	±1/16"(1.6mm)	Drilling	Bolt Circle	±1/16"(1.6mm)
	Bolt Hole Spacing	±1/32"(0.8mm)		Bolt Hole Spacing	±1/32"(0.8mm)
	Eccentricity of Bolt Circle with Respect to Facing	21/2"Smaller 1/32"(0.8mm)Max. 3"&Larger 1/16"(1.6mm)Max		Eccentricity of Bolt Circle with Respect to Facing	21/2"Smaller 1/32"(0.8mm)Max. 3"&Larger 1/16"(1.6mm)Max.
	Eccentricity of Bolt Circle with Respect to Bore	1/32"(0.8mm)Max.*		Eccentricity of Bolt Circle with Respect to Bore	1/32"(0.8mm)Max.*
	Eccentricity of Facing with Respect to Bore	1/32"(0.8mm)Max.*		Eccentricity of Facing with Respect to Bore	1/32"(0.8mm)Max.*
Thickness	18"and Smaller	+1/8"(3.2mm).0^	Thickness	18"and Smaller	+1/8"(3.2mm),0"
Thickness	20"and Larger	+3/16"(4.8mm).04	Thickness	20"and Larger	+3/16"(4.8mm).O
Length Thru Hub	10"and Smaller	±1/16"(1.6mm)	Length Thru Hub	10"and Smaller	±1/16"(1.6mm)
Length Thru Hub	12"and Larger	±1/8"(3.2mm)	Length Thru Hub	12"and Larger	±1/8"(3.2mm)

Product Description

Flange Standard	Flange Size	Flange Pressure	Flange Type
ANSI B16.5	1/2'-24'	Class150 Class300	Blind Plate Slip onWelding Neck
ASME B16.5		Class600 Class900	Socket weling Threaded RTJ(tring type joint )
ASA B16.5		Class1500 Class2500	Facing: FF (flat face) RF (raised face)
ANSI B16.47 (A)	1/2'-60'	Class150,300	Slip on Welding neck RTJ(ring type joint)
		Class400,600,900	Facing: FF (flat face) RF (raised face)
ANSI B16.5 (B)	26'-60'	Class75,150,300	Slip on Welding neck RTJ(ring type joint)
			Facing: FF (flat face) RF (raised face)
ANSI B16.36	1"-24"	Class300,400,600	Slip on Welding neck Threaded RTJ
		Class900,1500,2500	Facing: FF (flat face) RF (raised face)
EN1092-1 Type01	DN10-DN2000	pn6 pn10 pn16 pn25 pn40	Plate flange
EN1092-1 Type05	DN10-DN3000	pn6 pn10 pn16 pn25 pn40	Blind flange
EN1092-1 Type11	DN15-DN3000	pn6 pn10 pn16 pn25 pn40	Welding neck flange
EN1092-1 Type13	DN10-DN150	pn6 pn10 pn16 pn25 pn40	Threaded flange
EN1092-1 Type02	DN15-DN1000	pn6 pn10 pn16	Loose flange
GOST 12820-80	DN15-DN2000	pn0.6MPa 1.0MPa 1.6MPa	Plate flange
		pn2.5MPa 4.0MPa 6.4MPa	FF(flate face) RF(raised face)
GOST 12821-80	DN15-DN2000	pn0.6MPa 1.0MPa 1.6MPa	Welding neck flange
		pn2.5MPa 4.0MPa 6.4MPa	FF(flate face) RF(raised face)
GOST 12836	DN15-DN2000	pn0.6MPa 1.0MPa 1.6MPa	Blind flange
		pn2.5MPa 4.0MPa	FF(flate face) RF(raised face)

Product Display

　　STOCK FINISH:

　　The most widely used gasket finish.because practically is suitable for all ordinary service conditions. This is a continuous spiral groove. Flanges size 12" (304.8mm)and smaller are produced with a 1/16" round-nosed tool at a feed of 1/32" per revolution. For sizes 14" (355.6mm)and larger. the finish is made with a 1/8" round-nosed tool at a feed of 3/64" per revolution.

　　SPIRAL SERRATED OR PHONOGRAPHIC:

　　This finish is produced by using a 90°round-nosed tool.

　　CONCENTRIC SERRATED:

　　This finish is produced by using a 90°round-nosed tool.

　　SMOOTH FINISH:

　　The cutting tool employed shall have an approximate 0.06"radius.

　　The resultant surface finish shall have a 125μ inch to 250μ inch(ANSI B16.5 para 6.4;4.1)

　　1. RAISED FACE AND LARGE MALE AND FEMALE

　　A serrated-concentric or serrated-spiral finish with 34 to 64 grooves per inch is used.

　　The cutting tool employed has an approximate 0.06 in.radius.The resultant surface finish shall have a 125μ inch(3.2m)to 500μ inch(12.5μm) approximate roughness.

　　2. TONGUE AND GROOVE AND SMALL MALE AND FEMALE

　　The gasket contact surface does not exceed 125μ in. (3.2μm)roughness

　　3. RING JOINT

　　The inside wall surface of the gasket groove does not exceed 63μin.(1.6μm)roughness,

　　4. BLIND

　　Blind flanges need not be faced in the center if, when this center part is raised, its diameter is at least 1 in. smaller than the inside diameter of the corresponding pressure class fittings. When the center part is depressed, its diameter is not greater than the inside diameter of the corresponding pressure class fittings. Machining of the depressed center is not required.