Threaded (Screwed) flange

Threaded (Screwed) flange is similar to the Slip-On flange, but the bore is threaded. Its chief merit is that it can be assembled withour welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.

Standards, Dimensions & Weight

• ASME/ANSI B16.5 Class 150 TH
• ASME/ANSI B16.5 Class 300 TH
• ASME/ANSI B16.5 Class 600 TH
• ASME/ANSI B16.5 Class 900 TH
• DIN 2565 PN6
• DIN 2566 PN10

Uses of threaded flanges :

• Threaded flanges can be fitted to pipes of various sizes without welding and this is one chief benefit for which these flanges are highly demanded.
• They can be used in extremely high pressure applications, particularly at or near atmospheric temperature, where the necessary post weld heat treatment is not possible.
• They are ideal for small diameter piping applications.
• They are economical and time saving devices.
• These threaded flanges are normally designed for non-cyclic applications.
• The flanges are suitable to be used in applications where welding is hazardous.
• They can be used in highly explosive areas.

Specifications:

Size: 1/2” to 60”, DN 12mm to DN 1500mm
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ

Material:

• Cabon steel: A105, A350 LF2
• Stainless steel: A182 F304/F304L/F316/F316L/F321
• Alloy steel: F11, F12

Type: Welding-neck flange, slip on flange, screwed flange, blind flange, lap joint flange, socket-welding flange

Packing: plywood case and plywood pallet

ASME/ANSI B16.5 Class 900 TH

Pipe flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.

It also provides easy access for cleaning, inspection or modification.

Threaded (Screwed) flange is similar to the Slip-On flange, but the bore is threaded. Its chief merit is that it can be assembled withour welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.

Nominal Pipe Size	Outside Diameter of Flange	Diameter of Raised Face	Thickness of Flanges Min.	Diameter of Hub	Length Through Hub	Thread Length Threaded Min.	Bore	Counter-bore Threaded Flange, Min.,	Diameter of Bolt Circle	Diameter of Bolt Holes	Number of Bolts	Approxi-mate Weight kgs
NPS	O	R	tf	X	Y	T	B	Q	W	I	n
1/2	120	34.9	22.3	38	32	23	22.2	23.6	82.6	22.2	4	1.73
3/4	130	42.9	25.4	44	35	26	27.7	29.0	88.9	22.2	4	2.33
1	150	50.8	28.6	52	41	29	34.5	35.8	101.6	25.4	4	3.48
1 1/4	160	63.5	28.6	64	41	31	43.2	44.4	111.1	25.4	4	4.00
1 1/2	180	73.0	31.8	70	44	32	49.5	50.3	123.8	28.6	4	5.54
2	215	92.1	38.1	105	57	39	61.9	63.5	165.1	25.4	8	9.79
2 1/2	245	104.8	41.3	124	64	48	74.6	76.2	190.5	28.6	8	13.82
3	240	127.0	38.1	127	54	42	90.7	92.2	190.5	25.4	8	11.51
4	290	157.2	44.5	159	70	48	116.1	117.6	235.0	31.8	8	19.52
5	350	185.7	50.8	190	79	54	143.8	144.4	279.4	34.9	8	32.14
6	380	215.9	55.6	235	86	58	170.7	171.4	317.5	31.8	12	41.04
8	470	269.9	63.5	298	102	64	221.5	222.2	393.7	38.1	12	70.97
10	545	323.8	69.9	368	108	72	276.2	276.2	469.9	38.1	16	100.32
12	610	381.0	79.4	419	117	77	327.0	328.6	533.4	38.1	20	133.26
14	640	412.8	85.8	451	130	83	359.2	360.4	558.8	41.3	20	152.57
16	705	469.9	88.9	508	133	86	410.5	411.2	616.0	44.5	20	185.15
18	785	533.4	101.6	565	152	89	461.8	462.0	685.8	50.8	20	256.28
20	855	584.2	108.0	622	159	93	513.1	512.8	749.3	54.0	20	315.13
24	1040	692.2	139.7	749	203	102	616.0	614.4	901.7	66.7	20	603.79

ASME/ANSI B16.5 Class 600 TH

Pipe flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.

It also provides easy access for cleaning, inspection or modification.

Threaded (Screwed) flange is similar to the Slip-On flange, but the bore is threaded. Its chief merit is that it can be assembled withour welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.

Nominal Pipe Size	Outside Diameter of Flange	Diameter of Raised Face	Thickness of Flanges Min.	Diameter of Hub	Length Through Hub	Thread Length Threaded Min.	Bore	Counter-bore Threaded Flange, Min.	Diameter of Bolt Circle	Diameter of Bolt Holes	Number of Bolts	Approxi-mate Weight kgs
NPS	O	R	tf	X	Y	T	B	Q	W	I	n
1/2	95	34.9	14.3	38	22	16	22.2	23.6	66.7	15.9	4	0.74
3/4	115	42.9	15.9	48	25	16	27.7	29.0	82.6	19.1	4	1.21
1	125	50.8	17.5	54	27	18	34.5	35.8	88.9	19.1	4	1.56
1 1/4	135	63.5	20.7	64	29	21	43.2	44.4	98.4	19.1	4	2.11
1 1/2	155	73.0	22.3	70	32	23	49.5	50.6	114.3	22.2	4	2.97
2	165	92.1	25.4	84	37	29	61.9	63.5	127.0	19.1	8	3.64
2 1/2	190	104.8	28.6	100	41	32	74.6	76.2	149.2	22.2	8	5.26
3	210	127.0	31.8	117	46	35	90.7	92.2	168.3	22.2	8	7.08
3 1/2	230	139.7	35.0	133	49	40	103.4	104.9	184.2	25.4	8	8.99
4	275	157.2	38.1	152	54	42	116.1	117.6	215.9	25.4	8	14.83
5	330	185.7	44.5	189	60	48	143.8	144.4	266.7	28.6	8	24.46
6	355	215.9	47.7	222	67	51	170.7	171.4	292.1	28.6	12	28.78
8	420	269.9	55.6	273	76	58	221.5	222.2	349.2	31.8	12	43.77
10	510	323.8	63.5	343	86	66	276.2	276.2	431.8	34.9	16	71.35
12	560	381.0	66.7	400	92	70	327.0	328.6	489.0	34.9	20	84.95
14	605	412.8	69.9	432	94	74	359.2	360.4	527.0	38.1	20	100.05
16	685	469.9	76.2	495	106	78	410.5	411.2	603.2	41.3	20	141.69
18	745	533.4	82.6	546	117	80	461.8	462.0	654.0	44.5	20	175.13
20	815	584.2	88.9	610	127	83	513.1	512.8	723.9	44.5	24	222.87
24	940	692.2	101.6	718	140	93	616.0	614.4	838.2	50.8	24	313.75