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A182 F11 Socket Weld Flange

The connection method of A182 F11 socket flange is to insert the pipe into the socket of the flange, and then seal it with welding or use a sealing gasket. This connection method is relatively strong and can adapt to the thermal expansion and contraction of the pipe to a certain extent.

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Content

A182 is a standard specification of the American Society for Testing and Materials (ASTM). This standard covers the technical requirements of various forged or rolled alloy and stainless steel pipe flanges, forged fittings, valves and parts.
F11 is a grade in the A182 standard. The F11 grade material is usually a chromium-molybdenum alloy steel, and the design of this alloy composition gives the material good performance in high temperature and high pressure environments.
The connection method of A182 F11 socket flange is to insert the pipe into the socket of the flange, and then seal it with welding or use a sealing gasket. This connection method is relatively strong and can adapt to the thermal expansion and contraction of the pipe to a certain extent.

Specification of Socket weld Flange

Size Range	1/2″- 3″ / DN15 – DN80
Pressure Rating	Class 150, 300, 600, 1500
Standard	ANSI / ASME B16.5
Carbon Steel	ASTM A105 / A105N
Low Temp Carbon Steel	ASTM A350 LF2 / LF3
Pipeline Steel	ASTM A694 F42 / 46 / 56 / 60 / 65
Alloy Steel	ASTM A182 F11 / 12 / 12 / 5 / 9 / 91 / 92
Stainless Steel	ASTM A182 F304 / 304L / 304H, 316 / 316L, 310S, 317, 347, 904L
Duplex Stainless Steel	ASTM A182 F51, F53, F44

Class 150 lb Socket Weld Flange Dimensions & Weight

NPS	A	B	C	D	E	K	F	G	H	I	J	W
	inch	inch	inch	inch	inch	inch	inch	inch	No. of Holes	inch	inch	kg/pc
	mm	mm	mm	mm	mm	mm	mm	mm	No. of Holes	mm	mm	kg/pc
1/2	3.5	0.62	0.44	0.62	0.88	0.38	1.19	1.38	4	0.62	2.38	0.42
1/2	88.9	15.7	11.2	15.7	22.4	9.6	30.2	35.1	4	15.7	60.45	0.42
3/4	3.88	0.82	0.5	0.62	1.09	0.44	1.5	1.69	4	0.62	2.75	0.59
3/4	98.6	20.8	12.7	15.7	27.7	11.1	38.1	42.9	4	15.7	69.85	0.59
1	4.25	1.05	0.56	0.69	1.36	0.50	1.94	2.0	4	0.62	3.120	0.81
1	108	26.7	14.2	17.5	34.5	12.70	49.3	50.8	4	15.7	79.25	0.81
1-1/4	4.62	1.38	0.62	0.81	1.7	0.56	2.31	2.5	4	0.62	3.5	1.07
1-1/4	117.3	35.1	15.7	20.6	43.2	14.2	58.7	63.5	4	15.7	88.9	1.07
1-1/2	5.0	1.61	0.69	0.88	1.95	0.62	2.56	2.88	4	0.62	3.88	1.36
1-1/2	127	40.9	17.5	22.3	49.5	15.7	65.0	73.15	4	15.7	98.6	1.36
2	6.0	2.07	0.75	1.0	2.44	0.69	3.06	3.62	4	0.75	4.75	2.10
2	152.4	52.6	19.1	25.4	62.0	17.5	77.7	91.9	4	19.1	120.7	2.10
2-1/2	7.0	2.47	0.88	1.12	2.94	0.75	3.56	4.12	4	0.75	5.5	3.33
2-1/2	177.8	62.7	22.4	28.4	74.7	19.0	90.4	104.6	4	19.1	139.7	3.33
3	7.5	3.07	0.94	1.19	3.57	0.81	4.25	5.0	4	0.75	6.0	3.90
3	190.5	78.0	23.9	30.2	90.7	20.6	108.	127	4	19.1	152.4	3.90

Advantages of A182 F11 Socket Weld Flange

Good connection stability
The socket-type connection structure allows the pipe to be inserted into the flange socket. This connection method has better stability in the axial direction than other flange connections (such as flat welding flanges). When the pipe is subjected to axial force (such as the thrust generated by the pressure fluctuation of the medium in the pipe), the socket flange can better resist this force and reduce the displacement and deformation of the pipe connection. For example, in a long-distance oil pipeline, the pressure fluctuation of the oil flow may generate axial force on the pipe connection. The A182F11 socket flange can ensure the stability of the connection.
Adapt to certain pipe deformation
The socket flange allows the pipe to expand and contract to a certain extent. In industrial piping systems, the pipe will expand and contract with changes in temperature. The socket structure can adapt to this deformation within a certain range and reduce the damage to the pipe connection caused by the stress caused by thermal expansion and contraction. For example, in the heating pipe system, the temperature difference between winter and summer is large, and the pipe will have obvious expansion and contraction. The A182F11 socket flange can better adapt to this change and maintain the sealing and integrity of the pipe connection.
High manufacturing precision
The manufacturing process of the F11 socket flange manufactured according to the A182 standard is strictly controlled by regulations. This means that the dimensional accuracy, surface roughness and other parameters of the flange can meet higher standards. High-precision manufacturing helps to improve the matching of flange and pipeline connection, thereby ensuring the sealing and reliability of the connection. For example, in chemical production, for some pipeline systems with high precision requirements, the A182F11 socket flange can meet strict installation and operation requirements.
Relatively convenient installation
The installation process of the socket flange is relatively simple. During installation, first insert the pipe into the flange socket, and then perform operations such as welding or sealing gasket installation. Compared with some flanges with complex structures, it has fewer installation steps and relatively low requirements for installation space during installation. At some industrial equipment installation sites with limited space, the advantage of this installation convenience is more obvious.

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