GOST 13973-74 Plugs for Pipeline Connections on External Cone. Construction and Dimensions

Plugs for pipeline connections on external cone. Construction and dimensions.

PLUGS FOR PIPELINE CONNECTIONS ON EXTERNAL CONE Construction and dimensions Plugs for tube connections on external cone. Construction and dimensions	GOST 13973-74 Supersedes GOST 13973-68

Plugs are manufactured in two types.

The construction and dimensions of plugs shall conform to those shown in Fig. 1 and 2 and in the table.

• Reference dimension.

**D₂=S.

Fig. 1

Fig. 2

Dimensions in mm

Outside diameter of tubes Dn	Application	d		D	D ₁	S	l ± 0.3	l ₁ -1.0	l₂± 0.2	l₃		L	Mass of 100 pcs., kg
										Nom.	Limit deviation		Aluminium alloy	Steel
3		-	1 ,0	M 8 × 1	11 ,5	10	13	-	1 ,2	2 ,5	± 0 ,2	18	-	0 ,58
4			1 ,2	M 10 × 1	13 ,8	12	14		1 ,5			19	-	0 ,98
6				M 12 × 1	16 ,2	14	15			3 ,0		21	0 ,60	1 ,68
8			1 ,5	M 14 × 1	19 ,6	17			2 ,0				0 ,87	2 ,42
10		7 ,5		M 16 × 1			16	17				22	0 ,89	2 ,48
12		9.5		M 20 × 1.5	25 ,4	22	20	20				26	1 ,41	3 ,93
14		11 ,5		M 22 × 1.5	27 ,7	24							1 ,90	5 ,30
16		13 ,5		M 24 × 1.5	31 ,2	27	21	21		3 ,5	± 0 ,25	28	2 ,48	6 ,92
18		15 ,5		M 27 × 1.5	34 ,6	30							3 ,13	8 ,72
20		17 ,0		M 30 × 1.5	36 ,9	32	22			4 ,0		30	4 ,09	11 ,40
22		19 ,0		M 33 × 2	41 ,6	36	26	24				34	4 ,55	12 ,70
25		22 ,0											5 ,65	15 ,75
28		25 ,0		M 39 × 2	47 ,3	41	27	32				35	6 ,18	17 ,2-3
30		27 ,0											6 ,10	17 ,05
32		28 ,0	2 ,0	M 42 × 2	53 ,1	46			2 ,5			36	6 ,76	18 ,80
34		30 ,0		M 45 × 2			28						8 ,14	22 ,70
36		32 ,0		M 48 × 2	57 ,7	50	29	33				37	9 ,03	25 ,20
38		34 ,0											9 ,20	25 ,70

Example of designation for a type 1 plug for a Dn = 12 mm pipeline, made of aluminium alloy:

Plug 1-12-31 A GOST 13973-74

Same, made of steel grade 45:

Plug 1-12-22 A GOST 13973-74

Same, made of steel grade 12Kh18N9T:

Plug 1-12-13 A GOST 13973-74

Same, made of steel grade 13Kh11N2V2MF:

Plug 1-12-11 A GOST 13973-74

Same, for general-purpose products:

Plug 1-12-31 GOST 13973-74

Plug 1-12-22 GOST 13973-74

Plug 1-12-13 GOST 13973-74

Plug 1-12-11 GOST 13973-74

Example of designation for a type 2 plug for a D = 12 mm pipeline, made of aluminium alloy:

Plug 2-12-31 A GOST 13973-74

Same, made of steel grade 45:

Plug 2-12-22 A GOST 13973-74

Same, made of steel grade 12Kh18N9T:

Plug 2-12-13 A GOST 13973-74

Same, made of steel grade 13Kh11N2V2MF:

Plug 2-12-11 A GOST 13973-74

Same, for general-purpose products:

Plug 2-12-31 GOST 13973-74

Plug 2-12-22 GOST 13973-74

Plug 2-12-13 GOST 13973-74

Plug 2-12-11 GOST 13973-74

The threaded part of plugs shall be per GOST 13955-74.

Marking and stamping shall be per GOST 13977-74.

Technical requirements shall be per GOST 13977-74.