Sockolet

The full name is Socket Welding Outlet, which is a kind of branch connection. MSS SP 97 Sockolet provides an outlet from a larger pipe to a smaller one. The users should weld it on the main pipe and connect branches by socket weld.

It is mainly used for reinforcing Pipe Fittings for branch pipe connection. Instead of Reducing Tee, reinforcing plate and reinforcing pipe section, it is the most common branch connection method today.

Forged MSS SP 97Sockolet 

Forging refers to the process of repeatedly beating the metal blanks with forging machines to make them have certain mechanical properties, shape and size.

It has the advantages of the internal microstructure is more uniform and the mechanical properties are better than welding parts and castings.

The manufacture standard is MSS SP 97.

What is MSS SP 97

MSS SP 97 is the production standard for 90 degree integrally reinforced Forged Branch Outlet Fittings. It covers the essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements of pipe fittings. The production of special size and materials  requires the agreement of the buyer and the manufacturer.

Sockolet are usually manufactured according to MSS SP 97 standard.

ASTM A105/A105N Socket Weld Outlet

ASTM refers to the standard that rules material specification made by American Society of Testing Materials, A refers to class code and meaning black metal, and 105 is serial number. And the “N”  means normalizing.

Sockolet Pressure

MSS SP 97 Sockolet has two pressure rating which are 3000 LB and 6000 LB. They different face of fitting to crotch, OD of fitting, socket wall thickness and cut hole diameter.

Specifications for Outlet

Outlet	Connection	Standard	Size Range	Pressure Rating
WELDOLET	BW	MSSSP-97	1/8″ – 24″ / DN6 – DN600	STD、XS，SCH160
SOCKOLET	SW	MSSSP-97	1/8″ – 4″ / DN6 – DN100	Class 3000lbs, 6000lbs
THREADOLET	THD	MSSSP-97	1/8″ – 4″ / DN6 – DN100	Class 3000lbs, 6000lbs

ASTM A105/A105N Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Cu	Ni	Cr	Mo	V
ASTM A105	MIN		0.60			0.10
	MAX	0.35	1.05	0.035	0.040	0.35	0.40	0.40	0.30	0.12	0.08
ASTM A105N	MIN		0.600
	MAX	0.350	1.050	0.040	0.050		0.400		0.300	0.120	0.080

ASTM A105/A105N Mechanical Property

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %	R/A %	HARDNESS
ASTM A105	485 min	250 min	22 min	30 min	197 max
ASTM A105N	485min	250 min	22 min	30 min	197 max

3/4″ Sockolet Dimensions

3/4″ Sockolet 3000# 

Face of Fittings to Crotch	OD of Fittings	Socket Wall Thickness	Cut Hole Diameter
16	38	4.67	24

3/4″ Sockolet 6000# 

Face of Fittings to Crotch	OD of Fittings	Socket Wall Thickness	Cut Hole Diameter
24	47	5.97	19

Nominal  Size		Branch Nominal Size		Depth of Socket	Face of Fitting to Crotch		OD of Fitting		Socket Wall Thickness		Cut Hole Dia.
DN	NPS	DN	NPS	J min	A                  max		D1 min		C min		d1 nom
					3000	6000	3000	6000	3000	6000	3000	6000
8-900	1/4-36	6	1/8	9.5	10		27		3.18		16
10-900	3/8-36	8	1/4	9.5	10		27		3.78		16
15-900	1/2-36	10	3/8	9.5	13		30		4.01		19
20-900	3/4-36	15	1/2	9.5	16	24	38	47	4.67	5.97	24	19
25-900	1-36	20	3/4	12.5	16	25	47	53	4.9	6.96	30	25
32-900	11/4-36	25	1	12.5	22	29	56	63	5.69	7.92	36	33
40-900	11/2-36	32	11/4	12.5	22	30	66	74	6.07	7.92	45	38
50-900	2-36	40	11/2	12.5	24	32	75	83	6.35	8.92	51	49
65-900	21/2-36	50	2	16	24	37	90	104	6.93	10.92	65	59
80-900	3-36	65	21/2	16	25		105		8.76		76
100-900	4-36	80	3	16	30		124		9.52		94
125-900	5-36	100	4	19	30		154		10.69		121