AAP Industries High Pressure 3000lb Threaded Union

Specifications
General Information

High Pressure MSS SP83-2006 Threaded Union
AAP CODE				IMPERIAL SIZE	A	B	APPROX KG/PC
BLACK		HOT DIP
NPT	BSPT	NPT	BSPT
PU06				1/8	17	32	0.28
PU08				1/4	19	36	0.28
PU10				3/8	23	41	0.24
PU15	PU15B	PU15G		1/2	30	49	0.34
PU20	PU20B	PU20G	PU20BG	3/4	36	57	0.48
PU25	PU25B	PU25G	PU25BG	1	41	63	0.77
PU32	PU32B	PU32G	PU32BG	1 1/4	50	71	1.03
PU40	PU40B	PU40G	PU40BG	1 1/2	60	77	1.63
PU50	PU50B	PU50G	PU50BG	2	70	86	2.43
PU65				2 1/2	85	120	3.63
PU80				3	102	120	5.27

[6] HIGH PRESSURE FITTINGS

Specifications

Scope on our products

Type: Elbow, M/F Elbow, Tee, Coupling, Half Coupling, Cap, Plug, Bushing, Union, Reducer Insert, Pipe Nipple, Outlets etc

Size: NPS 1/8” – 4” (6mm-100mm)

Rating: Threaded End – 3000lbs

Socketweld End – 3000lbs

Buttweld End – SCH80

Standards: BS 3799 (1974) – Steel Pipe Fittings, screwed and socket-welding for the petroleum industry

ANSI B16.11 (2009) - Forged Steel Fittings, Socket - Welding and Threaded

ASTM A105 - Standard Specification for Carbon Steel Forgings for Piping Applications

MSS SP-97-2012 - Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and

Buttwelding Ends

MSS SP-79-2011 - Socket Welding Reducer Inserts

MSS SP-83-2006 - Class 3000 Steel Pipe Unions Socket Welding and Threaded

ASTM A153 / A153M - 2009 Standard Specification for Zinc Coating (Hot-Dip)

ASTM A182/A182M-12a - Standard Specification for Forged or Rolled Alloy and Stainless Steel Forged Fittings

Threads: AS1722.1/ ISO 7 - British Standard Taper Threads (BSPT)

ANSI B1.20.1 – American National Standard Taper Thread (NPT)

Marking: 1. Carbon and Alloy Steel – Market by Stamping

2. 3/8” and under: Brand only

3. ½” to 4”: marked brand, material, heat number, B16 (to state that it’s an ANSI B16 product), pressure and size

Finishing: Black, Hot-Dipped, Stainless Steel, Galvanised (On Request), Yellow Dichromate (On Request)

British Standard Threads
All measurements in mm
NOMINAL BORE OF PIPE		APPROX. OUTSIDE DIAMETER	NUMBER OF THREADS PER INCH	PITCH	DEPTH OF THREADS	DIAMETER AT GAUGE PLANE	LENGTH OF USEFUL THREAD
IMPERIAL	METRIC	A		P	h	B	E
1/8	6	10.16	28	0.907	0.581	9.72	6.5
1/4	8	13.66	19	1.337	0.856	13.15	9.7
3/8	10	17.17	19	1.337	0.856	16.66	10.1
1/2	15	21.51	14	1.814	1.162	20.95	13.2
3/4	20	27.00	14	1.814	1.162	26.44	14.5
1	25	33.93	11	2.309	1.479	33.24	16.8
1 1/4	32	42.59	11	2.309	1.479	41.91	19.1
1 1/2	40	48.48	11	2.309	1.479	47.80	19.1
2	50	60.47	11	2.309	1.479	59.61	23.4
2 1/2	65	76.09	11	2.309	1.479	75.18	26.7
3	80	88.87	11	2.309	1.479	87.88	29.8
4	100	114.14	11	2.309	1.479	113.03	35.8
5	125	139.65	11	2.309	1.479	138.43	40.1
6	150	165.12	11	2.309	1.479	163.83	40.1

HIGH PRESSURE FITTINGS [6]

Specifications

Angle between sides of thread is 60 degrees. Taper of thread, on diameter is 3 1/2 inch per foot.

Angle of taper with center line is 1˚47’.

The basic maximum thread height, h, of the truncated thread is 0.8 x pitch of thread. The crest and root are truncated a

minimum of 0.033 x pitch for all pitches. For maximum depth of truncation, see Table 2.

A Also length of thin ring gage and length from gaging notch to small end of plug gage.

B Also pitch diameter at gauging notch (handtight plane).

C Also length of plug gauge.

Imperfect Threads

due to Chamfer on

L2 V die

L5 2p Taper of Thread 1

in 16 Measured on

L3 L1

Diameter

E0 E1 E5

E2 D

American National Standard Taper Pipe Threads, NPT
Nominal Pipe	Outside Dia. Of Pipe,	Threads per Inch,	Pitch of Thread,	Pitch Diameter at Beginning of External Thread,	Handtight Engagement		Effective Thread, External
					Length,a L1	Dia.,b E1	Length,c L2	Dia., E2
Size	D	n	p	E0	Inch		Inch
1/16	0.3125	27	0.03704	0.27118	0.160	0.28118	0.2611	0.28750
1/8	0.405	27	0.03704	0.36351	0.1615	0.37360	0.2639	0.38000
1/4	0.540	18	0.05556	0.47739	0.2278	0.49163	0.4018	0.50250
3/8	0.675	18	0.05556	0.61201	0.240	0.62701	0.4078	0.63750
1/2	0.840	14	0.07143	0.75843	0.320	0.77843	0.5337	0.79179
3/4	1.050	14	0.07143	0.96768	0.339	0.98887	0.5457	1.00179
1	1.315	11.5	0.08696	1.21363	0.400	1.23863	0.6828	1.25630
1 1/4	1.660	11.5	0.08696	1.55713	0.420	1.58338	0.7068	1.60130
1 1/2	1.900	11.5	0.08696	1.79609	0.420	1.82234	0.7235	1.84130
2	2.375	11.5	0.08696	2.26902	0.436	2.29627	0.7565	2.31630
2 1/2	2.875	8	0.12500	2.71953	0.682	2.76216	1.1375	2.79062
3	3.500	8	0.12500	3.34062	0.766	3.38850	1.2000	3.41562
3 1/2	4.000	8	0.12500	3.83750	0.821	3.88881	1.2500	3.91562
4	4.500	8	0.12500	4.33438	0.844	4.38712	1.3600	4.41562
5	5.563	8	0.12500	5.39073	0.937	5.44929	1.4063	5.47862
6	6.625	8	0.12500	6.44609	0.958	6.50597	1.5125	6.54062

Pressure Temperature Chart
PSI (°F)
nominal pressure ratings	Screwed and Socket welding fittings
	-20 ~ 100°	150°	200°	250°	300°	350°	400°	450°	500°	550°	600°	650°	700°	750°	800°	850°	900°	950°	1000°
2000lb	2000	1970	1940	1915	1895	1875	1850	1810	1735	1640	1540	1430	1305	1180	1015	830	615	425	235
3000lb	3000	2955	2915	2875	2845	2810	2775	2715	2605	2460	2310	2150	1960	1775	1525	1250	925	640
6000lb	6000	5915	5830	5750	5690	5625	5550	5430	5210	4925	4620	4300	3920	3550	3050	2500	1855	1285	715

[6] HIGH PRESSURE FITTINGS

Specifications

Minimum Wall Thickness
According to ASME B16.11	SOCKETWELD FITTINGS			THREADED FITTINGS
NPS	Socket Wall Thickness (min)	Body Wall Thickness (min)	Body Wall Thickness (min)	Cap End Wall Thickness (min)
1/8	3.2	2.4	3.0	5.0
1/4	3.3	3.0	3.5	5.0
3/8	3.5	3.2	3.5	5.0
1/2	4.1	3.8	4.0	6.5
3/4	4.3	3.9	4.5	6.5
1	5.0	4.6	5.0	9.5
1 1/4	5.3	4.9	5.5	9.5
1 1/2	5.6	5.1	5.5	11.0
2	6.1	5.6	7.0	12.5
2 1/2	7.7	7.0	7.5	16.0
3	8.3	7.6	9.0	19.0
4	9.4	8.6	11.0	22.0

Dimensional Tolerance for Forged Socket Weld Fittings
ITEM	TYPE OF PIPE FITTING	1/8 TO 1/4	3/8 TO 3/4	1 TO 2	2 1/2 TO 4
Bore Diameter Of Socket	ALL TYPES OF PIPE FITTINGS	0.3, -0			±0.4, -0
Bore Diameter Of Fitting		±0.4			±0.8
Centricity of Bore		±0.8
Centre to bottom of socket	45, 90D Elbow, Tee	±0.3	±1.5	±2	±2.5
Bottom to bottom of socket	Full coupling	±1.5	±3	±4	±5
Bottom of socket to opposite face	Half coupling	±0.8	±1.5	±2	±2.5

Dimensions of Seamless Steel Pipe
TOLERANCES			NPS	OUTSIDE DIAMETER			STEEL PIPE WALL THICKNESS
A53 A106 O. D.	API 5L O.D.	A530 0.D.		AVG	MAX	MIN	S/10	S/30	S/40	STD	XS	S/80	S/160	XXS
+1/64	+1/64	+1/64	1/8		10.7	9.5	1.2	1.5	1.7	S/40	S/80	2.4	3.2	4.8
-1/32	-1/32	-1/32	1/4	13.7	14.1	12.9	1.7	1.9	2.2	S/40	S/80	3	3.7	6.1
			3/8	17.1	17.5	16.3	1.7	1.9	2.3	S/40	S/80	3.2	4	6.4
			1/2	21.3	21.7	20.5	2.1	2.4	2.8	S/40	S/80	3.7	4.7	7.5
			3/4	26.7	27.1	25.9	2.1	2.4	2.9	S/40	S/80	3.9	5.5	7.8
			1	33.4	33.8	32.8	2.8	2.9	3.4	S/40	S/80	4.5	6.4	9.1
			1 1/4	42.2	42.6	41.4	2.8	3	3.6	S/40	S/80	4.9	6.4	9.7
			1 1/2	48.3	48.7	47.5	2.8	3.2	3.7	S/40	S/80	5.1	7.1	10.2
±1%		+ 1/32 -1/32	2	60.3	60.9	59.7	2.8	3.2	3.9	S/40	S/80	5.5	8.7	11.1
	±.75%		2 1/2	73	73.7	72.2	3.1	4.8	5.2	S/40	S/80	7	9.5	14
			3	88.9	89.8	88	3.1	4.8	5.5	S/40	S/80	7.6	11.1	15.2
			4	114.3	115.4	113.2	3.1	4.8	6	S/40	S/80	8.6	13.5	17.1

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Reference: Washington State University

AAP Industries High Pressure 3000lb Threaded Union

[6] HIGH PRESSURE FITTINGS

Specifications

Scope on our products

HIGH PRESSURE FITTINGS [6]

Specifications

Irrigation Unit Conversions

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