TH - CAP

Table 7 Threaded Fittings – CAP
Nominal Pipe Size	End-to-End Caps, P		Outside Diameter, D		Min. End Wall Thickness, G		Min. Length of Thread [Note (1)]
	Class Designation		Class Designation		Class Designation
	3000	6000	3000	6000	3000	6000	B	L2
1 ⁄ 8	19.00	. . .	16.00	22.00	4.80	. . .	6.40	6.70
1 ⁄ 4	25.00	27.00	19.00	25.00	4.80	6.40	8.10	10.20
3 ⁄ 8	25.00	27.00	22.00	32.00	4.80	6.40	9.10	10.40
1 ⁄ 2	32.00	33.00	28.00	38.00	6.40	7.90	10.90	13.60
3 ⁄ 4	37.00	38.00	35.00	44.00	6.40	7.90	12.70	13.90
1	41.00	43.00	44.00	57.00	9.70	11.20	14.70	17.30
1-1⁄4	44.00	46.00	57.00	64.00	9.70	11.20	17.00	18.00
1-1⁄2	44.00	48.00	64.00	76.00	11.20	12.70	17.80	18.40
2	48.00	51.00	76.00	92.00	12.70	15.70	19.00	19.20
2-1⁄2	60.00	64.00	92.00	108.00	15.70	19.00	23.60	28.90
3	65.00	68.00	108.00	127.00	19.00	22.40	25.90	30.50
4	68.00	75.00	140.00	159.00	22.40	28.40	27.70	33.00

 

GENERAL NOTES:
(a) Dimensions are in millimeters.
(b) Class 2000 and NPS1⁄8 Class 6000 couplings, half couplings, and caps are not included in this Standard.

(c) The wall thickness away from the threaded ends shall meet the minimum wall thickness requirements of Table 5 for the appropriate NPS and Class Designation fitting.

NOTE:
(1) Dimension B is minimum length of perfect thread. The length of useful thread (B plus thread with fully formed roots and flat crests) shall not be less than L2 (effective length of external thread) required by American National Standard for Pipe Threads (ASME B1.20.1). See para. 6.3.