ASME B16.11 Forged SS Threaded Cap

Thread Type:

NPT

Pressure Ratings:

3000 lbs

6000 lbs

NPS:

1/8"

1/4"

3/8"

1/2 "

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2 "

3"

4"

Material：:

304

304L

316

316L

Custom

Quantity:

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ASME B16.11 Threaded Cap

Standard: ASME B16.11, GB/T14626
Threads Standard: ASME B1.20.1
Forged Stainless Steel Material Standard: ASME A182
Manufacturing Facility Standard: ISO 9001:2015 , GB/T19001-2016
Certification: Material Test Reports (MTRS) and Certificates of Conformity (COC) are available upon request.

Product Overview

This heavy-duty NPT cap provides reliable pipe end closure for extreme high-pressure systems. The precision-forged stainless steel threaded cap handles severe pressure ratings from 3000# to 6000# with superior performance. Manufactured from forged stainless steel to ASME B16.11 standards, this robust NPT cap ensures leak-proof performance across sizes from 1/8"to 4". The forged construction of this durable stainless steel threaded cap guarantees perfect thread engagement and secure sealing. Ideal for oil and gas, chemical processing, and power generation applications, this high-performance NPT cap provides reliable pressure containment where system integrity and end closures are critical requirements. The precision-machined stainless steel threaded cap ensures long-term reliability in demanding service conditions.

Key Features

Extreme Pressure Ratings: Precision-forged to meet the rigorous demands of 3000lb, 6000lb, and 9000lb systems. These fittings are built to maintain safety and performance under the most intense hydraulic and pneumatic loads.
Superior Socket Weld Design: Features deep, precision-machined sockets that allow the pipe to be inserted and fillet-welded. This creates a robust, permanent connection that is resistant to vibration, thermal expansion, and mechanical stress.
High-Grade Stainless Steel: Forged from top-tier stainless steel (available in 304/304L or 316/316L) for exceptional resistance to oxidation, pitting, and crevice corrosion—even in highly acidic or saline environments.
Full Size Range (1/8"to 4"): We offer a comprehensive range of sizes to accommodate everything from small-scale laboratory instrumentation to large industrial production lines.
Precision Manufacturing: Each elbow is machined to exacting tolerances, ensuring perfect alignment with your piping system. This level of precision simplifies the welding process and guarantees a professional, code-compliant installation.

Dimensions & Sizes

stainless steel threaded cap

DN	NPS	W	P	G min	D	B min	L2 min
6	1/8	32	19	4.8	16	6.4	6.7
8	1/4	35	25	4.8	19	8.1	10.2
10	3/8	38	25	4.8	22	9.1	10.4
15	1/2	48	32	6.4	28	10.9	13.6
20	3/4	51	37	6.4	35	12.7	13.9
25	1	60	41	9.7	44	14.7	17.3
32	1-1/4	67	44	9.7	57	17	18
40	1-1/2	79	44	11.2	64	17.8	18.4
50	2	86	48	12.7	76	19	19.2
65	2-1/2	92	60	15.7	92	23.6	28.9
80	3	108	65	19	108	25.9	30.5
100	4	121	68	22.4	140	27.7	33

3000lbs mm

DN	NPS	W	P	G min	D	B min	L2 min
6	1/8	32			22	6.4	6.7
8	1/4	35	27	6.4	25	8.1	10.2
10	3/8	38	27	6.4	32	9.1	10.4
15	1/2	48	33	7.9	38	10.9	13.6
20	3/4	51	38	7.9	44	12.7	13.9
25	1	60	43	11.2	57	14.7	17.3
32	1-1/4	67	46	11.2	64	17	18
40	1-1/2	79	48	12.7	76	17.8	18.4
50	2	86	51	15.7	92	19	19.2
65	2-1/2	92	64	19	108	23.6	28.9
80	3	108	68	22.4	127	25.9	30.5
100	4	121	75	28.4	159	27.7	33

6000lbs mm

Why Shop With Us?

Custom Sizes Available: Don’t see the size you need? Contact us for more information on custom orders and additional specifications.
Fast Support: Have questions? Our technical team is ready to help. We aim to respond to all inquiries as quickly as possible.
Quality Guaranteed: We stand behind the quality of our stainless steel hardware. Happy Shopping!

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