High Pressure Stainless Steel Internal Thread Pipe Coupling Fitting Female Threaded Nipple International Standard

Type	thread Coupling	Standard	ASTM B16.11
Body Material	Carbon steel, stainless steel, alloy steel, super duplex steel, nickel-based alloys, etc.	Warranty	1 year
Type of Connection	female thread	Pressure	3000LB/6000LB
Thread	NPT/BSPP/BSPT	Size	1/8''-4''
Certificate	ISO 9001	Manufacturing	Forging
Media	Liquid,Gas,Steam,Oil	Manufacturing Capacity	4000pcs/month

 

 

ASME B16.11 Dimensions are in millimeters

Nominal Size		Length of Threaded(Min)		Face to Face	Outside Diameter
DN	NPS	B(mm)	L2(mm)	W	D
3000Lb
6	1/8	6.4	6.7	32	16
8	1/4	8.1	10.2	35	19
10	3/8	9.1	10.4	38	22
15	1/2	10.9	13.6	48	28
20	3/4	12.7	13.9	51	35
25	1	14.7	17.3	60	44
32	1.1/4	17.0	18.0	67	57
40	1.1/2	17.8	18.4	79	64
50	2	19.0	19.2	86	76
65	2.1/2	23.6	28.9	92	92
80	3	25.9	30.5	108	108
100	4	27.7	33.0	121	140
6000Lb
6	1/8	6.4	6.7	32	22
8	1/4	8.1	10.2	35	25
10	3/8	9.1	10.4	38	32
15	1/2	10.9	13.6	48	38
20	3/4	12.7	13.9	51	44
25	1	14.7	17.3	60	57
32	1.1/4	17.0	18.0	67	64
40	1.1/2	17.8	18.4	79	76
50	2	19.0	19.2	86	92
65	2.1/2	23.6	28.9	92	108
80	3	25.9	30.5	108	127
100	4	27.7	33.0	121	159

Note：Dimension B is minimum length of perfect thread.The Length of useful thread (B plus threads 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 (ANSI/ASME B1.20.1).

 

 

• Premium 304 Stainless Steel: Offers excellent corrosion and oxidation resistance, ideal for harsh environments.
• Multiple Pressure Ratings: Available in 2000LB / 3000LB / 6000LB / 9000LB to match your system requirements.
• Forged Construction: High-temperature forging eliminates internal defects, delivering superior strength and impact resistance compared to cast fittings.
• Precision Threading: CNC-machined threads ensure tight, leak-proof connections with standard threaded pipes.
• Product standards:ASME 16.11, GB/T14383-2018,BS-3799 Meets global industrial standards for safety and performance.
• Low Maintenance: Smooth, non-porous surface is easy to clean and resistant to build up.
• Manufacturing process: Feeding → Re-inspection → Cutting → Heating → Forging → Heat treatment → Edge trimming → Shot blasting → Drilling → Machining → Marking → Inspection → Packaging → Shipping

 

• Oil & Gas
• Chemical & Petrochemical
• Food & Beverage Processing
• Pharmaceutical Manufacturing
• Water Treatment & Desalination
• Power Generation
• Marine & Offshore
• Industrial Plumbing & HVAC

 

1. 12 months warranty:

● Great quality products

● We stand behind the quality of our products 100%

● All of our items come with a warranty to give you a peace of mind.

● New Guaranteed: All of our items are in new condition in OEM or Original packing.

2. Accept All Payment Methods:

● We usually accept T/T (wire transfer), Western Union, or Paypal.

● Trade Currency: USD or RMB.

● Payment TT 30% deposit in advance, 70% balance paid before shipment.

● (Sample order) T/T / Western union 100% at sight.

3. Strong Package:

Our package method is in perfect condition, or according customized.

4. Fast delivery:

● Shipment term: CIF/CFR/FOB Ningbo/Shanghai China, China.

● Shipment date: shortly if in stocks, 7-20 days after receiving the deposit if bulk orders.

● Shipment way: we will ship your items by sea, by air, or by express (DHL, UPS, FedEx, TNT, EMS).

5. After-sales service:

● Terrific After-Sales Service: 24 Hours Around The Clock And 12 Months Warranty.

● Life-Long Maintenance Service For The Products.

 

1.Stable quality with strict inspection standards

2.Rich experience in  industrial valve supply

3.OEM & customized solutions available

4.Fast delivery and reliable service

1. Are you a manufacturer or trading company?

We are a professional manufacturer specializing in stainless steel and brass valves and fittings, with strong OEM capability for global markets

2. What is your MOQ?

Standard products: Low MOQ, trial orders supported

Customized products: Depends on design

We support small orders for first cooperation.

3. Can you produce according to drawings or samples?

Yes, we support OEM & custom production.
We can develop molds based on your samples, especially for 1-piece special fittings.

4. What materials do you supply?

Stainless Steel: SS304 / SS316

Brass: HPb59-1 / HPb59-3 /HPb58-3/Lead-free brass

Material test reports (MTC) are available if needed.

5. What is your pressure rating?

Our products are suitable for:

Medium to high pressure applications

Some grease fittings can exceed 10,000 PSI

Exact pressure depends on product type and design.

6. What is your delivery time?

Stock / standard items: 7–15 days

OEM / customized: 20–35 days

Fast production can be arranged for urgent orders.

Stable customers can negotiate better terms.

7. What markets do you mainly export to?

We have rich experience in:
USA
Europe
Middle East

We are familiar with their standards and quality requirements.

8. How do you ensure quality?

100% inspection before shipment

Thread gauge inspection

Pressure / sealing test (if required)

Third-party inspection is acceptable.

9. What thread standards do you support?

NPT (American standard)

BSPT / BSPP (European standard)

We can help confirm thread compatibility.

10. What is your packaging?

Standard export cartons + pallets

Anti-rust protection

Custom packaging & logo marking available.

11. Can you offer competitive pricing?

Yes - we offer very competitive pricing under same quality level, especially for long-term cooperation.

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