Description
A Stainless Steel Close Nipple is an essential pipe fitting used in various industrial and plumbing applications to connect two female-threaded pipes or fittings. It is known for its durability, resistance to corrosion, and ability to withstand high-pressure environments. Stainless steel close nipples are widely used in industries such as oil and gas, chemical processing, food and beverage, and marine applications due to their superior strength and longevity. Emirerri Steel provides high-quality stainless steel close nipples designed to meet industry standards.
What is a Stainless Steel Close Nipple?
A close nipple is a short piece of pipe with external threads on both ends, allowing it to connect two threaded fittings or pipes with minimal space between them. Unlike standard pipe nipples, a close nipple has no unthreaded section, making it ideal for compact installations. It is commonly used in fluid and gas transfer systems to ensure a leak-proof connection. We offer precision-engineered close nipples with superior threading and durability.
Technical Specifications
The following are the key technical details of a Stainless Steel Close Nipple:
- Material: Stainless Steel (Grades: 304, 316, 316L, 321, 310S, Duplex Stainless Steel)
- Size Range: 1/8″ to 6″ (Custom sizes available upon request)
- Standard Sizes Available: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 4″, 5″, 6″
- Thread Type: NPT (National Pipe Thread), BSPT (British Standard Pipe Taper), BSP (British Standard Pipe), Metric Threads
- Length: Typically shorter than standard nipples with threads covering the entire body
- Pressure Rating: Up to 6000 PSI (depending on size, material, and thread type)
- Temperature Range: -100°F to 1200°F (-73°C to 649°C)
- Standards Compliance: ASTM A312, ANSI B1.20.1, ASME B16.11, ASTM A733, DIN, JIS, and ISO
- Finish: Polished, Electroplated, Pickled, or Plain
- End Connection: Threaded Male-to-Male (M/M)
- Wall Thickness: Schedule 10, 40, 80, 160, XXS
Stainless Steel Close Nipple Dimensions
| Nom. Pipe Size | Close Nipple | Short Nipple | Long Nipple | Sch40/STD | Sch80/XS | Sch160 | XXS |
|---|---|---|---|---|---|---|---|
| 1/8" | 3/4" | 1-1/2" | 2-12" | 0.37 | 0.47 | - | - |
| 1/4" | 7/8" | 1-1/2" | 2-12" | 0.63 | 0.8 | - | - |
| 3/8" | 1" | 1-1/2" | 2-12" | 0.84 | 1.1 | - | - |
| 1/2" | 1-1/8" | 1-1/2" | 2-12" | 1.27 | 1.62 | 1.95 | 2.55 |
| 3/4" | 1-3/8" | 2" | 2-12"-2" | 1.69 | 2.2 | 2.9 | 3.64 |
| 1" | 1-1/2" | 2" | 2-12"-2" | 2.5 | 3.24 | 4.24 | 5.45 |
| 1-1/4" | 1-5/8" | 2-1/2" | 3-12" | 3.39 | 4.47 | 5.61 | 7.77 |
| 1-1/2" | 1-3/4" | 2-1/2" | 3-12" | 4.05 | 5.41 | 7.25 | 9.55 |
| 2" | 2" | 2-1/2" | 3-12" | 5.44 | 7.48 | 11.11 | 13.44 |
| 2-1/2" | 2-1/2" | 3" | 3-12"-12" | 8.63 | 11.41 | 14.92 | 20.39 |
| 3" | 2-5/8" | 3" | 3-12"-12" | 11.29 | 15.27 | 21.35 | 27.68 |
| 3-1/2" | 2-3/4" | 4" | 4-12"-12" | 13.57 | 18.64 | - | - |
| 4" | 2-7/8" | 4" | 4-12"-12" | 16.8 | 22.32 | 33.54 | 41.03 |
| 5" | 3" | 4-1/2" | 5-12" | 21.77 | 30.97 | 31.35 | 57.43 |
| 6" | 3-1/8" | 4-1/2" | 5-12" | 28.26 | 42.56 | 67.57 | 79.22 |
Types of Stainless Steel Close Nipples
Stainless steel close nipples come in various types based on their grade, thread type, and pressure rating:
- 304 Stainless Steel Close Nipple – Offers excellent corrosion resistance, making it ideal for general applications.
- 316 Stainless Steel Close Nipple – Contains molybdenum for superior corrosion resistance, perfect for marine and chemical processing industries.
- 316L Stainless Steel Close Nipple – Low-carbon variant of 316 stainless steel, reducing the risk of carbide precipitation in high-temperature applications.
- 321 Stainless Steel Close Nipple – Stabilized with titanium to resist intergranular corrosion.
- Duplex Stainless Steel Close Nipple – Provides excellent mechanical strength and resistance to chloride-induced stress corrosion cracking.
Key Features and Benefits
- Corrosion Resistance
- Stainless steel close nipples are resistant to rust and oxidation, making them suitable for harsh environments, including chemical plants, saltwater applications, and food processing units.
- High Strength and Durability
- Manufactured from premium-grade stainless steel, these nipples exhibit high tensile strength and long-lasting performance under extreme conditions.
- Leak-Proof Connection
- Precision threading ensures a tight and secure fit, preventing leaks and enhancing system efficiency.
- Versatile Applications
- Due to their compact size and strength, stainless steel close nipples can be used in plumbing, hydraulic, pneumatic, and industrial piping systems.
- Heat and Pressure Tolerance
- Capable of handling high temperatures and pressures, these fittings are ideal for steam lines, gas distribution, and high-pressure fluid transfer systems.
Choosing the Right Stainless Steel Close Nipple
When selecting a close nipple, consider the following factors:
- Material Grade: Choose between 304 and 316 stainless steel based on the level of corrosion resistance required.
- Size and Length: Ensure compatibility with existing pipe fittings.
- Thread Type: Select the appropriate threading standard (NPT, BSPT, or BSPP) based on the system specifications.
- Pressure Rating: Verify the pressure handling capability of the fitting according to application needs.
- Compliance with Standards: Ensure the product meets ASTM, ASME, and ISO standards for quality assurance.
A Stainless Steel Close Nipple is a vital pipe fitting used in various industries for secure and leak-proof connections. For high-quality stainless steel close nipples, trust Emirerri Steel for precision-engineered products that meet international standards.
Applications of Stainless Steel Close Nipples
These fittings are widely used in multiple industries, including:
- Oil and Gas Industry
- Used in pipelines, drilling equipment, and high-pressure gas transfer systems.
- Suitable for both upstream and downstream operations.
- Essential for offshore rigs where corrosion resistance is crucial.
- Chemical Processing Plants
- Suitable for handling aggressive chemicals and corrosive fluids.
- Used in the production of acids, solvents, and other industrial chemicals.
- Ensures a safe and leak-free connection in high-temperature processes.
- Marine and Shipbuilding
- Ideal for seawater applications due to excellent resistance to chloride corrosion.
- Used in ballast systems, fuel lines, and wastewater treatment on ships.
- Essential for long-term performance in extreme marine environments.
- Food and Beverage Industry
- Used in sanitary piping systems for dairy, beverage, and brewery applications.
- Compliant with hygienic standards for food safety.
- Ensures contamination-free fluid transfer.
- HVAC Systems
- Installed in heating, ventilation, and air conditioning systems for fluid and gas transport.
- Used in chiller and cooling tower applications.
- Provides durability in varying temperature conditions.
- Water Treatment Plants
- Essential for pipelines handling potable and wastewater treatment processes.
- Resistant to scaling and biofouling, ensuring clean water flow.
- Used in desalination plants and sewage treatment systems.
- Power Generation Plants
- Used in steam and high-temperature piping networks.
- Essential in thermal and nuclear power plants for high-pressure applications.
- Ensures structural integrity in critical infrastructure.
- Fire Protection Systems
- Utilized in fire suppression systems and sprinkler installations.
- Provides reliability in high-pressure fire safety applications.
- Resistant to corrosion, ensuring long-term functionality.
- Automotive and Aerospace Industry
- Used in hydraulic and fuel systems in vehicles and aircraft.
- Provides leak-proof connections in high-performance engines.
- Essential for durability in extreme operating conditions.
- Pharmaceutical and Biotechnology
- Used in sterile fluid transfer applications.
- Complies with stringent industry regulations for cleanroom environments.
- Essential for the production of medicines and vaccines.
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