304 316 NPT Stainless Steel Nipple Fitting for Water Use Manufacturer

Availability:

Quantity:



Inquire Add to Basket

Materials:
TP316/L
Certificates:
ISO, PED
Outer diameter:
DN8-DN450
Package:
woven bag or as per customer’s
Price Term:
FOB/CFR/CIF，etc
Payment :
T/T, L/C or as negotiation

Product Description

Class 150 NPT, BSP and BSPT stainless steel castings are made of 304 and 316 materials, with good sealing and corrosion resistance, suitable for water supply, heating and various industrial systems. The products are produced through advanced silica sol precision casting process, with smooth surface and precise dimensions, which can ensure the tightness of installation connection and the stability of system operation. A variety of thread standards are available, and the size and interface form can be customized according to needs to meet the installation requirements of different regions. Keep inventory all year round and deliver on time. Through strict quality control process, the stability of the product in chemical composition and physical properties is ensured, which is suitable for a variety of application scenarios such as construction, municipal and chemical industries.

304 / 316 NPT Stainless Steel Nipple Fitting

Material:

Stainless Steel 304 / 316

Standard:

ASME B16.11

ASTM A312 / A182

Threaded to NPT (National Pipe Thread) standards

Outer Diameter:

Common sizes range from 1/8" to 4"

Wall Thickness:

SCH10 / SCH40 / SCH80 or customized based on application requirements

Length:

Close Nipple / Short Nipple / Long Nipple (Customizable from 30mm to 300mm or longer)

General Specifications:

Pressure Rating: Class 150 / PN10
Thread Standards: BSPT (British Standard Taper), NPT (National Pipe Taper), BSPP (British Standard Parallel)
Size Range: 1/8" ~ 4" (custom sizes available)
Working Temperature: -20°C to 200°C (depending on material and media)
Connection Types: Female Thread / Male Thread / Union / Weld End

Key Advantages:

1.Easy installation, compact structure, suitable for a wide range of systems

2.Precision threading ensures excellent sealing and leak prevention

3.Multiple material options to meet various corrosion and temperature conditions

4.Highly standardized, compatible with global pipe systems

Production Process

Step	Process Name	Description
1	Raw Material Preparation	Select stainless steel or brass; perform MTC & PMI inspection
2	Wax Pattern Making	Create precise wax models; assemble into wax trees (for investment casting)
3	Shell Building	Apply ceramic layers to build a strong mold shell
4	Dewaxing & Firing	Remove wax using steam; fire the shell at high temperatures
5	Metal Pouring (Casting)	Pour molten metal into shell molds; allow controlled cooling
6	Shell Removal & Cleaning	Break off ceramic shell; clean and sandblast or pickle the castings
7	CNC Machining & Threading	Precision machining, thread cutting (BSPT/NPT/BSPP)
8	Inspection	Perform dimensional, visual, thread, and optional PMI or pressure tests
9	Surface Treatment	Pickling, passivation, polishing or electroplating
10	Marking & Packaging	Laser/stamp marking; export packaging with labeling and protection

Production Process

Step	Process Name	Description
1	Raw Material Preparation	Select stainless steel or brass; perform MTC & PMI inspection
2	Wax Pattern Making	Create precise wax models; assemble into wax trees (for investment casting)
3	Shell Building	Apply ceramic layers to build a strong mold shell
4	Dewaxing & Firing	Remove wax using steam; fire the shell at high temperatures
5	Metal Pouring (Casting)	Pour molten metal into shell molds; allow controlled cooling
6	Shell Removal & Cleaning	Break off ceramic shell; clean and sandblast or pickle the castings
7	CNC Machining & Threading	Precision machining, thread cutting (BSPT/NPT/BSPP)
8	Inspection	Perform dimensional, visual, thread, and optional PMI or pressure tests
9	Surface Treatment	Pickling, passivation, polishing or electroplating
10	Marking & Packaging	Laser/stamp marking; export packaging with labeling and protection

Production Process

Step	Process Name	Description
1	Raw Material Preparation	Select stainless steel or brass; perform MTC & PMI inspection
2	Wax Pattern Making	Create precise wax models; assemble into wax trees (for investment casting)
3	Shell Building	Apply ceramic layers to build a strong mold shell
4	Dewaxing & Firing	Remove wax using steam; fire the shell at high temperatures
5	Metal Pouring (Casting)	Pour molten metal into shell molds; allow controlled cooling
6	Shell Removal & Cleaning	Break off ceramic shell; clean and sandblast or pickle the castings
7	CNC Machining & Threading	Precision machining, thread cutting (BSPT/NPT/BSPP)
8	Inspection	Perform dimensional, visual, thread, and optional PMI or pressure tests
9	Surface Treatment	Pickling, passivation, polishing or electroplating
10	Marking & Packaging	Laser/stamp marking; export packaging with labeling and protection

Production Process

Step	Process Name	Description
1	Raw Material Preparation	Select stainless steel or brass; perform MTC & PMI inspection
2	Wax Pattern Making	Create precise wax models; assemble into wax trees (for investment casting)
3	Shell Building	Apply ceramic layers to build a strong mold shell
4	Dewaxing & Firing	Remove wax using steam; fire the shell at high temperatures
5	Metal Pouring (Casting)	Pour molten metal into shell molds; allow controlled cooling
6	Shell Removal & Cleaning	Break off ceramic shell; clean and sandblast or pickle the castings
7	CNC Machining & Threading	Precision machining, thread cutting (BSPT/NPT/BSPP)
8	Inspection	Perform dimensional, visual, thread, and optional PMI or pressure tests
9	Surface Treatment	Pickling, passivation, polishing or electroplating
10	Marking & Packaging	Laser/stamp marking; export packaging with labeling and protection