1/8''-6'' Stainless Steel Close Nipple With Full Thread SCH40 SCH80

Close Nipples is one type of the pipe nipples with no unthreaded between two connection ends, Full threaded from one ends to the other ends. ln that case, connected fittings come close to touching one another and very little of the nipple can be seen after the connection complete, the closed Nipple can also be called Running Nipples

The Normal pipe Nipple is a short length of pipe with male pipethreads at both ends for connecting other fittings. Generally, there is a short distance of unthreaded pipe between the two threaded ends, depending onhow far apart you need the attached fittings to be. The close Nipples is a special Barrel Nipples with full threaded without any unthreaded part.

Nipple with TOE means Threaded One End - Pipe is threaded on only one end. The other end can be specified as beveled or plain. Nipple TBE means Threaded Both Ends - Pipe is threaded on both ends to accommodate fittings.

According to the export standards, there are American standard ASTM A733, German standard DIN2982, British standard BS EN10241 specifications; According to the process, there are welded close pipe nipples and seamless close pipe nipples.

Note: both the welded nipples and seamless nipples ith Minimum wall thickness at any point to be not more than 10% over and 3 1⁄2% under nominal wall thickness specified

Product Information/Product Description/Basis Information/Specification

Features /Characteristics

Steel Pipe used for Schedules 40 & 80 welded nipples conforms to ASTM A53

Steel Pipe used for Schedule 80 nipples conforms to ASTM A106 Grade B

Both welded and seamless steel nipples conform to ASTM A733

NPT threads on all nipples conform to ASME B1.20.1

Independent lab verification that fittings meet applicable chemical & physical propert

Application and usage:

Electric power, oil and gas, petrochemical, chemical, marine, heating,

Metallurgy

Reference Standards

ASME B16.9 Specification for Butt Welded Fittings

ASME B16.9 specification is designed for butt welded fittings applied in industrial construction pipelines. Including elbow, tee, cross, cap, reducer, and etc.

Standard Scope

The standard includes specifications of NPS 1/2 to NPS 48 (DN15-DN1200) factory-made wrought butt-welded pipe fittings overall dimensions, tolerances ratings, test methods and markings.

Special Fittings

Special fittings here refer to special sizes, forms and tolerances that agreed between buyer and manufacturer.

Fabricated Fittings

Fabricated laterals and other fittings by circumferential or intersection welds are considered pipe fabrication could not apply this standard.

Units under ASME B16.9 shall be stated in both SI (Metric) and U.S. Customary units. Designation for size is NPS.

Reference Standards

It is not considered practical to identify the specific edition of each standard and specification in the individual references. A product made comply with a prior edition of referenced standards and in all other respects conforming to this standard will be considered complied.

ASME B16.5: Pipe Flanges and Flanged Fittings: NPS 1∕2 Through NPS 24 Metric/Inch Standard

ASME B16.25: For Buttwelding Ends

ASME B31: Code for Pressure Piping

ASME B31.3: Process Piping

ASME B36.10M, Welded and Seamless Wrought Steel Pipe

ASME B36.19M, Stainless Steel Pipe

ASME Boiler and Pressure Vessel Code

ASTM A234/A234M-17, Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

ASTM A403/A403M-16, Specification for Wrought Austenitic Stainless Steel Piping Fittings

ASTM A420/A420M-16, Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service

ASTM A815/A815M-14e1, Specification for Wrought Ferritic, Ferritic/Austenitic and Martensitic Stainless Steel Piping Fittings

ASTM A960/A960M-16a, Specification for Common Requirements for Wrought Steel Piping Fittings

ASTM E29-13, Practice for Using Significant Digits in Test Data to Determine Conformance With Specifications

ASTM B361-16, ASTM B363-14, ASTM B366/B366M-17: For other material metals. (Aluminum, Titanium, Nickel, and alloy).

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