OEM manufacturer ASME B16.11 · ASME B1.20.1 (NPT) · BS 21 (BSPT)
Threaded Fittings Manufacturer in India — NPT & BSPT
Teshi Group is an OEM manufacturer of forged threaded (screwed) fittings with NPT threads to ASME B1.20.1 or BSPT to BS 21, for instrument, utility and small-bore process lines. Elbows, tees, crosses, couplings, caps, plugs, bushings and hex nipples are machined from ASTM A105 and A182 F304/F316 forgings in Class 2000, 3000 and 6000. Thread gauging is recorded for every batch.
Thread gauging is recorded for every batch — NPT to ASME B1.20.1, BSPT on request.
Threaded Fittings — specifications & size ranges
| Type | Standard | Size range | Pressure class | Material grades |
|---|---|---|---|---|
| Elbow 90° / 45° | ASME B16.11 | ⅛"–4" | 2000# / 3000# / 6000# | A105, A182 F304/F316 |
| Tee / Cross | ASME B16.11 | ⅛"–4" | 2000# / 3000# / 6000# | A105, A182 F316 |
| Coupling / Half Coupling | ASME B16.11 | ⅛"–4" | 3000# / 6000# | A105, A182 F304 |
| Hex Plug / Bushing | ASME B16.11 | ⅛"–4" | 3000# / 6000# | A105, A182 F316 |
| Hex Nipple | MSS SP-95 | ⅛"–2" | SCH 80 / SCH 160 | A105, A182 F304/F316 |
Threaded Fittings types
9 productsThreaded Elbow
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerThreaded Tee
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerThreaded Cross
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerThreaded Coupling
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerThreaded Union
MSS SP-83 · ASME B1.20.1
View productOEM manufacturerThreaded Cap
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerThreaded Plug
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerHex Head Bushing
ASME B16.11 · ASME B1.20.1
View productOEM manufacturerHex Nipple & Pipe Nipple
ASTM A733 · ASME B1.20.1
View productTechnical data sheets
Material grades
All gradesASME B16.11 pressure class and matching pipe schedule
Forged fitting class is chosen to match the wall thickness of the pipe it joins.
| Class | Socket weld — matching pipe | Threaded — matching pipe | Size range |
|---|---|---|---|
| 2000 | — | Sch 80 / XS | ⅛"–4" |
| 3000 | Sch 80 / XS | Sch 160 | ⅛"–4" |
| 6000 | Sch 160 | XXS | ⅛"–4" |
| 9000 | XXS | — | ½"–2" |
Per ASME B16.11 Table 1. Fittings may be used with other schedules; the governing standard and piping code take precedence.
Documentation
What you receive with every order
- Hard-stamped heat number
- EN 10204 3.1 mill test certificate
- Dimensional inspection report against the governing standard
- Packing list with heat numbers
- Third-party inspection on request
- Seaworthy wooden cases for export orders
Complete Fitting Dimensions
ASME B16.9 elbows, tees, reducers, caps, stub ends; B16.11 SW and threaded; NPT; weldolets; pipe schedules · A4 book · 26 pages
DownloadReference book · PDFComplete Piping Dimension Catalogue
Pipes, flanges, fittings, olets, bolting, gaskets, plates and structurals, P-T ratings, alloy chemistry and mechanicals · A4 book · 103 pages
DownloadFAQ
Threaded Fittings: common questions
What thread forms are available?
NPT taper threads to ASME B1.20.1 as standard, and BSPT taper threads to BS 21 / ISO 7-1 on request.
Which pipe schedule matches each threaded class?
Under ASME B16.11, Class 2000 threaded fittings correspond to Schedule 80 pipe, Class 3000 to Schedule 160 and Class 6000 to XXS.
When should threaded fittings not be used?
Piping codes restrict threaded joints in severe cyclic, crevice-corrosion and high-temperature service. In those cases socket weld or butt weld fittings are normally specified.
Need a size or grade not listed here?
Our engineering team manufactures against your specific drawing or datasheet, with dimensional sign-off before dispatch.
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