316 Stainless Double Ferrule Female Adapter, Tube Stub × NPT Female
316 Stainless Double Ferrule Female Adapter, Tube Stub × NPT Female in 316L stainless steel, forged. 24 part numbers, 1/8" to 1" tube; the size table gives the size on each end for every Indus part number.
Key features
- Fitting Form: Female Adapter, Tube Stub × NPT Female
- Ferrule System: double ferrule (front and back)
- End Connections: tube stub × NPT
- Size Range: 1/8" to 1" tube
- Pressure Rating: Rated to the tube: up to 12,000 psi on 316 stainless tubing, by O.D. and wall (manufacturer); see the table
- Fitting Form
- Female Adapter, Tube Stub × NPT Female
- Ferrule System
- double ferrule (front and back)
- End Connections
- tube stub × NPT
Product description
The 316 Stainless Double Ferrule Female Adapter, Tube Stub × NPT Female is an instrumentation tube fitting in 316L stainless steel, forged. Its tube end uses a nut with a front and a back ferrule that grip and seal on the outside of the tube; the manufacturer designs it to hold its seal through vibration, temperature swings and pressure cycling in instrument, sampling and control lines.
Construction
- Form: Female Adapter, Tube Stub × NPT Female
- Ferrule system: double (front and back) ferrule
- End 1: tube stub
- End 2: NPT female
- Material: 316L stainless steel, forged
- Bar stock: ASTM A479, ASTM A276
Ends and sealing
- tube stub: plain tube stub, made to slide into a tube-fitting end like a length of tube.
- NPT: taper pipe thread that seals on the thread flanks, with sealant or tape; ASME B1.20.1.
Sizes
24 part numbers, 1/8" to 1" tube. The Sizes & Part Numbers tab lists the size on each end for every one.
- End 1: 1/8" tube stub to 1" tube stub
- End 2: 1/8" NPT (1/8-27) to 1" NPT (1-11.5)
Pressure rating
A tube fitting is rated to the tube it is made up on. The manufacturer publishes working pressures for 316 stainless tubing by outside diameter and wall thickness, from 2,000 psi to 12,000 psi (psi, by tube O.D. in inches and wall in inches):
| Tube O.D. (in) \ wall (in) | 0.010 | 0.012 | 0.014 | 0.016 | 0.020 | 0.028 | 0.035 | 0.049 | 0.065 | 0.083 | 0.095 | 0.109 | 0.120 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/16 | 5600 | 6800 | 8100 | 9400 | 12000 | ||||||||
| 1/8 | 8500 | 10900 | |||||||||||
| 3/16 | 5400 | 7000 | 10200 | ||||||||||
| 1/4 | 4000 | 5100 | 7500 | 10200 | |||||||||
| 5/16 | 4000 | 5800 | 8000 | ||||||||||
| 3/8 | 3300 | 4800 | 6500 | ||||||||||
| 1/2 | 2600 | 3700 | 5100 | 6700 | |||||||||
| 5/8 | 2900 | 4000 | 5200 | 6000 | |||||||||
| 3/4 | 2400 | 3300 | 4200 | 4900 | 5800 | ||||||||
| 7/8 | 2000 | 2800 | 3600 | 4200 | 4800 | ||||||||
| 1 | 2400 | 3100 | 3600 | 4200 | 4700 |
How to order
Quote the Indus part number from the size table. If you only have the fitting, send the thread or tube size on each end and the material, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.
Identification
| Parameter | Value |
|---|---|
| Fitting Form | Female Adapter, Tube Stub × NPT Female |
| Ferrule System | double ferrule (front and back) |
Connections
| Parameter | Value |
|---|---|
| End Connections | tube stub × NPT |
Dimensions
| Parameter | Value |
|---|---|
| Size Range | 1/8" to 1" tube |
Performance
| Parameter | Value |
|---|---|
| Pressure Rating | Rated to the tube: up to 12,000 psi on 316 stainless tubing, by O.D. and wall (manufacturer); see the table |
Construction
| Parameter | Value |
|---|---|
| Material | 316L stainless steel, forged |
| Bar Stock Specification | ASTM A479, ASTM A276 |
Compliance
| Parameter | Value |
|---|---|
| Applicable Standards | ASME B1.20.1 |
Shipping & lead time
Sizes & part numbers
24 sizes| Indus part no. | End 1 | End 2 |
|---|---|---|
| IH-TF-AF-2-2N | 1/8" tube stub | 1/8" NPT (1/8-27) |
| IH-TF-AF-2-4N | 1/8" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-3-2N | 3/16" tube stub | 1/8" NPT (1/8-27) |
| IH-TF-AF-3-4N | 3/16" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-4-2N | 1/4" tube stub | 1/8" NPT (1/8-27) |
| IH-TF-AF-4-4N | 1/4" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-4-6N | 1/4" tube stub | 3/8" NPT (3/8-18) |
| IH-TF-AF-4-8N | 1/4" tube stub | 1/2" NPT (1/2-14) |
| IH-TF-AF-5-4N | 5/16" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-6-2N | 3/8" tube stub | 1/8" NPT (1/8-27) |
| IH-TF-AF-6-4N | 3/8" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-6-6N | 3/8" tube stub | 3/8" NPT (3/8-18) |
| IH-TF-AF-6-8N | 3/8" tube stub | 1/2" NPT (1/2-14) |
| IH-TF-AF-8-4N | 1/2" tube stub | 1/4" NPT (1/4-18) |
| IH-TF-AF-8-6N | 1/2" tube stub | 3/8" NPT (3/8-18) |
| IH-TF-AF-8-8N | 1/2" tube stub | 1/2" NPT (1/2-14) |
| IH-TF-AF-10-6N | 5/8" tube stub | 3/8" NPT (3/8-18) |
| IH-TF-AF-10-8N | 5/8" tube stub | 1/2" NPT (1/2-14) |
| IH-TF-AF-12-12N | 3/4" tube stub | 3/4" NPT (3/4-14) |
| IH-TF-AF-12-16N | 3/4" tube stub | 1" NPT (1-11.5) |
| IH-TF-AF-12-8N | 3/4" tube stub | 1/2" NPT (1/2-14) |
| IH-TF-AF-14-12N | 7/8" tube stub | 3/4" NPT (3/4-14) |
| IH-TF-AF-16-12N | 1" tube stub | 3/4" NPT (3/4-14) |
| IH-TF-AF-16-16N | 1" tube stub | 1" NPT (1-11.5) |
End 1 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. End 2 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. Ask us for the dimension drawing if you need it stamped.
What is it made from?▾
Which sizes are available?▾
What pressure is it rated to?▾
How does it seal?▾
What is the lead time?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- Presshülse Innengewinde NPT
- fr
- jupe de sertissage femelle NPT
- es
- casquillo de prensado hembra NPT
- it
- boccola di pressatura femmina NPT
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