316 Stainless Double Ferrule Vent Protector, NPT Male
316 Stainless Double Ferrule Vent Protector, NPT Male in 316L stainless steel, forged. 4 part numbers, 1/4" to 3/4"; the size table gives the size, dimensions in millimetres and the Swagelok equivalent for every Indus part number.
Key features
- Fitting Form: Vent Protector, NPT Male
- Ferrule System: double ferrule (front and back)
- End Connections: NPT
- Size Range: 1/4" to 3/4"
- 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
- Vent Protector, NPT Male
- Ferrule System
- double ferrule (front and back)
- End Connections
- NPT
Product description
The 316 Stainless Double Ferrule Vent Protector, NPT Male 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: Vent Protector, NPT Male
- Ferrule system: double (front and back) ferrule
- End 1: NPT male
- Material: 316L stainless steel, forged
- Bar stock: ASTM A479, ASTM A276
Ends and sealing
- NPT: taper pipe thread that seals on the thread flanks, with sealant or tape; ASME B1.20.1.
Sizes
4 part numbers, 1/4" to 3/4". The Sizes & Part Numbers tab lists the size, dimensions in millimetres and the Swagelok equivalent for every one.
- End 1: 1/4" NPT (1/4-18) to 3/4" NPT (3/4-14)
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 |
Swagelok equivalents
For 4 of the 4 sizes the size table gives the Swagelok part number the manufacturer cross-references, so a part number taken off existing equipment can be matched to the Indus part number.
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 | Vent Protector, NPT Male |
| Ferrule System | double ferrule (front and back) |
Connections
| Parameter | Value |
|---|---|
| End Connections | NPT |
Dimensions
| Parameter | Value |
|---|---|
| Size Range | 1/4" to 3/4" |
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
4 sizesEquivalent to Swagelok SS-MD-12 / SS-MD-4. Every size below prints its equivalent part number beside ours — quote either. Equivalent tube fittings do the same job in the same size, but never mix nuts, ferrules or bodies from two makers in one joint.
| Indus part no. | Swagelok equivalent | End connection | L (mm) | L1 (mm) |
|---|---|---|---|---|
| IH-TF-SVP-4N | SS-MD-4 | 1/4" NPT (1/4-18) | 503.2 | 361.2 |
| IH-TF-SVP-6N | SS-MD-6 | 3/8" NPT (3/8-18) | 522.5 | 361.2 |
| IH-TF-SVP-8N | SS-MD-8 | 1/2" NPT (1/2-14) | 664.5 | 483.9 |
| IH-TF-SVP-12N | SS-MD-12 | 3/4" NPT (3/4-14) | 683.8 | 483.9 |
L — Dimension L on the manufacturer dimension drawing. L1 — Dimension L1 on the manufacturer dimension drawing. Ask us for the dimension drawing if you need it stamped.
Indus Hydraulics is not affiliated with Swagelok. Swagelok part numbers are shown for cross-reference only, so you can order from an existing bill of materials.
This listing is matched size by size to the series below. The size table gives the exact equivalent part number for every Indus part number.
| Maker / standard | Series | Sizes matched |
|---|---|---|
| Swagelok | SS-MD-12, SS-MD-4, SS-MD-6, SS-MD-8 | 4 |
What is it made from?▾
Which sizes are available?▾
What pressure is it rated to?▾
How does it seal?▾
Can I match a Swagelok part number?▾
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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 Außengewinde NPT
- fr
- jupe de sertissage mâle NPT
- es
- casquillo de prensado macho NPT
- it
- boccola di pressatura maschio NPT
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