316 Stainless Double Ferrule Bulkhead Union
316 Stainless Double Ferrule Bulkhead Union in 316L stainless steel, forged. 11 part numbers, 1/16" to 1" tube; the size table gives the size and the Swagelok equivalent for every Indus part number.
Key features
- Fitting Form: Bulkhead Union
- Ferrule System: double ferrule (front and back)
- End Connections: 2 × tube end (nut and ferrules)
- Size Range: 1/16" 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
- Bulkhead Union
- Ferrule System
- double ferrule (front and back)
- End Connections
- 2 × tube end (nut and ferrules)
Product description
The 316 Stainless Double Ferrule Bulkhead Union 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: Bulkhead Union
- Ferrule system: double (front and back) ferrule
- Ends: 2 tube end (nut and ferrules)s
- Material: 316L stainless steel, forged
- Bar stock: ASTM A479, ASTM A276
Ends and sealing
- Tube end: a nut with a front and a back ferrule that grip and seal on the outside of the tube. Fit it to tube of the listed outside diameter; the pressure the joint holds depends on the tube wall.
Sizes
11 part numbers, 1/16" to 1" tube. The Sizes & Part Numbers tab lists the size and the Swagelok equivalent for every one.
- End 1: 1/16" tube to 1" tube
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 11 of the 11 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 | Bulkhead Union |
| Ferrule System | double ferrule (front and back) |
Connections
| Parameter | Value |
|---|---|
| End Connections | 2 × tube end (nut and ferrules) |
Dimensions
| Parameter | Value |
|---|---|
| Size Range | 1/16" 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 |
Shipping & lead time
Sizes & part numbers
11 sizesEquivalent to Swagelok SS-#-61, Parker A-LOK #BC#-SS and SSP Duolok ISSD#BU. 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 | Parker A-LOK equivalent | SSP Duolok equivalent | Tube size |
|---|---|---|---|---|
| IH-TF-UB-1 | SS-100-61 | 1BC1-SS | ISSD1BU | 1/16" tube |
| IH-TF-UB-2 | SS-200-61 | 2BC2-SS | ISSD2BU | 1/8" tube |
| IH-TF-UB-3 | SS-300-61 | 3BC3-SS | ISSD3BU | 3/16" tube |
| IH-TF-UB-4 | SS-400-61 | 4BC4-SS | ISSD4BU | 1/4" tube |
| IH-TF-UB-5 | SS-500-61 | 5BC5-SS | ISSD5BU | 5/16" tube |
| IH-TF-UB-6 | SS-600-61 | 6BC6-SS | ISSD6BU | 3/8" tube |
| IH-TF-UB-8 | SS-810-61 | 8BC8-SS | ISSD8BU | 1/2" tube |
| IH-TF-UB-10 | SS-1010-61 | 10BC10-SS | ISSD10BU | 5/8" tube |
| IH-TF-UB-12 | SS-1210-61 | 12BC12-SS | ISSD12BU | 3/4" tube |
| IH-TF-UB-14 | SS-1410-61 | 14BC14-SS | ISSD14BU | 7/8" tube |
| IH-TF-UB-16 | SS-1610-61 | 16BC16-SS | ISSD16BU | 1" tube |
Indus Hydraulics is not affiliated with Parker A-LOK, SSP Duolok or Swagelok. Parker A-LOK, SSP Duolok or 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-#-61 | 11 |
| Parker A-LOK | #BC#-SS | 11 |
| SSP Duolok | ISSD#BU | 11 |
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?▾
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 Schottverschraubung
- fr
- jupe de sertissage traversée de cloison
- es
- casquillo de prensado pasamuros
- it
- boccola di pressatura passaparatia
Engineers viewing this also looked at
316 Stainless Double Ferrule Bulkhead Male Flare Connector, Tube × 37° JIC Male
316 Stainless Double Ferrule Union Cross
316 Stainless Double Ferrule Female Flare Connector, Tube × 37° JIC Female
316 Stainless Double Ferrule Bulkhead Reducer, Tube × Tube Stub
316 Stainless Double Ferrule Female Adapter, Tube Stub × NPT Female
316 Stainless Double Ferrule Female Adapter, Tube Stub × BSPP Female
