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Product Specifications:
| Item | Compression Fitting |
| Application | Compressed Natural Gas, Fuels, Gases, Hydrogen, Liquids, Oils, Petroleum Oil, Steam |
| Basic Material | Metal |
| Basic Pipe Fitting Material | Metal |
| Basic Pipe Fitting Shape | Union |
| Body Material | Stainless Steel |
| Compatible Fitting Brands | A LOK |
| Compatible Tube Material | Stainless Steel |
| Compression Thread Size | 7/16"-20 |
| Configuration Sub-type | Bulkhead Union Flareless |
| Configuration Type | Straight |
| Connection Size | 1/4" |
| End 2 Type | Inch |
| Ferrule Type | Double |
| Fitting Material | Stainless Steel |
| Fitting Side A Connection Type | Compression |
| Fitting Side A Tube Outer Diameter | 1/4" |
| Fitting Side B Connection Type | Compression |
| Fitting Side B Tube Outer Diameter | 1/4" |
| Grade | Grade 316 |
| Hex Size | 5/8" |
| Material | Stainless Steel |
| Material Grade | Grade 316 |
| Max. Operating Pressure | 10300 psi |
| Maximum Operating Temperature | 649°C |
| Minimum Operating Temperature | 255°C |
| Overall Length | 2 9/32" |
| Product Datasheet | parker-4bc4-316.pdf |
| Resistance Properties | Corrosion Resistant, Gall Resistant |
| Series | A LOK Series |
| Shape | Bulkhead Union |
| Specific Fitting Shape | Straight Bulkhead Union |
| Specific Pipe Fitting Shape | Bulkhead Union |
| Style | Tube To Tube Union |
| System Of Measurement | Imperial |
| Temp. Range | -425°F to +1200°F |
| Thread Size | 7/16"-20 |
| Thread Size A | 7/16"-20 |
| Thread Size B | 7/16"-20 |
| Tube Fitting/adapter Type | Bite Type, A Lok Double Ferrule Flareless |
| Tube Outside Dia. | 1/4" |
| Tube Size | 1/4" |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 1.59 |
| Ship length (cm) | 5.79 |
| Ship width (cm) | 1.59 |
| HS code | 7307225000 |
| Country of Origin | US |
Product Details:
- A-LOK compression tube fitting providing a leak-free connection for high pressure & vacuum in liquid or gas applications
- 316 stainless steel design allows easy use with 304, 316 or 316L stainless steel tubings
- Features double-ferrule design for providing a tight seal on tube & body, even after continuous reassembly
- ASME-compliance and 4:1 safety factor ensure safe operation
Documentation:
Product Variants
| Product | Model | Body Material | Hex Size | Max. Operating Pressure | Tube Size | Connection Type | Max. Pressure | Pipe Size | Temp. Range | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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6BC6-316 | Stainless Steel | 3/4" | 6600 psi | 3/8" | - | - | - | -425°F to +1200°F | €124.51 | |
![]() |
8BC8-316 | Stainless Steel | 15/16" | 6700 psi | - | Two Ferrule | - | - | -425°F to +1200°F | €163.61 | |
![]() |
4BC4-B | Brass | 5/8" | 10300 psi | - | - | - | - | -40°F to +400°F | €34.85 | |
![]() |
6BC6-B | Brass | 3/4" | 6600 psi | 3/8" | - | - | - | -40°F to +400°F | €46.89 | |
![]() |
10BC10-B | Brass | 1 1/16" | 6100 psi | 5/8" | - | - | - | -40°F to +400°F | €149.68 | |
![]() |
4BC4-S | Carbon Steel | 5/8" | 10300 psi | 1/4" | Compression | 8000 psi | - | -20°F to +800°F | €56.82 | |
![]() |
6BC6-S | Carbon Steel | 3/4" | 6600 psi | 3/8" | Compression | 7600 psi | - | -20°F to +800°F | €64.35 |
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PARKER 4BC4-316 Compression Fitting, Two Ferrule Compression, 1/4 Inch Size, SS
€84.12 /unit
