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Product Specifications:
| Item | Reducing Union |
| Application | Gases, Liquids |
| Basic Material | Stainless Steel |
| Basic Pipe Fitting Material | Metal |
| Basic Pipe Fitting Shape | Union |
| Body Material | Stainless Steel |
| Compatible Fitting Brands | A LOK |
| Configuration Sub-type | Union Flareless |
| Configuration Type | Straight |
| Connection Type | A LOK |
| End 2 Type | Inch |
| Ferrule Type | Double |
| Fitting Material | Stainless Steel |
| Fitting Side A Connection Type | Compression |
| Fitting Side A Tube Outer Diameter | 5/16" |
| Fitting Side B Connection Type | Compression |
| Fitting Side B Tube Outer Diameter | 1/4" |
| Hex Size | 9/16" |
| Material | Stainless Steel |
| Material Grade | Grade 316 |
| Max. Operating Pressure | 8100 psi |
| Max. Pressure | 8100 psi |
| Maximum Operating Temperature | 649°C |
| Minimum Operating Temperature | 255°C |
| Overall Length | 1 21/32" |
| Product Datasheet | parker-5ru4-316.pdf |
| Resistance Properties | Corrosion Resistant, Gall Resistant |
| Series | A LOK Series |
| Specific Fitting Shape | Straight Reducing Connector |
| Specific Pipe Fitting Shape | Reducing Union |
| System Of Measurement | Imperial |
| Temp. Range | -425°F to +1200°F |
| Thread Size A | 1/2"-20 |
| Thread Size B | 7/16"-20 |
| Tube Fitting Material | Stainless Steel |
| Tube Fitting/adapter Type | Bite Type, A Lok Double Ferrule Flareless |
| Tube Outside Dia. | 5/16" |
| Tube Size | 0.312" x 0.25" |
| Tube Size | 5/16" |
Shipping Info:
| Ship weight (kg) | 0.06 |
| Ship height (cm) | 1.43 |
| Ship length (cm) | 4.21 |
| Ship width (cm) | 1.43 |
| HS code | 7307290000 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Tube Size | Hex Size | Body Material | Connection Type | Max. Pressure | Max. Operating Pressure | Temp. Range | Basic Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
12RU8-316 | 3/4" | 1 1/16" | - | - | - | - | -425°F to +1200°F | Metal | €193.81 | |
![]() |
6RU4-316 | 3/8" | 5/8" | - | - | - | - | -425°F to +1200°F | Metal | €82.79 | |
![]() |
8RU4-316 | 1/2" | 13/16" | - | - | - | - | -425°F to +1200°F | Metal | €122.66 | |
![]() |
8RU6-316 | 1/2" | 13/16" | - | - | - | - | -425°F to +1200°F | Metal | €117.45 | |
![]() |
16RU8-316 | 1" | 1 3/8" | Stainless Steel | - | - | - | -425°F to +1200°F | Metal | €401.61 | |
![]() |
6RU4-B | 3/8" | 5/8" | Brass | - | - | - | -40°F to +400°F | Metal | €31.74 | |
![]() |
8RU4-B | 1/2" | 13/16" | Brass | - | - | - | -40°F to +400°F | Metal | €76.36 |
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PARKER 5RU4-316 Reducing Union Stainless Steel A-lok 5/16 Inch x 1/ 4 Inch
€89.30 /unit
