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Parker Tube Fitting, Reducing Union - A-LOK Series
*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.
Parker's two ferrule compression fittings, A-LOK® Reducing Union Tube Fittings are designed to provide reliable leak-free connections for instrumentation, process and control, and analyzer applications that specify a two ferrule tube fitting connection. Manufactured to the highest quality standards these tube fittings are available in a broad range of sizes, corrosion resistant materials and configurations.
As standard, Parker’s A-LOK® Reducing Union Tube Fittings are manufactured from heat code traceable 316 stainless steel. Other materials include 6Mo, Alloy 825, Alloy 625 and Alloy C-276.
The fittings are available for fractional pipe sizes from 1/8” through to 1” O.D., and for metric sizes from 3 mm through to 25 mm O.D.
Markets:
• Semiconductor/Microelectronics
• Chemical
• Petro-Chemical
• Transportation
• Power
• Nuclear
• Oil and Gas
• Research Labs
Features/Benefits:
• Wide range of Corrosion Resistant Alloys available
• EC79 Approved for Hydrogen Service
• Parker Suparcase™ surface treatment process for superior material hardening
• Hardened ferrules provide leak free connections
• Silver plated nuts provide gall resistance during makeup
Applications:
• Instrumentation Hook-up Systems
• Analytical Installations
• CNG / LNG Lines
• Hydrogen Service
• Offshore Control Panels
• Sensing Lines
Read More...As standard, Parker’s A-LOK® Reducing Union Tube Fittings are manufactured from heat code traceable 316 stainless steel. Other materials include 6Mo, Alloy 825, Alloy 625 and Alloy C-276.
The fittings are available for fractional pipe sizes from 1/8” through to 1” O.D., and for metric sizes from 3 mm through to 25 mm O.D.
Markets:
• Semiconductor/Microelectronics
• Chemical
• Petro-Chemical
• Transportation
• Power
• Nuclear
• Oil and Gas
• Research Labs
Features/Benefits:
• Wide range of Corrosion Resistant Alloys available
• EC79 Approved for Hydrogen Service
• Parker Suparcase™ surface treatment process for superior material hardening
• Hardened ferrules provide leak free connections
• Silver plated nuts provide gall resistance during makeup
Applications:
• Instrumentation Hook-up Systems
• Analytical Installations
• CNG / LNG Lines
• Hydrogen Service
• Offshore Control Panels
• Sensing Lines
| Action | SKU | Availability | Price | Shape | Operating Pressure | Technology | Division | Brand | Division | Configuration | Minimum Operating Temperature | Maximum Operating Temperature | For Fluid Type | Application | Industry | Product Style | Length | Options | Materials of Construction | Connection 1 Tube Outside Diameter | Connection 2 Tube Outside Diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4RU1-316 | Backordered | $21.51 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Fuels | CNG / LNG Lines | Nuclear | Reducing Union | 1.38 inch | N/A | Stainless Steel AISI 316 | 1/4" (O.D.) | 1/16" (O.D.) | |
| 4RU1-6MO | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Natural Gas (CNG) | Hydrogen Service | Power Generation | Reducing Union | 1.38 inch | N/A | 6Mo | 1/4" (O.D.) | 1/16" (O.D.) | |
| 4RU1-6MO-NC | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Natural Gas (CNG) | Hydrogen Service | Nuclear | Reducing Union | 1.38 inch | NACE | 6Mo | 1/4" (O.D.) | 1/16" (O.D.) | |
| 4RU2-316 | 1 in stock | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Hydrogen | Offshore Control Panels | Power Generation | Reducing Union | 1.52 inch | N/A | Stainless Steel AISI 316 | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-6MO | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Corrosive | Instrumentation | Microelectronics | Reducing Union | 1.52 inch | N/A | 6Mo | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-6MO-NSK | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Corrosive | Research Labs | Semiconductor | Reducing Union | 1.52 inch | NORSOK M650 | 6Mo | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-825 | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 426 °C | Steam | Offshore Control Panels | Nuclear | Reducing Union | 1.52 inch | N/A | Alloy 825 | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-B | Backordered | $9.36 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | - | - | Corrosive | Instrumentation | Semiconductor | Reducing Union | 1.52 inch | N/A | Brass | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-M | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 425 °C | Natural Gas (CNG) | Offshore Control Panels | Nuclear | Reducing Union | 1.52 inch | N/A | Monel 400 | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU2-NNR | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 535 °C | Natural Gas (CNG) | Instrumentation | Petrochemical | Reducing Union | 1.52 inch | N/A | Alloy C-276 | 1/4" (O.D.) | 1/8" (O.D.) | |
| 4RU3-316 | Backordered | $20.61 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Petroleum Oil | Offshore Control Panels | Nuclear | Reducing Union | 1.55 inch | N/A | Stainless Steel AISI 316 | 1/4" (O.D.) | 3/16" (O.D.) | |
| 5RU2-316 | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Corrosive | Research Labs | Chemical | Reducing Union | 1.58 inch | N/A | Stainless Steel AISI 316 | 5/16" (O.D.) | 1/8" (O.D.) | |
| 5RU4-316 | Backordered | $21.51 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Gases | Offshore Control Panels | Chemical | Reducing Union | 1.67 inch | N/A | Stainless Steel AISI 316 | 5/16" (O.D.) | 1/4" (O.D.) | |
| 5RU4-6MO | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Petroleum Oil | Hydrogen Service | Petrochemical | Reducing Union | 1.67 inch | N/A | 6Mo | 5/16" (O.D.) | 1/4" (O.D.) | |
| 5RU4-B | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | - | - | Corrosive | Sensing Lines | Research Labs | Reducing Union | 1.67 inch | N/A | Brass | 5/16" (O.D.) | 1/4" (O.D.) | |
| 6RU1-316 | Backordered | $33.66 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Natural Gas (CNG) | Offshore Control Panels | Oil & Gas | Reducing Union | 1.44 inch | N/A | Stainless Steel AISI 316 | 3/8" (O.D.) | 1/16" (O.D.) | |
| 6RU1-B | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | - | - | Corrosive | Instrumentation | Power Generation | Reducing Union | 1.44 inch | N/A | Brass | 3/8" (O.D.) | 1/16" (O.D.) | |
| 6RU2-316 | 2 in stock | $30.02 | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -255 °C | 649 °C | Natural Gas (CNG) | Hydrogen Service | Oil & Gas | Reducing Union | 1.61 inch | N/A | Stainless Steel AISI 316 | 3/8" (O.D.) | 1/8" (O.D.) | |
| 6RU2-6MO | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 371 °C | Hydrogen | Sensing Lines | Transportation | Reducing Union | 1.61 inch | N/A | 6Mo | 3/8" (O.D.) | 1/8" (O.D.) | |
| 6RU2-NNR | Backordered | POR | Straight | n/a | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Tube to Tube (Union) | -198 °C | 535 °C | Hydrogen | Analytical Installations | Transportation | Reducing Union | 1.61 inch | N/A | Alloy C-276 | 3/8" (O.D.) | 1/8" (O.D.) |
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