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Parker Tube Fitting, Bulkhead 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® Bulkhead 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® Bulkhead 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 1/16” 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® Bulkhead 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 1/16” 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 | Technology | Division | Brand | Division | For Fluid Type | Configuration | Application | Minimum Operating Temperature | Maximum Operating Temperature | Product Style | Industry | Length | Operating Pressure | Options | Specifications Met | Materials of Construction | Tube Outside Diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4BC2-NNR | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Hydrogen | Tube to Tube (Union) | Offshore Control Panels | -198 °C | 535 °C | Bulkhead Union | Microelectronics | 2.18 inch | 4000 to 10300 psi | N/A | N/A | Alloy C-276 | 1/4 to 1/8" (O.D.) | |
| 4BC3-316 | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Oil | Tube to Tube (Union) | Instrumentation | -255 °C | 649 °C | Bulkhead Union | Semiconductor | - | 4000 to 10300 psi | N/A | N/A | Stainless Steel AISI 316 | 1/4 to 3/16" (O.D.) | |
| 4BC4-0.5MMOR-316L | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Natural Gas (CNG) | Tube to Tube (Union) | Analytical Installations | - | - | Bulkhead Union | Chemical | 2.27 inch | 4000 to 10300 psi | 0.5 mm Orifice | N/A | Stainless Steel AISI 316L | 1/4" (O.D.) | |
| 4BC4-316 | 134 in stock | $27.27 | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Oil | Tube to Tube (Union) | Sensing Lines | -255 °C | 649 °C | Bulkhead Union | Petrochemical | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Stainless Steel AISI 316 | 1/4" (O.D.) | |
| 4BC4-316-NC | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Liquid | Tube to Tube (Union) | CNG / LNG Lines | -255 °C | 649 °C | Bulkhead Union | Semiconductor | 2.27 inch | 4000 to 10300 psi | N/A | NACE | Stainless Steel AISI 316 | 1/4" (O.D.) | |
| 4BC4-6MO | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Gases | Tube to Tube (Union) | Offshore Control Panels | -198 °C | 371 °C | Bulkhead Union | Petrochemical | 2.27 inch | 4000 to 10300 psi | N/A | N/A | 6Mo | 1/4" (O.D.) | |
| 4BC4-6MO-NC | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Oil | Tube to Tube (Union) | Analytical Installations | -198 °C | 371 °C | Bulkhead Union | Petrochemical | 2.27 inch | 4000 to 10300 psi | N/A | NACE | 6Mo | 1/4" (O.D.) | |
| 4BC4-6MO-NC-NSK | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Natural Gas (CNG) | Tube to Tube (Union) | Sensing Lines | -198 °C | 371 °C | Bulkhead Union | Chemical | 2.27 inch | 4000 to 10300 psi | N/A | NACE | 6Mo | 1/4" (O.D.) | |
| 4BC4-6MO-NSK | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Fuels | Tube to Tube (Union) | CNG / LNG Lines | -198 °C | 371 °C | Bulkhead Union | Semiconductor | 2.27 inch | 4000 to 10300 psi | N/A | NORSOK M650 | 6Mo | 1/4" (O.D.) | |
| 4BC4-825 | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Natural Gas (CNG) | Tube to Tube (Union) | Instrumentation | -198 °C | 426 °C | Bulkhead Union | Transportation | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Alloy 825 | 1/4" (O.D.) | |
| 4BC4-B | 1 in stock | $13.28 | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Gases | Tube to Tube (Union) | Offshore Control Panels | - | - | Bulkhead Union | Transportation | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Brass | 1/4" (O.D.) | |
| 4BC4-IIY | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Oil | Tube to Tube (Union) | Hydrogen Service | -198 °C | 649 °C | Bulkhead Union | Petrochemical | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Alloy 625 | 1/4" (O.D.) | |
| 4BC4-IIY-NC | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Natural Gas (CNG) | Tube to Tube (Union) | Analytical Installations | -198 °C | 649 °C | Bulkhead Union | Chemical | 2.27 inch | 4000 to 10300 psi | N/A | NACE | Alloy 625 | 1/4" (O.D.) | |
| 4BC4-M | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Hydrogen | Tube to Tube (Union) | CNG / LNG Lines | -198 °C | 425 °C | Bulkhead Union | Microelectronics | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Monel 400 | 1/4" (O.D.) | |
| 4BC4-M-NC | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Fuels | Tube to Tube (Union) | Hydrogen Service | -198 °C | 425 °C | Bulkhead Union | Transportation | 2.27 inch | 4000 to 10300 psi | N/A | NACE | Monel 400 | 1/4" (O.D.) | |
| 4BC4-NNR | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Liquid | Tube to Tube (Union) | Sensing Lines | -198 °C | 535 °C | Bulkhead Union | Microelectronics | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Alloy C-276 | 1/4" (O.D.) | |
| 4BC4-TTZ | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Hydrogen | Tube to Tube (Union) | Offshore Control Panels | -59 °C | 315 °C | Bulkhead Union | Microelectronics | 2.27 inch | 4000 to 10300 psi | N/A | N/A | Titanium | 1/4" (O.D.) | |
| 4BC4-TTZ-NC | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Liquid | Tube to Tube (Union) | Hydrogen Service | -59 °C | 315 °C | Bulkhead Union | Transportation | 2.27 inch | 4000 to 10300 psi | N/A | NACE | Titanium | 1/4" (O.D.) | |
| 4BC4-TTZ-NSK | Backordered | POR | Straight | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Liquid | Tube to Tube (Union) | Hydrogen Service | -59 °C | 315 °C | Bulkhead Union | Semiconductor | 2.27 inch | 4000 to 10300 psi | N/A | NORSOK M650 | Titanium | 1/4" (O.D.) | |
| 4BCM6-316 | Backordered | POR | - | Process Control | Instrumentation Products Division | A-LOK | Instrumentation Products Division | Fuels | Tube to Tube (Union) | CNG / LNG Lines | -255 °C | 649 °C | Bulkhead Union | Chemical | - | 4000 to 10300 psi | N/A | N/A | Stainless Steel AISI 316 | 1/4 to 3/8" (O.D.) |
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