Swagelok SS-600-6-4 Stainless Steel Reducing Union, 3/8 in. x 1/4 in. Tube OD

Step your line from 3/8 in. down to 1/4 in. tubing without a single leak path. The Swagelok SS-600-6-4 reducing union joins two different tube sizes in one straight, gaugeable 316 stainless steel body. Swagelok's proven two-ferrule mechanical grip bites the tube, holds it tight, and seals it clean, so your instrument lines hold pressure the first time and every time after. You get consistent make-up with the gap inspection gauge, so your technicians know the fitting is pulled up right before the system ever sees pressure. Refineries, chemical plants, and analytical system builders across the Gulf Coast trust this connection for sample lines, transmitter hook-ups, and process tubing runs. Reuse it with confidence during rework and maintenance. When you need to change tube size mid-run and cannot afford a weak joint, this union does the job. Collins-Oliver stocks the Swagelok straights your crew reaches for. Call for your quote today.

Key Features

• Connects 3/8 in. to 1/4 in. tube OD in one straight union body
• 316 stainless steel construction for corrosive process and instrument service
• Swagelok two-ferrule mechanical grip for a leak-tight, gaugeable seal
• Gap inspection gauge confirms proper pull-up before pressurization
• Reusable and remakeable for maintenance and system rework
• Ideal for sample lines, transmitter hook-ups, and mixed-size tubing runs

Technical Specifications

• Part Number: SS-600-6-4
• Fitting Type: Reducing Union
• End Connection 1: 3/8 in. Swagelok tube fitting
• End Connection 2: 1/4 in. Swagelok tube fitting
• Body Material: 316 stainless steel
• Ferrule Material: 316 stainless steel (front and back ferrule)
• Nut Material: 316 stainless steel
• Sealing Design: Two-ferrule mechanical grip, gaugeable
• Cleaning And Packaging: Standard SC-10
• Pressure And Temperature Rating: Per tube OD and wall thickness. Call for your application.
• Pricing: Call for quote