316 Stainless Double Ferrule O-Seal Male Connector, Tube × NPT Male (Vacuum)

The 316 Stainless Double Ferrule O-Seal Male Connector, Tube × NPT Male (Vacuum) is an instrumentation tube fitting in 316L stainless steel, forged. Its tube end uses a nut with a front and a back ferrule that grip and seal on the outside of the tube; the manufacturer designs it to hold its seal through vibration, temperature swings and pressure cycling in instrument, sampling and control lines.

Construction

• Form: O-Seal Male Connector, Tube × NPT Male (Vacuum)
• Ferrule system: double (front and back) ferrule
• End 1: tube end (nut and ferrules)
• End 2: NPT male
• Material: 316L stainless steel, forged
• Bar stock: ASTM A479, ASTM A276

Ends and sealing

• Tube end: a nut with a front and a back ferrule that grip and seal on the outside of the tube. Fit it to tube of the listed outside diameter; the pressure the joint holds depends on the tube wall.
• NPT: taper pipe thread that seals on the thread flanks, with sealant or tape; ASME B1.20.1.

Sizes

7 part numbers, 1/8" to 1/2" tube. The Sizes & Part Numbers tab lists the size on each end for every one.

• End 1: 1/8" tube to 1/2" tube
• End 2: 1/8" NPT (1/8-27) to 1/2" NPT (1/2-14)

Pressure rating

The manufacturer publishes no pressure rating for this family. Tell us the working pressure your line sees and we will confirm the fitting is rated for it before you order.

How to order

Quote the Indus part number from the size table. If you only have the fitting, send the thread or tube size on each end and the material, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.