1/4 in. Tube O.D. x 1/8 in. FNPT - Female Branch Tee - Double Ferrule - 316 Stainless Steel Compression Tube Fitting - SCI

Instrumentation fittings meet ANSI B31.1, ANSI B31.3, ASME Sec. VIII
• Instrumentation fitting wall thickness conform to SAE-J-514
• NPT pipe threads conform to ASME B1.20.1
• Straight threads conform to ANSI B1.1 (unified threads clause 2A & 2B)
• Instrumentation fittings made from material that conforms to ASTM A276 316 SS (barstock)
and ASTM A-182 G F 316 (forgings)
• Instrumentation fitting ferrules conform to ASTM A276 316 SS (min hardness Rockwell B-90)
• Instrumentation fitting ferrules composed of 316 SS
• Nuts are silver plated to 5 microns for anti-galling

• The following tests are carried out at various stages of manufacture and are in accordance
with BS-4368-Part-IV:
• Visual / dimensional check
• Pneumatic pressure test at 2,000 psi
• Hydraulic leak test at 10,000 psi
• Pressure impulse & vibration test at vibration frequency of 23-47 Hz with 5 mm amplitude,
and 30-40 CPM for a minimum of 20 million cycles
• Minimum burst pressure test at a steady rate of 3,000 PSI per min, up to 15,000 psi
• Make-and-break test hydraulically tested at 6,000 psi and 10,000 psi
• Temperature cycling test: temperature increased from ambient to 320° C held for 60 min
reduced to ambient, then hydraulically at 10,000 psi
• Vacuum test at 700 mbar vacuum, deterioration in vacuum not to exceed 20 mbar in 20 mins.
• Helium leakage test at 15 PSI, leakage not to exceed 2.0 x 10-5 STD cc/sec

Tube O.D. x Female NPT Threads
Connects fractional compression tube end to male NPT thread

11,000 psi (757 bar) @ 100°F(38°C)

325°F(-198°C) to 1200°F(648°C)

OD 1/16 - 2 inch, OD 2mm - 38mm

Double Ferrule Compression Tube Fittings

Many tube fittings have a male or female pipe end. These ends sometimes have a lower pressure rating than the pressure rating of the tube fitting end.
The ratings provided are based on ASME B31.3-1999.
Female pipe ends have lower ratings than male pipe end in a given size due to the inner and outer diameters of the female threads being larger than those of the male pipe ends.

* These tube fittings intermix and interchange with all major brands of compression tube fittings.
* Fittings are from import.