Tube Fittings

TEQLOK™ Double Ferrule Tube Fittings

TEQLOK™ is our double ferrule compression fitting, made to ASTM F1387 and rated to 6,000 psi. The front ferrule seals against the tube and the fitting body, while the back ferrule grips the tube and holds it against vibration and pressure surges.

Standard

ASTM F1387

Pressure rating

Up to 6,000 psi

Materials

Stainless steel, carbon steel, brass, nickel alloys

Sizes

1/8" to 1-1/2" OD
2 mm to 38 mm OD

Key features

A seal that holds through vibration, pressure cycling and temperature change

Ferrule hardening matched to the service, from standard railway duty to extreme pressure and sour gas

Approved by leading oil & gas operators and OEMs, by every Indian Railways coach and locomotive factory, and by major metro rolling stock builders

Every lot traceable to the mill heat number, with EN 10204 3.1 certificates

Used in

Technical specifications

Standard	ASTM F1387
Pressure rating	Up to 6,000 psi, depending on size and material
Temperature range	−40 °C to +350 °C, depending on material
Materials	Stainless steel 304, 304L, 316 and 316L Carbon steel Brass Alloy C-276, Inconel® and other nickel alloys for sour gas and other demanding service
Tube sizes	Fractional: 1/8" to 1-1/2" OD Metric: 2 mm to 38 mm OD
End connections	NPT, BSPP, BSPT, UNF and metric threads, plus flanged connections
Testing	Tested and certified to ASTM F1387 and BS 4368 Part 4 Vibration: BS EN 61373 · Corrosion: IEC 60068-2-52 For CNG and NGV serviceISO 15500-2:2016 · ISO 15500-19:2020 · ECE R110 · CSA/ANSI NGV 3.1.20

Configurations

Male connector

Female connector

Union

Union elbow

Union tee

Bulkhead union

Need a custom solution?

Send us your drawing or specification. Our engineers will work out the right part with you.

TEQLOK™ Double Ferrule Tube Fittings

Key features

Technical specifications

Configurations

Related products

Single Ferrule Tube Fittings (DIN 2353)

Seamless Tubes

Needle Valves

Need a custom solution?