Back Ferrule

Application Industries

Back Ferrule

The Back Ferrule is the rear gripping component of a twin-ferrule tube fitting system. It is designed to provide a strong mechanical grip on the tubing while supporting the front ferrule in creating a leak-tight seal. During installation, the back ferrule advances forward and applies controlled radial force onto the tube, ensuring excellent tube retention, vibration resistance, and reliable performance under high-pressure and demanding service conditions.

Manufactured from premium-grade stainless steel and other corrosion-resistant alloys, the back ferrule is precision engineered to provide consistent performance, easy installation, and long service life across a wide range of industrial applications.

Our Back Ferrules are engineered to deliver exceptional tube gripping strength, leak-proof sealing support, and long-term reliability in critical industrial applications. Manufactured using premium-quality materials with precision machining, they ensure consistent performance under high pressure, vibration, and extreme operating conditions. Their compatibility with standard twin-ferrule tube fitting systems makes them an ideal choice for instrumentation, hydraulic, and process control systems requiring safe, durable, and maintenance-friendly connections.

Specification Sheet

Technical Specifications

Grade
Material Grade
S.S. S.S. 304, S.S. 304L, S.S. 316, S.S. 316L, S.S. 310, S.S. 321, S.S. 347
DUPLEX S32205, S31803, S32304, S32202
MONEL MONEL 400, MONEL K-500
INCONEL INCONEL 600, INCONEL 625, INCONEL 800, INCONEL 825
HASTELLOY HASTELLOY C-276, HASTELLOY C-22
Size 24" to 96" or custom
Pressure Rating
  • 3000 PSI Instrumentation Fittings
  • 6000 PSI Instrumentation Fittings
  • 10000 PSI Instrumentation Fittings
  • 15000 PSI Instrumentation Fittings
  • 20000 PSI Instrumentation Fittings
Threads
  • NPT (ASME B1.20.1, MILL-P-71058)
  • ISO Parallel - BSPP (BS 2779, ISO 228, JIS B 0202)
  • ISO Tapered - BSPT (BS 21, ISO 7, JIS B 0203)
  • ISO / BSP (Gauge) (ISO 228, BS 2779)
Features
  • Easy to disconnect and retighten.
  • Available in wide configurations
  • Various Sizes
  • Best choice for instrumentations, process & control systems
  • Zero leakage even under tough working conditions
  • Gaugeable Bodies
  • Excellent gas-tight seal
  • Leak-proof joints capable of satisfying high pressure vacuum and vibration application
Specification ASTM/ASME A/SA A182, A193, A194, A167, A213, A240, A249, A269, A270, A276, A264, A271, A312, A313, A314, A320, A336, A358, A368, A376, A403, A851, A826, A831, A895, A908, A409, A430, A473, A478, A479, A492, A493, A582, A632, A666, A688, A774, A793, A480, A519, A554, A580, A511, A581, A778, A813, A814, A943, A965, A988, A924, A903 etc.