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Twin Ferrule Instrumentation Fittings

Twin Ferrule Union Elbow 90°

Stainless steel twin ferrule union elbow joining two instrumentation tubes at 90°. Change of direction without bending tube inside panels and in tight spaces.

  • AISI 316 / 316L
Technical summary
MaterialAISI 316 / 316L
Connection typeTube-to-tube 90°, twin-ferrule; male-threaded versions
SealingFront ferrule seals, back ferrule grips
Tube sizeInch or metric OD — subject to technical verification
ApplicationChange of direction inside panels and in tight spaces
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1-3 business days for stock items; 10-20 business days after technical approval for custom sizes.

Description

About the product

A twin ferrule union elbow is an instrumentation fitting that joins two tubes at a right angle. Each end has a nut, a front ferrule and a back ferrule; sealing and tube grip work on the same principle as the union. Male-threaded versions (NPT or BSP on the port end) allow the tube to exit directly from an equipment port at a 90° angle.

It is used in hydraulic control panels, around transmitter manifolds, in sampling lines in cramped cabinets, and in the measurement systems of chemical and food plants and offshore platforms.

  • Where tube bending is possible, bent tube reduces the number of connections; the elbow should be preferred where a bend radius will not fit.
  • Tube OD and fitting size (inch / metric) must match exactly.
  • Verify the thread standard (NPT, BSPT, BSPP) on the port end.

Installation note: Push the tube in until it bottoms against the shoulder in the body at both ends; a tube inserted at an angle or not fully inserted prevents the ferrules from seating correctly.

To clarify before ordering

  • Thread standard: BSPP / BSPT, NPT, UNF / JIC or metric
  • Tube or hose size, connection orientation
  • Working pressure and temperature
  • Fluid type and environment (seawater, chemical, food)
  • Sealing method: O-ring, sealing washer, cone seat
  • Quantity and required lead time
Technical support for fitting identification

Request sizes and technical drawing

We send this product's size options, thread standards and technical drawing on request. If the size you need is non-standard, we can manufacture it from a sample.

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  • Size and thread standard
  • Quantity and required lead time
  • Working pressure and fluid
  • Sample photo or technical drawing, if available

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