Ham-Let LET-LOK General Product Line Information

COMPRESSION TUBE FITTINGS

1/16” THROUGH 2” 2 MM THROUGH 50 MM

CONNECTORS

CONNECTORS

LET-LOK
HOW DOES
IT WORK?

LET-LOK® TUBE FITTINGS
DESCRIPTION

The HAM-LET GROUP has produced high quality tube and pipe
ttings in various materials for high pressure applications since its
establishment in 1950.

As a result of tremendous efforts in research and development during
the last ve decades, HAM-LET has gained an excellent reputation
as a leading manufacturer of high pressure instrumentation products.

The LET-LOK® range of connectors has been developed to ll the
rapidly increasing demand for tube ttings suitable for high pressure
use in environments such as petrochemical, uid, power, nuclear,
electronic, as well as other major industrial settings.

LET-LOK

withstand the persistent demands for high-performance tube ttings.
Each one has passed a stringent tolerance test for high pressure,
impulse, vibration, vacuum and temperature. These precision-

®

®

tube ttings have been carefully manufactured to

machined ttings are manufactured to exacting standards,

employing the most modern state-of-the-art computerized

automation. All LET-LOK® fittings are backed by

HAM-LET‘s commitment to the highest quality-control

standards and skilled craftsmanship.

The

LET-LOK

used both to seal and to grip tubing. The mechanical
advantage and geometry of this kind of tting produces
a leak-tight assembly.

To assemble, simply insert the tube into the complete
assembly until the tube bottoms-out against the shoulder of the
tting body(1). The two ferrules are driven forward between the nut
(4) and tting body using the mechanical force created by rotating
the nut clockwise. The back ferrule (3) is driven against the tapered
rear of the front ferrule (2) and the front ferrule is driven by force
into the tapered mouth of the body.
The rear ferrule is swaged radially inwards on the tube while lifting
the front ferrule out to form a full-faced seal on the tapered surface
of the body.

The 11/4 turn of the nut from the hand tight position assures
consistent drive of the sealing members. This ensures an effective
seal against high pressure as well as ultra high vacuum conditions.

®

tube tting is a mechanism

4

Tube

1

3

2

1

. BODY 2. FRONT FERRULE 3. BACK FERRULE 4. NUT

8

TUBE FITTINGS CONSISTS OF FOUR PARTS:

COMPRESSION TUBE FITTINGS