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Stepless® Screw Clamps
OETIKER Stepless® Screw Clamps are designed for extremely demanding
applications where reusability and the assurance of a leak-free seal
is not compromised while tightening. This unique design draws the
clamp band evenly around the circumference of the hose.
The narrowness of OETIKER constant tension clamps compared to other
clamps of this type, together with a low installation torque, combine to
produce a strong, uniform seal with the hose.
Already proven to seal medical grade tubing, thin-walled and/or hard
synthetic material, etc, this style can also be custom made for individual
applications.
Stepless® Screw Clamps
Self-Tensioning
OETIKER Stepless® Self-Tensioning Screw Clamps have been developed
specifically for motor-vehicle cooling systems (petrol / gasoline and
diesel engines), particularly for use in conjunction with EPDM and silicone
rubber hoses. They prevent coolant leakage, which may occur when
clamped parts cool after the engine has been turned off. The diameters
of components such as hoses, hose stems, etc. become smaller, and
this is the only type of clamp, which has been designed to compensate
for that reduction and prevent leaks.
Material
– 178 Steel strip, sleeve, Retaining segments (D-nuts):
Stainless Steel, Material no. 1.4301 / UNS S30400
Screw:
Stainless Steel, Material no. 1.4319 / UNS S30200
Spring:
17-7PH (aerospace quality)
Size range Width x Thickness
18.0 - 255.0 mm 9.0 x 0.6 mm
Installation
See Technical Data Sheet.
For detailed information, please request the Technical Data Sheet for this OETIKER
product group. Send your sample parts and all relevant information for your specific
application to OETIKER, and you will receive our recommendation for product type,
diameter, and method of installation.
Features
• 360° Stepless ® Design – no steps or gaps on inner circumference
• Specially formed strip edges reduce the risk of damage to
the part being clamped
• Reusable
• Multiple diameter settings
• Conforms to SAE J1508 Type SSPC
Self-tensioning
• Self-tensioning spring reacts to thermal cycle diameter changes
to maintain a strong, uniform seal
• Conforms to: SAE J1508 Type SSPC, TMC RP332 Type SSPC
The term “Stepless®” refers to the absence of steps or gaps on the
inner circumference of the clamp. The ingenious stepless design
provides uniform compression and a 360° seal.
Self-tensioning
OETIKER
Stepless® Screw Clamps
Product Group 178
Application Example
Cooling system connections
Application Example
Numerous applications in the
vehicle industry, particularly in
conjunction with EPDM and
silicone hoses