Nut of KK Best does not rotate together with pipe
Nut does not loosen due to vibration
Nut also does not loosen due to earthquake shaking
Tensile strength : Su pipe expanded area < Nut
Structure and Specification
About strength
Lock Ring mechanism for secure strength.
Resistance to detachment
We are evaluating its resistance to detachment during pre-insulation and insulation work to ensure it does not come off easily.
(We have confirmed no detachment due to vibration or pulsation by conducting vibration tests and repeated internal pressure tests.)
Rotational torque resistance
While the fitting is designed to have minimal rotational torque on the pipe, we evaluate its torque resistance performance to account for unexpected events.
Condition during maximum torque
Overriding of claw section between the main body and the nut.
After overriding, the lock ring becomes non-detachable and non-reusable, but it does not affect the basic performance (no leak, no pull-out) of the fitting.
Long term liability
Nylon(PA66)
Engineering plastics with excellent heat resistance, impact resistance, wear resistance, and chemical resistance.
A well-balanced material used in a wide range of applications, from automobiles to clothing and fishing lines.
Tested for chemical resistance (Thread sealant, PVC adhesive, plasticizer)
Undergoing weather resistance testing (Metal halide lamp model)
Non-reusable
Designed not to be removed without destruction.
Waterproofing with long-term reliability using O-rings
Feature and Structure
Water entering from gaps of the pipe is sealed by O-rings.
By placing a double layer protective ring with heat-resistant polyethylene on the water-contact side of the O-ring, we enhance safety and durability.
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Proven Performance
This structure has a track record of approximately 7 years, and it has been confirmed that there is no degradation or deterioration.1 -
Compression Test
It has been confirmed through comparative performance tests with conventional products, such as compression endurance tests in chlorine water.2 -
Degradation Test
No problem found in the accelerated degradation test using the actual SAS322.3 -
Water Flow Test
In our proprietary flow test using high-temperature and high-chlorine water, there were no problems with a test equivalent to 40 years of use.4
