Woo-Jeong Mechatronics

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Establishment

Product trust pa

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1. Leak Test (Should have no leakage in case when nitrogen(30kgf/㎠) are pressurized)	2. Corrosion Test_prohesion (Should have no defects like cracks on the surface)	3. Environment
		Cold Resistance Test (Leak test after leaving under 120℃ for 96hr )	Heat Test (Leak test after leaving under 30℃ for 96hr)	Heat Cycle Test (Leak test after leaving 40℃(12hr) ~110℃(12hr) for 96hr)
No problem	No problem	No problem	No problem	No problem
4. Piping Deviation Test (High pressure: 66 kgf/cm2 ↑) (Low pressure: 39 kgf/cm2 ↑)	5. Breakaway Torque Test
No problem	No problem

Test Method	Leak test for two minutes with nitrogen(30㎏f/㎠)
Spec	Should have no leakage in case when nitrogen(30kgf/㎠) is pressurized
Evaluation Results	No leakage

		Sample				Picture
		1/4”	3/8”	1/2”	5/8”	Picture
Coated Pipe	#1	No leakage	No leakage	No leakage	No leakage
	#2	No leakage	No leakage	No leakage	No leakage
	#3	No leakage	No leakage	No leakage	No leakage
	#4	No leakage	No leakage	No leakage	No leakage
Brass Pipe	#1	No leakage	No leakage	No leakage	No leakage
	#2	No leakage	No leakage	No leakage	No leakage
	#3	No leakage	No leakage	No leakage	No leakage
	#4	No leakage	No leakage	No leakage	No leakage

Test Method	Surface test and leak test after leaving in condition such as NaCl 0.05%, (NH4)2SO4 0.35% (repetition of fog 25℃ 1hr ,dry 35℃ 1hr )
Spec	Should have no defects like cracks on the surface. Satisfying the standards of leak test
Evaluation Results	3/8” - No problem

3/8"	Picture	Results
start		-
480hr		- Leak Test: No problem - Sub-parts: No problem

Results of 3/8” Prohesion Test for 480hr: No problem

In case of 1/4”, 1/2”, 5/8”, Grip-collect has the same form with 3/8” so that the results above can be substituted.

Test	Heat Test	Cold Resistance Test	Heat Environment Test
Methods	Leak test after leaving under 120℃ for 96hr	Leak test after leaving under -30℃ for 96hr	Leak test after leaving -40℃(12hr) ~110℃(12hr) for 96hr
Results	No leakage	No leakage	No leakage
SPL	- Valve for each size + AL pipe(4EA) - Valve for each size + Cu pipe(4EA)	- Valve for each size+ AL pipe(4EA) - Valve for each size + Cu pip(4EA)	- Valve for each size+ AL pipe(4EA) - Valve for each size + Cu pipe(4EA)
Pic

Test Method	Measuring pressure when the clamped part is deviated by applying water pressure
Spec	Refer to the below
Evaluation Results	No problem

Deviation Test SPEC		Taking high pressure as the standard pressure among pressure during operation, designed pressure and pressure within the standard pipe when it is off Normal: 3 times of the standard pressure ↑ / Abnormal: twice of the standard pressure ↑
Normal Clamping	Normally clamped condition	Grip ring + Guard + 2 O-Ring + Grip collect
	Normally clamped test SPEC	Should be broken away in more than three times of the designed pressure(42.3 kgf/cm2). → 42.3 kgf/cm2 × 3 = 126.9 kgf/cm2 ↑
	Normally clamped test SPEC	1/4"	3/8"	1/2"	5/8"
	Normally clamped test results	Pipe burst in 235kgf/cm2	Pipe burst in 197kgf/cm2	Pipe burst in 160kgf/cm2	Pipe deviated in 148kgf/cm2
	Normally clamped test results	SPEC satisfied	SPEC satisfied	SPEC satisfied	SPEC satisfied

Deviation Test SPEC		Taking high pressure as the standard pressure among pressure during operation or pressure within the standard pipe when it is off Normal: Three times of the standard pressure↑ / Abnormal: Twice of the standard pressure ↑
Abnormal Clamping	Abnormally clamped condition	Grip ring deleted, 2 Guard + 2 O-Ring + Grip collect
	Abnormally clamped test SPEC	High Pressure: 66kgf/cm2 – More than twice of the operated pressure standard(33kgf/cm2 ) Low pressure: 38kgf/cm2 – More than twice of the usual pressure standard(19kgf/cm2 )
		High pressure: 66 kgf/cm2 ↑	Low pressure: 39 kgf/cm2 ↑
		1/4"	3/8"	1/2"	5/8"
	Abnormally clamped test results	Pipe deviated in 177 kgf/cm2	Pipe deviated in 88~98 kgf/cm2	Pipe deviated in 67~77 kgf/cm2	Pipe deviated in 51.4 kgf/cm2
	Abnormally clamped test results	SPEC satisfied	SPEC satisfied	SPEC satisfied	SPEC satisfied

Test Method	Measuring breakaway torque by using torque ranch
Spec	Should have no appearance problems(damage and abrasion of thread) when breaking up after clamping in twice of the rated torque
Evaluation Results	No problem

		1/4"	Picture		3/8"	Picture
		1/4"	Before test	After test	3/8"	Before test	After test
Smart Link	#1	No problem (Side deformation in 1000 kgfㆍcm )			No problem (Side deformation in 1350 kgfㆍcm)
	#2	No problem (Side deformation in 1150 kgfㆍcm)			No problem (Side deformation in 1400kgfㆍcm)
	#3	No problem (Side deformation in 1200 kgfㆍcm)			No problem (Side deformation in 1500kgfㆍcm)

		5/8"	Picture			2/1"
		5/8"	Before test	After test		2/1"
Smart Link	#1	No problem (No deformation till 2000 kgfㆍcm)			Smart Link	No problem (No deformation till 1400 kgfㆍcm)
	#2	No problem (Side deformation in 2000 kgfㆍcm)				Before test	After test
	#3	No problem (Side deformation in 1900 kgfㆍcm)