RMA/RMA
Detailed
Due to the market hose pneumatic fittings internal material not
As a result of uneven quality, consumers are difficult to distinguish the merits of the joint from the appearance.
Why does the metal threading hose break?
What should be paid attention to to avoid joint accidents?
How to collect evidence once there is a problem?
Through what channel to protect their rights and interests?
Identification of quality can be obtained according to standards
To completely distinguish the root cause of the rupture of the pneumatic joint, the price of the non-standard quick screw joint card sleeve type joint is still more difficult.At present, the national bureau of technical quality supervision has issued the recommended standards of sealed water nozzle and hose standards, which are relatively perfect to the pneumatic joint and hose quality standards.In case of unreasonable rupture of the hose joint and other problems, consumers can go to the quality inspection department to test the twisting force of the hose joint and the tightness of the joint valve core and the strength of the joint material.If it can not meet the content of the standard, it is a quality problem, and the price of the welded joint is also a strong evidence to Sue.
Use and maintenance cannot be ignored
The length of time a metal threaded hose has been in use generally goes unnoticed.But for a long time use frequency and maintenance is not appropriate, will also be the joint fracture buried hidden trouble.Generally speaking, the service life of the joint is about 200,000 times, so it should be replaced in time after long-term use.Open and close gently, do not vigorously repeatedly rotating the hose pneumatic joint knob is also the key to maintenance.
The appearance of hose pneumatic joint is difficult to distinguish
In order to pursue profits, many manufacturers reduce the cost of non-standard stainless steel joints, secretly reduce the quality of the product material, or use the obsolete cast iron (easy to rust) or use zinc alloy (not anti-corrosion) as raw materials for metal hose pneumatic joint production.This can easily lead to the joint and hose quality is not up to standard, metal hose pneumatic joint strength and airtightness performance do not reach the standard, so in the actual production and life in the process of use problems.