Shanghai detected 33 batches of non-compliant locks

Shanghai detected 33 batches of non-compliant locks According to reports, in the near future, the Shanghai Administration for Industry and Commerce has bicycle locks, marble pinch locks, blade core insert locks, exterior locks, and marbles in the circulation areas of Xuhui, Putuo, Zhabei, Minhang, Pudong and Fengxian. Padlocks and other lock products have undergone quality monitoring. The inspection found that there were 33 batches of unqualified lock products. Among them, 14 batches had more than 2 indicators that were unqualified. The main manifestations were: number of teeth with different keys, anti-dial safety devices for locks, and locks. Outer length of the tongue, axial static load of the tongue, lateral static load of the tongue, insurance lock safety function, handle torque, radial static load of the handle, axial static tensile force of the handle and the like.

For example, Master has a model 9120TCOL case aluminum padlock, the main problem is the number of keys different teeth, and Shanghai Laoliang Hardware Plumbing Co., Ltd. production of a 831P / S confident brand boutique ball lock there are keys different teeth The number of flowers, the tongue protruding length and other issues.

It is understood that the safety of the lock is mainly manifested on the lock cylinder. The more the number of teeth in the key, the more complex the structure and the greater the difference, the lower the open rate of the lock. "Unreasonable keys with different numbers of teeth" and "anti-dial safety devices for locks" will lead to a decrease in the density of locks and a high rate of openness, which greatly increases the chance that the same key will open different locks at the same time. The "stick tongue extension length" is not up to the standard, which will cause the effective length of the lock tongue to enter the lock buckle, which is very easy to open by external force or technology to open.

NY250 Asbestos Rubber Gasket for Oil-Resistance 

Description:NY250 Asbestos Rubber Gasket for Oil-Resistance  as oil resisting Sealing Gasket materials,it is for widely range,and it made by  asbestos fiber with oil resistance synthetic rubber mixture,compression heating and molding it in thick paper fashion. 

Usage:NY250 Asbestos Rubber Gasket for Oil-Resistance is suitable for the mediums temperature under  250℃,pressure under 2.5MPa in water,saturated vapour,super hot vapour,gas and inert gases and alcohol  transmitted in the joints of facilities and pipelines.

TEMP:250℃(max) 

PRESS:2.5MPa(max) 

Dimension:1540x1360mm(recommend) 

4100×1500mm; 4500 x 1500mm;2000×1500mm; 

1500×1500mm;1500×1000mm;1270×1300mm; 3810×1300mm 

Thickness:  0.5~6.0mm


Technical data:

Lateral Tensile Strength MPa      â‰§11.0    

Compressibility %                        7~17  

Recovery%                                   ≧45  

Density g/cm³                           1.6~2.0  

Normal temperature softness   No cracking  

Oil Resistivity Test:

Immersion IRM903 Oil keeping 5h (149℃)

Lateral Tensile Strength(MPa)       â‰¥ 7.0  

Weigh gain rate(%)                  â‰¤30  

Immersion ASTM Fuel Oil B keeping 5h(21-30℃)

thickening rate (%)                 0~20  

Oil sealing properties under normal Temperature

Medium:RH-75 Avgas  

Pressure:   10Mpa  No leaking keeping 30 minutes  

Nitrogen Leakage Rate ML/(h•mm)≦300 

 

 Product photoes:

NY250 Asbestos Rubber Gasket for Oil-Resistance

  NY250 Asbestos Rubber Gasket for Oil-Resistance

Ny250 Asbestos Rubber Gasket For Oil-Resistance

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HEBEI HENGDA SEALING MATERIALS CO.,LTD. , http://www.hengdasealing.com

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