
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 ≧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) ≥ 7.0
Weigh gain rate(%) ≤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
Butterfly Lug Type,Ny250 Asbestos Rubber Gasket For Oil-Resistance,Oil-Resisting Asbestos Sheet,Asbestos Rubber Gasket For Oil
HEBEI HENGDA SEALING MATERIALS CO.,LTD. , http://www.hengdasealing.com