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| QZF-20 air valve |
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(1) functional purposes
QZF - 20 valve is dedicated to the control system of electric locomotive drivers brake emergency braking snort valve, it is mainly used for TSK42 type brake controller;
Main function is when the locomotive in an emergency situation, emergency brake quickly exhaust, achieve locomotive emergency braking. Product operation is flexible, quick response and large flow, stable and reliable work.
(2) the main technical indicators
a, the working medium temperature: - 50 ¡æ ~ + 70 ¡æ;
b, the rated working pressure: 375 kpa to 650 kpa.
c, work pressure range: 375 kpa to 1000 kpa.
d, operating force: 45 n or less;
e, range: 5 mm;
f, snort caliber: 20 mm or higher
g, mechanical life: under normal conditions of not less than 30000 times;
h, product weight: 1.5 Kg.
(3) the appearance and installation dimensions
a, appearance size: 110 + / - 0.5 mm; 95 + / - 0.5 mm;
b, installation size: 96 + / - 0.3 mm; 2-8.5 mm ¦µ;
c, the size of the interface: 2 - M36 x 2.
(4) material coding
Product material code: 6960003333
(5) application models
a, the main application system: TKS42 driver braking controller.
b, the main application models: 160 km passenger locomotives, god eight, eight iron, twelve, HXD1C models, etc.
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