Manually operated gate valves ZR (ZR 190x190, ZR 200x200, ZR 250x250U, ZR 300x300U, ZR 305x305SK, ZR 305x765, ZR 350x350SK, ZR 350x765SK, ZR 405x405SK, ZR 405x605SK, ZR 405x765SK, ZR 450x450A, ZR 450x605SK, ZR 450x650SK, ZR 450x765, ZR 500x250SK, ZR 505x505SK, ZR 710x710) are designed for use as a shut-off valve (opening and closing) at the outlet of bulk products from hoppers, gravity pipe systems or conveying systems at explosion and fire hazardous production facilities of storage, processing and use of vegetable raw materials.
It consists of: body, gate valve, toothed rack, shaft with pinion, hand wheel, limit switches (to be installed additionally).
The gate valve drive (opening and closing of the gate) is carried out in manual mode. Turning the hand wheel rotates the shaft of the gear mounted on rolling bearings on the gate valve body. The pinion provides progressive movement of the toothed rack on the gate connected with it. The size of the overlapped pro...
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