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30-09-2008, 12:40 AM
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المشاركة الأصلية كتبت بواسطة chongzivalve0809
Gate valve should be welded onto the line with the wedge in the fully closed position. Leaving the valve even partially open can cause distortion and leaking. Verify the drawings to make sure that the Gate valve has bi-directional sealing capability.. site:www.valvesupplier.net/forged-steel-gate-valves.htm