GY801B1 Internal Vent Valve for Manhole

Technical Specification 1. Material: Aluminum alloy 2. Outlet opening pressure: +6~8KPa 3. Inlet opening pressure: -2~-3KPa 4. Flow rate: 600L/Min P/V vent valve is stalled on the top of the Tanker to ensure the safety when transportation. The design is according to the GB/T18564.1-2006. High sensitivity, when there is pressure differences inside and outside the …

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