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Original Factory Oil and Gas Pipeline Valves - PV48 vacuum breaking valve – Convista

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Original Factory Oil and Gas Pipeline Valves - PV48 vacuum breaking valve – Convista Detail:


Specifications

Type: nuclear power vacuum breaking valve

Model: ZKPHF41F-150 150Lb, ZKPHF21F-300 300Lb

Nominal Diameter: DN 20-50

The product is used for AP1000 unit as equipment negative pressure suction to prevent its excessive low pressure from damaging the equipment.

1.With spring type vacuum decompression, the vacuum breaking valve features easy constant pressure and repairing and convenient installation. The valve is designed as per pressure level and its design pressure is bigger than its maximum working pressure under operation environment temperature. The valve core is opening and closing part of the valve and O-type seal ring is installed in groove of the valve core to constitute sealing part of the valve core. When the valve seals, O-type seal ring contacts sealing surface of the valve seat; when valve jumps and discharges, O-type seal ring leaves sealing surface of the valve seat. When the valve core blows back, spring stretches and opening and closing part goes up along guiding hole of the valve seat; when the valve core opens, spring compresses and opening and closing part goes down along guiding hole of the valve seat.

2.The vacuum breaking valve, an automatic valve, requires no additional drive when it is put into operation. At normal working state, the joint force of spring and medium exerted on valve disc presses the valve disc towards the valve seat to make the sealing surface cling and seal; when medium pressure drops to specified vacuum value (i.e. negative pressure up to setting pressure), spring is compressed, valve disc leaves valve seat, external air enters and system pressure boosts; when system pressure rises to working value, the spring pulls the valve disc towards the valve seat and sealing surface clings again to return to normal working state.


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To meet the customers' over-expected gratification , we have our robust crew to offer our best over-all support which includes marketing, income, coming up with, production, excellent managing, packing, warehousing and logistics for Original Factory Oil and Gas Pipeline Valves - PV48 vacuum breaking valve – Convista, The product will supply to all over the world, such as: Oman, Maldives, Greece, To let customers be more confident in us and get the most comfortable service, we run our company with honesty, sincerity and best quality . We firmly believe that it is our pleasure to help customers to run their business more successfully, and that our professional advice and service can lead to more suitable choice for the customers.
  • This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
    5 Stars By Eileen from Madras - 2018.06.09 12:42
    Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
    5 Stars By Adela from Mombasa - 2017.04.18 16:45

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