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Address:NO.1-1Qianjie Street High-tech Zone Longwan District Wenzhou City Zhejiang
TEL: +86-577-56662028
WebsiteThis product can be installed in the normal non-negative pressure system, or installed in the equipment and pipeline system where the negative pressure value is higher than the negative pressure value of the vacuum negative pressure safety valve, when the discharge valve of the container and the system is not opened, and the negative pressure is generated, the vacuum negative pressure safety valve will be automatically opened to ensure that the equipment is not damaged.