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YL-813E digital pressure switch

YL-813E is an intelligent digital pressure switch with an 80mm stainless steel casing, integrating pressure measurement, display, and control into an economical digital pressure switch. This series of pressure switches can set two normally open and normally closed alarm points, and can also achieve two high and low pressure control. In addition, it has multiple functions such as one key reset and switching between three display units. The design of the circuit emphasizes stability and fully considers the actual situation of the automation site. It has strong resistance to dry magnetic interference, surge protection, and anti reverse connection protection.

The operation method of this pressure switch is simple and intuitive. You can set the action point and return difference according to the manual, and the two sets of relay return differences can be set independently. According to the customer's site, only one group can be used for control, or both groups can be used together. All products adopt food grade 304 stainless steel joints and 304 stainless steel shells, providing different installation methods in axial and radial directions.


  • Introduction

    YL-813E is an intelligent digital pressure switch with an 80mm stainless steel casing, integrating pressure measurement, display, and control into an economical digital pressure switch. This series of pressure switches can set two normally open and normally closed alarm points, and can also achieve two high and low pressure control. In addition, it has multiple functions such as one key reset and switching between three display units. The design of the circuit emphasizes stability and fully considers the actual situation of the automation site. It has strong resistance to dry magnetic interference, surge protection, and anti reverse connection protection.

    The operation method of this pressure switch is simple and intuitive. You can set the action point and return difference according to the manual, and the two sets of relay return differences can be set independently. According to the customer's site, only one group can be used for control, or both groups can be used together. All products adopt food grade 304 stainless steel joints and 304 stainless steel shells, providing different installation methods in axial and radial directions.



  • Structure and dimensions

    YL-813E数显压力开关尺寸图


  • Parameter
    Range    negative pressure:0~-100kPa(0~-0.1MPa)
        micropressure:0~5...10...25...50...100kPa
        convention:0~0.25...0.6...1.0...1.6...2.5...4MPa
        high-handed:0~6...10...16...25...40...60MPa
        ultrahigh voltage:0~100...160...200MPa
    Overload pressure    150%(>10MPa); 200%(≤10MPa)
    Output    Relay output, normally open and normally closed
    Output relay capacity    220V AC  5A
    Power supply    24VDC;220VAC;380VAC
    Setting range    Full-range segment can set control points, anti-fluctuation,hysteresis setting
    Accuracy    0.5%FS
    Measuring medium    Gas, water, oil
    Operating temperature    -20℃~65℃
    Connection size    G1/2、M20*1.5、G1/4


  • Process
    Retail: Contact customer service - Consult product parameters-Confirm product model-Payment-Logistics shipment-Sign for delivery
    Key customers: Contact customer service-Consult industry solutions-Confirm product model parameters-Sign relevant technical contracts-Payment-Logistics shipment-Sign for receipt








  • After-sales

    1. LONGLV provides customers with installation and debugging services, as well as other technical consultations. If necessary, technical personnel can provide on-site technical training. If the customer has any technical questions, the technical personnel will provide a response within 4 hours.
    2. LONGLV products are strictly designed and produced in accordance with the ISO9001 international quality system, with a 1-year warranty for sensor products and a 3-year warranty for instrument products, with a 7-day return and exchange policy and lifelong maintenance.
    (Human damage is not covered by the warranty, and customized products without quality issues are not returned or replaced.)
    3. For returns and exchanges caused by quality issues, Longlv will bear the return and exchange shipping costs. The cost of returns andexchanges for non quality issues will be borne by the customer.
    Note: Quality issues refer to customized parameters such as function, size, specifications, and installation method that are not customized according to customer requirements, do not meet functional requirements, have dimensional errors, and have inaccurate accuracy (excluding within the error range).
    Customized products require confirmation of drawings by both parties before processing and production. If the product does not meet customer requirements, a written objection must be raised within two weeks. If the customer does not raise an objection within the specified time limit, it will be deemed as qualified acceptance.
    If an objection is raised within the deadline and it is confirmed by both parties that it is a product quality issue or production has not been carried out according to the requirements confirmed by both parties, it can be exchanged or refunded. If there are no quality issues and the shipping model andthe contract signed model are complete and correct, no return or exchange service will be provided.
    4. The products returned for repair will have a test result issued within 3 working days and the repair will be completed within 7 working days.
    After sales consultation
    Technical consultation, factory repair, invoices, complaint suggestions, and other related issues. After sales service hotline 021-51601181


  • Room 910, Building 1, Zikun Science and Technology Park, No. 5018
    Hutai Road, Gucun Town, Baoshan District, Shanghai

  • GET IN TOUCH:+86-189-1625-1113

  • E-mail:shlonglv@163.com

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