Emergency shutoff valve EIM-2 type mechanical emergency shutoff valve
When the seismic sensor is activated, it acts on the trip mechanism of the shutoff valve via the release mechanism, and the valve closes. Restoration is a safer recovery method because the shutoff valve is opened manually after operating the knob of the seismic sensor.
- Where to use
- Fuel supply lineVarious storage tanks
Major features
- Since it is a mechanical shut-off valve, there is no need for power failure countermeasures (emergency power supply) or electrical equipment work. (Except with switch for open / close signal)
- Since there is no risk of a secondary disaster due to a short circuit in electricity or heat generation, the power supply and explosive dangerous place (when using the limit switch signal in the explosive dangerous place, use the explosion-proof limit switch) and the power supply It can also be used in non-mountainous areas.
- Since the seismic sensor and shutoff valve are installed separately, the seismic sensor can be mounted on a solid stand or a sturdy wall surface that is separate from the piping system, so there is no malfunction due to piping vibration.
specification
Product code | EIM2-VA |
---|---|
Valve type | Mechanical |
type | Made of stainless steel |
Actuation | Valve closed when the seismic sensor is activated (manual shutoff valve is opened after the seismic sensor is restored) |
Nominal diameter | 15-200 (1/2-8) |
Applicable fluid | Fuel oilFor fuel oil and light oil, the material of the main body may be specified depending on the destination (Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Defense, etc.), so please check and specify the material. For gasoline, please contact us. ·gasFor gas, the disc is synthetic rubber.Please contact us when using with fuel gas. ·waterWhen using it for a water supply device, use EIM-2N, 3N type, which conforms to the performance standards of the Waterworks Law. ·airFor gas, the disc is synthetic rubber. ·oilFor fuel oil and light oil, the material of the main body may be specified depending on the destination (Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Defense, etc.), so please check and specify the material. For gasoline, please contact us. ·(vaporThe fluid temperature of 180 ℃ or less (for steam) is manufactured by metal touch of the valve body. ) |
Fluid temperature | 5-60 ℃The fluid temperature of 180 ℃ or less (for steam) is manufactured by metal touch of the valve body. |
Applicable pressure | 1.0MPaPlease contact us when using with fuel gas. |
Protective structure | Dust-proof type, for indoor use (When using outdoors, please use with a rain-proof cover.)Please contact us for rainproof covers (steel plate, stainless steel). |
Ambient temperature | -10 to 50 ° C (cannot be frozen) |
End connection | JIS 10K FF flange |
Mounting posture | Upright mounting on horizontal piping |
Applicable differential pressure limit | Nominal diameter 15 to 25: 1.0 MPa or less Nominal diameter 32-40: 0.7MPa or less Nominal diameter 50: 0.5 MPa or less Nominal diameter 65: 0.2MPa or less Nominal diameter 80: 0.2MPa or less Nominal diameter 100: 0.1 MPa or less Nominal diameter 125: 0.1 MPa or less Nominal diameter 150: 0.05MPa or less Nominal diameter 200: 0.04MPa or less |
Allowable leakage amount | None (visual pressure gauge) |
Material body | SCSPlease contact us for FC and SCPH main units. |
Material Valve body | SUS |
Material disc | PTFE |
Seismic device operating method | Weight magnet type (mechanical type) |
Seismic device operation display | Seismic sensor main unit display window Green: Warning display Red: Operation display |
Seismic device reset method | By rotating the "knob" on the front of the seismic sensor |
Seismic sensor Seismic detection function | Operating acceleration: 200 gal (equivalent to seismic intensity 5+) |
Seismic device operation check | Manual operation by rotating the "knob" on the front of the seismic sensor |
Seismic device accuracy check | Confirmation of operating angle by tilting the seismic sensor |
Seismic device weather resistance | Simple drip-proof structure-For indoor use (When using outdoors, please use the one with a special box.)Seismic sensors are also manufactured with a special box for outdoor installation (steel plate, stainless steel). |
Seismic device operating temperature range | -10 to 50 ° C |
Seismic device Operating humidity range | 90% RH or less |
Seismic device release length | In addition to 1,000 mm (applicable straight line distance 500 to 700 mm), according to the release length tableIf the seismic sensor is below the shutoff valve, use a release length of 1,800 mm. (Refer to page 381 for installation.) |
- We also manufacture one or two limit switches. (Electrical work is required.)
- We also manufacture with an explosion-proof limit switch. (When ordering, please specify the outer diameter of the cable you are using.)
- We can also manufacture an emergency shutoff system that can control two shutoff valves at the same time with one seismic sensor. (Delivery form is 1 dedicated seismic sensor and 2 shutoff valves.) Please contact us for details.
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Frequently Asked Questions and Explanations
Is it possible to change the operating acceleration setting locally?
The operating acceleration cannot be changed in the field. Please contact us when ordering.
Is it possible to extract the operating signal?
EIM-2,3 Leeds is also manufactured with a limit switch (no voltage) as an option. The EIM-7 series has a limit switch (no voltage) on the closed side as standard.
Do you need a power supply?
The mechanical emergency shutoff valve does not require external power such as electrical signals, and does not require a power source because it operates only with the operating force of the seismic sensor due to seismic motion.
Inquiries about this product
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