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Dwyer 190系列頂部安裝式液位控制器

詳細(xì)介紹

用途泛的液位控制開(kāi)關(guān)，190系列頂部安裝式液位控制器能夠用于所有類型槽罐的液位監(jiān)控。

這種浮筒式的液位開(kāi)關(guān)不是浮子浮在液位表面，而是浮筒被懸掛在彈簧上，當(dāng)液位上升時(shí)，浮力導(dǎo)致浮筒的重量減少，也減少了懸掛的彈簧的張力，使得開(kāi)關(guān)動(dòng)作。由于采用不同的原理，這個(gè)液位開(kāi)關(guān)比浮子式液位開(kāi)關(guān)更能承受干擾或壓力的變化，特別適用于粘度大的液體或臟污的液體。

Service: Compatible Liquids.

Wetted Materials: Cable, Spring And Stops: 316 SS. Optional Inconel? Spring; Displacers: Porcelain. Optional 304 SS, 316 SS, Or Carbon Graphite.

Temperature Limits: 32 To 200°F (0 To 93.3°C). Higher Ratings Available.

Pressure Limit: 125 Psig (8.6 Bar). Higher Ratings Available.

Enclosure Rating: NEMA 4X. Optional General Purpose Or Explosion-Proof.

Switch Type: SPDT Snap Switch, Hermetically Sealed Snap Switch, Or Mercury Switch. Optional DPDT Or Two Stage.

Electrical Rating: Snap Switch: 12A@ 120 VAC, 5A @ 240 VAC, 0.5A@ 125 VDC Resistive, 0.25A@ 250 VDC Resistive; Hermetically Sealed Snap Switch: 5A@ 120 VAC, 5A@ 240 VAC, 5A@ 30 VDC Resistive; Mercury Switch: 4A@ 120 VAC/DC, 2A@ 240 VAC/DC. Higher Contact Ratings Available For The Mercury Switch.

Electrical Connections: Screw Terminal.

Conduit Connection: 3/4" Female NPT.

Process Connections: 4" 125 Cast Iron Flange. Other Material, Size, And Rating Flanges Are Available.

Mounting Orientation: Vertical.

Set Point Adjustment: Adjustable By Moving Displacers, See Dimension Chart For Minimum And Maximum Values.

Weight: General Purpose Or Watertight Enclosure With 4" 125# Cast Iron Flange Approximately 28 Lb (12.7 Kg); Explosion-Proof Or Explosion-Proof/Vapor-Proof Approximately 32 Lb (14.5 Kg).

Agency Approvals: UL, None On HM Switch.

Specific Gravity: Standard Is 1.0. Specify When Ordering By Replacing 1.0 In Model Number With Specific Gravity Setting Desired. Settable Range Is 0.5 To 1.2.

Cable Length: 10 Ft (3 M) Standard. Optional Up To 100 Ft (30.5 M).

Inconel? Is A Registered Trademark Of Huntington Alloys Corporation.

關(guān)鍵詞：液位控制器液位開(kāi)關(guān)

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