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Dwyer 锅炉水位控制器 123系列


为锅炉而设计, 123系列 锅炉水位控制器主要用于低水位和补水控制。特别设计的开关可消除由于水位的波动带来的开关频繁动作。透明的盖板可直接透过看到开关的动作。法兰连接的外室很容易清洁或更换浮子,无需拆卸其它管线。


固耐用,铸铁外壳


Service: Compatible Liquids. Cast Iron Is Not For Use With Lethal Or Flammable Substances Either Liquid Or Gaseous.

Wetted Materials: Body: Cast Iron. Float: 304 SS. Trim And Packing Gland: Brass. Packing: Carbon. Body Gasket: Carbon.

Temperature Limit: 365°F (185°C).

Pressure Limit: 150 Psig (10.34 Bar).

Enclosure Rating: General Purpose. Optional Weatherproof.

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

Electrical Rating: Snap Switch: 15A @ 120/240/480 VAC, 0.5A @ 120 VDC Resistive, 0.25A @ 240 VDC Resistive. Mercury Switch: 4A @ 120 VAC/DC, 2A @ 240 VAC/DC.

Electrical Connections: Screw Terminal.

Conduit Connection: 7/8" (22.23 Mm) Hole For 1/2" (12.7 Mm) Conduit.

Process Connections: 1" Female NPT.

Mounting Orientation: Vertical.

Weight: 20 Lb (9.1 Kg).

Agency Approvals: CSA, UL. (Snap Switch Is Not Rated).

Deadband: Approximately 1-1/2" (38.1 Mm).

Specific Gravity: 0.88 Minimum.

Options: Manual Reset.


ACCESSORIES:

202795-00 - 121-116, Gland Assembly (Replacement Part)

411569-00 - 18-110L, Lexan Cover, Gen Encl (Replacement Part)

422990-00 - 45-26SS, SS Float (Replacement Part)

423305-10 - 121-11SS, 2-3/4" SS Float Rod (Replacement Part)

441923-00 - 121-14-1, Body Gasket (Replacement Part)