Buy Dwyer Series 221, Flanged Chamber Type Level Control

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(800) 884-5767
+1 (332) 900-3727 (Intl.)

Features:

Semi-Automatic (with manual reset) operates automatically on level fall only - manual reset required on level rise. This operation identified by the letters "RU" in type number as in 201GRU
Wide Differential (Single Stage) available only for controls with mercury switch contacts
440 Volt Service Identified by the digit 5 in circuit specification No. such as in - 5820, -5821. For two-stage operation 440V is limited to SP-ST in each stage

Heavy duty flanged chamber features removable float for ease of inspection and maintenance. The 221 Series also provides 1" NPT for standard external mounting. Socket weld hubs or flanges are optional. Rugged C1-75 construction is suitable for operation at 1000 psi (69 bar) at 100°F (38°C), and 850 psig (59 bar) at 475°F (246°C) with a minimum specific gravity of 0.75. C1-60 construction is suitable for operation at 600 psig (41 bar) at 100°F (38°C), and 550 psig (38 bar) at 475°F (246°C) with a minimum specific gravity of 0.60. Models featured can be ordered with various circuits including SPST, SPDT, or DPDT with hermetically sealed snap action or mercury contacts. A full range of enclosures are available including general purpose, weatherproof, explosion-proof, or explosion-proof - vapor proof.

For more information, please see Data Sheet

Meantime you may review Dwyer bestsellers or review the list of all available Dwyer products in the table below.

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Part Number
221-G-4806-C1-60
221-G-4806-C1-60-H2
221-G-4806-C1-60-STW
221-G-4806-C1-60-23720
221-G-4806-C1-60-H2-23720
221-G-4806-C1-60-STW-23720
221-G-4806-C1-60-H2-STW-23720
221-G-4806-C1-75
221-G-4806-C1-75-H2
221-G-4806-C1-75-STW
221-G-4806-C1-75-23720
221-G-4806-C1-75-H2-23720
221-G-4806-C1-75-STW-23720
221-G-4806-C1-75-H2-STW-23720
221-G-4806-C216-60
221-G-4806-C216-60-H2
221-G-4806-C216-60-STW
221-G-4806-C216-60-23720
221-G-4806-C216-60-H2-23720
221-G-4806-C216-60-STW-23720
221-G-4806-C216-60-H2-STW-23720
221-G-4806-C216-75
221-G-4806-C216-75-H2
221-G-4806-C216-75-STW
221-G-4806-C216-75-23720
221-G-4806-C216-75-H2-23720
221-G-4806-C216-75-STW-23720
221-G-4806-C216-75-H2-STW-23720
221-G-4806-HFC1-60
221-G-4806-HFC1-60-H2
221-G-4806-HFC1-60-STW
221-G-4806-HFC1-60-23720
221-G-4806-HFC1-60-H2-23720
221-G-4806-HFC1-60-STW-23720
221-G-4806-HFC1-60-H2-STW-23720
221-G-4806-HFC1-75
221-G-4806-HFC1-75-H2
221-G-4806-HFC1-75-STW
221-G-4806-HFC1-75-23720
221-G-4806-HFC1-75-H2-23720
221-G-4806-HFC1-75-STW-23720
221-G-4806-HFC1-75-H2-STW-23720
221-G-4810-C1-60
221-G-4810-C1-60-H2
221-G-4810-C1-60-STW
221-G-4810-C1-60-23720
221-G-4810-C1-60-H2-23720
221-G-4810-C1-60-STW-23720
221-G-4810-C1-60-H2-STW-23720
221-G-4810-C1-75
221-G-4810-C1-75-H2
221-G-4810-C1-75-STW
221-G-4810-C1-75-23720
221-G-4810-C1-75-H2-23720
221-G-4810-C1-75-STW-23720
221-G-4810-C1-75-H2-STW-23720
221-G-4810-C216-60
221-G-4810-C216-60-H2
221-G-4810-C216-60-STW
221-G-4810-C216-60-23720
221-G-4810-C216-60-H2-23720
221-G-4810-C216-60-STW-23720
221-G-4810-C216-60-H2-STW-23720
221-G-4810-C216-75
221-G-4810-C216-75-H2
221-G-4810-C216-75-STW
221-G-4810-C216-75-23720
221-G-4810-C216-75-H2-23720
221-G-4810-C216-75-STW-23720
221-G-4810-C216-75-H2-STW-23720
221-G-4810-HFC1-60
221-G-4810-HFC1-60-H2
221-G-4810-HFC1-60-STW
221-G-4810-HFC1-60-23720
221-G-4810-HFC1-60-H2-23720
221-G-4810-HFC1-60-STW-23720
221-G-4810-HFC1-60-H2-STW-23720
221-G-4810-HFC1-75
221-G-4810-HFC1-75-H2
221-G-4810-HFC1-75-STW
221-G-4810-HFC1-75-23720
221-G-4810-HFC1-75-H2-23720
221-G-4810-HFC1-75-STW-23720
221-G-4810-HFC1-75-H2-STW-23720
221-G-4813-C1-60
221-G-4813-C1-60-H2
221-G-4813-C1-60-STW
221-G-4813-C1-60-23720
221-G-4813-C1-60-H2-23720
221-G-4813-C1-60-STW-23720
221-G-4813-C1-60-H2-STW-23720
221-G-4813-C1-75
221-G-4813-C1-75-H2
221-G-4813-C1-75-STW
221-G-4813-C1-75-23720
221-G-4813-C1-75-H2-23720
221-G-4813-C1-75-STW-23720
221-G-4813-C1-75-H2-STW-23720
221-G-4813-C216-60
221-G-4813-C216-60-H2
221-G-4813-C216-60-STW
221-G-4813-C216-60-23720
221-G-4813-C216-60-H2-23720
221-G-4813-C216-60-STW-23720
221-G-4813-C216-60-H2-STW-23720
221-G-4813-C216-75
221-G-4813-C216-75-H2
221-G-4813-C216-75-STW
221-G-4813-C216-75-23720
221-G-4813-C216-75-H2-23720
221-G-4813-C216-75-STW-23720
221-G-4813-C216-75-H2-STW-23720
221-G-4813-HFC1-60
221-G-4813-HFC1-60-H2
221-G-4813-HFC1-60-STW
221-G-4813-HFC1-60-23720
221-G-4813-HFC1-60-H2-23720
221-G-4813-HFC1-60-STW-23720
221-G-4813-HFC1-60-H2-STW-23720
221-G-4813-HFC1-75
221-G-4813-HFC1-75-H2
221-G-4813-HFC1-75-STW
221-G-4813-HFC1-75-23720
221-G-4813-HFC1-75-H2-23720
221-G-4813-HFC1-75-STW-23720
221-G-4813-HFC1-75-H2-STW-23720
221-G-4814-C1-60
221-G-4814-C1-60-H2
221-G-4814-C1-60-STW
221-G-4814-C1-60-23720
221-G-4814-C1-60-H2-23720
221-G-4814-C1-60-STW-23720
221-G-4814-C1-60-H2-STW-23720
221-G-4814-C1-75
221-G-4814-C1-75-H2
221-G-4814-C1-75-STW
221-G-4814-C1-75-23720
221-G-4814-C1-75-H2-23720
221-G-4814-C1-75-STW-23720
221-G-4814-C1-75-H2-STW-23720
221-G-4814-C216-60
221-G-4814-C216-60-H2
221-G-4814-C216-60-STW
221-G-4814-C216-60-23720
221-G-4814-C216-60-H2-23720
221-G-4814-C216-60-STW-23720
221-G-4814-C216-60-H2-STW-23720
221-G-4814-C216-75
221-G-4814-C216-75-H2
221-G-4814-C216-75-STW
221-G-4814-C216-75-23720
221-G-4814-C216-75-H2-23720
221-G-4814-C216-75-STW-23720
221-G-4814-C216-75-H2-STW-23720
221-G-4814-HFC1-60
221-G-4814-HFC1-60-H2
221-G-4814-HFC1-60-STW
221-G-4814-HFC1-60-23720
221-G-4814-HFC1-60-H2-23720
221-G-4814-HFC1-60-STW-23720
221-G-4814-HFC1-60-H2-STW-23720
221-G-4814-HFC1-75
221-G-4814-HFC1-75-H2
221-G-4814-HFC1-75-STW
221-G-4814-HFC1-75-23720
221-G-4814-HFC1-75-H2-23720
221-G-4814-HFC1-75-STW-23720
221-G-4814-HFC1-75-H2-STW-23720
221-G-4815-C1-60
221-G-4815-C1-60-H2
221-G-4815-C1-60-STW
221-G-4815-C1-60-23720
221-G-4815-C1-60-H2-23720
221-G-4815-C1-60-STW-23720
221-G-4815-C1-60-H2-STW-23720
221-G-4815-C1-75
221-G-4815-C1-75-H2
221-G-4815-C1-75-STW
221-G-4815-C1-75-23720
221-G-4815-C1-75-H2-23720
221-G-4815-C1-75-STW-23720
221-G-4815-C1-75-H2-STW-23720
221-G-4815-C216-60
221-G-4815-C216-60-H2
221-G-4815-C216-60-STW
221-G-4815-C216-60-23720
221-G-4815-C216-60-H2-23720
221-G-4815-C216-60-STW-23720
221-G-4815-C216-60-H2-STW-23720
221-G-4815-C216-75
221-G-4815-C216-75-H2
221-G-4815-C216-75-STW
221-G-4815-C216-75-23720
221-G-4815-C216-75-H2-23720
221-G-4815-C216-75-STW-23720
221-G-4815-C216-75-H2-STW-23720
221-G-4815-HFC1-60
221-G-4815-HFC1-60-H2
221-G-4815-HFC1-60-STW
221-G-4815-HFC1-60-23720
221-G-4815-HFC1-60-H2-23720

Part Number

221-G-4806-C1-60

221-G-4806-C1-60-H2

221-G-4806-C1-60-STW

221-G-4806-C1-60-23720

221-G-4806-C1-60-H2-23720

221-G-4806-C1-60-STW-23720

221-G-4806-C1-60-H2-STW-23720

221-G-4806-C1-75

221-G-4806-C1-75-H2

221-G-4806-C1-75-STW

221-G-4806-C1-75-23720

221-G-4806-C1-75-H2-23720

221-G-4806-C1-75-STW-23720

221-G-4806-C1-75-H2-STW-23720

221-G-4806-C216-60

221-G-4806-C216-60-H2

221-G-4806-C216-60-STW

221-G-4806-C216-60-23720

221-G-4806-C216-60-H2-23720

221-G-4806-C216-60-STW-23720

221-G-4806-C216-60-H2-STW-23720

221-G-4806-C216-75

221-G-4806-C216-75-H2

221-G-4806-C216-75-STW

221-G-4806-C216-75-23720

221-G-4806-C216-75-H2-23720

221-G-4806-C216-75-STW-23720

221-G-4806-C216-75-H2-STW-23720

221-G-4806-HFC1-60

221-G-4806-HFC1-60-H2

221-G-4806-HFC1-60-STW

221-G-4806-HFC1-60-23720

221-G-4806-HFC1-60-H2-23720

221-G-4806-HFC1-60-STW-23720

221-G-4806-HFC1-60-H2-STW-23720

221-G-4806-HFC1-75

221-G-4806-HFC1-75-H2

221-G-4806-HFC1-75-STW

221-G-4806-HFC1-75-23720

221-G-4806-HFC1-75-H2-23720

221-G-4806-HFC1-75-STW-23720

221-G-4806-HFC1-75-H2-STW-23720

221-G-4810-C1-60

221-G-4810-C1-60-H2

221-G-4810-C1-60-STW

221-G-4810-C1-60-23720

221-G-4810-C1-60-H2-23720

221-G-4810-C1-60-STW-23720

221-G-4810-C1-60-H2-STW-23720

221-G-4810-C1-75

221-G-4810-C1-75-H2

221-G-4810-C1-75-STW

221-G-4810-C1-75-23720

221-G-4810-C1-75-H2-23720

221-G-4810-C1-75-STW-23720

221-G-4810-C1-75-H2-STW-23720

221-G-4810-C216-60

221-G-4810-C216-60-H2

221-G-4810-C216-60-STW

221-G-4810-C216-60-23720

221-G-4810-C216-60-H2-23720

221-G-4810-C216-60-STW-23720

221-G-4810-C216-60-H2-STW-23720

221-G-4810-C216-75

221-G-4810-C216-75-H2

221-G-4810-C216-75-STW

221-G-4810-C216-75-23720

221-G-4810-C216-75-H2-23720

221-G-4810-C216-75-STW-23720

221-G-4810-C216-75-H2-STW-23720

221-G-4810-HFC1-60

221-G-4810-HFC1-60-H2

221-G-4810-HFC1-60-STW

221-G-4810-HFC1-60-23720

221-G-4810-HFC1-60-H2-23720

221-G-4810-HFC1-60-STW-23720

221-G-4810-HFC1-60-H2-STW-23720

221-G-4810-HFC1-75

221-G-4810-HFC1-75-H2

221-G-4810-HFC1-75-STW

221-G-4810-HFC1-75-23720

221-G-4810-HFC1-75-H2-23720

221-G-4810-HFC1-75-STW-23720

221-G-4810-HFC1-75-H2-STW-23720

221-G-4813-C1-60

221-G-4813-C1-60-H2

221-G-4813-C1-60-STW

221-G-4813-C1-60-23720

221-G-4813-C1-60-H2-23720

221-G-4813-C1-60-STW-23720

221-G-4813-C1-60-H2-STW-23720

221-G-4813-C1-75

221-G-4813-C1-75-H2

221-G-4813-C1-75-STW

221-G-4813-C1-75-23720

221-G-4813-C1-75-H2-23720

221-G-4813-C1-75-STW-23720

221-G-4813-C1-75-H2-STW-23720

221-G-4813-C216-60

221-G-4813-C216-60-H2

221-G-4813-C216-60-STW

221-G-4813-C216-60-23720

221-G-4813-C216-60-H2-23720

221-G-4813-C216-60-STW-23720

221-G-4813-C216-60-H2-STW-23720

221-G-4813-C216-75

221-G-4813-C216-75-H2

221-G-4813-C216-75-STW

221-G-4813-C216-75-23720

221-G-4813-C216-75-H2-23720

221-G-4813-C216-75-STW-23720

221-G-4813-C216-75-H2-STW-23720

221-G-4813-HFC1-60

221-G-4813-HFC1-60-H2

221-G-4813-HFC1-60-STW

221-G-4813-HFC1-60-23720

221-G-4813-HFC1-60-H2-23720

221-G-4813-HFC1-60-STW-23720

221-G-4813-HFC1-60-H2-STW-23720

221-G-4813-HFC1-75

221-G-4813-HFC1-75-H2

221-G-4813-HFC1-75-STW

221-G-4813-HFC1-75-23720

221-G-4813-HFC1-75-H2-23720

221-G-4813-HFC1-75-STW-23720

221-G-4813-HFC1-75-H2-STW-23720

221-G-4814-C1-60

221-G-4814-C1-60-H2

221-G-4814-C1-60-STW

221-G-4814-C1-60-23720

221-G-4814-C1-60-H2-23720

221-G-4814-C1-60-STW-23720

221-G-4814-C1-60-H2-STW-23720

221-G-4814-C1-75

221-G-4814-C1-75-H2

221-G-4814-C1-75-STW

221-G-4814-C1-75-23720

221-G-4814-C1-75-H2-23720

221-G-4814-C1-75-STW-23720

221-G-4814-C1-75-H2-STW-23720

221-G-4814-C216-60

221-G-4814-C216-60-H2

221-G-4814-C216-60-STW

221-G-4814-C216-60-23720

221-G-4814-C216-60-H2-23720

221-G-4814-C216-60-STW-23720

221-G-4814-C216-60-H2-STW-23720

221-G-4814-C216-75

221-G-4814-C216-75-H2

221-G-4814-C216-75-STW

221-G-4814-C216-75-23720

221-G-4814-C216-75-H2-23720

221-G-4814-C216-75-STW-23720

221-G-4814-C216-75-H2-STW-23720

221-G-4814-HFC1-60

221-G-4814-HFC1-60-H2

221-G-4814-HFC1-60-STW

221-G-4814-HFC1-60-23720

221-G-4814-HFC1-60-H2-23720

221-G-4814-HFC1-60-STW-23720

221-G-4814-HFC1-60-H2-STW-23720

221-G-4814-HFC1-75

221-G-4814-HFC1-75-H2

221-G-4814-HFC1-75-STW

221-G-4814-HFC1-75-23720

221-G-4814-HFC1-75-H2-23720

221-G-4814-HFC1-75-STW-23720

221-G-4814-HFC1-75-H2-STW-23720

221-G-4815-C1-60

221-G-4815-C1-60-H2

221-G-4815-C1-60-STW

221-G-4815-C1-60-23720

221-G-4815-C1-60-H2-23720

221-G-4815-C1-60-STW-23720

221-G-4815-C1-60-H2-STW-23720

221-G-4815-C1-75

221-G-4815-C1-75-H2

221-G-4815-C1-75-STW

221-G-4815-C1-75-23720

221-G-4815-C1-75-H2-23720

221-G-4815-C1-75-STW-23720

221-G-4815-C1-75-H2-STW-23720

221-G-4815-C216-60

221-G-4815-C216-60-H2

221-G-4815-C216-60-STW

221-G-4815-C216-60-23720

221-G-4815-C216-60-H2-23720

221-G-4815-C216-60-STW-23720

221-G-4815-C216-60-H2-STW-23720

221-G-4815-C216-75

221-G-4815-C216-75-H2

221-G-4815-C216-75-STW

221-G-4815-C216-75-23720

221-G-4815-C216-75-H2-23720

221-G-4815-C216-75-STW-23720

221-G-4815-C216-75-H2-STW-23720

221-G-4815-HFC1-60

221-G-4815-HFC1-60-H2

221-G-4815-HFC1-60-STW

221-G-4815-HFC1-60-23720

221-G-4815-HFC1-60-H2-23720

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Dwyer Series 221 Flanged Chamber Type Level Control

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