Switches - Flow
Features: The Linc NF265 & NF282 flow indicators are used to monitor flow/no flow. The electric or pneumatic output is used to alarm, operate valves, control pumps or perform any desired electrical or pneumatic function.
Output:
NF265 Electric: SPST (SPDT optional), 100 V.A. AC, 100W DC, 3 amp inrush capability, maximum 250 Volts, Hermetically sealed
NF282 Pneumatic: 0 to full supply pressure
Working Pressure: 5,000 psi
Temperature: -40ºF to + 400ºF standard, with 500ºF optional for NF265 model only
Materials: 316 stainless steel is standard, available in other austenitic metals or plastic
Connections (process):
NF265 Electric: 1 1/2″ or 2″ NPT standard, flanged available
NF282 Pneumatic: 2″ NPT standard, 1 1/2 NPT or flanged available
Paddle Length: 1 1/2″ standard (for 2″ line), available to your specification
Flow Indication: Less than .75 ft/sec indicates no flow; more than 1.0 ft/sec indicates flow
Features: The Kenco NO-FLOW SWITCH (“NFS”) is designed to protect the engine and compressor cylinder(s) against lubrication failure. The Kenco “NFS” mounts in line between the lubricator and cylinder. On start up, the first stroke of the lubricator automatically opens the “NFS” switch contact. The contact is opened and closed by the precision-fit plunger inside the “NFS” body. Lubricator oil flows through the body with the rate of flow controlled by the amount of oil that passes between the precision-fit plunger and the bore inside the body. If the lubricator stops pumping, the precision-fit plunger will drift back against the switch contact and stop the engine.
Switch Contact Electrical Rating: 2 amps, 30 VAC or VDC
Switch Contact Circuitry: Case-To-Ground
Flow Rates Required to Open Switch Contact:
• 6 drops per minute or more when using standard plunger spring
• Between 3 and 6 drops per minute when using optional light plunger spring “L” (See ordering note below)
Maximum Recommended Working Pressures:
• NFS-3, NFS-4, NFS-5, NFS-30: 2,000 psig
• NFS-6, NFS-11: 4,000 psig
• NFS-7, NFS-9, NFS-25: 1,750 psig (Consult factory for other available rupture pressure settings)
Features: Kenco’s Thermal Differential Switches are designed for a wide range of flow and level applications. These switches can be used to detect either the overall liquid level or a liquid – liquid interface. They can also be used to detect a specific flow rate or a flow/no flow condition in liquids and gasses.
Level and Interface Detection
Flow Detection for Liquids and Gasses
Fast Response Time
No Moving Parts
Temperature Compensation
Switches - Level
Features: Used as a high & low level control, the L471 & L471SC can activate alarms, provide a switch input for control systems, or perform a variety of desired electrical switch operations actuated by a liquid or liquid interface.
Pressure: 1,500 psi standard, available to 5,000 psi, (1,500 psi maximum with the Manual Override option)
Temperature: -40ºF to + 400ºF standard
Specific Gravity: 0.4 minimum standard; interface 0.1 differential minimum
Materials: 316 stainless steel wetted parts are standard. Available in other austenitic metals and plastics
Switch Rating: SPST (SPDT optional) 100 V.A. AC, 100W DC, 3 amp inrush capability, maximum of 250 Volts, Hermetically sealed
Connections:
Electrical: 1/2″ conduit standard, with other sizes optional
Process: 1 1/2″ NPT standard, available in 2″ NPT, 3″ flanged or larger, and externally caged
CSA Certification: Listed as explosion-proof for Class I, Div. 1, Groups A, B, C, D; Class II, Div. 1, Groups E, F, G; and Class III, Div. 1
Features: Kenco’s Thermal Differential Switches are designed for a wide range of flow and level applications. These switches can be used to detect either the overall liquid level or a liquid – liquid interface. They can also be used to detect a specific flow rate or a flow/no flow condition in liquids and gasses.
Level and Interface Detection
Flow Detection for Liquids and Gasses
Fast Response Time
No Moving Parts
Temperature Compensation