FISHER™ L2 AND L2SJ
Specifications:
Models: L2 (Single-Acting, for Inlet Control), L2sj (Double-Acting, for Outlet Control)
Type: Pilot-Operated Float Level Controller
Operation: Mechanical / Pneumatic (Self-Contained)
Process Connections & Mounting:
Cage Size: Standard displacer cage lengths from 14 in to 120 in (355 mm to 3048 mm).
Process Connection: Typically 2-inch or 3-inch NPT or flanged cage connections.
Mounting: Internal cage, external cage, or bridle mounting.
Pilot & Supply Pressure:
Supply Pressure Range: 35 to 150 psig (2.4 to 10.3 bar)
Pilot Output Pressure: Varies based on supply pressure and float position, used to actuate the main control valve.
Materials of Construction:
Cage/Body: Cast Iron (standard), Ductile Iron, Carbon Steel, Stainless Steel.
Float: Stainless Steel.
Internal Parts: Stainless Steel and Brass.
Performance & Sizing:
Control Sensitivity: Highly dependent on float size, lever arm length, and supply pressure.
Capacity: The controllers themselves do not have a flow capacity (Cv). They are sized based on their ability to pilot and control a separate main control valve, which is selected based on the required flow rate.
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