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Model L81 Flange Mount Pneumatic Level Switch
Brand: K-Dyne, IncThis version of the K-Dyne, Inc. Model L81 liquid level switch incorporates a pneumatic 3-way valve, providing positive and fast system response. Its design has non-adjustable trip point and narrow level operation range making it perfect for applications where trip point tampering is unacceptable. An internal stainless steel supply gas filter reduces maintenance requirements.
Features- Excellent for dirty fluid applications: The design has no deep cavities or recesses exposed to process fluids
- No external adjustments: The design minimizes the set point tampering on high or low level alarms
- Isolated pivot: Patented internal pivot seal design provides efficient mechanism to transmit liquid buoyancy
- Reversible switch action: Mode of operation (high or low) may be changed without switch recalibration
Specifications
Brand
Ambient Temperature Range
- -29° to 82° C (-20° to 180° F)
Ball Material
- Tungsten Carbide
Cap Material
- Spring Cap: 316 Stainless Steel
Cone Material
- 630 (17-4 PH) Stainless Steel
Enclosure, Body Material
- 316 Stainless Steel
Flange Size - 2” (DN 50)
- 2” (DN 50) - Unrated
Fluid Specific Gravity
- Minimum: 0.6
NACE & NIST
- NACE
Nut & Bolt Material
- Hex Nut: 316 Stainless Steel
O-Ring Material
- Seat & Valve Body: Fluorocarbon
- Valve Stem: Fluorosilicone
Operating Pressure
- Maximum
Pressure Range
- Maximum
Process Connection Style
- 2” or Larger
Process Temperature
- Maximum
Screw Material
- Set Screw: 18-8 Stainless Steel
- Socket Cap: 316 Stainless Steel
Seal Retainer
- 316 Stainless Steel
Seat / Seal Material
- Body Seal: Fluorocarbon (FKM)
- Seat: 316 Stainless Steel
Spring Material
- Inconel X-750
- Valve Stem: 316 Stainless Steel
Supply Pressure - Maximum
- psi: 35 (kPa: 241, bar: 2.4)
Valve Type
- 3-Way Block & Bleed Valve