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  • LiquiSeal™ 735 Series Purge Control Level Transmitters
  • Downpipe Check Valve
  • Tank Top Fittings
  • LiquiSeal™ 735 Series Purge Control Level Transmitters - 2
  • Fully integrated air purge regulator and level transmitter
  • Operation based on the control regulating a continuous 1 cfh (cubic foot per hour) flow of compressed air into the tank downpipe
  • Provides a 1:1 pressure signal to a compatible indicator or external transducer through 1/4 in. airline tubing
  • All LiquiSeal™ purge controls feature an internal isolation diaphragm
  • Back pressure created by the continuous purging of the downpipe is applied to this internal diaphragm
  • Working as a pneumatic transmitter, an equivalent pressure is generated on the gauge side of the diaphragm, which isolates downstream components from contact with the liquid or vapor releases
Unit of Measure

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Part Number

Description

Fittings

Pressure Output

Burst Pressure

Repeatability
N/A LiquiSeal™ 735 Series 1/4" National Pipe Thread (NPT) Fittings and 25 to 650" SafeGard Range Pressure Output Purge Control Transmitter N/A None, 1/4 in. National Pipe Thread (NPT) N/A 25 to 650 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series 1/4" National Pipe Thread (NPT) Fittings and 650 to 1,750" SafeGard Range Pressure Output Purge Control Transmitter N/A None, 1/4 in. National Pipe Thread (NPT) N/A 650 to 1,750 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series 1/4" National Pipe Thread (NPT) Fittings Purge Control Transmitter N/A None, 1/4 in. National Pipe Thread (NPT) N/A Without SafeGard Option N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Polyflo; (1) 3/8" Tube, (2) 1/4" Tube Fittings and 25 to 650" SafeGard Range Pressure Output Purge Control Transmitter N/A Polyflo; (1) 3/8 in. Tube, (2) 1/4 in. Tube N/A 25 to 650 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Polyflo; (1) 3/8" Tube, (2) 1/4" Tube Fittings and 650 to 1,750" SafeGard Range Pressure Output Purge Control Transmitter N/A Polyflo; (1) 3/8 in. Tube, (2) 1/4 in. Tube N/A 650 to 1,750 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Polyflo; (1) 3/8" Tube, (2) 1/4" Tube Fittings Purge Control Transmitter N/A Polyflo; (1) 3/8 in. Tube, (2) 1/4 in. Tube N/A Without SafeGard Option N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Swagelok; (1) 3/8" Tube, (2) 1/4" Tube (Compatible with Copper or Poly Tubing) Fittings and 25 to 650" SafeGard Range Pressure Output Purge Control Transmitter N/A Swagelok; (1) 3/8 in. Tube, (2) 1/4 in. Tube (Compatible with Copper or Poly Tubing) N/A 25 to 650 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Swagelok; (1) 3/8" Tube, (2) 1/4" Tube (Compatible with Copper or Poly Tubing) Fittings and 650 to 1,750" SafeGard Range Pressure Output Purge Control Transmitter N/A Swagelok; (1) 3/8 in. Tube, (2) 1/4 in. Tube (Compatible with Copper or Poly Tubing) N/A 650 to 1,750 in. SafeGard Range N/A 200 psi N/A ± 0.20% of Calibrated Span
N/A LiquiSeal™ 735 Series Swagelok; (1) 3/8" Tube, (2) 1/4" Tube (Compatible with Copper or Poly Tubing) Fittings Purge Control Transmitter N/A Swagelok; (1) 3/8 in. Tube, (2) 1/4 in. Tube (Compatible with Copper or Poly Tubing) N/A Without SafeGard Option N/A 200 psi N/A ± 0.20% of Calibrated Span