Download the Delta Controls
Model P53 Datasheet 
Note: You will need the Acrobat Reader to view the data sheet. 
Features
· Inspect, test, or service the Delta
Controls P53 without shutting down or depressurizing the process
· Remove or insert "up-from-the-bottom" or "in-from-the-side"
sensors without draining the tank
· Simple direct inserted design is useful for many common applications
· PTFE Teflon® insulation allows operation on conductive or nonconductive materials
· High pressure PTFE Teflon® seal is reliable, and essentially corrosion proof
· Open design is easy to clean and resists material collection and deposition
· Easily installed in any orientation; vertically down or up, horizontal, or
at an angle
Application
The Delta Controls Model P53 probe is very similar to the Model P51 general purpose probe and is based on that design. It is intended for applications where it would be impractical or impossible to depressurize or drain the process system for inspection and testing of the probe instrument. Such processes include oil refineries, gas cycle plants, large storage tanks, and toxic materials. The gland body of the P53 is effectively made very long by the addition of a polished seamless tube mounted coaxial over part of the sensing probe. A second sealing gland with Teflon® seals is installed on the outside of the tube. A block valve on the vessel shuts off the fluid flow. The second gland is screwed into the block valve and tightened to prevent leaks. The valve is opened and the P53 is pushed in through the valve until the active portion of the sensing rod is inside the vessel. A mechanical clamp locks the probe in position until a need to remove it occurs. The gland follower seal design has been reliably used for over 30 years. The PTFE Teflon® insulation jacket is a welded heavy extrusion and not a thin coating or merely glued in place.
Specifications
Working Pressure At 100°F
(40°C): -15 to 50 PSIG (-1 to 3 bar) using manual insertion, up to
1500 PSIG (100 bar) using Delta screw jack
Working temperature: -460 to +400°F (-238 to +205°C)
Insertion length: Up to 20 feet (6 meters)
Process connection: 1-1/4" MPT or 1-1/2"/150# R.F.
flange
Electronics module: Compatible with all Delta Controls Models
Process Temperature
Sensing: Optional up to 250°F (122°C); over a second 4-20 mA isolated
signal loop
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