P-T Calculator icon

P-T Calculator

National Refrigerants Inc.

4.8

store rating

Free

In this pressure and temperature calculator, users input refrigerant values to automatically determine related properties. Includes altitude correction, unit conversion, refrigerant selection, and links to additional resources.

AppRecs review analysis

AppRecs rating 4.3. Trustworthiness 56 out of 100. Review manipulation risk 31 out of 100. Based on a review sample analyzed.

★★★★

4.3

AppRecs Rating

Ratings breakdown

5 star

94%

4 star

2%

3 star

0%

2 star

0%

1 star

4%

What to know

High user satisfaction

94% of sampled ratings are 5 stars

Authentic reviews

No red flags detected

About P-T Calculator

This comprehensive Pressure/Temperature calculation tool from National Refrigerants provides several unique features designed to make the HVAC/R technician’s job easier. This app can calculate a simple pressure/temperature relationship or calculate superheat/subcool temperatures. The user can input pressure or temperature(s) on any screen and the other values are automatically calculated and displayed. For refrigerant blends, both saturated vapor and saturated liquid values are displayed. Within the superheat/subcool screen, a graphic display for blends will show the entering, mid-point, and outlet temperature as well as line temperature.

Other features include:
- Automatic altitude correction (if location services are enabled)
- English/Metric units
- Easily choose from “favorites” refrigerants list
- Supplementary information about refrigerants and links to NRI website
- Link to NRI Lubricant Cross Reference app
- Link to NRI Branch Locator tool
P-T Calculator Screenshots
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