The McElroy McCalc® calculates fusion parameters based on industry standards and specifications for McElroy hydraulic fusion machines.

Select from a list of McElroy fusion machines and fusion standards, then enter pipe size, wall thickness and drag pressure. Tap the "Calculate" button and McElroy McCalc® displays the pressures and times for fusion cycles and heater temperature range according to the selected standard.

- A list of McElroy hydraulic fusion machines
- Industry standards: ASTM, ISO, GIS, WIS, and DVS
- Pipe size entry in IPS, DIPS, OD, or JIS
- Wall thickness entry in DR or actual wall thickness
- Pressure entry in psi, bar, kg/cm², or MPa
- Heater temperature displays in °F when “psi” selected for pressure and °C otherwise.
- Timer counts up continuously. Tap to reset.
- Languages: English, Portuguese, Russian, Spanish, and Simplified Chinese
From version McCalc® 1.0.16:

Removed bead size limit for ISO 21307:2017 Single Low-Pressure HDPE fusion specification.


CAREL presents QuickFinder, the selection tool for refrigeration applications.

Fusion ePRO

Axiom Fusion eClinical Suite’s Mobile ePRO Data Capture

Rexton App

Rexton - remote Control for your hearing aid

Crestron Mobile Pro

The ultimate mobile control app for home, office, or classroom.

Danfoss Icon

Control Danfoss Icon hydronic floor heating from anywhere in the world.


Manage and connect to your Prosa IoT devices

Copeland™ Mobile

Emerson’s online product information for Copeland™ compressors

Gomellau0027s Neonatology

Pocke guide to treating common and rare problems in newborns--expanded & updated

LG Telepresence

The app to stream video of the issue(s) they’re experiencing in real-time.

T&D Thermo

Communicates with temperature/humidity data loggers for data download/viewing

QTc Calculator

Bazett's formula for calculating QTc interval.


Allows users to connect to their hearing aid and control hearing aid functions.


Allows users to connect to their hearing aid and control hearing aid functions.


Get your hearings aids fine-tuned anywhere

testo 330i App

For controlling the testo 330i flue gas analyzer and for report creation on site

testo Smart Probes

Smartphone. Smart Probes. Smart work.

testo Smart

Smart App for operating the Testo Manifolds and Smart Probes


Elios4you - Touch your Energy

HVAC Calculator Pro

Calculations used in HVAC systems engineering field

testo Combustion

App to show measure data from the analyzers testo 320, 324, 327, 330, 340, 350