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Technical Information


Welcome to Tech Info ONLINE.

Ashcroft strives to provide our customers– past, present and future, with pertinent, precise, and helpful information about all our products.  Wondering which Ashcroft pressure or temperature instruments are suited to your application? The Technical Library contains information about our products that will help you find the perfect instrument for your needs.

NEW!  Ashcroft Ordering Handbook,  OH-1 (2013) - NOTE: THIS FILE IS 26 MB AND WILL TAKE TIME TO DOWNLOAD


Gauge and Instrument Product Info Pages by Category/Topic
Product Information Pages by Page Name


NEW!  Custom Transducer Capabilities, TC-1

Corrosion Guide

Selection Guide:  Seven Steps to Pressure Gauge Selection
Selection Guide:  Ten Steps to Selecting A Diaphragm Seal
Selection Guide:  DPG-1 Quick Guide for Selecting A Differential Pressure Gauge
Selection Guide:  TH-1, Eight Steps to Thermowell Selection
Selection Guide:  EPRG-1, Electronic Products Reference Guide

Quick Guide:  Ashcroft Digital Gauge Family

Patented PLUS! Performance Option Data Sheet, PL-1

NEW!  Ashcroft Quick Guide, QG-1, for quick product reference and information
(pdf 7.4 MB)

How Gauges Can Protect Your Pumps, Flow Control Magazine article (pdf)
Pressure Gauge Installation, Operation & Maintenance Manual (pdf)

Products for Sanitary Service Brochure, SAN SERV-1 (pdf)
Instrumentation for Water Treatment and Waste Water Industries Brochure, WW-1
Instrumentation for Air Conditioning, Heating and Refrigeration Industries Brochure, AHR-1 (pdf)


Click here to visit our You Tube Channel for:

NEW! • Types 80 and 81 isolation spool
• Features of the DG25 digital pressure gauge
• Features of the DM61 digital panel meter
• Ashcroft Patented PLUS!™ Performance (English & Portuguese)
• Basic Calibration Procedures for Pressure Switches (English & Portuguese)
• Calibration Procedures for Differential Pressure Switches (English)
• Calibration Procedures for L & G Series Switches with dual set points (English)
• Calibration Procedure for L & G Series Switches with adjustable deadband (English)
• Calibration Procedure for P Series Switch with dual set points (English)
• Calibration Procedure for P Series Switch with adjustable deadband (English)
• Calibration Procedures for A Series Pressure Switches (English)
• Calibration Procedures for B Series Pressure Switches (English & Portuguese)
• Calibration Procedures for H Series Pressure Switches (English)
• Calibration Procedures for  L & G Series Pressure Switches (English & Portuguese)
• Calibration Procedures for N Series Pressure Switches (English)
• Calibration Procedures for P Series Pressure Switches (English & Portuguese)
• DG25 Digital Gauge Videos featuring Basic Features (long & short versions),
  Basic Operation & Programing, Custom Units, Field Recalibration,
  Programming Customization




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Have a question...application, price, delivery? When you need it the Ashcroft ActionLine® at 800-328-8258.

JOIN THE ASHCROFT TEAM! Visit our Career page to view open positions with Ashcroft.
And click here to learn about our Territory Manager opportunities in Texas and Ohio!

Need some help selecting a pressure gauge?

Need some basic gauge selection criteria Our easy "Seven Steps To Selecting A Pressure Gauge" will help you...just click here.

When it's all about the highest possible accuracy...

Heise® precision pressure gauges, digital indicators and transducers offer state-of-the-art features with accuracies from +/- 0.1% to 0.02% FS. Check out the Heise® instrument line at

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