• 1490 Low Pressure Diaphragm Gauge
    1490 Low Pressure Diaphragm Gauge

Click image to enlarge

1490 Low Pressure Diaphragm Gauge

  • Overview
  • Applications
  • Certificates & Approvals

The Ashcroft® 1490 diaphragm gauge is an economical solution for low pressure measurement. This model provides reliability and performance due to its ultra-sensitive diaphragm measuring system. An ideal product for non-corrosive gas measurement. Not suitable for liquids.

Key Features:
  • Easily removable window for small zero adjustments
  • Accuracy: ±2-1-2% full scale (ASME B40.100 Grade A)
  • Pressure Ranges: 10" IWC to 15 psi
  • Dial size: 2-1/2" and 3-1/2"
  • Case: glass-filled polysulfone; open front
  • Diaphragm system / socket: phosphor bronze

The 1490 pressure gauge is ideal where safe and reliable low pressure measurement is essential:

Industrial Market:
  • Vacuum Pumps
  • Air Compressors
  • Filters
  • Gas Measurement; Burners and Leak Detectors
  • Vacuum Ovens
  • Specialized OEM Equipment
Medical and Life Sciences:
  • Suction Regulators and Respirators

Related Products

1188 Low Pressure Bellows Gauge

1188 Low Pressure Bellows Gauge

With it's standard phenolic case, this popular low pressure gauge like the 1140 series gauges are available with diaphragm seals to meet the many media compatibility challenges in the process market.

1495 Low Pressure Diaphgram Gauge

1495 Low Pressure Diaphragm Receiver Gauge

The Ashcroft® 1495 diaphragm receiver gauge is an economical solution for pneumatic receiver gauges.


  • Distributor Locator

    Locate an authorized Ashcroft distributor in your area.

  • Materials Selector

    Use the selector to review compatible wetted materials and requirements of your application.

  • Unit Converter

    Need to convert measurement units? Check out our quick and easy approach to pressure, temperature and flow unit conversions.

Frequently Asked Questions

Get quick answers to common questions. Choose your topic:

See all FAQs »