Free
Davis
Instruments
V78
Sourcebook
Browse over 116 pages of pressure and vacuum instruments for your lab, process, and manufacturing needs. Davis Instruments is a leading supplier of digital pressure gauges, and we carry the top brands, including Ashcroft, Wika, Mid-West Instruments, Druck, Crystal Engineering, and Dwyer.
Request your copy today.

Custom Ordering Solutions
Custom Ordering Solutions
Let us find the exact product you need. We have access to suppliers full lines - for products beyond what you see here. Call 1-800-358-5525
 

Gauges - Differential

Gauges - Differential
Differential pressure gauges give the relative pressure between two points. If both operating pressures are the same, the measuring element cannot move and no pressure will be indicated. A differential pressure is indicated when one pressure is higher or lower. Low differential pressures can be measured directly in cases of high static pressures.

Davis Instruments has an industry-leading selection of differential pressure gauges for process, manufacturing, and HVAC-R applications. Choose from leading manufacturers such as Mid-West, Dwyer, and Ashcroft Instruments.

Mid-West Instruments, located in Sterling Heights, MI is one of the leading designers and manufacturers of differential pressure gauges and switches in the U.S. The experienced engineers and technicians utilize the latest equipment for engineering, manufacturing and testing the gauge and switch products. All Mid-West Instrument products are manufactured in the United States and are backed by an industry leading Five (5) Year Warranty. Oil, Gas, Water, Chemical, Petrochemical, Power Generation and Gas Liquidification are a few of the industries served. Features and benefits:

  • Differential Pressure Ranges Available for Liquids or Gases
  • Standard or Custom Dial Scales
  • Wide Variety of Materials
  • From Low Cost Differential Pressure Indicators to High Accuracy Differential Pressure Gauges

    Dwyer Instruments was founded in 1931 and is one of the largest manufacturers of competitively priced precision instruments. Select the Magnehelic gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer's simple, frictionless Magnehelic gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It's inexpensive, too. The Magnehelic gage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment.

    For over 150 years, Ashcroft Instruments has set the standards for accuracy, quality, and dependability in pressure and temperature measurement. With products to suit virtually any application, Ashcroft differential pressure gauges are specified and trusted around the world for the most demanding requirements. In chemical processing, oil refineries, power plants, pharmaceutical, food, and industrial equipment applications, the Ashcroft trademark is the industry standard for performance and reliability.

    To help you find the right differential pressure gauge for your application, contact our Application Specialists for free technical support. Let our experts help you find the right differential pressure gauge. Davis Insruments has over 75 years of experience in finding the right products for our customers.

  • Still have questions
    Contact Our Experts
    for FREE product
    application selection
    and support.
    or call 1-800-358-5525
     Product Detail
    Sort
     Availability
     Price
    Representative photo only Mid West 122 Piston Type 2 5 Differential Pressure Gauge 20 psi Al

    Mid-West 122, Piston Type 2.5" Differential Pressure Gauge, 20 psi, Al

    Product Type Differential gauges,Range 0 to 20 PSID,Dial size " Dia 2.5
    Mfg Part#
    DO-68402-43
    Usually ships in 7 days.
    $124.50 USD/EACH

    Qty:

    Representative photo only Wika 4375862 4 5 Differential Pressure Gauge 0 15 psid

    Wika 4375862, 4.5" Differential Pressure Gauge, 0-15 psid

    Product Type Differential gauges,Range 0 to 15 psi,Dial size " Dia 4.5
    Mfg Part# 4375862
    DO-68056-44
    Usually ships in 13 days.
    $1,986.00 USD/EACH

    Qty:

    DO-68462-68 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 0 to 10 Inh2O

    Dwyer Magnehelic Differential Pressure Gauge, 0 to 10 Inh2O

    Product Type Differential Pressure Gauges,Range 0 to 10.0" H2O,Brand Dwyer
    Mfg Part#
    DO-68462-68
    In stock.
    $64.00 USD/EACH
    $51.20 USD/EACH

    Qty:

    DO-68064-00 CRYSTAL ENGINEERING DIGITAL DIFFERENTIAL GAUGE

    Crystal XP2I-DP, Digital Differential Pressure Gauge, 15 psi

    Product Type Digital differential gauges,Output RS-232,Range 15 psi
    Mfg Part# 15PSIXP2I-DP
    DO-68064-00
    Call 1-888-358-4712 for availability.
    $2,030.00 USD/EACH

    Qty:
    See all

    Representative photo only 4020 Capsuhelic 0 20 Inh2O Differential P Gauge

    4020:Capsuhelic 0/20 Inh2O Differential P Gauge

    Product Type Differential pressure gauges,Range 0 to 20" H2O,Dial size " Dia 4
    Mfg Part#
    DO-68462-37
    Usually ships in 13 days.
    $389.00 USD/EACH
    $311.20 USD/EACH

    Qty:

    DO-68062-02 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2000: 0-0.25

    Dwyer Magnehelic Differential Pressure Gauge, 2000: 0.05-0.20" WC

    Product Type Differential gauges,Range 0 to 0.25" H2O,Dial size " Dia 4
    Mfg Part#
    DO-68062-02
    In stock.
    $75.00 USD/EACH
    $60.00 USD/EACH

    Qty:

    DO-68062-18 Dwyer Minihelic Differential Pressure Gauge, 0-5.0" WC

    Dwyer Minihelic Differential Pressure Gauge, 0-5.0" WC

    Product Type Differential gauges,Range 0 to 5.0" H2O,Dial size " Dia 3
    Mfg Part#
    DO-68062-18
    Usually ships in 4 days.
    $57.00 USD/EACH
    $45.60 USD/EACH

    Qty:

    DO-68462-76 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2310: 5/0/5 inh2O

    Dwyer Magnehelic Differential Pressure Gauge, 2310: 5/0/5 inh2O

    Product Type Differential Pressure Gauges,Range 5 to 0 to 5" H2O,Brand Dwyer
    Mfg Part#
    DO-68462-76
    Usually ships in 6 days.
    $74.00 USD/EACH
    $59.20 USD/EACH

    Qty:

    DO-68062-08 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2002: 0-2.0

    Dwyer Magnehelic Differential Pressure Gauge, 2002: 0-2.0" WC

    Product Type Differential gauges,Range 0 to 2.0" H2O,Dial size " Dia 4
    Mfg Part#
    DO-68062-08
    In stock.
    $73.00 USD/EACH
    $58.40 USD/EACH

    Qty:

    DO-68405-00 Differential Pressure Indicator, 0 To 3.5 PSId; Glass-filled Nylon Body With 1/4" NPT(F) End Connections

    Mid-West 555A, Differential Pressure Indicator, 3.5 psid

    Product Type Differential gauges,Range 0 to 3.5 psid,Dial size " Dia 2.5
    Mfg Part#
    DO-68405-00
    Usually ships in 7 days.
    $61.00 USD/EACH

    Qty:

    DO-68462-67 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2003: 0/3.0 Inh2O

    Dwyer Magnehelic Differential Pressure Gauge, 2003: 0/3.0 Inh2O

    Product Type Differential Pressure Gauges,Range 0 to 3.0" H2O,Brand Dwyer
    Mfg Part#
    DO-68462-67
    In stock.
    $64.00 USD/EACH
    $51.20 USD/EACH

    Qty:

    DO-68062-00 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2000: 0.05-0.20

    Dwyer Magnehelic Differential Pressure Gauge, 2000: 0.05-0.20" WC

    Product Type Differential gauges,Range 0.05 to 0.2" H2O,Dial size " Dia 4
    Mfg Part#
    DO-68062-00
    Usually ships in 2 days.
    $79.00 USD/EACH
    $63.20 USD/EACH

    Qty:

    DO-68062-10 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 2005: 0-5.0

    Dwyer Magnehelic Differential Pressure Gauge, 2005: 0-5.0" WC

    Product Type Differential gauges,Range 0 to 5.0" H2O,Dial size " Dia 4
    Mfg Part#
    DO-68062-10
    In stock.
    $68.00 USD/EACH
    $54.40 USD/EACH

    Qty:

    DO-68462-59 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 20000AV: 0/.50 InWC

    Dwyer Magnehelic Differential Pressure Gauge, 20000AV: 0/.50 InWC

    Product Type Differential Pressure Gauges,Range 0 to 0.50" H2O,Brand Dwyer
    Mfg Part#
    DO-68462-59
    Usually ships in 7 days.
    $89.00 USD/EACH
    $71.20 USD/EACH

    Qty:

    DO-68462-75 Representative Photo Only.  Dwyer<small><sup>&reg;</sup></small> Magnehelic Differential Pressure Gauge, 23000: .25/0/.25 Inh2O

    Dwyer Magnehelic Differential Pressure Gauge, 23000: .25/0/.25 Inh2O

    Product Type Differential Pressure Gauges,Range 0.25 to 0 to 0.25" H2O,Brand Dwyer
    Mfg Part#
    DO-68462-75
    Usually ships in 7 days.
    $74.00 USD/EACH
    $59.20 USD/EACH

    Qty:

    700 results (showing 1 - 15 )
    Per Page