Differential Pressure Diaphragm Gauge for Liquids

  • Up to 3,000 psig line pressure
  • Available in gauge-switch combo, switch only, transmitter only, and gauge-transmitter combo versions
  • Class 1, Div. 1 rated

Specifications: 1504 Diaphragm DP

Model 1504 PDF Downloads: Specifications | Instructions | Drawing


DP Range Min

DP Range Max

Max Line Pressure

Max Line Temperature


Electrical Availability


PSID 0-10
bar 0-0.7
KPA 0-70

PSID 0-300
bar 0-20
KPA 0-2000

3000 psig
(200 bar)

176°F (80°C)


1 or 2 Switches
1 or 2 relays
Class 1 Div. 1

How To Order

Select from each of the applicable categories to construct a model number, and configure your instrument. Click the button to request a quote or for more information. If you are reordering you must supply the Part Number from your instrument label. Contact Orange Research or local Orange Research distributors for additional options and pricing information. Please Note: Other Ranges and Measurement Units are available than appear below; specify your needs in the comments box below.


Sample configuration: Gauge (w/ switch option): 1504DGS-1A-3.5B-A-0-15 psid-PL, switch to close at 10 psid asc.
Fields with * are Required.

Buna is Standard
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Popular Options

We can customize parts to your specific needs, with features including:

• Red Arc
• Liquid Filled
• Follower Pointer
• Flanged Dial Case
• … and more

More Options →

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Photos: Explosion Proof DP

Explosion Proof Family

1504 Front

1504 Side

WARNING: Some of our products contain Nickel, a chemical known to the State of California to cause cancer. For more information go to: www.p65warnings.ca.gov

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