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Differential Pressure Plus, Inc., has established itself as the leading manufacturer of high-quality,
low-cost differential pressure indicators for the filtration industry.
Our new line of high-precision, high-pressure instrumentation expands our capability
into the 2% gauge accuracy range. Through innovative design and manufacturing methods,
these new products firmly establish our price and quality leadership in this specialty industry.
Every precision gauge on this web site is individually tested and serialized.
Certification of calibration is available.
Our improved, close-coupled magnetic rack and pinion design uses high-quality magnets
to achieve superior accuracy and the most linear scales in the industry.
Our gauges are calibrated in the ascending pressure mode for the most common applications
such as filtration monitoring. For special requirements, such as leak detection,
we can calibrate the gauges in descending mode.
Click on Model's Name or Image for More Info
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: Minor from high to low port
Range-: 0-5 to 0-150 psi or equivalent range in other units
First Marking on The Scale-: 20% of the FSD
Sensing Element-: Piston
Wetted Parts-:
Body material, SS 302 Spring, Teflon, & Ceramic Magnet
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 2"(50), 2.5"(63), 3.5"(80), 4"(100), 4.5"(115) & 6"(150)
Mounting-: Direct, front flange & 2" pipe mounting
Maximum Working Pressure-: 3000/6000 psi. (3000 psi for Alu. & 6000 psi for SS body)
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS 316 & ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: As per the model selected
Range-: As per the model selected
First Marking on The Scale-: 15 or 20% of the FSD, depending on the model selected
Sensing Element-: As per the model selected
Wetted Parts-: As per the model selected
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 3.5" (80), 4" (100), 4.5" (115) & 6.0" (150)
Mounting-: As per the explosion proof box drgs
Maximum Working Pressure-:
As per the model selected
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS 316
Seals/Diaphragms-: Buna-N, Viton, ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: No migration : Zero leakage from high to low port
Range-: 0-5 to 0-100 psi or equivalent ranges in other units
First Marking on The Scale-: 15% of the FSD
Sensing Element-: Diaphragm
Wetted Parts-: Diaphragm, body material, SS 302 Spring & Ceramic Magnet
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 2.5" (63), 3.5" (80), 4.5" (115) & 6.0" (150)
Mounting-: Direct, front flange & 2" pipe mounting
Maximum Working Pressure-:
3000 psi
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS 316
Seals/Diaphragms-: ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: As per the model selected
Range-: As per the model selected
First Marking on The Scale-: 15 or 20% of the FSD, depending on the model selected
Sensing Element-: As per the model selected
Wetted Parts-: As per the model selected
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 3.5" (80), 4" (100), 4.5" (115) & 6.0" (150)
Mounting-: As per the explosion proof box drgs
Maximum Working Pressure-:
As per the model selected
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS 316
Seals/Diaphragms-: Buna-N, Viton, ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: No migration : Zero leakage from high to low port
Range-: 0-1 to 0-60 psi or equivalent ranges in other units
First Marking on The Scale-: 15% of the FSD
Sensing Element-: Diaphragm
Wetted Parts-: Diaphragm, body material, SS 302 Spring & Ceramic Magnet
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 2.5" (63), 3.5" (80), 4" (100), 4.5" (115) & 6.0" (150)
Mounting-: Direct, front flange & 2" pipe mounting
Maximum Working Pressure-:
1500 psi
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: As per the model selected
Range-: As per the model selected
First Marking on The Scale-: 15 or 20% of the FSD, depending on the model selected
Sensing Element-: As per the model selected
Wetted Parts-: As per the model selected
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 3.5" (80), 4" (100), 4.5" (115) & 6.0" (150)
Mounting-: As per the explosion proof box drgs
Maximum Working Pressure-:
As per the model selected
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, Brass, SS 316
Seals/Diaphragms-: Buna-N, Viton, ...
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Accuracy-: ±2% of the FSD (Ascending)
Migration-: No migration : Zero leakage from high to low port
Range-: 0-25 to 0-600 mm H2O or similar ranges in other units
First Marking on The Scale-: 15% of the FSD
Sensing Element-: Diaphragm
Wetted Parts-: Diaphragm, body material, SS 302 Spring & Ceramic Magnet
Case Material-: Stainless Steel (SS 304)
Dial Size in Inch (mm)-: 3.5" (80), 4" (100), 4.5" (115) & 6.0" (150)
Mounting-: Direct, front flange & 2" pipe mounting
Maximum Working Pressure-:
500 psi
Maximum Process Temperature-: 175ºF/80ºC
Body Material-: Aluminum, SS ...
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Accuracy: ±5% of FSD (Ascending)
Migration: No migration ; Zero leakage from high to low port
Range: 0-0.75 upto 2 bar/psi dual scale
First marking on the scale 15% of the FSD
Sensing element: Diaphragm
Wetted parts: Body material, SS 302 spring, diaphragm & ceramic magnet
Case material: Stainless steel (SS 304)
Dial size in inch (mm): 2.5”(63)
Mounting: Direct
Maximum working pressure: 100 bar.
Maximum process temperature: 800 C
Body material: Aluminium
Seals: Buna-N, Viton diaphragm &”O” rings
Window: Acrylic
Connection: 1/4” NPT(F) Std. optional 1/4”
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