Industrial Pressure Transmitters
Pressure measurement solutions for water, air, gas, oil and industrial equipment.
ACT designs and supplies application-matched pressure transmitters engineered for reliability in demanding operating conditions. Whether managing pump water hammer, compressor heat cycles, rolling stock vibration, or deep well hydrostatic head, our sensing approach starts with your real operating media—not merely a static catalogue page.
Four Flagship Platforms Configured for Your Application
ASPT11e OEM Pressure Transmitter
Water-hammer damped sensor for booster pumps, VFD drives & water utilities
GENUINE ACT HARDWARE- Constant pressure VFD booster pumps
- Water treatment & pumping stations
- Fire fighting hydro-pneumatic skids
ASPT11i Industrial Pressure Transmitter
Solid-state SS316L transmitter for heavy machine tools, hydraulics & compressors
GENUINE ACT HARDWARE- Hydraulic power packs & presses
- Screw compressors & air receivers
- Machine tools & process piping
ASPT11-i(R) Railway Pressure Transmitter
EN 50155 & EN 61373 compliant for rolling stock, brake control & auxiliary systems
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GENUINE ACT HARDWARE- Locomotive electropneumatic braking
- EMU coach water level tanks
- Pantograph air pressure regulation
ASPT11s Hydrostatic Level Transmitter
Submersible probe with vented cable for liquid column head measurement
GENUINE ACT HARDWARE- Groundwater borewells & tube wells
- Overhead water tanks & reservoirs
- Lift irrigation schemes & open sumps
Flagship Platform Comparison Matrix
Compare electrical, mechanical, and protection parameters across our four flagship platforms to determine the right fit for your application.
| Parameter | ASPT11eWater & Pumps | ASPT11iIndustrial SS316L | ASPT11rRailway EN 50155 | ASPT11sHydrostatic Level |
|---|---|---|---|---|
| Primary Application | Water booster pumps, VFD skids & utilities | Machine tools, hydraulics, air compressors | Railway rolling stock, brakes & coach tanks | Deep borewells, reservoirs & open sumps |
| Measurement Range | 0–10 / 16 / 40 bar | 0.1–250 bar (Custom spans available) | 1–250 bar | 0.5–200 mH2O (Up to 300m column) |
| Standard Accuracy | ±0.5% FS | ±0.25% FS / ±0.5% FS | ±0.5% FS | ±0.5% FS (Optional ±0.25%) |
| Wetted Materials | SS304 / SS316L isolation core | SS316L stainless steel welded cavity | SS316L heavy-duty stainless steel | SS316L probe head & diaphragm |
| Standard Signal Output | 4–20 mA (2-Wire) / 0.5–4.5 V Ratiometric | 4–20 mA (2-Wire) / 0–10 V / 0.5–4.5 V | 4–20 mA (2-Wire) / 0–10 V | 4–20 mA (2-Wire) / RS485 Modbus RTU |
| Overpressure Rating | 2.0× FS with pressure pulse damper | 2.0× FS proof / 3.0× burst margin | 2.0× FS proof pressure | 2.0× FS column overpressure |
| Ingress Protection | IP65 Enclosure | IP65 (DIN 43650-A) / IP67 (M12) | IP67 Heavy-duty railway sealed package | IP68 Submersible continuous immersion |
| Key Engineering Safeguard | Water-hammer internal restrictor / snubber | High overpressure margin & dynamic vibration isolation | EN 50155 / EN 61373 shock & vibration certification | Integrated atmospheric venting capillary tube |
| Process Connection | G1/4" (1/4" BSP) Male | G1/4", G1/2", 1/4" NPT Male | G1/4" Male / Railway-specific threaded port | Direct cable suspension with nose cone |
Organized by Measurement Architecture
Explore pressure instrumentation by operating principle—from atmospheric gauge and submersible level to low differential pressure and digital switches.
Gauge Pressure
Measures pressure relative to ambient atmospheric pressure. Most commonly used in pump discharge lines, hydraulic circuits, compressed air lines, and industrial machinery.
Hydrostatic Level
Continuous liquid head measurement in open tanks, deep borewells, clarifiers, and rivers by sensing the hydrostatic column pressure with an atmospheric venting capillary.
Differential Pressure (DP)
Measures the difference across two distinct pressure ports (High and Low). Essential for filter loading verification, cleanroom positive pressure isolation, and duct airflow.
Front-Flush Diaphragm
Zero dead-leg cavity design prevents media accumulation and clogging. Tailored for viscous food pastes, dairy CIP lines, paints, slurries, and crystallizing liquids.
Electronic Pressure Switches
Combines an on-site 4-digit LED digital display with dual programmable switching contacts (PNP/relay) and a continuous 4–20 mA loop for automated threshold tripping.
Precision Digital Gauges
Rugged battery-powered LCD reference gauges with peak hold and Min/Max recording for on-site field proofing, pipeline pressure testing, and hydraulic test benches.
Where Our Pressure Sensors Work
Select your operating sector below to view application-specific sensor recommendations, failure risks, and sizing checklists.
Water & Pump Systems
Pump discharge, VFD control, pipeline pressure & water hammer protection
Compressors & Compressed Air
Screw compressors, separator delta-P, air receiver tanks & dryers
Nitrogen Generators (PSA)
Adsorption bed cycling, buffer tank pressure & PSA skids
Railway Rolling Stock
Braking pneumatic circuits, water storage & EN 50155 compliance
HVAC & Chillers
Evaporator/condenser monitoring, refrigerant lines & cleanroom DP
Lift Irrigation & Deep Wells
Submersible hydrostatic level, canal pumping & tube wells
Automotive & Mobile Sensing
Engine test stands, EGR, fuel rail & mobile hydraulic circuits
Hydrogen & Gas Systems
Electrolyzer pressure, gas compression & high-purity pipelines
Reverse Osmosis (RO) Systems
High-pressure feed pumps, membrane delta-P & permeate monitoring
Have a Non-Standard Pressure Requirement?
Unlike corporate conglomerates with rigid catalogues, ACT works directly with you. Send us your target measurement span, process media, operating temperature, electrical interface, and mounting constraints. We will help you select or adapt the exact sensing configuration.
Tell Us Your Application
We'll help you select the sensor. Submit your operating parameters, media compatibilities, and electrical specs to consult our application engineering team.
GNP Galaxy, Plot No. F4/1, F4/2, Unit No. 28, Ground Floor,
Phase 2 Kansai, Ambernath Industrial Area, Ambernath West,
Thane - 421501, Maharashtra, India
Every sensor dispatched from ACT Sensors Pvt. Ltd. undergoes rigorous testing and individualized calibration certificates traceable to national metrological standards.