Pressure Transmitter Solutions – Miniature, Pencil-Type, Smart & Hygienic Transmitters
Pressure transmitters are among the most essential instruments in modern industrial automation, providing continuous, accurate, and reliable pressure measurement across liquids, gases, steam, and hydraulic systems. They convert applied pressure into a standardized electrical output—typically 4–20 mA, HART, Modbus, or IO-Link—and integrate seamlessly with PLC, SCADA, and DCS systems for real-time control and monitoring.
At NPK Industries, we supply a complete portfolio of miniature pressure transmitters, pencil-type pressure transmitters, smart process pressure transmitters, and hygienic pressure transmitters, sourced from globally trusted brands including Baumer, WIKA, Honeywell, Siemens, and Schneider Electric. Our solutions support industries such as water treatment, oil & gas, chemical processing, food & beverage, pharma, power generation, HVAC, OEM machine building, and hydraulic automation.
Miniature Pressure Transmitters
Pencil-Type Pressure Transmitters
Smart Pressure Transmitters
Hygienic Pressure Transmitters
Miniature Pressure Transmitters
Models:
- Baumer: CTX, PP20S
- WIKA: O10
Miniature pressure transmitters are compact, lightweight, and robust sensors designed for applications where installation space is extremely limited. These transmitters deliver high accuracy and durability despite their small footprint and are ideal for OEM machines, compact hydraulic systems, compressors, pneumatic skids, robotic tooling, and medical equipment.
Baumer CTX & PP20S – Features & Technical Highlights
Baumer’s miniature series combines advanced thin-film and piezoresistive sensing technology with a fully welded stainless-steel design.
Key characteristics include:
- Measuring ranges from 0…1 bar to 0…600 bar
- Fast response time (< 5 ms)
- High overpressure safety and low long-term drift
- Output options: 4–20 mA, 0–10 V, ratiometric, IO-Link (PP20S)
- High vibration and shock resistance
- Excellent EMC immunity for use near VFDs and solenoid valves
- Temperature rating from –40°C to +125°C
- Compact housing for OEM and mobile hydraulics
The PP20S miniature IO-Link transmitter adds digital communication for smart condition monitoring in Industry 4.0-ready equipment.
WIKA O10 Miniature Pressure Sensor
WIKA O10 is engineered for OEMs needing cost-effective yet durable pressure measurement.
Core advantages:
Stainless steel welded measuring cell
Ranges up to 1000 bar
High repeatability and stability
Suitable for hydraulics, pneumatic actuators, energy systems, and mobile vehicles
Broad electrical connector selection—M12, Deutsch, cable outlet
Miniature transmitters solve challenges where traditional pressure transmitters cannot be mounted due to space constraints, ensuring precision without compromising design flexibility.
Pencil-Type Pressure Transmitters
Models:
- Baumer: Y91, Y92
- WIKA: S10, S11, IS3, A10, S20
Pencil-type pressure transmitters are designed in a slim, compact cylindrical form factor, ideal for installations where tight mounting spaces, narrow pipelines, or instrument clusters require a low-profile sensor. They are widely used in mechanical skids, compressor packages, nitrogen banks, hydraulic presses, industrial air dryers, and ammonia refrigeration systems.
Baumer Y91 & Y92 – Slim Industrial Pressure Transmitters
Baumer Y-series transmitters provide:
- Slim pencil-style construction for deep or recessed mounting
- Stainless steel welded measuring cell (no O-ring)
- Ranges up to 600 bar suitable for hydraulic and pneumatic systems
- Fast dynamic response suitable for pulsating pressure
- Output: 4–20 mA or voltage-based signals
- High EMC immunity and low hysteresis
- Optional flush diaphragm (Y92) for viscous or crystallizing media
Their ruggedness makes them suitable for compressors, injection molding machines, gas boosters, and process utilities.
WIKA Pencil-Type Pressure Transmitters
WIKA is globally recognized for its robust and precise pencil-type sensors.
A10 – Industrial economical pressure transmitter for general automation
S10 – Premium transmitter with high stability and broad configurability
S11 – Flush diaphragm version for viscous and contaminated fluids
IS3 – Intrinsically safe transmitter for hazardous areas
S20 – High-performance, premium-grade transmitter with extended accuracy
Typical applications include:
- Compressors & blowers
- Water & wastewater skids
- Furnace pressure monitoring
- Refrigeration & ammonia plants
- Hydraulic power packs
- Boiler feed pump control
These transmitters offer high signal integrity, EMI resistance, compact design, and compatibility with multiple industrial process connections like G¼, NPT, and flush diaphragm variants
Smart Pressure Transmitters
Models:
- Honeywell: STG74S, STD725, STD735
- Siemens: 7MF0300, 7MF0340
- Schneider: IGP05S, IGP10S, IAP10S, IDP102, IDP50S, IMV31
Smart pressure transmitters are advanced instruments designed for critical process control, featuring microprocessor-based measurement, digital compensation, diagnostics, and communication protocols such as HART, FOUNDATION Fieldbus, and Modbus RTU.
These transmitters excel in:
- High-pressure, high-temperature processes
- Steam, hydrocarbon, boiler & chemical applications
- Differential pressure flow measurement
- Liquid level and interface measurement
- High-accuracy and SIL-compliant safety applications
Honeywell SmartLine Series
Honeywell SmartLine transmitters are known for their precision and stability:
- Accuracy up to ±0.05% of span
- Stability: 0.01% per year
- Temperature compensation
- Modular electronics for easy maintenance
- Advanced diagnostics with HART 7
- Wide turndown ratios (100:1 and above)
- Explosion-proof and intrinsically safe versions
STG series → Gauge pressure
STD series → Differential pressure
STD735 → High accuracy, high-turndown DP transmitter
These transmitters are used in refineries, power plants, sugar plants, fertilizer units, and chemical dosing systems.
Siemens 7MF0300 & 7MF0340 – SITRANS Series
Siemens SITRANS pressure transmitters deliver exceptional performance across heavy-duty process industries.
Key features:
- High accuracy and repeatability
- Process monitoring with built-in diagnostics
- Stainless steel fully welded measuring cell
- IP67 / IP68 protection
- Fast response time and strong EMC immunity
- HART communication and SIL2/SIL3 safety approvals
SITRANS transmitters perform remarkably well in steam lines, condensate systems, filters, separators, pumps, reactors, and water treatment systems.
Schneider Electric Pressure Transmitters
Schneider’s Foxboro series is known for rugged reliability.
- IGP series → Gauge pressure
- IAP series → Absolute pressure
- IDP series → Differential pressure
- IMV series → Multivariable pressure (DP + static pressure + temperature)
Technical strengths include:
- Accuracy down to ±0.04%
- Long-term stability of 0.02% span per year
- SIL2/SIL3 safety compliance
- Heavy-duty stainless-steel process housing
- Advanced self-diagnostics
- Multivariable compensation for flow measurement
These instruments are widely used in boiler drum level, turbine control, steam condensate systems, filters, chemical reactors, hydrocarbon pipelines, and industrial flow metering
Hygienic Pressure Transmitters
Models:
- Baumer: Clever Level PFMN, PFMH
Hygienic pressure transmitters are specially designed for food, beverage, dairy, pharmaceutical, biotechnology, and cosmetic industries where contamination-free measurement is mandatory. These instruments feature flush stainless-steel diaphragms, hygienic process connections (Tri-Clamp, DIN 32676, SMS), and compliance with EHEDG, FDA, and 3-A sanitary standards.
Baumer PFMN & PFMH – Hygienic Pressure Transmitters
Baumer Clever Level series transmitters are among the finest sanitary-grade transmitters in the industry.
Key features:
- Fully welded stainless-steel diaphragm
- No elastomer O-rings → zero contamination risk
- CIP & SIP compatible (up to 150°C)
- Accurate pressure measurement for clean media
- Resistant to cleaning agents and disinfectants
- Digital output options including IO-Link
- High repeatability for precision batching, dosing & filling lines
PFMN – General hygienic pressure measurement
PFMH – Advanced model for dairy, pharma, fermentation, bioprocess tanks
Application areas:
- Milk processing & pasteurization
- Clean steam lines
- Sterile fermentation reactors
- Beverage filling machines
- Bioprocessing skids
- Purified water systems
- CIP/SIP circulation lines
Importance of Choosing the Right Pressure Transmitter
Different industrial applications demand different transmitter technologies. Selecting the correct transmitter ensures:
- High measurement accuracy
- Longer equipment life
- Reduced downtime
- Energy-efficient system operation
- Process safety and reliability
- Compliance with regulatory standards
- Cost savings in maintenance
At NPK Industries, we guide clients throughout the selection process based on:
- Pressure range
- Media type
- Temperature & pressure conditions
- Vibration, EMIs & electrical noise
- Sanitary/hygienic compliance requirements
- Hazardous area classification
- Communication protocol (analog or digital)
Applications Across Industries
Pressure transmitters from Baumer, WIKA, Honeywell, Siemens, and Schneider support a wide range of industries:
Water Treatment
Pump pressure, reverse osmosis systems, sludge handling, filtration.
Chemical & Petrochemical
Reactors, distillation columns, heat exchangers, solvents.
Oil & Gas
Skids, flowlines, separators, compressors.
Power Plants
Boiler drum, feedwater, turbine oil systems.
Pharmaceutical & Biotech
Sterile tanks, WFI systems, fermentation.
Food & Beverage
Milk processing, pasteurizers, filling and dosing equipment.
HVAC & Refrigeration
Ammonia plants, chillers, cooling towers.
OEM & Machine Manufacturing
Hydraulic presses, air compressors, robotics.