Select from our premium CE-marked portfolio engineered for extreme operating environments, fluid dynamics, and accurate system safety control.
In complex thermal dynamic processes, real-time simultaneous tracking of both fluid media temperature and systemic hydraulic pressure is vital. A CE-certified combination gauge (also referred to as a Tridicator or dual-parameter gauge) merges two fundamental thermodynamic sensing elements into a single hermetically sealed dial housing.
Combining a helically coiled bimetallic thermometric strip with a C-type or helical Bourdon tube made from AISI 316L Stainless Steel. The thermometric expansion moves a coaxial pointer shaft while hydraulic pressure deflects the Bourdon tube, guaranteeing zero mutual mechanical interference.
Thermal energy conduction from high-temperature boilers or steam pipelines can skew electronic transducers or degrade dial dampening oils. Advanced combination gauges feature isolated stem wells and ceramic heat barriers to shield pressure-sensing diaphragms.
Utilizing high-purity glycerin or silicone fluid filling inside IP65/IP67 rated enclosures. Damping protects pointer gear mechanisms against severe mechanical shock, hydraulic water hammer, and pump-induced low-frequency vibrations.
| Parameter | Standard Industrial Grade | CE High-Precision Heavy Industrial | Extreme Sanitary / Explosive Line |
|---|---|---|---|
| Pressure Range Options | 0 to 6 Bar / 0 to 10 Bar (100 PSI) | -0.1 to 40 Bar (-30 inHg to 600 PSI) | 0 to 100 Bar / Custom Scale |
| Temperature Range | 0°C to +120°C (30°F to 250°F) | -40°C to +200°C (-40°F to 400°F) | -50°C to +400°C (Ultra-Low to High Heat) |
| Accuracy Class (EN 837-1/13190) | Pressure: ±2.5%, Temp: ±2.0% | Pressure: ±1.6% or ±1.0%, Temp: ±1.0% | Pressure: ±0.5% (Transducer), Temp: ±1.0% |
| Wetted Parts Metallurgy | H59/H62 Copper Alloy Brass | AISI 316L Stainless Steel / Monel 400 | Hastelloy C-276 / PTFE Coated SS316L |
| Ingress Protection Rating | IP44 / IP54 | IP65 / IP67 Hermetically Sealed | IP68 / ATEX Ex d IIC T6 Gb |
| Process Connection Threads | 1/4" NPT / 1/2" NPT Male | G 1/4", G 1/2", M20×1.5, Tri-Clamp | Flanged / Hygienic Sanitary Fittings |
Securing full CE certification for dual-parameter instrumentation sold across the European Economic Area (EEA) demands compliance with stringent directives. At Huzhou Accuracy Instrument Co., Ltd., our dual pressure-temperature indicators undergo rigorous validation under European harmonized standards.
Ensures sound engineering practice (SEP) and Category I/II safety standards for pressure equipment operating above 0.5 bar. Pressure fatigue cycle tests exceed 100,000 continuous full-scale pulses.
Mandatory calibration standards governing dial scale arcs, pointer inertia balance, pointer backlash, safety blow-out back disc design, and thermal hysteresis limits.
For dynamic digital pressure transducers and bi-metal gauges fitted with electrical switch contacts, meeting Directive 2014/30/EU and Directive 2014/34/EU prevents spark ignition hazards in explosive atmospheres.
How CE-certified combination temperature and pressure gauges optimize operations across distinct regional markets and hazardous industrial sectors.
Widely deployed across European and North American municipal and residential boiler setups. These gauges provide clear dual readings on a single face plate, preventing dry-boil accidents, over-pressurization, and thermal stress cracks while drastically reducing pipe tapping costs.
In harsh Middle Eastern refineries and North Sea offshore rigs, sour oil (H2S gas) and salt fog demand SS316L or Monel wetted components. Combination gauges continuous tracking of line friction heat and system hydraulic load ensures early leak detection and explosion avoidance.
Critical electrical substations require continuous tracking of Sulfur Hexafluoride (SF6) insulation gas. Gas density changes directly with temperature; our specialized SF6 combination monitors compensate for temperature variations to maintain rated arc-quenching pressures.
Biotech reactors and dairy pasteurization skids utilize sanitary Tri-Clamp combination transmitters with electropolished surfaces (Ra < 0.4 μm). These units withstand high-temperature Clean-In-Place (CIP) and Sterilization-In-Place (SIP) thermal shocks without zero-point drift.
Handling ultra-low temperatures down to -196°C for LNG or hydrogen transport requires specialized embrittlement-resistant alloys. Laser-welded diaphragm seal technology prevents hydrogen permeation and protects delicate internal mechanical sensors.
Installed on heavy diesel engine cooling manifolds and exhaust lines. Shockproof oil-filled construction protects indicator needles from intense engine vibrations, preventing mechanical fatigue and extending operational life.
How direct factory partnerships deliver superior price-to-performance metrics, advanced material engineering, and rapid global distribution capabilities.
Unlike assemblers who outsource components, our Huzhou manufacturing plant handles raw material forging, precision CNC thread machining, hairspring heat treatment, dial printing, automated laser welding, and high-vacuum oil filling in-house. This vertical setup eliminates middleman markups and guarantees consistent quality.
We provide comprehensive custom engineering for global distributors and equipment manufacturers. From customized dial logo branding, specific pressure/temperature scales (Bar, PSI, kPa, °C, °F), capillary lengths, stem positioning (bottom direct mount, center back mount), to explosion-proof switch wiring.
Exploring the convergence of traditional mechanical gauges with digital smart telemetry, IIoT connectivity, and predictive maintenance algorithms.
Future combination gauges will integrate low-power LoRaWAN, NB-IoT, and WirelessHART modules directly into the gauge enclosure. This enables remote transmission of dual-parameter data to cloud monitoring platforms while retaining local mechanical dials for manual emergency backup.
Merging micro-fused silicon piezoresistive pressure technology with digital RTD temperature sensors. Micro-processor units run real-time thermal expansion mathematical models, compensating for sensor drift and maintaining ±0.25% FS accuracy across wide temperature ranges (-40°C to +150°C).
Transitioning to biodegradable synthetic damping fluids that exhibit near-zero viscosity change across extreme temperature gradients, eliminating needle sluggishness in frigid conditions and fluid leakage in high-heat environments.
Our dedicated R&D department (20 specialists), production team (120 skilled technicians), and global service team (15 professionals) guarantee total quality compliance under ISO 9001:2008 and ISO 17025 laboratory standards.
Verified quality management, ISO approvals, and European CE compliance certificates.
Explore our full lineup of specialized pressure transmitters, SF6 density monitors, and electric contact switches built for industrial automation.
Accuracy Instrument