Engineered for explosive gas atmospheres (Zone 1, Zone 2) and severe vibration conditions across Polish industrial sites.
Addressing strict European Union ATEX directives, PN-EN standard alignment, and critical safety protocols across Poland's expanding energy infrastructure.
Designed with heavy-duty cast aluminum or stainless steel Ex d flameproof enclosures. Capable of containing internal electrical sparks, preventing ignition in surrounding volatile atmospheres (gas groups IIA, IIB, IIC).
Features high-load magnetic snap-action contact points (Ag-Ni or Gold-plated). Prevents contact arcing, chatter, and erosion during mechanical vibration, maintaining stable limit signal outputs for automated PLC trips.
Hermetically sealed IP65/IP67 protection housings filled with silicone oil or glycerine. Resists rapid pressure pulsations, corrosive process media, sub-zero Polish winter ambient temperatures (-40°C to +60°C).
Precision pressure control solutions mapped directly to Poland's energy transformation, chemical manufacturing, and heavy engineering networks.
In the Upper Silesian Industrial Region (Górnośląski Okręg Przemysłowy), underground methane drainage and coal bed gas capture require strict intrinsically safe and flameproof instrumentation. Our Ex d magnetic contact gauges monitor gas extraction pipeline pressures, automatically triggering safety cutoff valves whenever system pressure breaches preset safe limits.
Refining complexes operating in Płock and coastal tanks around Gdańsk process volatile hydro-carbon fractions. Equipping pumps, reactors, and pressure vessels with 316L SS diaphragm-sealed electric contact gauges prevents process media solidification while preventing electrical spark hazards in hazardous classified areas.
As Poland accelerates its national Hydrogen Strategy across Pomerania, Wielkopolska, and Lower Silesia, high-pressure gas storage systems demand leak-free, high-precision contact monitoring. Laser-welded pressure transmitters and explosion-proof switches provide dual mechanical indication and redundant electronic signal transmission for electrolyzer skids.
Polish municipal district heating networks (Ciepłownictwo) in Warsaw, Kraków, and Wrocław are transitioning to gas-fired co-generation plants. Electric contact manometers provide reliable high/low pressure alarms on steam distribution mains, boiler feed pumps, and auxiliary gas supply loops.
Comprehensive engineering parameters for selecting the optimal pressure control device for hazardous environments.
| Parameter / Feature | Standard Electric Contact Gauge | Explosion-Proof (Ex d) Contact Gauge | Diaphragm-Sealed Ex Contact Gauge | Smart Intelligent Transmitter (3051) |
|---|---|---|---|---|
| Explosion Protection | Non-Ex (Safe Area) | Ex d II C T6 Gb | Ex d II C T4~T6 Gb | Ex ia / Ex d Approved |
| Dial Sizes (mm) | 100mm, 150mm | 100mm, 150mm (4", 6") | 100mm, 150mm | Digital LCD Display |
| Pressure Ranges | 0...0.1 to 0...100 MPa | -0.1...0 to 0...60 MPa | -100 kPa...0 to 0...2.5 MPa | -100 kPa to 40 MPa (Span Adj.) |
| Wetted Parts Material | Brass / 304 SS | 316L Stainless Steel | 316L SS, Hastelloy C, PTFE | 316L SS, Tantalum, Monel |
| Contact Types | Magnetic Snap / Reed Switch | Magnetic Snap (High Load) | Inductive / Magnetic Snap | 4-20mA + HART / Switch Output |
| Contact Power Rating | 30VA (AC 380V / DC 220V) | 30VA / 10VA (Safe Spark Control) | 30VA | 24V DC Loop Powered |
| Compliance / Standards | EN 837-1 | ATEX 2014/34/EU, PN-EN 60079 | ATEX, EN 837-3, CE Mark | CE, ATEX, SIL2 / SIL3 |
Combining factory-direct cost efficiency, rapid custom prototyping, and seamless logistical connectivity to European logistics hubs.
From raw Bourdon tube drawing and CNC housing machining to micro-contact assembly and automated laser welding. Our integrated 3,000 m² factory in Huzhou guarantees batch-to-batch consistency and total quality control.
Direct door-to-door delivery options via Chengdu-Małaszewicze China-Europe Railway Express (12-14 transit days to Poland) or ocean container shipping to the Hub Port of Gdańsk/Gdynia for cost-optimized bulk shipments.
Tailored dual-scale dial designs (bar / kPa / MPa in Polish/English font), specialized thread process connections (G1/2", M20x1.5, NPT1/2"), custom capillary extension lengths, and private branding labels for Polish EPC contractors.
Huzhou Accuracy Instrument CO LTD is professionally engaged in the development, sales and service of industrial mechanical pressure gauges, bi-metal thermometers, SF6 manometer, pressure sensor. Products are widely used in various applications such as Mechanical Engineering, Chemical Engineering, Food Industry, Pharmaceutical, and high technology electric appliances.
Established over two decades ago, our pressure gauge manufacturing facility spans 3,000 square meters, equipped with advanced production lines and rigorous quality control systems. As an industry leader, we integrate innovation with precision engineering to deliver reliable measurement solutions for global clients, including specialized solutions serving the Poland market.
R&D Department (20 specialists): Focuses on material innovation, smart sensor integration, and compliance with international standards (e.g., ISO, API, EN, ATEX).
Production Workforce (120 technicians): Utilizes automated assembly and laser calibration technologies to ensure product durability and accuracy.
Sales & Service Unit (15 professionals): Provides 24/7 technical support and customized solutions across 30+ countries.
Annual output exceeds 2 million units, covering industrial-grade gauges (e.g., stainless steel gauge, black steel gauge, shock-proof gauge, sf6 gauge, thermometer, pressure sensor) for oil/gas, HVAC, and pharmaceutical sectors.
Products exported worldwide, with certifications including ISO, SGS, and CE, earning recognition for high corrosion resistance and ±0.5% precision.
Our laboratory conducts 100% pressure cycle tests and environmental simulations, adhering strictly to ISO 9001 and ISO 17025 standards.
Continuous improvement drives our reputation for "zero-leak" performance in extreme operational conditions, supported by a comprehensive one-year factory warranty.
We have long followed the concept of "reasonable price, accurate delivery, good quality" and several business management models to keep our production quality above the required benchmark under ISO9001:2008 / ISO9001:2015 certification.
Explore our full line of ceramic pressure transmitters, SF6 gas density monitors, bimetal thermometers, and high-precision sensors.
Key technical insights for procurement officers, system integrators, and plant engineers in Poland.
Our explosion-proof electric contact pressure gauges are manufactured according to ATEX Directive 2014/34/EU and EN 60079 series standards. They feature heavy-duty Ex d flameproof enclosures designed to contain internal electrical sparks, preventing gas ignition in Zone 1 and Zone 2 hazardous areas across Polish industrial sites.
We provide multiple contact configurations: Single High Limit (NO), Single Low Limit (NC), Double High Limit (2NO), Double Low Limit (2NC), and High/Low Limit combination contacts (1NO+1NC). Contacts use magnetic snap-action mechanisms with silver-nickel or gold plating for superior arc resistance.
Yes, we offer fully customized dial printing. We regularly supply dual-scale dials in Bar/PSI or MPa/Bar according to Polish committee for standardization (PN-EN) norms, complete with custom company logos or tag numbers upon request.
For urgent engineering orders, rail freight via the New Silk Road (Chengdu to Małaszewicze terminal) takes approximately 12 to 14 days. Ocean shipping to Gdańsk or Gdynia seaports takes 28 to 35 days depending on the shipping line. Air express dispatch is available for emergency plant maintenance.
Contact Huzhou Accuracy Instrument today to receive detailed technical datasheets, CAD drawings, ATEX compliance certificates, and competitive direct-factory quotations tailored for your projects in Poland.
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