Explore our CE-certified range engineered for low-temperature resilience, zero-leak operation, and high-accuracy automation feedback.
Comprehensive engineering insights into low-temperature pressure gauge design, material science compliance, and global safety standards.
Cryogenic conditions cause thermal contraction and embrittlement in standard metals. Low-temperature gauges utilize SS316L or Monel Bourdon tubes, engineered via vacuum heat treatment to maintain elasticity without hysteresis or mechanical failure down to liquid nitrogen levels (-196°C).
Standard glycerin fill freezes in low-temperature setups, locking the movement. Specialized low-viscosity silicone oil dampening or dry nitrogen gas purging, combined with hermetically sealed IP67 cases, prevents internal condensation, dial fogging, and pointer freezing.
CE Certification guarantees adherence to the EU Pressure Equipment Directive (PED 2014/68/EU) and EN 837-1 safety standards. Laser-welded socket-to-case joints ensure high rupture pressure margins, protecting personnel against sudden overpressure surges.
In cryogenic liquid storage (LOX, LIN, LAR, LNG), measuring pressure accurately is not merely an operational parameter—it is a critical safety threshold. Temperature differentials between media and ambient air create thermal stresses that compromise standard pressure gauges. Huzhou Accuracy Instrument manufactures CE-marked low-temperature gauges engineered with micro-welded bimetallic compensation loops and helium-leak-tested sensing elements, ensuring long-term drift-free accuracy (Class 1.0 / Class 1.6).
Understanding how material choice and international certification eliminate field failure rates in low-temperature pressure gauge deployment.
Our low-temperature pressure gauges strictly comply with EN 837-1 standards for Bourdon tube pressure gauges. Features include a safety blow-out disk, multi-layered safety glass window, and baffle wall construction to redirect energy safely away from the operator during catastrophic system pressure spikes.
Designed for hazardous operational zones in gas processing plants and LNG refueling stations. Spark-resistant internal movement components, anti-static acrylic windows, and intrinsic safety switch integrations allow compliant use in ATEX Zone 1 and Zone 2 environments.
Oxygen service applications demand zero oil contamination to avoid catastrophic combustion. Our oxygen-cleaned gauges undergo ultrasonic degreasing, carbon tetrachloride testing, and cleanroom vacuum packaging, certified compliant with ASTM G93 / ISO 15001.
Huzhou Accuracy Instrument Co., Ltd. operates a modernized 3,000 square meter manufacturing facility optimized for high-capacity, ultra-precise mechanical pressure gauges and sensor production. By leveraging end-to-end supply chain integration in China, we deliver superior low-temperature gauges at optimized total cost of ownership (TCO).
Engineered to maintain precision across demanding industrial operating environments worldwide.
Monitors tank head pressures, pipeline boost systems, and cryogenic vaporizers in Liquefied Natural Gas facilities (-162°C). High vibration dampening guards against pressure pulsation from high-volume booster pumps.
Installed on cryogenic micro-bulk tanks at healthcare facilities. Cleaned for oxygen service according to ISO 15001 standards, providing uninterrupted monitoring of vital bulk oxygen reserves.
Utilized in test benches for liquid hydrogen (LH2) and liquid oxygen (LOX) rocket engine fueling lines. Custom digital output configurations deliver continuous data logging for automated systems.
Servicing ultra-low temperature (ULT) freezers, industrial ammonia systems, and polar climate processing infrastructure where ambient temperatures dip below -40°C routinely.
Provides zero-outgassing, high-purity pressure reading for specialty liquefied gas lines (argon, nitrogen, carbon dioxide) used in microchip wafer fabrication plants.
Shock-proof, liquid-filled stainless steel cases withstand road vibration during liquid nitrogen and liquid argon road tanker transit, ensuring constant payload monitoring.
Bridging traditional mechanical reliability with digital connectivity for Industry 4.0 monitoring.
The industrial measurement sector is rapidly transitioning toward hybrid gauges. Combining local dial readouts with micro-fused silicon piezo-resistive transmitters allows operators immediate manual visual inspection while streaming live telemetry via RS485 Modbus or LoRaWAN to cloud monitoring stations.
Next-gen low-temperature pressure elements incorporate chemical vapor deposition (CVD) DLC coatings. This decreases mechanical friction on internal movement gears, increasing cycling lifespan from 1,000,000 pressure pulses to over 5,000,000 pulses under sub-zero thermal shock conditions.
20 Years of Specialized Research & Industrial Instrument Manufacturing
Huzhou Accuracy Instrument Co., Ltd. is professionally engaged in the development, sales, and service of industrial mechanical pressure gauges, bi-metal thermometers, SF6 manometers, and advanced pressure sensors. Products are widely used in 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.
20 Specialists: Focuses on material innovation, smart sensor integration, and compliance with international standards (e.g., ISO, API, EN, CE).
120 Technicians: Utilizes automated assembly, laser welding, and high-precision calibration technologies to ensure product durability and accuracy.
15 Professionals: Provides 24/7 technical support, OEM/ODM customized engineering, and local procurement logistics across 30+ countries.
Following our guiding concept of "Reasonable Price, Accurate Delivery, Good Quality", our production quality consistently exceeds ISO 9001:2008 benchmarks.
Detailed technical answers for procurement directors, project engineers, and instrument buyers.
Versatile instrumentation solutions backed by 20+ years of manufacturing expertise.
Accuracy Instrument
