Next-Generation Mechanical Instrumentation, Smart Sensors, & Precision OEM Manufacturing Engineering Solutions for Global Critical Applications
Explore our industrial-grade pressure gauges, bi-metal thermometers, and high-precision transmitters
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. Our high-precision measurement solutions are widely utilized in heavy-duty applications such as Mechanical Engineering, Chemical Engineering, Food Industry Processing, Pharmaceutical Manufacturing, and High-Technology Electric Appliances.
Established over two decades ago, our modern pressure gauge manufacturing facility spans 3,000 square meters, equipped with automated production lines, laser calibration rigs, and rigorous Quality Assurance (QA) testing protocols. As a recognized industry leader in East China, we combine metallurgical innovation with mechanical engineering precision to supply resilient pressure and thermal sensing hardware to global clients across 30+ nations.
Comprehensive workforce expertise, specialized product lines, and robust quality commitment
Our annual production output exceeds 2 million units, encompassing a vast range of industrial instruments:
Exported across 30+ countries with global compliance approvals including ISO, SGS, and CE certification.
Our state-of-the-art testing laboratory conducts 100% pressure dynamic fatigue cycling and thermal chamber environmental simulations.
Bridging traditional mechanical metrology with IIoT smart sensor ecosystems
As process industries pivot toward Industry 4.0, traditional mechanical pressure gauges and bi-metal thermometers are evolving from isolated optical indicators into digital telemetry nodes. Huzhou Accuracy Instrument Co., Ltd. is pioneering hybrid dual-mode sensing architecture:
Future chemical processing and hydrogen power facilities demand unprecedented pressure containment and chemical inertness under extreme thermal cycling:
Engineered to meet exact mechanical specifications across critical industrial sectors
Overcomes severe pulsation and corrosive media using liquid-filled (Glycerine/Silicone) all-stainless steel Bourdon gauges equipped with Hastelloy C-276 diaphragm seals. Compliant with NACE MR0175 sour gas standards.
Sanitary tri-clamp diaphragm seal pressure gauges featuring ultra-clean polished wet parts (Ra < 0.4 µm) and food-grade fill fluids (NEOBEE M-20 / Vegetable Glycerine) to ensure zero batch contamination.
Dual-scale compound pressure and temperature gauges designed for instant thermal and hydronic readings. Provides HVAC technicians with single-point monitoring on chillers, boilers, and heat exchangers.
Hermetically sealed SF6 gas density gauges with temperature compensation mechanisms. Ensures reliable insulation verification in high-voltage circuit breakers under severe ambient temperature shifts.
Combining cost efficiency, raw material vertical integration, and advanced automation
Our factory in Huzhou employs full-robotic laser welding machines for diaphragm seal housing joining and pointer balancing. Automated pressure bench stations calibrate dial scale markers against digital master standards, ensuring ±0.5% and ±1.0% full-scale accuracy class compliance without human error.
Situated in the Yangtze River Delta industrial hub, Huzhou Accuracy Instrument benefits from seamless local access to certified 304, 316L, and phosphor bronze tube suppliers. This vertical ecosystem guarantees predictable lead times, reduced raw material buffer costs, and agile batch customizability.
We support global original equipment manufacturers (OEMs) with customized dial branding, dual/triple measurement scales (PSI, Bar, kPa, °C, °F), specific thread connections (NPT, BSP, Metric), and customized capillary tube lengths to fit space-constrained machinery layouts.
Mitigating supply chain risks while minimizing Total Cost of Ownership
For global EPC contractors and industrial distributors, instrument failure leads to unscheduled plant downtime, fluid leaks, and safety hazards. By utilizing seam-welded Bourdon tubes, fatigue-resistant movement gears, and leak-tested window seals, Huzhou Accuracy Instrument reduces instrument field replacement rates by up to 65%, directly lowering operational maintenance TCO.
Every production batch undergoes Statistical Process Control (SPC) inspection protocols. From incoming raw material spectrographic testing to final over-pressure exposure (130% of scale maximum), our QA framework guarantees that every unit leaving our factory is backed by fully traceable mill test certificates and calibration logs.
Adhering to international quality management benchmarks under ISO 9001:2008 and CE directives
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 certified systems.
Frequently asked technical questions regarding pressure and temperature measurement applications
Explore our additional laser-welded, diaphragm seal, and specialized industrial gauges
Accuracy Instrument
