High-precision mechanical manometers, bi-metal thermometers, capillary remote systems, and CNG vehicle pressure gauges manufactured under strict ISO quality standards.
Unlocking Operational Reliability via Dual-Parameter Mechanical Engineering, Precision Laser Welding, and Custom OEM Calibration.
Industry Standard Insight: Dual-parameter Thermo-Manometers (Water Temperature and Pressure Gauges) consolidate two vital thermodynamic monitoring points into a single physical tapping point on boilers, HVAC loops, and industrial engine cooling jackets. This reduces process installation leak points by 50% while delivering real-time mechanical redundancy independent of external electrical power.
Combines C-type or helical Bourdon tube pressure sensing with liquid-filled or bimetallic spiral temperature sensing elements inside a unified IP65-sealed stainless steel or brass housing. Dual concentric dials permit simultaneous monitoring without signal lag.
Utilizes food-grade glycerin or high-viscosity silicone fluid filling to damp mechanical vibration, pulsation spikes, and rapid thermal cycling. Standard operational thermal limits range from -40°C to +200°C (-40°F to +392°F).
Optional integrated electric contact switches (NO/NC contacts), 4-20mA transmitters, or Hall-effect sensors convert mechanical displacement into digital control inputs for automated SCADA safety trip loops.
| Technical Parameter | Standard Commercial Grade | Heavy Industrial / OEM Grade | Severe Duty / Extreme Process |
|---|---|---|---|
| Pressure Accuracy Class | ±2.5% of Full Scale (EN 837-1) | ±1.6% of Full Scale (ASME B40.100) | ±1.0% or ±0.5% High Precision |
| Temperature Range & Accuracy | 0°C to +120°C (±2.0°C) | -40°C to +200°C (±1.5% FS) | -50°C to +600°C (Capillary Remote) |
| Wetted Materials | H59/H62 Copper Alloy / Brass | AISI 304 / 316 Stainless Steel | Hastelloy C-276 / Monel 400 / PTFE Seal |
| Case Construction & Ingress | Steel Black Painted (IP43) | SS304 Crimped Ring (IP65) | SS316 Bayonet Ring / Hermetic (IP67) |
| Vibration Damping Filling | Dry / Non-filled | 99.5% Pure Glycerin Filled | High-Temp Silicone Oil (-50°C ~ +250°C) |
| Connection Tappings | 1/4" NPT / G1/4" Bottom | 1/2" NPT / G1/2" / M20x1.5 | Tri-Clamp Sanitary / Laser Flange Seal |
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 pressure sensors. Products are widely used across global mechanical engineering, chemical processing, food industry, pharmaceuticals, and high-technology electric appliances.
Established over two decades ago, our specialized pressure and temperature gauge manufacturing facility spans 3,000 square meters, equipped with advanced automated assembly lines, laser welding cells, and rigorous quality control calibration systems.
Focuses on material innovation, smart sensor integration, dual-dial mechanical micro-linkages, and compliance with international standard specs (e.g., ISO, API, ASME).
Utilizes automated assembly line workholding, precision laser welding cell units, and digital calibration technologies to ensure extreme product durability and long-term repeatability.
Provides 24/7 technical engineering support, customized OEM dial artwork design, logistics tracking, and localized compliance consultation across 30+ countries.
Engineered to withstand extreme environmental stress, mechanical vibration, chemical corrosion, and stringent regulatory demands.
Combines supply water pressure (0-6 Bar / 0-100 PSI) and boiler outlet temperature (0-120°C) into a single dual-scale thermo-manometer. Prevents dry heating risks and system over-pressurization in closed hydraulic heating loops.
High-pressure natural gas gauges operating at 200-300 Bar (3000-4500 PSI) with integrated 5V or 12V micro-voltage output. Transmits exact fuel tank pressure levels directly to the vehicle dashboard ECU.
Laser-welded diaphragm seal pressure gauges featuring Hastelloy or PTFE lining. Protects sensitive internal Bourdon elements against crystallization, heavy viscous media, and harsh chemical attack.
Clean-in-Place (CIP) and Sterilize-in-Place (SIP) compatible sanitary pressure gauges with polished SS316L surfaces (Ra < 0.4 μm) for strict hygienic compliance.
Glycerin-filled vibration-resistant pressure gauges engineered to withstand intense pressure surges, mechanical hammer effects, and harsh outdoor ambient conditions.
High-precision SF6 gas density manometers with temperature compensation mechanisms, designed to prevent catastrophic flashovers in high-voltage electrical substations.
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.
Detailed technical solutions for industrial buyers, mechanical engineers, and global procurement officers.
Explore our CE-certified diaphragm seal gauges, adjustable bi-metal thermometers, and electric contact control manometers.
Accuracy Instrument