Precision-engineered replacement gauges, bimetallic thermometers, and sensor solutions manufactured to ISO 9001:2008 and CE global standards.
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CE Certification China Suppliers Factory Combined Pressure & Temperature Compound Gauge for Heating Systems
View Product DetailsIn industrial and commercial hydronic heating systems, maintaining precise real-time oversight of internal operating parameters is essential for both operational efficiency and structural integrity. A dual-parameter pressure temperature gauge—commonly designated in the HVAC/R industry as a Tridicator—serves as the primary defensive instrument for hot water supply systems, steam boilers, and commercial vessel infrastructure.
When original equipment manufacturer (OEM) instruments deteriorate due to thermal stress, pressure cycling, media corrosion, or mechanical vibration, engineering teams require precise-fit direct replacement units. Sourcing from specialized OEM replace pressure temperature gauge boiler factories guarantees that mechanical interfaces, capillary lengths, pressure range scales, and temperature sensing elements align flawlessly with original equipment specs, adhering to strict ASME Section IV and EN 837-1 safety codes.
Combines a C-type Bourdon tube for pressure sensing with a helical bimetallic coil or liquid-filled thermal bulb in a single compact enclosure, eliminating the need for dual tapping points on boiler vessels.
Available in standard NPT (National Pipe Thread), BSPT, or ISO metric threads with male or female configurations. Options include back-mount, bottom-mount, and extended capillary remote installations.
Designed with IP65 to IP67 rated stainless steel or heavy-duty brass housings, protecting internal gears and movement linkages from moisture ingress, fugitive steam, and ambient atmospheric oxidation.
Direct factory OEM replacement requires precise alignment of physical dimensions, accuracy classes, and wetted materials to prevent chemical incompatibility or premature instrument degradation.
| Parameter Specification | Standard Commercial OEM Grade | Heavy Industrial Heavy-Duty Grade | High-Corrosion / Special Process |
|---|---|---|---|
| Dial Diameters | 2.5" (63mm), 3.0" (80mm) | 4.0" (100mm), 4.5" (115mm) | 6.0" (150mm) Custom Dials |
| Pressure Ranges | 0–60 psi / 0–4 bar (Hydronic) | 0–160 psi / 0–11 bar (Commercial) | 0–600 psi / 0–40 bar (High-Pressure Steam) |
| Temperature Ranges | 30°F to 250°F / 0°C to 120°C | 30°F to 300°F / 0°C to 150°C | -40°F to 600°F / -40°C to 300°C |
| Accuracy Class | ±2.5% or ±1.6% Full Scale | ±1.0% Full Scale (ASME Grade A) | ±0.5% Full Scale (ASME Grade 2A) |
| Wetted Parts Material | C3604 High-Precision Brass | AISI 304 Stainless Steel | AISI 316L Stainless Steel / Monel |
| Window Lens | Instrument-Grade Acrylic / Polycarbonate | Laminated Safety Glass | Shatter-Proof Tempered Glass |
| Fill Liquid Options | Dry (Standard) | 99.5% Pure Glycerine Fill | High-Temp Silicone Oil Fill (-40°C~200°C) |
Navigating global boiler equipment supply chains requires scaling custom production while maintaining strict physical accuracy. Sourcing directly from specialized Chinese manufacturing hubs offers distinct technical and financial benefits.
Modern pressure gauge factories utilize automated laser welding for Bourdon tube stem joints and computer-vision dial printing systems. Every single pressure-temperature gauge undergoes 100% full-scale calibration at multiple pressure nodes, ensuring strict compliance with zero-point stability and hysteresis tolerances.
Through vertically integrated manufacturing—from raw brass rod extrusion to final dial face stamping and oil filling—China factories deliver OEM replacement units at competitive price points while using top-grade metals (SUS304/SUS316) and silicone dampening fluids.
Deploying replacement pressure and temperature gauges globally requires adherence to region-specific industrial boiler and pressure vessel regulations.
Designed to conform to ASME B40.100 specifications and National Board of Boiler and Pressure Vessel Inspectors standards. Dial faces feature dual-scale (PSI / kPa and °F / °C) markings requested by US & Canadian HVAC engineering contractors.
Fully compliant with EU Pressure Equipment Directive (PED 2014/68/EU) and EN 837-1 safety standards, featuring blow-out discs, safety glass, and restricted orifice port screws to mitigate pressure spikes.
Custom OEM artwork including logo integration, localized dial scales, private-label packaging, and customized stem insertion lengths tailored to specific boiler jacket insulation thicknesses.
Replacement boiler gauges must adapt to diverse thermal and fluid environments across multiple industrial sectors.
Used extensively in municipal heating systems, school boiler rooms, and apartment hydronic loops. The integrated tridicator monitors hot water expansion loop pressure and loop output temperatures simultaneously.
High-pressure steam applications require stainless steel Bourdon tube constructions paired with siphon coils (pigtails) or diaphragm seals to isolate sensitive internal elements from extreme thermal exposure.
Compact, back-connect replacement gauges designed for tight spaces on packaged OEM boiler skids, oil & gas auxiliary steam generators, and containerized mobile heat units.
The pressure measurement industry is moving toward hybrid mechanical-digital instrumentation and IoT-enabled monitoring solutions.
Modern industrial boilers increasingly demand dual local display and remote telemetry. Next-generation OEM gauges combine traditional mechanical dials with built-in ceramic pressure transmitters (AKS series) outputting 4-20mA or RS485 Modbus signals directly to Building Management Systems (BMS).
With tightening environmental regulations, manufacturers are moving from traditional mineral oil dampeners to food-grade non-toxic vegetable-based glycerine and biodegradable silicone fluids, ensuring safe deployment in food processing and pharmaceutical cleanroom boilers.
20 YEARS OF EXPERIENCE AND RESEARCH IN INDUSTRIAL MEASUREMENT
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.
Our laboratory conducts 100% pressure cycle tests and environmental simulations, adhering to ISO 9001 and ISO 17025 standards. Continuous improvement drives our reputation for "zero-leak" performance in extreme conditions, supported by a comprehensive one-year 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 certification.
Key technical considerations for procurement officers, OEM boiler engineers, and facility maintenance managers.
Explore factory-direct OEM replacement options engineered for precision pressure and temperature control.
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