Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories
Designed for extreme thermal desalination brine cycles, boiler condensate, and sulfur recovery units across Southern Iraq with zero zero-drift.
View Product DetailsPre-pressurized electrolyte designs, anti-poisoning solid polymer references, and low-impedance high-temperature glass formulations verified for operating temperatures up to 130°C.
Designed for extreme thermal desalination brine cycles, boiler condensate, and sulfur recovery units across Southern Iraq with zero zero-drift.
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Rugged IP68 waterproof PG13.5 thread with standard S8 plug connector for fast replacement during scheduled turnaround maintenance in Basra refineries.
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FDA-compliant and SIP/CIP steam-sterilizable electrode capable of surviving repeated 130°C sterilization cycles in medical liquid and biotech processing.
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Equipped with internal PT1000/PT100 RTD resistance for microsecond automatic temperature compensation across volatile Iraqi desert ambient swings.
View Product DetailsThe convergence of ambient hyperthermia, extreme hydrocarbon fouling, high-salinity Shatt al-Arab water intake, and aggressive chemical processing demands specialized sensor physics.
Industrial processing facilities throughout the Republic of Iraq—from the massive crude extraction fields of Rumaila, West Qurna, and Majnoon, to the refining hubs of Basra, Baiji, and Daura—operate under some of the most aggressive environmental and process conditions in the world. Ambient summer temperatures regularly breach 52°C, causing ambient surface instrumentation enclosures to experience internal temperatures in excess of 65°C.
When combined with high-temperature process media (crude oil desalting separators running at 110°C–130°C, boiler feedwater SWAS circuits at 100°C+, and thermal seawater desalination evaporators), traditional glass electrodes fail within days. The failure mechanisms are acute: accelerated leaching of alkali ions from the glass membrane, rapid boiling or expansion of standard liquid reference electrolytes, silver chloride precipitation in the presence of dissolved H2S, and irreversible junction clogging by heavy asphaltenes and mineral scale.
Combining world-class electrochemistry R&D with modern smart manufacturing capacity to deliver high-reliability analytical sensors without legacy Western brand markups.
BOQU established one of the premier high-temperature electrochemical sensor laboratories in Shanghai. Every sensor series is tested across thermal cycling chambers from 20°C to 135°C and pressurized to 1.6 MPa to simulate autoclave sterilization and severe chemical processing without glass shattering or drift.
Production is executed under stringent ISO 9001 and ISO 14001 quality and environmental frameworks. Products carry international CE conformity, SGS factory audit verification, and FDA certification for sanitary food and pharmaceutical lines. The pH5806 holds the prestigious Shanghai Brand certification.
Procuring analytical instruments from European or American suppliers often introduces 6-to-12-week lead times and prohibitive replacement costs. BOQU provides direct OEM/ODM supply with 35%–50% overall cost savings, rapid air courier delivery to Erbil and Baghdad, and readily available spare glass electrodes.
Sensors can be supplied with chemically inert 316L Stainless Steel, Titanium, or pure PTFE flow cells and retractable assemblies (wetted lengths 120mm to 450mm). This ensures zero mechanical damage when installed in crude desalter vessels or corrosive sulfur handling lines.
Eliminate noisy analog mV cables that pick up electromagnetic interference from large refinery compressors and pumps. BOQU digital high-temperature sensors feature on-board signal processing, transmitting clean Modbus RTU directly to distributed control systems (DCS) or PLC architectures.
Our dedicated export application engineers collaborate directly with Iraqi EPC contractors, public water authorities, and ministry procurement teams to review piping P&IDs, process chemical profiles, and pressure drops before finalizing instrument specifications.
A rigorous specification framework matching sensor metallurgy, reference junctions, and controllers to specific Iraqi industrial plants.
| Sector / Iraqi Location | Target Process Condition | Predominant Failure Vector | Recommended BOQU Sensor Architecture | Critical Engineering Benefit |
|---|---|---|---|---|
| Upstream Crude Oil Extraction (Basra Oil Co., Rumaila, Zubair) |
Produced water separation, crude desalter effluent at 95°C–125°C, high H2S, oil emulsion. | Heavy sulfide poisoning (Ag2S) of standard porous ceramic junctions; oil blinding glass bulb. | pH5806 with double Teflon annular junction, pressurized solid polymer electrolyte, flat-bulb self-cleaning glass. | Eliminates junction plugging; extends maintenance intervals from 3 days to over 45 days in crude emulsion. |
| Refining & Hydrotreating (South Refineries Co., Baiji, Daura) |
Sour water strippers, caustic neutralization wash at 80°C–130°C, pH 1 to 13 cycling. | Rapid dissolution of standard pH glass bulb matrix under hot alkaline conditions; reference drift. | High-temp alkali-resistant glass electrode with built-in PT1000 RTD and 316L/Hastelloy flow-through chamber. | Accurate caustic dosing preventing under-neutralization and severe overhead condenser corrosion. |
| Thermal Power Generation (Al-Khairat, Wasit, South Baghdad) |
Boiler feedwater, economizer inlet, SWAS sampling stations (condensate 45°C–100°C), low conductivity (<2 µS/cm). | Streaming potentials, liquid junction potential instability in ultra-pure water, slow response. | Flow-through high-purity water pH assembly with ground potential sleeve and electrolyte replenishment chamber. | Prevents false corrosion alarms; delivers sub-0.05 pH stability for boiler life extension. |
| Thermal Desalination (MSF/MED) (Basra Grand Water Project, Umm Qasr) |
Concentrated hot brine blowdown (65°C–90°C), high chloride content, continuous scale precipitation. | Extreme scaling (CaSO4, CaCO3) suffocating reference junction; thermal expansion cracking. | Rugged PG13.5 threaded S8 high-temperature pH/ORP sensor paired with automated compressed-air jet wash head. | Automated online scale wash down minimizes manual technician intervention in extreme outdoor summer heat. |
| Biopharma & Sterile Brewing (Baghdad, Sulaymaniyah, Erbil) |
Batch fermentation broth, steam-in-place (SIP) at 121°C–130°C for 30–45 minutes, organic nutrient acids. | Electrolyte boiling during steam cycle leading to bubble formation at reference junction and loss of calibration. | FDA-compliant certified bioprocess pH electrode with gelled polymer reference and pre-pressurized nitrogen reservoir. | Maintains calibration slope through 50+ consecutive steam sterilization autoclave cycles. |
The global process instrumentation landscape is shifting away from traditional high-impedance analog mV sensors. In remote Iraqi industrial installations—where sensor-to-transmitter distances can exceed 50 meters and conduit channels share space with high-voltage variable frequency drives (VFDs)—analog signal degradation is a critical operational issue.
BOQU's next-generation digital sensors incorporate microprocessors directly into the sensor head. The mV signal generated by the glass electrode is digitized at source, temperature-compensated in real-time, and transmitted via robust RS485 Modbus RTU protocol.
International EPC contractors executing projects under the Iraqi Ministry of Oil (MoO) and Ministry of Electricity (MoE) mandate compliance with strict verification standards:
In-depth responses covering process metallurgy, chemical compatibility, sensor lifespan, and direct factory procurement logistics.
Standard laboratory electrodes use liquid KCl which vaporizes and creates gas bubbles above 80°C. BOQU high-temperature sensors employ a cross-linked solid polymer gel pre-pressurized to 0.4–0.6 MPa (or up to 1.6 MPa in customized series). This elevates the boiling point of the solvent phase, maintains constant contact with the internal Ag/AgCl element, and prevents backflow of hot process fluid into the electrode.
In standard sensors, H2S reacts with silver ions from the reference to form insoluble silver sulfide (Ag2S), which clogs the porous diaphragm and ruins measurement. BOQU uses an extended diffusion path double-junction or triple-junction design with a silver-ion trap barrier. The outer junction is porous PTFE, which repels hydrocarbons and prevents H2S from reaching the inner reference chamber.
Yes. The sensor body uses PPS/Ryton or PVDF housings resistant to intense UV degradation, while cable entries feature double Viton O-ring seals rated to IP68. The electronics inside our digital heads are industrial-grade components rated from -20°C to +85°C ambient, preventing processor lockups under direct sunlight exposure.
We supply high-temperature sensors with industry-standard S8, VP (VarioPin), and K8S coaxial connectors, alongside direct hardwired potted cables. The S8 connector features gold-plated pins and a threaded coupling that locks securely into mating cables with an IP68 hermetic seal, preventing moisture ingress during hose-down cleaning or rainstorms.
Standard pH glass exchanges hydrogen ions with sodium ions above pH 10 at temperatures over 60°C, causing the sensor to read lower than actual pH. BOQU utilizes specialized high-temperature, low-sodium error glass formulated with heavy metal oxides (lithium/lanthanum glass formulations), ensuring linear response up to pH 14 at 100°C.
Standard high-temperature sensors and replacement electrodes are stocked in volume at our Shanghai logistics facility. Standard orders are dispatched within 3 to 5 business days via DHL, FedEx, or air freight directly to Baghdad International Airport (BGW), Erbil International Airport (EBL), or Basra International Airport (BSR), with door-to-door transit typically taking 6 to 9 days.
Yes. Our analog high-temperature pH and ORP sensors output standard mV potential according to the universal Nernst equation (approx. 59.16 mV/pH at 25°C). We offer customized cable pin-outs, internal PT100, PT1000, or NTC30K temperature sensors, and connection fittings compatible with Mettler Toledo, Endress+Hauser, Yokogawa, and Emerson Rosemount retractable holders.
Sensor life is an exponential function of temperature and chemical aggressiveness. While a standard sensor might fail in 48–72 hours at 110°C, BOQU high-temperature series typically deliver 6 to 14 months of continuous duty in hot hydrocarbon or boiler environments, provided routine CIP cleaning and buffer calibration are maintained.
Yes. In addition to primary sensors, we engineer and supply manual and pneumatic retractable insertion holders (allowing sensor extraction without shutting down pressurized process lines), sample conditioning units (cooling coils, pressure reduction valves), and integrated multi-channel analyzer cabinets engineered for power stations.
Our specialized export department prepares complete bilingual engineering submittal packages including Certificate of Origin (COO), Certificate of Conformity (COC), ISO 9001/14001 certificates, CE declarations, factory calibration test reports, dimensional CAD drawings, and warranty guarantees required by Iraqi ministry committees.
Explore the full selection of factory-direct high-temperature analytical sensors available for immediate procurement and shipment to Iraqi projects.
Rugged high-temp formulation engineered for severe thermal power boiler feed and chemical neutralization lines.
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Standard S8 connector configuration enabling rapid field turnaround in refinery pipelines and process vessels.
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Sterilizable sanitary glass electrode surviving repeated steam-in-place cycles without reference crystallization.
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Integrated temperature sensor delivering dynamic Nernst compensation across volatile process thermal gradients.
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Enhanced polymer electrolyte designed for continuous hydrocarbon immersion and produced water treatment plants.
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High-precision electrode with non-toxic electrolyte tailored for food, dairy, beverage, and medical reactors.
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Teflon porous junction resists scale and particulate sedimentation in thermal desalination evaporation vessels.
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Reinforced shaft and pressurized chamber certified for 1.6 MPa operating conditions in high-pressure steam headers.
View Product DetailsWhether you require single replacement probes for scheduled refinery turnarounds or hundreds of analytical loops for turn-key EPC energy projects across Iraq, our senior electrochemistry engineers are ready to support your technical specifications.