Silica / SWAS
Online Silicate & SWAS Analytical Station
Sub-ppb photometric trace silica analyzer designed for high-pressure power boilers and supercritical steam circuits.
Explore Product Spec
Direct Factory Supply
Precision Water & Silica Analytical Systems
Certified inline analytical instrumentation engineered for micro-ppb precision and extended field endurance.
High-Temp pH
China High Temp (0-130℃) pH Sensor
Integral PT100/PT1000 temperature compensation sensor built for harsh pharmaceutical reaction tanks and hot media.
View Details & Quote
OEM Wholesale
Wholesale High-Temp (0-130℃) pH Sensor
Rugged pressurized electrolyte gel electrode capable of withstanding cyclic thermal shocks and steam purge procedures.
View Details & Quote
Biopharma Line
Pharma Fermentation pH Sensor
Specialized polymer diaphragm reference system certified for SIP/CIP cycles in biological pure-line processing.
View Details & Quote
PG13.5 / S8
High-Temp S8 Connector pH Sensor
Industry-standard threaded modular interface ensuring noise-immune micro-voltage transmission in harsh plant setups.
View Details & Quote
Flagship Sensor
pH5806 High Temperature pH Sensor
Awarded "Shanghai Brand" recognition. Engineered to endure continuous thermal cycles in steam-sterilized fermentation vessels.
View Details & Quote
IoT Digital 485
IOT-485 Digital Analytical Probe
Direct Modbus-RTU multi-drop connectivity bypassing transmitters to interface directly with industrial PLCs and edge servers.
View Details & Quote
Multi-Channel
MPG-6099Plus Multi-Channel Station
Integrated digital panel analyzer monitoring conductivity, pH, dissolved oxygen, and turbidity on an ultra-responsive interface.
View Details & Quote
Technical Whitepaper
Evolution of Silica Analysis in Modern Process Metallurgy & Energy
From reactive colorimetry to automated digital micro-fluidics: understanding the mission-critical role of trace silicate detection.
The Turbine Glass Transition Threat
In high-pressure supercritical and ultra-supercritical boilers (>16 MPa), silicate dissolves directly into dry steam. As steam expands across turbine blading, pressure and temperature drop, causing silica to precipitate into an insoluble glass layer (SiO₂ vitrification). This degradation drops thermal efficiency by up to 4.5% and causes dangerous mechanical imbalances.
Sub-ppb Detection Methodologies
Conventional lab titrations fail modern process requirements due to atmospheric contamination and latency. Advanced inline analyzers utilize temperature-regulated heteropoly molybdenum blue photocolorimetry at 810–820 nm, delivering reliable quantification down to 0.1 μg/L (ppb) with automated zero-drift compensation and blank digestion.
IoT & Autonomous Calibration
Modern plants are phasing out reactive manual reagent mixing. BOQU's intelligent platforms leverage autonomous peristaltic dosing calibration, optical reference feedback, and digital RS485/Modbus-RTU integration, feeding continuous health diagnostics straight to enterprise distributed control systems (DCS).
Global Procurement Architecture
What Global EPCs & Plant Operators Require from Silica Analyzers
Rigorous specifications demanded by international water-chemistry guidelines, including EPRI, ASME, and VGB-S-010.
| Procurement Parameter | Legacy Benchmark | BOQU Factory 4.0 Specification | Strategic Operating Benefit |
|---|---|---|---|
| Lower Limit of Detection (LLD) | 1.0 – 5.0 μg/L (ppb) | 0.1 μg/L (0.1 ppb) | Prevents silent demineralizer breakthrough into critical boiler feed circuits. |
| Photometric Stability | Single-beam, baseline drift ±5% | Dual-beam optics with automated zero digestion | Eliminates frequent field calibrations; limits maintenance downtime. |
| Thermal Range Capability | 5°C – 40°C sample limitation | Integrated sample conditioning up to 130°C | Supports high-temperature bypass sampling in SWAS stations. |
| Reagent Consumption Rate | 1.5 – 2.5 Liters / month | Micro-metered flow (~0.8 L / month) | Reduces consumable chemical handling and operating OPEX by 45%. |
| Data Telemetry Standards | Isolated 4-20mA analog only | 4-20mA + RS485 Modbus + Cloud IoT Ready | Direct plug-and-play linkage with SCADA, DCS, and edge predictive engines. |
Advanced Manufacturing
China Factory 4.0: Resilient Supply Chains & Scale Superiority
Full vertical integration in Shanghai ensures price-to-performance excellence and rapid lead times across global markets.
Proprietary Sensor Glass Blowing
Rather than assembling outsourced subcomponents, BOQU formulates and blows specialized glass formulations in-house. Our high-temperature glass formulations withstand cyclic thermal expansions up to 130°C and harsh chemical exposure, reducing production defects and unit costs.
48-Hour Full-Burn Aging Cycles
Every silica analyzer and high-temperature sensor undergoes rigorous automated quality assurance, including multi-temperature thermal cycling and a mandatory 48-hour continuous burn-in verification, ensuring out-of-the-box reliability at the project site.
Tier-1 Shanghai Logistics Hub
Situated in Kangqiao and Lingang, Shanghai, BOQU is embedded within China's top microelectronics and high-purity chemical corridor. Rapid raw-material access allows us to fulfill custom OEM/ODM analyzer runs in weeks rather than months.
2007
Established in Shanghai
4,632 m²
Modern Production Base
100,000+
Instruments Per Year
100+
Global Export Markets
Real-World Applications
Mission-Critical Field Scenarios for Trace Silica & High-Temp Instrumentation
Deployed across international power plants, microelectronics fabrication plants, and biotechnology facilities.
Thermal & Nuclear SWAS Stations
Online trace silica analyzers monitor demineralizer bed runout and deaerator effluent. Providing real-time alerts before reactive silica breaks through boiler feed lines prevents costly unforced outages and tube failures.
Semiconductor UPW (Ultra-Pure Water)
Modern sub-5nm wafer manufacturing demands silica concentrations maintained well below 0.5 ppb. BOQU’s photometric chambers safeguard polishing mixed beds against early ionic breakthrough during continuous rinsing.
Sterile Biopharma Fermentation
Pairing silica water monitoring in clean steam generators with pH5806 sensors in bioreactors ensures pure steam operation while maintaining tight, drift-free pH control during repeated 130°C SIP sterilizations.
Knowledge Center & Engineering Inquiries
Frequently Asked Questions on Industrial Silica Analysis
Clear, direct guidance from our chemical instrumentation design engineers.
What is the difference between Reactive Silica and Colloidal (Non-Reactive) Silica?
Reactive silica consists of dissolved monomeric silicic acid (SiO₂ or H₄SiO₄) that freely binds with molybdate reagents to form the heteropoly yellow or molybdenum blue complex measured by colorimetric analyzers. Colloidal silica refers to polymerized or particulate silica species that do not readily react with color reagents. Complete boiler and UPW monitoring often requires periodic digestion or heated acid fluorination to convert colloidal species into reactive forms for comprehensive monitoring.
How frequently do online silica analyzers require routine calibration and reagent replenishment?
With BOQU's micro-metering peristaltic dispensing system, reagents typically last 30 to 45 days under continuous 15-minute measurement cycles. The analyzer can be scheduled to run autonomous two-point zero/slope calibrations weekly using onboard certified standard solutions, significantly reducing hands-on technician maintenance.
Can BOQU silica and water quality analyzers connect to foreign DCS systems (Honeywell, Yokogawa, Siemens)?
Yes. All BOQU online controllers support standard industrial communication interfaces, including dual isolated 4-20mA outputs with HART protocol options and bidirectional RS485 Modbus-RTU. They integrate seamlessly into major global Distributed Control Systems and edge SCADA networks.
What sample conditioning is required before process fluid enters the silica analyzer?
For steam or high-temperature boiler water samples, a Steam and Water Analysis System (SWAS) conditioning module must be installed upstream. This reduces sample pressure to between 0.1 and 0.3 MPa and cools the temperature to 20°C–35°C, ensuring optimal colorimetric reaction kinetics and protecting optical measurement cells.
Does BOQU support private label OEM and ODM customization for international instrumentation brands?
Yes. We provide comprehensive OEM/ODM solutions for system integrators and global distributors. This includes customized metal or IP65 ABS enclosures, private label front fascia, bespoke user interface firmware, custom cable lengths, and tailored measuring ranges backed by our full R&D team.
Complete System Catalog
Industrial Water Quality Sensors & Online Analyzers
Field-proven process control instrumentation delivered directly from our Shanghai manufacturing facility.
Turbidity & TSS
ZDYG-2088-01QX Online Turbidity Sensor
Infrared scattered light probe with automated wiper cleaning, engineered for clarifier effluent and raw water inlets.
View Specifications
Dissolved Oxygen
DOG-208FA High Temperature DO Sensor
Polarographic dissolved oxygen electrode built to withstand steam sterilization and provide precise aeration control.
View Specifications
Dual Channel
DCA130 Dual Channel pH & EC Analyzer
Simultaneous monitoring of pH and electrical conductivity on a single controller for RO skids and cooling water loops.
View Specifications
Transmitter
pHG-2081Pro Industrial pH/ORP Analyzer
High-precision industrial transmitter with programmable alarm relays and dual 4-20mA outputs for dosing control.
View Specifications
CIP Concentration
SJG-2083CS Acid/Alkali Concentration Meter
Inductive conductivity technology designed to measure chemical reagent concentration in acid pickling and CIP loops.
View Specifications
Disinfection
Online Residual Free Chlorine Analyzer
Constant-voltage amperometric measurement delivering continuous chlorine tracking without consumable chemical reagents.
View Specifications
Organics Tracking
TOC-3042 Total Organic Carbon Analyzer
UV catalytic oxidation with differential conductivity detection for pharmaceutical purified water and semiconductor rinse loops.
View Specifications
Compliance Station
Online COD, TP, TN & Heavy Metal Station
Automated wet-chemistry digestion cabinet for regulatory wastewater outfall compliance and industrial discharge monitoring.
View SpecificationsReady to Engineer Your Plant's Silica & Analytical Setup?
Connect directly with BOQU senior application engineers in Shanghai for custom manifold sizing, reagent schedules, and OEM production inquiries.