SINOU is a professional manufacturer focusing on filter press matching automatic monitoring instruments, provides customized Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System for global printing, chemical, electroplating and papermaking customers. Designed as pipeline direct-install tubular structure for filter press incoming slurry pipeline, it targets high-viscosity, corrosive dye sludge and chemical slurry features of printing wastewater.
All wetted parts adopt SUS316L stainless steel with optional Hastelloy anti-corrosion customization; real-time 4-20mA/RS485 signal output links filter press automatic control cabinet to adjust feeding flow and membrane squeezing pressure intelligently. We customize pipe diameter, measuring range and explosion-proof grade to build full automatic closed-loop dewatering system matched with Chemical Printing and Dyeing Membrane Filter Press.

1. Full stainless steel tubular integrated structure All pipe body and sensing components of Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System adopt SUS316L stainless steel, resist acid, alkali and salt corrosion of printing dye slurry, avoid rust damage under long-term corrosive medium.
2. Non-nuclear ultrasonic measuring technology No radioactive source, safe for workshop production; anti-bubble & anti-fiber interference design, adapt high-fiber printing sludge and fine chemical slurry, stable measuring even with pipeline entrained air.
3. Direct flange pipeline installation Inline tubular design connects directly on filter press feeding pipeline without bypass transformation, save civil and pipeline modification cost for existing filter press workshop.
4. Automatic linkage with filter press PLC Real-time concentration signal output links filter press control system; when slurry concentration exceeds set threshold, system automatically reduce feeding pump speed or extend membrane squeezing time to stabilize filter cake moisture.
5. Self-cleaning anti-adhesion inner pipe Polished inner tube surface prevents dye pigment and fine sludge adhesion, reduce regular manual cleaning frequency.
6. Multiple signal output & intelligent display Local LCD real-time concentration display + 4~20mA analog + optional RS485 Modbus communication, support remote cloud data collection and production record export.
| Parameter Item | Unit | Standard Model | Anti-corrosion Custom Model |
| Measuring Concentration Range | wt% | 0~60 | 0~70 |
| Measuring Precision | wt% | ±0.5 | ±0.3 |
| Repeatability | wt% | ±0.2 | ±0.15 |
| Applicable Medium Temperature | ℃ | 0~80 | -10~120 |
| Max Working Pipeline Pressure | MPa | ≤1.6 | ≤2.5 |
| Wetted Material | - | SUS316L | Hastelloy C22 / Titanium Alloy |
| Pipeline Connection Caliber | DN | DN50/DN80/DN100 customized | DN50~DN200 customizable |
| Protection Grade | - | IP65 | IP67 / Optional EX Explosion-proof |
| Power Supply | VDC | 24 | 24 |
| Output Signal | - | 4~20mA standard | 4~20mA+RS485 Modbus |
| Overall Equipment Weight | kg | 18~36 | 22~42 |
| Installation Mode | - | Flange inline pipeline mounting | Flange/clamp dual optional |
The concentration meter adopts advanced ultrasonic inline detection principle. When slurry flows through the tubular measuring body of Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System, ultrasonic waves transmit through liquid medium. The instrument calculates real-time solid content and slurry concentration by detecting sound velocity attenuation caused by suspended solid particles inside dye & chemical slurry.
Built-in high-precision sensing chip converts collected ultrasonic signals into digital concentration data. The device outputs standard 4-20mA or RS485 digital signals and transmits real-time concentration value to the matched PLC cabinet of Chemical Printing and Dyeing Membrane Filter Press.
According to preset upper and lower concentration thresholds, the filter press control system automatically adjusts feeding pump frequency and feeding flow: reduce feed rate when slurry is too thick to avoid filter plate leakage; increase feeding volume when slurry is too thin to improve production efficiency. Meanwhile, the system optimizes membrane squeezing time to stabilize final filter cake moisture.
Mirror polished inner tube reduces sludge adhesion and bubble attachment. Built-in algorithm automatically eliminates interference from micro air bubbles and short textile fiber contained in printing sludge to guarantee stable measuring accuracy.
On-site LCD screen displays instantaneous concentration data directly; optional cloud transmission module uploads historical concentration records, facilitating production data statistics and subsequent formula optimization for sludge dewatering.
(1)Clean pipeline internal debris, cotton fiber and solid lumps before installation to avoid blocking the measuring tube.
(2)Complete zero calibration with clean water after installation; set upper/lower concentration limit parameters matching local sludge for filter press linkage control.
(3)Install the meter on horizontal straight pipe section; avoid elbow, pump outlet and sudden pipe expansion position to reduce turbulent flow interference.
(1)Do not run empty pipe without medium; cut off power if pipeline is drained to prevent abnormal data drift.
(2)Keep stable feeding pressure, avoid sharp surge of flow rate which will affect detection accuracy.
(3)Check real-time display and PLC feedback signal every shift; stop for inspection if data fluctuates abnormally.
(1)Flush inner tube with clean water after daily shutdown to remove adhered pigment and viscous sludge.
(2)Take manual sampling lab comparison every 30 days, recalibrate instrument to ensure measuring precision.
(3)Check cable tightness and shell sealing monthly; replace aging sealing pieces timely for corrosive workshop.
(1)For strong acid & alkali dye sludge working condition, avoid direct pouring of concentrated chemicals onto equipment body.
(2)Outdoor installed units keep control box away from long-term rain soaking; explosion-proof version shall not open electrical housing in flammable gas environment.
If stop operation over 15 days, fully clean residual sludge inside tube, keep inner cavity dry and seal pipeline both ends.
Our technical engineers collect full field parameters from customers who equip Chemical Printing and Dyeing Membrane Filter Press, including pipeline nominal diameter, slurry pH value, fiber content, working temperature, pipeline pressure, actual concentration fluctuation range, PLC linkage requirement and workshop explosion-proof demand of Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System. Confirm wetted material (SUS316L/Hastelloy/Titanium), measuring range, signal output mode (4-20mA/RS485), finish customized technical scheme and formal quotation after data analysis.
R&D team adopts CFD fluid simulation software to optimize inner tube radian, ultrasonic sensor installation position and flow channel layout of Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System, eliminate measuring interference caused by slurry turbulence, fiber winding and air bubble. Complete formal production drawings, component BOM and linkage parameter sheet after internal technical audit.
Purchase certified stainless steel pipe blank, alloy material, ultrasonic sensing module, industrial transmitter and electronic accessories for the concentration meter. All submerged metal raw materials go through acid-base immersion anti-corrosion spot test; electronic components complete high-low temperature aging screening before storage, reject unqualified raw stock directly.
1.Adopt CNC laser cutting, seamless automatic welding and precision turning for tubular main body;
2.Standard SUS316L pipe inner wall carries out mirror polishing for anti-adhesion; Hastelloy/Titanium customized parts finish pickling passivation to enhance acid & alkali corrosion resistance adapting printing dye sludge environment;
3.Outer protection shell is processed by die-casting + anti-corrosion paint spraying.
Professional workers fix ultrasonic sensing probes inside tubular body following assembly specification; assemble transmitter, display module and wiring terminal. Pre-program concentration upper/lower limit, filter press linkage output parameter and anti-interference algorithm according to customer’s sludge feature in workshop, finish internal circuit debugging.
Every finished Concentration Meter undergoes 48h continuous simulation test with self-prepared high-fiber acid-alkali dye sludge liquid. Test measuring precision, anti-bubble & anti-fiber interference performance, signal output stability and linkage response with filter press PLC; adjust internal algorithm if test data exceeds tolerance range.
Re-inspect dimensional tolerance, protection grade (IP65/IP67/EX explosion-proof), sealing performance and whole machine working status; issue factory inspection report with test data before warehousing. 5% random sampling per batch for recheck to guarantee batch consistency.
Coat inner pipe and metal parts with anti-rust grease, wrap core components with waterproof plastic film; pack complete set equipment, spare seals, installation drawing and operation manual into export plywood case to avoid seawater damp and collision damage during long-distance sea transportation for overseas filter press projects.
Provide remote video installation guidance and parameter calibration service; for bulk order of full-set filter press + concentration meter project, arrange professional technicians to customer’s printing & dyeing workshop for on-site installation debugging of Stainless Steel Inline Tubular Slurry Concentration Meter For Filter Press Supporting Pipeline System, finish whole-line closed-loop linkage test with Chemical Printing and Dyeing Membrane Filter Press and train operators for daily calibration and maintenance. Implement 1-year full machine warranty and lifelong cost-price spare parts supply service.
| Comparison Item | Our Stainless Steel Inline Tubular Slurry Concentration Meter | Ordinary Market Competitor Concentration Meter | Core Client Benefit |
| Core Matching Orientation | Exclusive customized for Chemical Printing and Dyeing Membrane Filter Press; preset PLC linkage program matching our filter press control system, plug-and-play without extra programming | Universal general-purpose meter for all industries, no pre-set filter press linkage parameter; extra software modification cost required for automatic feeding control | Save on-site debugging & programming cost, realize closed-loop automatic feeding quickly |
| Wetted Material & Anti-corrosion Grade | Standard SUS316L, optional Hastelloy C22/Titanium for PH4~12 acid-alkali dye sludge; inner pipe mirror polishing anti-adhesion | Most adopt common 304 or carbon steel pipe, easy rust under printing corrosive wastewater; rough inner wall prone to pigment adhesion | Long service life in dye sludge, reduce regular cleaning frequency by over 60% |
| Measuring Technology & Anti-interference | Ultrasonic non-nuclear principle, built-in dedicated algorithm for textile fiber & entrained air; automatically offset bubble and staple fiber interference | Basic ultrasonic or nuclear ray type; nuclear version needs strict radioactive permission; common ultrasonic easily data drift from fiber/air bubble interference | Stable reading for printing high-fiber sludge, avoid frequent manual recalibration & environmental approval trouble |
| Measuring Precision & Range | Precision ±0.3~0.5wt%, measuring range 0~70wt% adapting concentrated chemical pigment sludge | Precision ≥±0.8wt%, max range only 0~50wt%, invalid for thick concentrated dye sludge | Stable control of filter cake moisture within 55%~70%, reduce filter cloth blocking rate |
| Installation Adaptability | Full inline flange connection, same caliber as filter press feeding pipeline; designed for old filter pipeline renovation without bypass modification | Need extra bypass pipeline transformation or probe insertion mounting, large construction cost for existing workshop | Lower site reconstruction expense, short installation cycle |
| Signal Output Function | Standard 4~20mA + optional RS485 Modbus, local LCD real-time display + optional cloud data upload | Only single 4~20mA output mostly, no digital communication & remote data checking | Realize unmanned intelligent production and historical production data export |
| Factory Test Standard | 48h continuous simulation test with printing dye sludge before delivery, verify anti-fiber & anti-corrosion performance | Only no-load clean water test without actual sludge simulation, unstable after onsite installation | Low after-sales failure rate, fewer field maintenance visits |
| Overall Cost Performance | Cost-effective with filter press one-stop package discount; professional after-sales targeting printing wastewater working condition | High price for imported brands; cheap domestic models with poor stability and frequent replacement | Cut overall dewatering operating cost for dyeing plant |
The concentration meter is mounted directly on filter press feeding pipeline, transmits real-time slurry concentration signal to filter press PLC cabinet. The filter press automatically adjusts feeding speed, feed duration and membrane squeezing pressure according to concentration data, stabilizes final filter cake moisture between 55%~70%, reduces overflow leakage and filter cloth clogging caused by inconsistent sludge density.
Linked with concentration meter via 4~20mA signal; when incoming sludge is over-concentrated, the pump reduces operating frequency to slow feeding; for too thin slurry, pump speeds up to raise feeding volume. Realize closed-loop automatic feeding and avoid manual frequent pump adjustment.
Concentration data guides automatic medicament addition: high-concentration sludge increases flocculant dosage automatically, low-concentration raw liquid cuts chemical feeding quantity, saves 18%~28% coagulant cost and avoids excessive chemical waste.
Installed in front of sludge storage tank to keep sludge fully homogenized and uniform concentration before entering feeding pipeline, drastically reduce sharp concentration fluctuation which affects concentration meter measuring precision and filter press running stability.
Collect concentration data, filter press running parameters, pump operating status synchronously; realize full-process unmanned automatic control of sludge conditioning, feeding and filter pressing, support historical data storage and remote cloud checking via RS485 communication.
Online pH Monitor: Monitor acid-base fluctuation of printing dye wastewater, match concentration data to adjust filter plate anti-corrosion configuration and medicament formula;
Pipeline Electromagnetic Flowmeter: Cooperate with concentration meter to calculate real-time dry sludge total weight for production statistics.
Stable feeding controlled by concentration improves filter cake forming consistency; uniform dry filter cake is more convenient for automatic conveying and outward disposal of sludge.
All Stainless Steel Inline Tubular Slurry Concentration Meter has obtained CE certification, complying with EU electrical safety and electromagnetic compatibility standards, eligible for free circulation within European market.
Products pass relevant ISO quality management system certification, whole production flow follows standardized quality control specifications.
Complete formal certification documents can be provided for customer customs declaration, project bidding and third-party inspection.
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No. 1, Xinhai Section, Provincial Road 01, Haiyan Economic Development Zone, Jiaxing City, Zhejiang Province, China
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