Beranda » Instrumen Pengukuran Level » Pengukur Level Magnetik
Your trusted sourcing partner for magnetic level gauges in china—quality instruments at competitive prices.
Are you overwhelmed by too many conflicting quotes?
Are you worried about factory capabilities because tight project deadlines and heavy procurement tasks leave you no time to audit suppliers?
Are you wasting time researching because every factory claims their product is the best, thereby delaying your procurement schedule?
Instrava is here to help you solve your procurement challenges in China.
We serves a global clientele, including Kontraktor EPC, produsen peralatan OEM, manajer pengadaan, distributor, pedagang, dan konsultan teknik. Kami menyediakan penawaran harga produk yang telah diseleksi dari 3 pabrik yang telah melalui proses seleksi awal
Proses Kualifikasi Pemasok yang TerstandarisasiSetiap mitra manufaktur dievaluasi melalui proses kualifikasi pemasok terstandarisasi kami sebelum dimasukkan ke dalam jaringan pemasok Instrava. Penilaian tersebut berfokus pada kemampuan manufaktur, keahlian teknik, pengendalian mutu, keandalan pengiriman, dan dukungan layanan jangka panjang., sehingga klien kami dapat menghemat waktu secara signifikan dalam proses pencarian, penyaringan, dan perbandingan pemasok.
Apakah Anda membangun lini produksi industri baru, memperbarui dan mengganti instrumen lama, mencari pemasok untuk perdagangan grosir, atau membutuhkan produksi OEM khusus, kami membantu Anda menemukan produk yang paling sesuai dengan kebutuhan Anda.
Let’s collaborate for mutual success. With our customer-centric service, Instrava is your trusted procurement partner in China.
When purchasing magnetic level indicators, price should not be the primary consideration. Instead, priority must be given to technical factors: medium characteristics (density, corrosivity, viscosity, etc.), operating pressure, temperature, mounting configuration, and explosion-proof certifications. Focus on critical application pain points to ensure precise and rigorous procurement.
Catatan: Spesifikasi dapat bervariasi tergantung pada konfigurasi pabrikan dan persyaratan penyesuaian. Silakan hubungi kami untuk konfirmasi teknis yang terperinci.
Magnetic Level Indicator (MLI) Selection & Customization Guide
| Parameter Category | Standard / Regular Specs | Customizable / Optional Choices | Pertimbangan Pemilihan |
| Mounting Type | Side-Side Mounted | • Top-Mounted • Side-Top / Side-Bottom Mounted • Bottom-Mounted / Inverted | Vessel geometry (underground tanks require top-mounted), spatial headroom, nozzle orientation. |
| Measuring Range (C-C) | 300 mm to 3000 mm | • Custom Lengths: Up to 6000 mm (Sectional design available for transportation/installation) | Actual working level span, transport limits, and vertical installation clearance. |
| Bahan yang Dibasahi | 304 / 316L Stainless Steel | • Corrosion-Resistant: PTFE / PFA / PP / PVC Lined • Exotic Alloys: Titanium, Hastelloy C-276, 321 SS | Medium corrosivity, pH levels, and purity requirements (Titanium for severe corrosion or low-density high-pressure applications). |
| Kepadatan Sedang | $\ge 0.8\text{ g/cm}^3$ | • Low Density: Down to $0.45\text{ g/cm}^3$ (LPG/LNG/Light Hydrocarbons) • Interface Level: Dual-density floats ($\Delta\rho \ge 0.1\text{ g/cm}^3$) | True operating density. Low-density fluids or oil-water interface applications require custom float displacement engineering. |
| Tekanan Operasional | PN16 / PN25 / PN40 (1.6 ~ 4.0 MPa) | • High-Pressure Class: PN64, PN100, PN160 up to PN320 (Class 150# to 2500#) | Thicker float walls needed for high pressure increase weight, requiring precise fluid density validation. |
| Operating Temp. | -20°C to 100°C | • High-Temp: 100°C to 450°C (High-temp AlNiCo/SmCo magnets & ceramic flags) • Cryogenic: -160°C to -20°C (Vacuum insulation jacket) | Avoids demagnetization at high temps and frost buildup on indication scales at cryogenic temps. |
| Koneksi Proses | DN20 / DN25 Flange (HG/T 20592) | • Standar: ASME/ANSI B16.5, DIN, JIS, GB/T • Sizes & Ratings: DN15–DN100 / Class 150#–2500# • Connection Types: NPT Threads, Tri-Clamp, Socket Weld | Mating nozzle specs on client vessels. OEM skid builders often prefer threaded or sanitary tri-clamp connections. |
| Indication Display | Red/White or Green/White Aluminum Flags (IP65) | • Alternative Materials: Plastic flags (corrosive environments), Ceramic flags (high temp) • Illumination: Night-glow / LED Backlit flags • Custom Scale: Percentage (0-100%), Metric (mm), Volume (L/m³) | Plastic flags for harsh chemical fumes; ceramic for extreme heat; backlighting for low-light/night operation; volume scale for direct metering. |
| Remote Transmitter | None (Visual Only) | • 4-20mA + HART Protocol • Modbus RS485 • Reed Switch Chain / Magnetostrictive Sensing | Required when integrating liquid level data into DCS, PLC, or SCADA automation systems. |
| Alarm Switches | Tidak ada | • Bistable Magnetic Switches (High, Low, High-High, Low-Low) • Custom quantity (1 to 4 units) | Ideal for interlock alarms, pump start/stop control, and emergency safety shutdowns. |
| Explosion Proof & IP | Intrinsic Safety (Ex ia IIC T6 Ga) | • Flameproof / Explosion-Proof: Ex d IIC T6 Gb • Perlindungan Masuknya Air: IP66 / IP67 / IP68 (Submersible) | Mandatory for hazardous zones (oil & gas, chemical processing plants). |
| Thermal Tracing | Tidak ada | • Steam / Hot Water Jacket • Electric Heat Tracing (EHT) (Self-regulating/Constant wattage) • Vacuum Insulation Jacket | Prevents media crystallization, freezing, or high viscosity buildup (e.g., heavy oil, benzene, liquid ammonia, winter protection). |
| Drain & Vent Ports | Bottom Drain Valve + Top Vent Plug | • Valve Upgrades: Ball Valve, Needle Valve, Gate Valve, Flanged Drain Valve • Flushed Ring / Cleaning Ports | Simplifies maintenance and cleaning depending on media sediment levels; hazardous fluids require flanged drain valves. |
Looking to buy 1pcs magnetic level indicator to replace an existing unit in your plant? Contact us now.
Need a custom batch of 500 units for your OEM machinery production? Contact us now.
Our fully vetted manufacturing partners bring 10 to 30+ years of R&D and production expertise, equipped to solve even the most complex working conditions.
With global compliance and top-tier certifications—including ATEX, IECEx, EAC, CSA, PED, ASME, SIL, LR, and CCS—our products are ready for deployment anywhere in the world.
Product quality is our cornerstone; delivering exceptional service is our mission.
Main Components:
Main chamber
Main chamber
Standard operating conditions: 304/316L seamless stainless steel pipe; welded pipe is strictly prohibited to prevent weld seams from protruding and obstructing the float. For high-temperature and high-pressure applications, materials such as 321 stainless steel, Hastelloy, or titanium are used.
Highly corrosive media: The chamber interior is lined with PTFE, ensuring a dense lining free of blisters or delamination; for low-pressure applications involving highly corrosive media, PP or CPVC plastic chambers are available options.
, magnetic float
Pelampung Magnetik
Regarding the common material options for magnetic flap level gauges, 304 stainless steel, titanium alloy, and PP (polypropylene) are frequently used for the float. 304 stainless steel offers good corrosion resistance and mechanical strength, making it suitable for a wide range of media; titanium alloy provides superior corrosion resistance and is lightweight, making it particularly ideal for highly corrosive media; and PP is a lightweight, corrosion-resistant plastic suitable for applications requiring non-metallic materials. Conversely, ordinary carbon steel is rarely used as a float material in magnetic flap level gauges due to its poor corrosion resistance.
, magnetic flip indicators (flags)
Magnetic Flip Indicators
When selecting the model, comprehensive consideration should be given to the instrument’s operating environment (indoor/outdoor) and the medium temperature. For indoor applications at ambient temperature, ABS plastic flaps offer the best cost-performance ratio; for outdoor use or high-temperature environments exceeding 120°C, aluminum alloy flaps are recommended; in cases of high temperatures, ceramic flaps should be selected to ensure the instrument’s long-term, stable operation.
, flanged or threaded process connections
Flanged or Threaded Process Connections
Flange connections are a common method suitable for liquid level measurement in medium-to-high-pressure, large-diameter vessels—such as petrochemical storage tanks and high-pressure reactors—offering rigid attachment, excellent sealing, and high pressure resistance; they accommodate various pressure ratings and ensure stable, reliable installation. Threaded connections are suitable for liquid level measurement in small-diameter, low-pressure vessels or pipelines—such as small storage tanks and laboratory equipment—offering ease of installation and a compact footprint, though they have lower pressure-bearing capacity and are limited to low-pressure applications.
, top vent valve, and bottom drain valve.
Fitur Utama:
Complete physical isolation, zero leakage safety, passive operation (no power required), and extreme condition durability.
| Classification Category | Core Type | Key Technical Features & Structure | Aplikasi Khas |
| By Mounting Structure | Side-Side Mounted | Communicating vessel principle. Connected via side flanges at top and bottom. Simple structure and easiest maintenance. | Vertical/horizontal aboveground storage tanks, reactors, and pressure vessels. |
| Top-Mounted | Chamber tube inserted vertically from the tank top. Internal float drives upper magnet via a connecting rod for top indication. | Underground tanks, buried oil storage, vessels with top-only nozzle accessibility. | |
| Side-Top / Side-Bottom | Main chamber mounted on the side, extended via elbows to the top or bottom nozzle to fit space constraints. | Space-restricted equipment, compact OEM skid packages. | |
| By Operating Pressure | Atmospheric / Low Pressure | Design pressure $\le 2.5\text{ MPa}$ (Class 150#). Thin-wall chamber tubing (2.0–3.0 mm). | Water storage tanks, diesel tanks, atmospheric vessels. |
| Medium-High Pressure | Design pressure $4.0 \sim 10.0\text{ MPa}$ (Class 300#–600#). Heavy-wall tubing with forged high-pressure flanges. | Chemical process reactors, medium-pressure vessels. | |
| Ultra-High Pressure | Design pressure $\ge 16.0\text{ MPa}$ (up to 32.0 MPa / Class 2500#). Reinforced pressure-resistant floats. | High-pressure separators, hydrocracking reactors, boiler drums. | |
| By Operating Temperature | Cryogenic / Low-Temp | Dilengkapi dengan vacuum insulation jackets or anti-frost acrylic windows to prevent frost buildup obscuring vision. | LNG, liquid ammonia, liquid oxygen/nitrogen down to -160°C. |
| Suhu Sekitar | Working temp -20°C to 100°C. Standard magnetic floats with aluminum indicator flags. | Industrial water, light oils, non-viscous liquids. | |
| High / Extreme Temp | Penggunaan high Curie-point magnets (AlNiCo / SmCo) with ceramic flags to prevent high-temperature demagnetization. | Thermal oil heaters, power plant boiler drums, distillation columns (up to 450°C). | |
| By Corrosion Resistance | Standard Metallic | Wetted parts in 304 / 316L / 321 stainless steel. Resistant to mild corrosion and general solvents. | Water, clean fuels, non-corrosive chemical media. |
| Plastic / Lined Anti-Corrosion | Chamber lined with PTFE / PFA, or constructed entirely from PP / PVC / PVDF plastics. | Hydrochloric acid, hydrofluoric acid, concentrated sulfuric acid, caustic soda. | |
| Exotic Alloy | Wetted parts in Titanium, Hastelloy, or Monel alloys. | Severe corrosion combined with high pressure, high chloride media, desalination plants. | |
| By Media Characteristics | Heated / Thermal Tracing | Chamber wrapped with steam/hot water jackets atau electric heat tracing (EHT) to maintain temperature. | Heavy fuel oil, asphalt, benzene, crystallizing or high-viscosity media. |
| Liquid-Liquid Interface | Features a precision weighted dual-density float floating strictly at the liquid interface. | Oil-water separators, extraction towers, settling tanks. |
Safe, maintenance-free, and high-visibility liquid level visual indication across extreme, corrosive, and hazardous process industries.
In oil refineries, offshore platforms, and petrochemical complexes, Magnetic Level Gauges (MLG)
"We sourced 24 sets of high-temperature, high-pressure Magnetic Level Gauges from Instrava for our Dammam refinery project. Operating continuously under extreme heat and heavy vibration, the units have achieved 100% leak-free, fault-free performance. Even under direct desert sunlight, the dual-color magnetic flags remain effortlessly readable, completely eliminating our persistent fugitive emission issues. The overall craftsmanship, manufacturing quality, and engineering precision are deeply impressive!"
— Tariq Al-Ghamdi, Lead Procurement Engineer
replace fragile glass level gauges. They provide 100% leak-free, high-visibility monitoring for crude oil storage, flash drums, and oil-water separators.
By utilizing custom-weighted floats calibrated to precise specific gravities, magnetic level indicators excel at measuring liquid-liquid interfaces (such as oil/water boundaries). The complete physical isolation of volatile hydrocarbons within a sealed bypass chamber guarantees zero risk of toxic or flammable vapor leaks.
Chemical plants handle aggressive, toxic, and highly reactive media such as hydrochloric acid (HCl), sulfuric acid (H₂SO₄), caustic soda, and chlorine solutions.
Engineered with specialized wetted materials—including PTFE/PFA linings, Hastelloy C-276, Titanium, or PP/PVC—magnetic level gauges provide ultimate corrosion resistance. Completely isolated from process fluid fumes, the magnetic indication flags remain clean and readable indefinitely without glass etching or leakage risks.
Thermal power plants, combined-cycle facilities, and industrial utility boilers demand uncompromised safety across high-pressure boiler steam drums, feed-water heaters, deaerators, and condenser hotwells.
Operating reliably under pressures up to PN160 / Class 2500# and temperatures up to 450°C, high-temperature magnetic level gauges feature ceramic flags and high Curie-point magnets. They provide clear visual indication unhindered by dense steam phases that typically distort optical sight glasses.
Pressurized, liquefied, and cryogenic gases—such as Liquefied Petroleum Gas (LPG), Liquefied Natural Gas (LNG), anhydrous ammonia, and liquid nitrogen—require hermetic sealing and anti-frost design.
Equipped with specialized vacuum-insulation thermal jackets and acrylic anti-frost extensions, magnetic level gauges prevent ice buildup on the display scales at temperatures down to -160°C. Explosion-proof certification (ATEX/IECEx Ex d) makes them the ideal choice for spherical fuel tanks and LPG storage terminals.
In municipal waterworks, industrial effluent treatment plants, and seawater desalination facilities (SWRO), magnetic level indicators are widely specified for chemical dosing tanks, neutralization pits, and sludge reservoirs.
They offer a rugged, low-maintenance alternative to ultrasonic sensors in foaming or turbulent tank conditions, providing direct visual level readings without requiring power supplies or periodic recalibration.
Hygienic manufacturing environments require strict compliance with sanitary standards (3-A, FDA) for purified water (PW), water for injection (WFI), fermenters, and syrup storage tanks.
Sanitary magnetic level gauges feature electro-polished 316L stainless steel chambers, sanitary tri-clamp process connections, and dead-leg-free internal designs that support CIP (Clean-In-Place) and SIP (Sterilization-In-Place) procedures while preventing bacterial growth.
Comprehensive spec selection covering standard, anti-corrosive, high-temp/high-pressure, cryogenic, and interface level measurement for Oil & Gas, Chemical, Power, and Water Treatment applications.
Dengan memilih item pada matriks spesifikasi di atas, muatan rekayasa terperinci Anda di bawah ini akan dibuat secara otomatis.
1. Pertanyaan (Kami akan menanggapi pertanyaan Anda dalam waktu 24 jam untuk mengonfirmasi spesifikasi dan memulai prosesnya.)
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8. Layanan Purna Jual (Kami secara aktif menangani dan menyelesaikan masalah melalui saluran daring maupun luring. Kami sangat mengutamakan layanan purna jual, karena hal ini mencerminkan tanggung jawab dan reputasi kami—yang menjadi landasan pertumbuhan jangka panjang Instrava.)
Berbelanja di Instrava memberi Anda keuntungan ganda—harga langsung dari sumbernya layaknya pabrik, dipadukan dengan layanan profesional, ragam produk, serta mitigasi risiko dari mitra pengadaan terkemuka. Berikut cara kami memberikan nilai tambah bagi bisnis Anda:
Kurasi Pasar yang Objektif (Pilihan Lebih Banyak & Harga Lebih Baik): Berbeda dengan pabrik tunggal yang hanya memuji kapasitas produksinya sendiri, atau perusahaan perdagangan tradisional yang terbatasi oleh jaringan koneksi pribadi, kami mengevaluasi keseluruhan lanskap manufaktur di Tiongkok. Kami membandingkan dan memilih pemasok dari berbagai pabrik terverifikasi untuk memastikan harga paling kompetitif serta spesifikasi produk yang tepat sesuai kebutuhan Anda.
100% Transparansi (“Otak” Anda di Tiongkok): Kami tidak pernah bersembunyi di balik kedok sebagai “produsen palsu.” Kami bertindak sebagai departemen pembelian Anda yang transparan dan berbasis di negara tersebut. Anda selalu tahu persis siapa yang memproduksi barang-barang Anda, berapa biayanya, dan berapa lama waktu tunggu yang sebenarnya.
Kualitas Tanpa Kompromi & Mitigasi Risiko: Bisnis kami dibangun atas dasar kemitraan jangka panjang, bukan transaksi sekali jalan yang menguntungkan. Kami melakukan pengendalian kualitas yang ketat dan independen dari sudut pandang Anda sebelum pengiriman, sehingga melindungi Anda dari cacat produk pasca-pembelian dan kendala komunikasi.
Komunikasi & Layanan yang Efisien: Tidak perlu lagi berurusan dengan layanan pabrik yang lambat dan berorientasi pada produksi. Kami menyediakan satu titik kontak yang sangat responsif untuk mengelola seluruh rantai pasokan—mulai dari negosiasi dan pemeriksaan kualitas hingga logistik pengiriman—sehingga menghemat waktu Anda dan mengurangi kerumitan.
Pengukur level, pengukur aliran, transmiter, sakelar level, pengontrol alarm gas, dan sebagainya.
Filosofi kami yang berpusat pada pelanggan mengutamakan kebutuhan pengadaan mereka.
1. Pertama-tama, pastikan produsennya berdasarkan harga produk serta kapasitas dan kualifikasi pabrik produksinya.
2. Memverifikasi lingkungan produksi pabrikan melalui rekaman video dan inspeksi langsung di lokasi untuk memastikan kepatuhan seluruh proses produksi produk.
3. Pastikan dilakukan pengujian produk pasca-produksi serta simpan data dan bukti video dari proses verifikasi (metode pengujian dan verifikasi bervariasi tergantung pada produknya).
Pertama-tama, kami mengonfirmasi kemasan produk bersama pihak pabrik (produk yang berbeda memerlukan metode pengemasan dan pengiriman yang berbeda pula. Peralatan berat dan pengiriman dalam jumlah besar diamankan dengan kokoh di dalam kontainer angkutan laut menggunakan rangka baja rekayasa yang dirancang khusus, peti kayu berlapis-lapis yang sangat kokoh, serta kantong vakum tahan karat kelas industri. Alat-alat presisi dilindungi dari benturan dan dijaga agar tetap dalam posisi yang stabil; pabrik kami memiliki pengalaman yang luas di bidang ini. Label khusus ditempelkan pada kemasan luar).
Kedua, kami terus menjalin komunikasi dengan perusahaan pengiriman untuk memastikan kondisi barang dan mengimbau mereka agar menangani proses bongkar muat dengan hati-hati.
1. Instrava menawarkan garansi komprehensif selama 12 hingga 24 bulan (masa garansi yang berlaku tergantung pada lini produk), yang mencakup semua cacat produksi dan komponen.
2. Apabila diperlukan dukungan teknis daring, pelanggan dapat terhubung dengan para insinyur pabrik secara daring. Bimbingan secara real-time diberikan untuk pemasangan, kalibrasi di lokasi (untuk instrumen), dan pengoperasian awal. Apabila diperlukan dukungan insinyur di lokasi, kami akan mengatur agar seorang insinyur mengunjungi lokasi tersebut.
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4. Apakah suatu produk perlu diganti atau diperbaiki akan dinyatakan secara jelas dalam perjanjian pembelian.
Kami memilih produsen dari sudut pandang yang netral dan tidak memihak, dengan selalu mengutamakan kepentingan terbaik Anda.
Keberadaan kami bergantung pada upaya kami dalam membantu Anda menemukan produk yang paling sesuai dengan kebutuhan Anda.
Berbasis di Tiongkok, kami dapat melakukan inspeksi langsung di lokasi terhadap lingkungan produksi dan kualitas produk.
Kami membantu Anda menghindari perantara yang menyamar sebagai pabrik.
Kami memudahkan layanan purna jual yang lebih lancar, sehingga menghilangkan kendala perbedaan zona waktu dan keterlambatan yang sering terjadi saat berurusan langsung dengan pabrik.
Tim multibahasa kami memastikan komunikasi yang efektif.
Bagi sebuah perusahaan rintisan di bidang perdagangan, setiap interaksi dengan klien merupakan kesempatan yang berharga—sebagai tanda bahwa Anda bersedia mempercayai kami dan memberi kami kesempatan untuk membuktikan diri.
Di era digital, meskipun informasi mudah diakses, kesalahpahaman sering kali mengaburkan rasa saling percaya di antara sesama manusia.
Instrava sepenuhnya bertumpu pada kepercayaan; hal ini merupakan filosofi inti kami dan landasan keberadaan kami di masyarakat. Inilah landasan utama bagi pertumbuhan jangka panjang kami serta komitmen kami untuk melayani masyarakat.
Mohon percayalah kepada kami.
Kirimkan kebutuhan produksi Anda, dan tim kami akan menghubungi Anda kembali dengan solusi profesional dalam waktu 24 jam.