Custom Procurement Services Displacer Level Transmitter, Supplier in China
Your trusted sourcing partner for displacer level transmitter 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 EPC contractors, OEM equipment manufacturers, procurement managers, distributors, traders, and engineering consultants. We provide curated product quotations from 3 pre-vetted factories
Standardized Supplier Qualification ProcessEvery manufacturing partner is evaluated through our standardized supplier qualification process before being included in the Instrava sourcing network. The assessment focuses on manufacturing capability, engineering expertise, quality control, delivery reliability, and long-term service support., helping our clients drastically save time on sourcing, screening, and supplier comparison.
Whether you are building new industrial production lines, upgrading and replacing legacy instruments, sourcing for wholesale trade, or requiring custom OEM production, we empower you to secure the most perfectly matched products.
Let’s collaborate for mutual success. With our customer-centric service, Instrava is your trusted procurement partner in China.
Discover the essential parameters to streamline your customization process
The displacer level transmitter is a measurement instrument designed for high-temperature, high-pressure, and complex media applications. Operating on Archimedes’ principle of buoyancy and torque tube or force-sensing technology combined with magnetic coupling, it primarily consists of a sensor and a transmitter unit.
Note: Specifications may vary depending on manufacturer configuration and customization requirements. Please contact us for detailed technical confirmation.
| Parameter | Specification | Notes |
|---|---|---|
| Measuring Range | 300–6000 mm (Customizable) | Available in customized lengths according to tank height |
| Accuracy | ±0.5% FS / ±1.5% FS / ±2.0% FS | Different accuracy grades available depending on manufacturer and application requirements |
| Float Material | SS304, SS316L, Hastelloy (HC) Hastelloy is one of the most comprehensive alloys in terms of corrosion resistance, exhibiting excellent resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking. However, it is expensive and difficult to process. Hastelloy is suitable for environments containing strong acids (hydrochloric acid, sulfuric acid, hydrofluoric acid), high-concentration chlorides, wet chlorine gas, and highly corrosive chemical intermediates., Titanium Titanium possesses exceptional resistance to salt and seawater corrosion, low density (light weight, fast buoyancy response), and high strength. However, it is not resistant to dry chlorine, fuming nitric acid, and hydrofluoric acid (HF). Titanium is suitable for applications in seawater, brine, chlorine bleaching, seawater desalination equipment, and oil-water separation on offshore platforms., etc. | Material can be customized according to the measured medium |
| Interface Measurement Condition | Density difference between two media ≥ 0.1 g/cm³ | Applicable for liquid-liquid interface measurement |
| Medium Density | 0.1–1.5 g/cm³ | Depends on float buoyancy design |
| Medium Temperature | ≤80°C / ≤150°C / ≤250°C / ≤400°C | High-temperature versions available with customized design |
| Medium Pressure | Standard Type: ≤4.0 MPaHigh Pressure Type: ≤42 MPa | High-pressure models available through customized design or selected manufacturers |
| Pressure Rating | Standard Type:DN40–DN50 / PN4.0 MPaDN80–DN100 / PN1.6 MPaHigh Pressure Type:DN40–DN50 / PN10.0 MPaSpecial Type:According to customer requirements | Flange rating depends on process connection requirements |
| Output Signal | 4–20 mA DC (2-wire system) | Optional remote level transmission output |
| Communication Interface | HART / Modbus RTU (RS485)/Ethernet-APL (Future Option) | Digital communication options depend on transmitter configuration |
| Protection Rating | IP65 / IP67IP68 (Customized Supply) | Protection level depends on enclosure and installation conditions |
| Explosion Protection | Intrinsically Safe: Ex ia IIC T6 GaFlameproof: Ex d IIC T6 Gb | Suitable for hazardous area applications |
| Process Connection | Customized according to application requirements | Flange, threaded, or other process connections available |
| Wetted Material | SS304, SS316L, Hastelloy, Titanium, etc. | Selected according to corrosion resistance requirements |
Building a Trusted Factory Network to Help You Source Reliable Industrial Products
China has a diverse and rapidly developing instrumentation market with a wide range of product options. The manufacturers we work with are carefully selected based on their R&D and production experience, including companies with more than 10, 20, and 30 years of industry expertise.
Our selected manufacturers have extensive experience serving global markets and provide products compliant with international certifications and standards, including CE, ATEX, IECEx, EAC, UL, SIL, and ISO 9001 quality management systems.
Whether you need standard products or customized solutions, we can help you solve your level measurement challenges.
As a professional sourcing and service partner, we provide reliable support and quality service whether you purchase a single unit, request a sample, or place a large-volume order.
“Within only three hours, you provided me with three quotation options from different manufacturers for a single level gauge. I was truly impressed and very satisfied with your fast response and sourcing capability.” — Miraki, Brazil
Full Product Matrix & Customization Overview
| Product Series | Sub-Categories |
External Cage Series External Cage / Chamber & Process Connection CustomizationNozzle Orientation Customization: Options include Side-Side, Top-Side, and Side-Bottom to seamlessly match existing field piping interfaces.
Flange Standards & Pressure Ratings: Compatible with ASME/ANSI (150# to 2500#), DIN/EN (PN16 to PN400), and GB/T standards. Facing options can be customized with Raised Face (RF), Ring Type Joint (RTJ), Tongue & Groove (TG), and more.
Vent & Drain Valve Configurations: Customizable valve types (ball, needle, or gate valves), end connections (flanged, threaded, or socket/butt-welded), and matching body/trim materials.
|
Standard External Cage |
| High-Temp & High-Pressure External Cage | |
| Corrosion-Resistant / Heating Jacket Cage | |
| Hygienic / Compact External Cage | |
Internal Series Top-Mounted / Flexible Displacer SeriesThe Top-Mounted / Flexible Displacer Series is engineered for applications where side connections on vessels are impossible, installation space is highly constrained, or deep underground tanks require continuous level monitoring. By inserting the displacer assembly directly through the top nozzle, this series provides a versatile and cost-effective alternative to external chamber instruments.
Direct Vessel Insertion: Eliminates the need for external cages or side piping, reducing overall installation weight, footprint, and piping costs—ideal for underground sumps, storage pits, and top-access storage tanks.
Flexible Segmented Displacer Options: For wide measuring ranges or installations with severely limited vertical overhead clearance, multi-segment or jointed/flexible displacer assemblies allow easy insertion and maintenance without requiring tall cranes or excessive headroom.
Agitation Protection (Stillwell / Guide Tube): Can be integrated with internal guide tubes or stillwells to isolate the displacer from internal vessel turbulence, heavy agitation, or cross-currents, ensuring stable and drift-free measurement readings.
|
Top-Mounted Standard Internal |
| Top-Mounted with Stillwell / Guide Tube | |
| Side / Top-Mounted Flexible Displacer |
Key Customization Dimensions
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Displacer Sizing & Density Matching: Tailored length (300 mm–6000 mm+) and buoyancy balance optimized for specific fluid densities or narrow interface differentials (Δρ≥0.03 g/cm3).
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Materials of Construction (MOC): From 316L SS to Hastelloy C276, Monel, Titanium, and PTFE coatings.
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Chamber Geometry & Flanges: Flexible nozzle configurations (Side-Side, Top-Side, etc.) and pressure ratings up to ANSI 2500# / PN400 with customized vent/drain valves.
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Smart Electronics & Protocols: HART, Foundation Fieldbus, PROFIBUS PA, with options for remote display, dual-compartment explosion-proof housings, and SIL2/SIL3 certification.
Industrial Applications of Displacer Level Transmitters
Reliable buoyancy-based measurement for demanding process environments.
Petroleum Refining & Petrochemicals
In the petroleum refining and petrochemical industries, displacer level transmitters are widely deployed in critical units such as distillation column bottoms, high-pressure separators, alkylation units, and electrostatic desalters.
These applications frequently involve volatile light hydrocarbons with extremely low dielectric constants, as well as complex oil-water emulsion layers. The displacer’s reliance on pure buoyancy makes it immune to dielectric shifts, rendering it one of the most dependable instruments for accurate total level and liquid-liquid interface measurements under harsh operating conditions.
Power Generation & Energy
Power plants—including conventional thermal, combined-cycle, and nuclear facilities—rely heavily on displacer level transmitters for high-stress boiler and steam loop monitoring.
Typical equipment includes high-pressure and low-pressure feedwater heaters, deaerators, condensers, and boiler steam drums. Because these locations experience extreme thermal expansion, intense pressures, and saturated steam, the mechanical robustness of torque tube and force-sensor technology ensures continuous, drift-free measurement where optical or radar sensors often fail due to vapor phase attenuation.
Natural Gas & Chemical Processing
In natural gas processing and general chemical production, these transmitters are essential for managing gas-liquid separation, evaporation, and chemical synthesis.
They are commonly installed on flash drums, gas scrubbers, evaporators, and liquefied gas storage vessels (LPG/LNG). When process fluids boil, flash, or generate thick surface foam, non-contact level transmitters can encounter severe signal absorption. The displacer body penetrates through foam and turbulent vapor layers directly into the liquid, providing stable and precise level tracking.
Offshore Oil & Gas Platforms
On offshore production platforms and FPSO (Floating Production Storage and Offloading) vessels, displacer transmitters are extensively used in primary production separators and test separators.
These environments present unique mechanical challenges, including wave-induced vessel motion and harsh marine corrosion. Configured within robust external cages, displacer instruments effectively damp internal fluid sloshing, ensuring uninterrupted operation, accurate oil-water interface control, and safety-critical trip protection in high-vibration offshore settings.
Displacer Level Transmitter Ordering Matrix
Interactive configuration tool for heavy oil & gas, petrochemical, chemical pharma, and severe industrial applications.
Mechanical Indicator
Analog Output
Digital Intelligence
(Dual Medium Interface)
e.g., 20/RF/14 (DN20 RF welded)
e.g., 16/G1/2" (G1/2" Female)
e.g., 17/25/4 (OD 25mm, WT 3mm)
Request a Commercial Offer
Your technical matrix configurations will dynamically sync down. Our international B2B department will respond within 2 hours.
FAQ For Purchasing Displacer Level Transmitters
What is the process for purchasing displacer level transmitters from Instrava supplier ?
1. Inquiry (We will respond to your inquiry within 24 hours to confirm specifications and initiate the process.)
2. Quotation (Quotation timelines vary based on the project type and your specific requirements. Standard stock items are quoted within one day, while special orders require three days or a mutually agreed-upon timeframe.)
3. Product Selection (We will present 3–5 product options and pricing for your approval. During this stage, we verify the manufacturer’s production capabilities and relevant national certifications.)
4. Contract, Prepayment, and Production (A 40% prepayment is required to initiate production at a qualified facility. For stock items, we promptly arrange for product testing and packaging.)
5. Interim Payment (Upon successful completion of production and quality inspection, the next 50% of the total amount is due. For stock items, this payment is made after packaging is complete.If the transaction amount does not exceed $50,000, the remaining 60% is paid.)
6. Shipment (You may designate a freight forwarder, or we can arrange shipping for you.)
7. Receipt of Goods (Our Quality Guarantee: When your cumulative order value reaches $50,000, you pay the remaining 10% only after receiving and verifying the product quality. We let our quality do the talking.)
8. After-Sales Service (We actively address and resolve issues through both online and offline channels. We place great importance on after-sales support, as it reflects our responsibility and reputation—the foundation of Instrava’s long-term growth.)
What are the advantages of buying products from Instrava ?
Buying from Instrava gives you the best of both worlds—the direct-from-source pricing of a factory, combined with the professional service, product range, and risk mitigation of an elite sourcing partner. Here is how we deliver value to your business:
Unbiased Market Curation (More Choices & Better Prices): Unlike single factories that only praise their own capacity, or traditional trading companies restricted by personal connection networks, we evaluate the entire Chinese manufacturing landscape. We benchmark and source from multiple verified factories to secure the most competitive pricing and the exact product specifications you need.
100% Transparency (Your “Brain” in China): We never hide behind the veil of being a “fake manufacturer.” We act as your transparent, in-country purchasing department. You always know exactly who is producing your goods, how much they cost, and what the real lead times are.
Uncompromised Quality & Risk Mitigation: Our business is built on long-term partnerships, not one-off high-profit transactions. We perform strict, independent quality control from your perspective before shipment, protecting you from post-purchase defects and communication breakdowns.
Streamlined Communication & Service: No more dealing with slow, production-centric factory service. We provide a single, highly responsive point of contact that manages the entire supply chain—from negotiation and quality checks to shipping logistics—saving you time and reducing headaches.
What types of industrial automation instruments products can you purchase from Instrava?
Level gauge, flowmeter, transmitter, level switch, Gas Alarm Controllers etc.
How to ensure the reliability of the purchased products?
Our customer-centric philosophy prioritizes their procurement needs.
1. Initially confirm the manufacturer based on product pricing and the strength and qualifications of the production factory.
2. Verify the manufacturer’s production environment through video and on-site inspections to check the compliance of the entire product manufacturing process.
3. Ensure post-production product testing and retain data and video evidence from the verification process(testing and verification methods vary depending on the product).
How does Instrava ensure product protection and physical safety during cross-border shipping?
Firstly, we confirm the packaged products with the factory (different products require different packaging and shipping methods. Heavy equipment and bulk shipments are securely secured within sea freight containers using custom-designed engineering steel frames, heavy-duty multi-layer wooden crates, and industrial-grade vacuum rust-proof bags. Precision instruments are protected against impacts and maintained in a stable position; the factory has extensive experience in this area. Custom labels are affixed to the outer packaging).
Secondly, we maintain communication with the freight company to confirm the condition of the goods and advise them to handle the loading and unloading processes with care.
What warranty policies and after-sales technical support does Instrava offer to international customers?
1. Instrava offers a comprehensive 12 to 24-month warranty (specific warranty period depends on the product line), covering all manufacturing and component defects.
2. When online technical support is needed, customers can connect with factory engineers online. Real-time guidance is provided for installation, on-site calibration (for instruments), and commissioning. When on-site engineer support is needed, we will arrange for an engineer to visit the site.
3. In the event of component issues, we will ship replacement parts via international express delivery (DHL/FedEx) to minimize your project downtime.
4. Whether a product requires replacement or repair will be clearly stated in the purchase contract.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
