DP FLOW MEASUREMENT • EST. 1989
Differential Pressure Flow Meter Manufacturer Since 1989
Engineered primary elements and integrated metering systems for oil and gas, chemical, power, metallurgy and district energy projects.
JINAN MANUFACTURING CAMPUS
See the manufacturing base behind every project.
Application engineering, precision machining, assembly, inspection and export documentation are coordinated through one accountable facility.
Explore our manufacturing capabilityPRODUCT PORTFOLIO
Primary elements for real process conditions
Adaptive Wide-Range DP FlowmeterAdaptive Wide-Range DP Flowmeter
Dual-orifice or dual-balanced architecture
Measure stable low demand and peak flow with one integrated DP platform. The approved public baseline is 100:1, with ±1% in the normal operating band and ±3.75% at switching points and the two range ends.
Technical details
Balanced Flow MetersBalanced Flow Meters
Multi-hole balanced element
Pipeline, wafer and replaceable-core differential-pressure meters with an application-specific multi-hole primary element for compact industrial flow measurement.
Technical detailsSmartBalance ProValve®
5-in-1 metering and control
A patented 5-in-1 platform combining flow measurement, prepaid management and valve control for distributed energy users.
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Standard Orifice PlatesStandard Orifice Plates
Corner / flange / D-D/2 taps
A standardized differential-pressure primary element for liquids, gases and steam, manufactured with controlled dimensions for repeatable installation.
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Venturi TubesVenturi Tubes
Convergent throat and diffuser
ISO 5167-4 classical Venturi tubes for stable differential-pressure measurement with controlled pressure recovery and low permanent loss.
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Flow NozzlesFlow Nozzles
ISO 5167-3 ISA 1932 / long-radius nozzle
ISO 5167-3 ISA 1932 and long-radius flow nozzles engineered for steam, feedwater, gas and demanding high-pressure service.
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V-Cone Flow MetersV-Cone Flow Meters
Self-conditioning center-body DP measurement
A 29° included-cone-angle differential-pressure flow meter supplied only through an individual Clause 7 flow-calibration route for compact liquid, gas and steam metering.
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Wedge Flow MetersWedge Flow Meters
Segmental opening for difficult service
An ISO 5167-6-referenced wedge primary element for viscous single-phase fluids and selected solids-bearing duties, supplied with individual flow calibration.
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Full-Section Matrix FlowmetersFull-Section Matrix Flowmeters
Full-section sampling · low permanent loss
A patented multi-point differential-pressure array engineered for large circular pipes, rectangular ducts and gas-flow profiles that a single-point or single-bar probe may not represent.
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Double-Venturi Gas Flowmeters
Stronger DP signal for low-velocity gas
Application-engineered internal and insertion differential-pressure assemblies for low-velocity gas in large circular and rectangular ducts.
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Lierba & Averaging Pitot FlowmetersLierba & Averaging Pitot Flowmeters
Anti-plugging design · online-service options
Shizhong Lierba™ combines a low-loss insertion probe with a proprietary anti-plugging pressure-opening concept, drainage-friendly geometry and engineered purge or online-service options for large pipes and difficult gases.
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Vortex Flow Meters
No moving parts · optional pressure and temperature compensation
Shizhong-manufactured full-bore vortex-shedding flowmeters for steady, single-phase steam, gas and clean-liquid service, with volumetric output and optional pressure/temperature compensation.
Technical detailsWHY SHIZHONG
Engineering discipline from inquiry to commissioning
Application engineering
Selection begins with fluid, operating range, piping and measurement objective.
Integrated manufacturing
Engineering, machining, assembly and inspection are managed through one accountable workflow.
Quality control
Material, dimensions and documentation are checked against approved project requirements.
30+ patents
A sustained engineering program supports practical innovation in DP measurement.
Lifecycle support
Documentation, commissioning guidance and replacement support extend beyond delivery.
Responsive service
Business-day enquiries are normally acknowledged within one business day.
CERTIFICATES & APPROVALS
Credentials for supplier qualification
Review certificate numbers, approved scope and validity information for procurement and project due diligence.
Featured invention patent
Dual-Orifice Wide-Range Flowmeter Technology
Officially titled “A Differential-Pressure Measurement Device,” this 2025 invention-patent grant reflects Shizhong's continuing development of dual-orifice wide-range flowmeter technology for demanding operating envelopes.
SELECTED PROJECT EXPERIENCE
Flow-measurement experience across process industries
Representative 2020–2025 supply records cover end users, EPC contractors and system integrators in pulp and paper, steel, petrochemical and energy projects.
GLOBAL PROJECT SUPPORT
Manufactured in Jinan. Engineered for international projects.
We support EPC contractors, operators and equipment integrators with English documentation, application review and export coordination.
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