Professional Industrial Process Observation Equipment Manufacturer

Wenzhou Luosimeng Machinery Co., Ltd. delivers over 100 types of reliable, serviceable, and cost-effective sight flow indicators and monitoring systems for critical industrial applications worldwide.

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Visual Flow Monitoring

Real-time observation of fluid flow and media condition in pipelines.

Industrial-Grade Build

Durable construction for harsh environments and continuous operation.

Customizable Solutions

Tailored designs to meet specific application requirements.

About Rosemoun

Wenzhou Luosimeng Machinery Co., Ltd. is a professional manufacturer specializing in industrial process observation equipment. With over a decade of experience, we produce more than 100 kinds of sight flow indicators (SFI), transmitters, and controllers designed for reliability, ease of service, and economic value.

Our LSMSFI series sight flow indicators are engineered for precise local visual monitoring of flow rate and media condition. They are ideal for applications requiring high clarity, durability, and compatibility with various industrial fluids and pressures.

We support global partners and welcome inquiries from potential agents seeking a strong manufacturing partner with technical expertise and responsive service.

Learn More on Official Site

Our Products

Explore our comprehensive range of industrial observation and flow control equipment, built for performance, safety, and long-term reliability.

Sight Flow Indicator

High-clarity visual monitoring device for observing fluid flow, phase changes, and media condition in pipelines. Available in multiple materials and connection types.

Borosilicate glass viewport
SS316/SS304 body options
Threaded, flanged, or clamp connections

Sight Flow Transmitter

Combines visual inspection with electronic signal output for remote monitoring. Detects flow presence and sends 4-20mA signals to control systems.

Integrated sensor technology
IP67 protection rating
Suitable for automated processes

Sight Flow Controller

Advanced unit integrating flow visualization, sensing, and control logic. Enables automatic response to flow anomalies or stoppages.

Programmable logic options
Alarm and shutdown functions
HMI interface available

Flow Filter and Valve

Combination units that filter particulates while allowing visual confirmation of flow. Ideal for protecting downstream equipment.

Stainless steel mesh filters
Easy-clean design
Inline or side-mount options

High-Pressure Sight Indicator

Designed for systems operating above 100 bar. Reinforced housing and thick glass for safety in demanding applications.

Up to 300 bar rating
Safety shield option
ASME B16.5 compliance

Sanitary Sight Flow Indicator

Polished 3A and FDA-compliant units for food, beverage, pharmaceutical, and biotech industries.

Ra < 0.8μm surface finish
Tri-clamp connections
CIP/SIP compatible

Explosion-Proof Transmitter

Certified for use in hazardous environments. ATEX and IECEx compliant models available.

Flameproof enclosure
Zone 1 & 2 approval
Intrinsically safe options

Multi-Port Flow Viewer

Allows observation from multiple angles or integration with sampling lines and sensors.

3-6 connection ports
Custom port configurations
Ideal for R&D and pilot plants

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Why Choose Rosemoun?

Our commitment to quality, innovation, and customer support makes us a trusted partner in industrial process monitoring.

Reliable Quality

ISO-certified manufacturing with rigorous testing for every unit.

Easy Maintenance

Modular design allows quick replacement and servicing without downtime.

Global Support

Serving clients in over 50 countries with local agent networks.

Competitive Pricing

High-value solutions without compromising on performance or safety.

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What materials are used in your sight flow indicators?

Our standard models use SS304 or SS316 stainless steel bodies with borosilicate glass viewports. Special alloys and fluoropolymer seals are available for corrosive environments.

Can you customize designs for specific applications?

Yes. We offer OEM/ODM services and can modify connection types, pressure ratings, materials, and integration features based on your requirements.

Do you provide technical support and installation guidance?

Absolutely. Our engineering team provides full technical documentation, CAD drawings, and remote support. On-site assistance may be arranged for large projects.

What certifications do your products have?

Our manufacturing complies with ISO 9001 standards. Products can be supplied with CE, ATEX, 3A, and other certifications upon request.

How can I become a distributor or agent?

We welcome partnership inquiries. Contact us through the official website to discuss market potential, support, and terms.

Get in Touch

For product inquiries, technical support, or partnership opportunities, visit our official website to contact the Rosemoun team.

Visit Official Website to Contact

Phone

+86 577 86996383

+86 13091902237

Email

[email protected]

Location

102 & 201 Room, 19th Building, No.696, 5th Binhai Road
Economic & Technological Development Zone
Wenzhou, Zhejiang, China

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