CONVEYOR SAFETY · INDUSTRIAL VALVES
Reliable protection and shut-off
for material handling and process lines
Shanghai Laiyuan Electric Equipment Co., Ltd. supplies conveyor belt safety devices and industrial valves, with selection support and technical service. From a single pull-cord switch to a CAN-bus address-coding monitoring system; from a standard cast-steel gate valve to an anti-abrasion high-pressure-differential control valve.
PRODUCT LINES
Two product lines, one delivery process
One line covers safety interlocking and condition monitoring for bulk material conveying; the other covers fluid control for power, petrochemical and chemical plants. Both share the same selection, quotation and delivery flow.
Conveyor Belt Safety (LYSH series)
Pull-cord switches, misalignment switches, slip and speed detectors, material flow and level detectors, rip detectors, heavy-duty limit switches, and a CAN-bus address-coding monitoring system.
- Bi-directional pull cord / stainless steel / magnetic / address-coded types
- Two-stage misalignment: stage 1 at 15°, stage 2 at 30°
- Photoelectric speed detection 5–4500 RPM, accuracy better than 99%
- 254 address encoders, communication up to 10 km
- Explosion-proof versions for hazardous areas
Industrial Valves (SWEK series)
Gate, globe, check, ball, butterfly and control valves plus instrument valves, built to ANSI/ASME/API standards.
- Nominal size DN10–DN2000 (3/8″–80″)
- Pressure class 150–4500Lb
- Cast steel, forged steel, stainless and alloy steel
- Manual, gear, electric, pneumatic and hydraulic actuation
- Metal-seated and low-emission designs available
WHY LAIYUAN
Model-for-model interchange, condition-matched supply
Interchangeable models
Pull-cord, misalignment, slip, flow, rip and limit switches are all in supply. Common models can be matched directly to shorten downtime.
System-level solutions
CAN-bus address coding connects distributed safety switches to one bus, reports the exact alarm location, and uploads to DCS over MODBUS.
Standard and project supply
Valves are supplied to ASME B16.34, API 598 and related standards, for both spare-part replacement and new project packages.
Selection support
Datasheets, dimension drawings and catalogues for download; selection assistance by medium, temperature, pressure and connection type.
INDUSTRIES
Where our products work
Power plant coal handling
Pull cord, misalignment, slip and rip protection along the belt line, with address-coded fault location.
Port bulk terminals
Safety interlocking and condition monitoring for long conveyors, shiploaders and stacker-reclaimers.
Cement and mining
Material flow detection and limit protection under high dust and high vibration.
Petrochemical
Gate, ball and control valves plus instrument valves for high-temperature, high-pressure lines.
Start with the catalogue, then talk selection
Seven product catalogues covering conveyor safety and valves, with models, parameter tables and dimension drawings, available for download.