Imported products represented by our company
Explosion-proof valves/plates for dual-fuel main and auxiliary engines, manufactured by Hoerbiger of Austria.
Dynamic/static balancing valves manufactured by Frese of Denmark.

Our company’s main self-manufactured products
Measurement and Instrumentation Series: flow meters, mass flow meters, magnetic level gauges, dual-color level gauges, underground level gauges, tubular level gauges, float-type level gauges, plate-type level gauges, and various instruments and sensors.
Valve series: butterfly valves, butterfly check valves, side shell valves, sea inlet valves, PV valves, safety valves, pressure-reducing valves, marine flanged cast-steel valves, marine flanged bronze valves, level-gauge self-closing valves, screw-down valves, flow-control valves, steam traps, self-closing relief valves, fire-service valves, pneumatic quick-closing valves, and quick-closing valve control cabinets, among others.
Valve assembly series: steam trap assemblies, pressure-reducing valve assemblies, interlocked valve assemblies, cargo oil heating valve assemblies, DBB valve assemblies, and others;
System series: valve remote-control systems, liquid-level telemetry systems, cargo-oil ESD systems, oil-content detection systems, hydraulic hand pumps, electro-hydraulic pump stations, and more;
Nozzle series: spiral nozzles, cab cleaning nozzles;
Stainless steel product series: stainless steel pipes, stainless steel flanges, etc.;
Other accessory series: material cabinets, seawater filters, fuel tanks, depth-measuring injection heads, depth gauges, vibrators, fireproof observers, flow meters, and more.

I. Product Overview

A throttling control valve is a flow-control component that regulates fluid flow by varying the cross-sectional area of the flow passage. It is widely used in fluid-control systems to achieve precise flow regulation and pressure control.

II. Operating Principle

A throttling control valve reduces fluid flow by decreasing the cross-sectional area of the flow passage, thereby achieving flow regulation. As fluid passes through the throttling valve, the reduction in flow area leads to an increase in flow velocity and a corresponding decrease in pressure. Throttling valves feature a simple structure, high reliability, and the ability to provide precise flow control.

III. Operating Procedures

1. Before installing the throttling valve, ensure that the pipeline is clean to prevent contaminants from entering the valve.

2. Install the throttling valve on the pipeline and ensure a tight seal to prevent leakage.

3. Adjust the opening of the throttle valve as needed: the larger the opening, the greater the flow; the smaller the opening, the lesser the flow.

4. During operation, the throttle valve’s operating condition shall be inspected regularly, and any abnormalities shall be addressed promptly.

IV. Precautions

1. When adjusting the throttle valve, care should be taken not to over-adjust, so as to avoid damaging the valve.

2. During operation, care should be taken to avoid impact and vibration on the throttle valve to prevent damage.

3. When replacing the throttle valve, be sure to select a model that matches the original to avoid compromising performance.

V. Maintenance and Upkeep

1. Regularly clean the throttle valve to remove impurities and dirt, ensuring its proper operation.

2. Throttle valves that are not used for extended periods should be properly protected against rust to ensure their normal operation.

3. During maintenance and servicing, if the throttle valve is found to be damaged or malfunctioning, it shall be promptly replaced or repaired.