Flow Control Globe Valve

A Flow Control Globe Valve is a precision-engineered device designed for accurate modulation and regulation of fluid flow within a piping system. Its core function is to provide fine-tuned, stable control over flow rate, pressure, and volume, rather than simply serving as an on/off device. This is achieved through its distinctive internal structure, where the disc or plug moves linearly perpendicular to the seat, allowing for progressive restriction or opening of the flow path. This design offers excellent throttling characteristics, enabling operators to precisely set and maintain a desired flow level. It is essential in applications requiring steady flow management, such as balancing in HVAC hydronic systems, process control in industrial settings, and pressure regulation in water distribution networks.

Product Feature and Application

Flow Control Globe Valves are engineered for high-precision throttling and modulation in commercial and residential water systems. Their primary feature is a unique internal plug-and-seat design that allows for fine-tuned adjustments to flow rates and pressures. These valves are essential for balancing HVAC loops, managing boiler feedwater, and controlling chemical dosing in water treatment. Their ability to maintain stable flow under varying conditions ensures system efficiency and prevents equipment wear.

Product Parameter

Technical Specification

Nominal Pressure: 1.6 MPa

Working Medium: Water, Oil, Non‑corrosive and Non‑flammable Gases

Operating Temperature: -20 °C ≤ T ≤ 150 °C

Thread conforms to ISO 228 standard

Product Dimension

Installation Guidelines

1.Clean and prepare the piping system thoroughly before installing the valve.

2.Before installation, remove any protective end caps and inspect the valve ports and seating surfaces to ensure they are clean.

3.Provide adequate support for the valve to avoid stress from connecting piping.

4.Confirm that the valve’s pressure and temperature ratings are suitable for the intended service conditions.

5.Before placing the valve into service, cycle it fully from open to closed to verify smooth operation.

6.After installation, check that the packing nut is properly tightened.

7.For Flow Control Globe Valves, it is recommended to install with the stem vertical and the operating handle on top.

Operating Instructions

Gate and globe valves are manually operated. Turn the handle counterclockwise to open and clockwise to close.

Inspection and Maintenance

1.Routine inspection and preventive maintenance are generally not required, aside from occasional adjustment of stem packing and periodic cycling of the valve from open to closed.

2.If a packing leak occurs, tighten the packing nut clockwise by about a quarter-turn—or until leakage stops—to increase sealing pressure on the stem packing. Never repack a valve while it is under system pressure.

3.When replacing the valve stem, also replace the packing material.

Replacement Parts

Under normal operating conditions, replacement parts are seldom needed. Recommended spare parts for each valve type include:

Globe valves: Handle, handle nut, packing, gland, packing nut, disc and seat.

When ordering parts, please provide the valve’s figure number, size, required part, and approximate age.