Medium-Duty Globe Valve

The Medium-Duty Globe Valve is a fundamental flow control device designed for reliable throttling, regulation, and on/off service in fluid systems. Its function centers on its unique internal design: fluid flows in an "S" path and is controlled by a disc or plug that moves perpendicularly onto a stationary seat ring. This provides precise modulation of flow rate, good shut-off capability, and fine control over pressure and volume. Engineered for robust performance without extreme conditions, it is ideal for balancing, isolating, and regulating water, steam, oil, or gas in commercial buildings, industrial plants, and HVAC systems where frequent adjustment or reliable sealing is required.

Product Feature and Application

Medium-Duty Globe Valves are engineered for precision in commercial HVAC and domestic water systems. Key features include a robust spherical body and a movable disc that allows for accurate throttling and reliable shut-off under fluctuating pressures. They are widely applied in balancing heating/cooling loops, regulating boiler feedwater, and managing steam lines. Their durable design ensures stable flow control and long-term safety for modern building infrastructure.

Product Parameter

Technical Specification

Nominal Pressure: 1.6 MPa

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

Operating Temperature: -10 °C ≤ T ≤ 120 °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 Medium-Duty 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 Medium-Duty Globe 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.