Gear Valve – Gear Operated Gate Valve


Gear valves regulate the flow of liquid or gas.

What is a Gear Valve?

Gear valves are the more complex of the two manual operators. Their installation and operation usually require more effort than lever operated valves. Most gear valves have worm gears that make them easier to open and close. This means that the majority of gear valves can fully open or close with only a few turns.

How to use a Gear Operated Valve?

The main quality that sets gear-operated valves apart is the way in which it is operated. This type of valve requires manual operation. Gear-operated valves regulate the flow of liquid or gas. This involves the operation of a wheel moving a disc that holds or releases the liquid or gas through a system. This is hand-operated, making it simple to control the flow whenever you want.

Typically, manual operators, such as gear-operated valves, are inexpensive. These valves are a good choice for high-stress environments and small spaces. Though gear-operated valves are a little more complex than other manually operated valves, most can open or close with a few simple turns. However, with some applications, this can become tiresome over time.

Applications of Gear Valves

Gear operated valves are usually used in high-stress & big size situations.

What is a Gear Operated Gate Valve?

ZECO gear operated gate valve is defined according to the driving mode. Gear operated gate valve is mainly used for large-diameter gate valves. Because of the large torque, it is almost impossible to open the valve by manual operation. ZECO, as a Chinese manufacturer of gear operated gate valves, can design and manufacture the gear units to be waterproof for outdoor use according to customers’ requirements.ZECO gear operated gate valve is available in carbon steel series, stainless steel series, alloy steel series, and low-temperature steel series. As an expert in industrial pipeline valve solutions, ZECO specializes in designing and manufacturing industrial valves to assure customers of quality.

Features of Gear Operated Gate Valve:

  • ZECO gear operated gate valve adopts the top-mounted stem nut design, because of the corrosion situation of outdoor, the handwheel is probably the easiest to corrosion damage parts, and in replacing the handwheel, ZECO design can ensure the stem and disc in the condition of the open valve, even can’t fall off the handwheel, ensure the valve in the pipeline in the process of maintaining the normal use;
  • The packing of ZECO gear operated gate valve is made of a flexible graphite material, and its sealing performance is very reliable after nearly 30 years of use. But also according to the requirements of the user, the choice of packing ring and grease structure to ensure that the valve stem seal;
  • The stem of ZECO gear operated gate valve is connected to the gate by a t-groove, which allows the gate to be automatically corrected and sealed normally if it is offset by medium impact;
  • The casting of ZECO gear operated gate valve has been strictly inspected by the inspection department to ensure that all materials can meet international standards and make users feel more assured in use.

Material of Gear Operated Gate Valve:

No Part Material
1 Body ASTM A352 LCB
2 Seat Ring ASTM A182 F304 + STL
3 Wedge ASTM A352 LCB + STL
4 Stem ASTM A276 304
5 Bonnet Gasket Graphite + SS304
6 Bonnet Bolt ASTM A193 B8
7 Bonnet Nut ASTM A194 8
8 Bonnet ASTM A352 LCB
9 Backseat ASTM A182 304
10 Stem Packing Reinforced Graphite
11 Gear Actuator ASTM A352 LCB