H Series Worm Gear Actuators: Solutions for Large-Scale Butterfly Valves

1. Product Overview

The H Series Worm Gear Actuator is a specialized device designed for quarter-turn applications, specifically optimized for large-scale butterfly valves in water supply, energy, and heavy industrial systems.

A key feature is the integration of the advanced HGA helical gear unit, which significantly reduces input torque. This optimization enhances operational efficiency and provides superior protection for the drive system.

2. Key Features of the H Series

• Operational Flexibility: The device supports various control methods:

  • Manual: Effortless operation via handwheel, facilitated by a double-reduction gear train.

  • Automated: Easily integrated with electric or pneumatic actuators for remote control (single-reduction drive).

• Premium Materials & Superior Durability: * Worm shafts are manufactured from high-strength alloy steel.

  • Worm wheels are crafted from specialized bronze for high wear resistance.

  • Precision engineering minimizes backlash, preventing valve vibration under high flow pressures.

• Precision Mechanical Stops: All H Series models are equipped with robust mechanical stops, allowing for a travel adjustment of ±5° at both ends to ensure complete and secure valve closure/opening.

• Optimized Design: The H Series consists of three primary sizes, scientifically categorized by output torque to simplify selection based on valve size.

3. Detailed Technical Specifications

4. Typical Applications

The H Series is the premier choice for systems requiring absolute reliability:

• Large-scale Water Treatment & Irrigation: Precise control for massive water mains.

• Thermal & Nuclear Power Plants: Critical flow regulation in cooling and steam systems.

• Marine & Oil & Gas: Flow regulation for shipbuilding and offshore platforms.

• Ultra-large Valves: Ideal for butterfly and ball valves with exceptionally large diameters.