China Custom 300psi UL FM Approved Signal Gearbox with Grooved End 2.5″ best automatic gearbox

Product Description

300PSI UL FM APPROVED SIGNAL GEARBOX WITH GROOVED END 2.5″

Product Description

Butterfly Valve                                            
Model: GD-381X.GD-381Y

Fire Protection UL/FM Grooved Butterfly valve
Technical Features

  • Conforms: ANSI / AWWA C606 Standard Clear Waterway design
  • Connections: Grooved Ends
  • Sizes: 2″, 2½”, 3″, 4″, 5,  6″, 8″, 10″, 12″ 
  • Approvals: UL, ULC, FM
  • Maximum Working Pressure: 21 BAR / 300 CHINAMFG (Maximum Testing Pressure: 600 PSI) conforms to UL1091 & ULC/ORD-C1091 & FM class 1112 Maximum Working Temperature: -20°C to 80°C
  • Design Standard: API 609
  • Application: Indoor & Outdoor Use
  • Epoxy coated interior and exterior by Electrostatic Spray  conforms to AWWA C550 
  • Seat Disc Resilient CHINAMFG Coated
  • Factory Installed Supervisory Tamper Switch Assembly
  • Top Flange Standard ISO5211 / 1
  • Design and materials are subjected to change without any notice

Product Parameters

Certifications

Company Profile

 

Packaging & Shipping

 

Media: Water
Driving Mode: Worm Gear
Connection Form: Clamp
Structure: Centre Sealing
Seal Form: Force Sealed
Valve Stem: Normal
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Customization:
Available

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Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

How to Calculate the Input and Output Speeds of a Worm Gearbox?

Calculating the input and output speeds of a worm gearbox involves understanding the gear ratio and the principles of gear reduction. Here’s how you can calculate these speeds:

  • Input Speed: The input speed (N1) is the speed of the driving gear, which is the worm gear in this case. It is usually provided by the manufacturer or can be measured directly.
  • Output Speed: The output speed (N2) is the speed of the driven gear, which is the worm wheel. To calculate the output speed, use the formula:

    N2 = N1 / (Z1 * i)

Where:
N2 = Output speed (rpm)
N1 = Input speed (rpm)
Z1 = Number of teeth on the worm gear
i = Gear ratio (ratio of the number of teeth on the worm gear to the number of threads on the worm)

It’s important to note that worm gearboxes are designed for gear reduction, which means that the output speed is lower than the input speed. Additionally, the efficiency of the gearbox, friction, and other factors can affect the actual output speed. Calculating the input and output speeds is crucial for understanding the performance and capabilities of the worm gearbox in a specific application.

worm gearbox

How to Select the Right Worm Gearbox for Your Application

Selecting the right worm gearbox for your application involves careful consideration of various factors:

  • Load Requirements: Determine the torque and load requirements of your application to ensure the selected gearbox can handle the load without compromising performance.
  • Speed Reduction: Calculate the required gear reduction ratio to achieve the desired output speed. Worm gearboxes are known for high reduction ratios.
  • Efficiency: Consider the gearbox’s efficiency, as worm gearboxes typically have lower efficiency due to the sliding action. Evaluate whether the efficiency meets your application’s needs.
  • Space Constraints: Assess the available space for the gearbox. Worm gearboxes have a compact design, making them suitable for applications with limited space.
  • Mounting Options: Determine the mounting orientation and configuration that best suits your application.
  • Operating Environment: Consider factors such as temperature, humidity, and exposure to contaminants. Choose a gearbox with appropriate seals and materials to withstand the environment.
  • Backlash: Evaluate the acceptable level of backlash in your application. Worm gearboxes may exhibit more backlash compared to other gear types.
  • Self-Locking: If self-locking capability is required, confirm that the selected gearbox can prevent reverse motion without the need for external braking mechanisms.
  • Maintenance: Consider the maintenance requirements of the gearbox. Some worm gearboxes require periodic lubrication and maintenance to ensure proper functioning.
  • Cost: Balance the features and performance of the gearbox with the overall cost to ensure it aligns with your budget.

Consult with gearbox manufacturers or experts to get recommendations tailored to your specific application. Testing and simulations can also help validate the suitability of a particular gearbox for your needs.

China Custom 300psi UL FM Approved Signal Gearbox with Grooved End 2.5China Custom 300psi UL FM Approved Signal Gearbox with Grooved End 2.5
editor by CX 2023-09-14