PVC saddle clamps come in various sizes to accommodate different main pipe diameters and branch pipe requirements. The sizes typically vary based on the outer diameter (OD) of the main pipe they are intended to clamp onto, as well as the size of the outlet connection for the branch pipe. Here are some common PVC saddle clamp sizes and their corresponding main pipe and outlet sizes:

Common Main Pipe Sizes

PVC saddle clamps are designed to fit a range of main pipe sizes. Here are some typical sizes for the main pipe (OD):

• OD50mm
• OD63mm
• OD75mm
• OD90mm
• OD110mm
• OD125mm
• OD160mm
• OD200mm
• OD225mm
• OD250mm
• OD315mm
• OD400mm

Common Outlet (Branch) Sizes

The outlet size on the PVC saddle clamp can vary to match the size of the branch pipe being connected. Here are some typical outlet sizes:

• 1/2 inch 
• 3/4 inch 
• 1 inch 
• 1.5 inches 
• 2 inches 
• 3 inches 

Size Combinations

A PVC saddle clamp’s size is usually indicated by a combination of the main pipe size and the outlet size. But the maximum thread outlet size is 3″, big size haven’t enough strength so bigger than 3″ outlet thread size is not available. and normally the outlet size is smaller than main pipe size.For example you can’t get a 3″ thread outlet size from a pipe which outside diameter is smaller than OD90. The size combinations examples as below for your reference:

• OD50mm main pipe with 1/2 inch outlet
• OD75mm main pipe with 3/4 inch outlet
• OD110mm main pipe with 1 inch outlet
• OD160mm main pipe with 2 inch outlet

Considerations for Selection

When selecting a PVC saddle clamp, consider the following:

1. Main Pipe Diameter: Ensure the saddle clamp fits the OD of the main pipe.
2. Branch Pipe Diameter: Choose an outlet size that matches the branch pipe size.
3. Pressure Rating: Verify that the saddle clamp can withstand the operating pressure of the system.
4. Installation Environment: Ensure the material is suitable for the environmental conditions, including UV exposure if used outdoors.

Example Sizes and Specifications

1. For a 2-inch main pipe:
   • Outlet sizes could include 1/2 inch, 3/4 inch, or 1 inch.
2. For a 4-inch main pipe:
   • Outlet sizes could include 3/4 inch, 1 inch, or 1.5 inches.
3. For a 6-inch main pipe:
   • Outlet sizes could include 1 inch, 1.5 inches, or 2 inches.

Conclusion

PVC saddle clamps come in a variety of sizes to fit different main pipe diameters and branch pipe requirements. It’s important to select the appropriate size based on the specific needs of your piping system to ensure a secure and effective connection. Always refer to the manufacturer‘s specifications for precise dimensions and compatibility.