Slip on pipe flanges actually slip over the pipe.
These pipe flanges are typically machined with an inside diameter slightly larger than the outside diameter of the pipe.

Price:
Price 120 INR / Piece
Minimum Order Quantity : 100 Pieces
Size : Various Sizes Available
Material : Stainless Steel
Grade : Multple Grades Available
Price 1000.0 INR / Piece
Minimum Order Quantity : 100 Pieces
Size : Various Sizes Available
Material : Stainless Steel
Shape : Round
Grade : Multple Grades Available