No-Ledge Line Coupling

Conveying Line Components

No-Ledge Line Coupling

Application

The Schenck Process No-Ledge coupling is designed for food and light industry conveying of fragile materials or materials requiring a high degree of sanitation. It can also be used for systems where color-changeouts are common; or for hazardous or inert materials where piping connections must maintain a positive seal.

Equipment

Unlike a compression coupling, which can have frequent pipe misalignment during installation, the Schenck Process No-Ledge coupling delivers a machined tolerance joint. This ensures proper alignment and creates a ledge-free interior environment on connection points. As a result, friction and crevices which catch product and cause fines are greatly reduced.

O-rings located in the product stream can eventually abrade away and expose a sharp metal edge, increasing the risk of contamination. The No-Ledge coupling offers a recessed O-ring gasket that delivers a smooth transition through a positive sealing metal-to-metal joint. This eliminates gasket contact with the product stream – a critical improvement in sanitary piping system design.

Operating principle

Available with a single T-handle or nut, or backing flanges that tightens the clamp around the male and female flanges. The clamp presses the face of the male and female flanges together by way of a bevel on the edge of each flange compressing the O-ring creating an air tight seal.

Clamp Recessed O-ring gasket

When inspection or cleaning is required, simply loosen the single T-handle or nut and pull the piping apart. The clamp does not need to be removed, due to a slotted quick release latch with a hinge that releases the T-bolt quick access.

Male flange

Product stream Female flange