The design of cam and groove coupling is such that an increase in internal pressure will increase the clamping force on the cam (handle). Handles will not open due to pressure alone. However, there are applications that for hazardous and safety reasons, a secondary lock may be desirable. This is often the case in the chemical industry where dangerous fluids are often present. In many cases a lock is required where a separate and deliberate movement must be performed before the coupling handles can be opened and the coupling haves separated.

In many locations, pins or other removable mechanical devices are used to provide a lock. These are often difficult to use if the operator is wearing protective equipment and the components are small. Ritepro's secondary locks are an integral part of the coupling and so they do not need to be removed. They are easy to operate, even while wearing gloves.

These locks are available to fit on all coupling styles, B, C, D, and DC as well as all materials, aluminium, brass, stainless steel etc.. All the locks are stainless steel for corrosion resistance.