IS:1239 Class C Carbon Steel ERW Tube 100NB 4.5MM Painting

A cam lock is a compact, cylindrical locking device commonly used to secure cabinets, drawers, lockers, and enclosures. It operates through a rotating metal arm, known as a cam, which turns when the correct key is inserted. Depending on the design, the cam typically rotates 90° or 180° to lock or unlock the door, panel, or compartment.

A tubular cam lock features a circular key and a cylindrical pin arrangement. Compared with traditional flat-key cam locks, tubular locks provide greater resistance to picking and tampering. They are frequently installed in vending machines, lockers, gaming equipment, cash boxes, and other applications requiring higher levels of security.

Valve stem packing is a critical sealing component installed around the valve stem inside the bonnet area. Its primary function is to prevent internal media (gas or liquid) from leaking to the external environment while still allowing smooth linear or rotary movement of the stem.

In industrial applications such as oil & gas, petrochemical, and power generation, packing acts as a dynamic seal that must withstand continuous friction, pressure fluctuations, and thermal cycling. Unlike static seals, packing is constantly in contact with a moving component, making material selection and compression design extremely important.

High-performance packing systems are often designed to meet low-emission requirements such as API 622 and ISO 15848-1, ensuring fugitive emissions remain within strict environmental limits.