Boiler Maker
10
Flanges

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal. The key types of flanges are the welding neck, long welding neck, slip-on, socket weld, lap joint, threaded and blind flanges. In addition to these standard flanges, some special ones exist, called Weld flange / Nipo flange and Elbo flange, swivel flange, expander/reducer flange, and orifice flanges.


11
Corded & Cordless Drill Machine

Drills and rotary hammers are both excellent for drilling masonry. Rotary hammers are more powerful, though, and have a “hammer-only” mode with no rotation. They usually have an SDS chuck, which is better for hammering. A hammer drill has two discs that have ridges resembling the ridges on a poker chip, A rotary hammer creates its pounding action with a piston driven by a crankshaft. Another big advantage is that most rotary hammers have three settings: drill mode, hammer drill or just hammer, so they can act as a mini jackhammer.

                                                   


      

12
Bellows

Bellows are widely used in industrial and mechanical applications such as rod boots, machinery way covers, lift covers and rail covers to protect rods, bearings and seals from dirt. Rubber bellows (also known as expansion joints) are used to protect moving mechanical parts from dust and humidity. The concertinaed sides allow the rubber bellow to expand and contract whilst maintainng a permanent seal