mariner

1. Certain fittings are usually referred to as boiler mountings. 2. Safety valves are mounted in pairs by them to protect the boiler against overpressure. 3. A provision for injecting water treatment chemicals may be made by us. 4. Water level gauges or "gauge glasses" are fitted at opposite ends of the boiler. 5. Audible warning of low water level conditions is provided by using low level alarm. 6. The glass tube is connected to the boiler shell by cocks and pipes. 7. The assembly is made up of front and back metal plates with the glass plates and a centre metal plate between, functioning as a "sandwich". 8. All round tightening of the bolts must be ensured by us.

Certain - definite, sure, reliable necessary - essential, required, needed operation - functioning, performance, activity mountings - fixtures, fittings, supports to protect - safeguard, shield, defend to fit - install, fix, attach auxiliary - supplementary, additional, secondary injecting - infusing, introducing, administering to enable - allow, facilitate, empower to position - place, locate, arrange to connect - link, join, attach to supply - provide, furnish, give device - gadget, tool, apparatus rate - speed, pace, frequency air vent - air duct, ventilation, air passage to insert - place, insert, embed