check valves in firefighting systems

What is a check valve? Check valves are a type of valve that is designed to prevent the flow of fluid in one direction. They are commonly used in plumbing, heating and cooling, and fire protection systems to prevent backflow and maintain system integrity. What are the types of check valves? There are several different […]

How does a butterfly valve work?

Butterfly valves provide lightweight and low-cost control over water flow in fire sprinkler and standpipe systems A butterfly valve isolates or regulates the flow of fluid through piping systems. While they can be used with liquids, gases, and even semi-solids, butterfly valves for fire protection serve as control valves that turn on or shut off […]

Flexible Coupling vs Rigid Coupling

Flexible couplings and rigid couplings are two types of mechanical devices used to connect two shafts together in a rotating system. They serve different purposes and have distinct characteristics. Let's compare them: Flexibility: Flexible Coupling: As the name suggests, flexible couplings are designed to accommodate misalignment between shafts. They can tolerate angular, parallel, and axial […]

Ductile iron pipe fittings and couplings

Brief introduction of our company Leyon Piping System Co., Ltd. Leyon is specialized in pipe fitting and other associated products production for more than 27 years, which including malleable iron pipe fittings, grooved ductile iron pipe fittings, stainless steel pipe fittings, valves etc. All our malleable iron pipe fittings & grooved fittings have passed UL/FM […]