Table of Contents
What is a gas non-return valve?
Non-return valves are safety devices to prevent backfeeding of gases. WITT non-return valves protect plants, pipelines and outlet Non-return valvepoints against reverse gasflow.
Are non return valves required?
Non-return valves are used in systems where it is desirable to make sure fluids flow mostly in one direction, but may not be critical, for example in pumped systems such as heating circuits.
What are the types of non-return valve?
There are different types of non-return valves, such as spring-loaded, swing type, and clapper type valves.
What is the difference between a check valve and a non-return valve?
A non-return valve lets the fluid flow in one direction. When fluid in the line reverses direction, a check valve prevents backflow by allowing flow in one direction. The check valves are usually designed for a particular pressure.
Do non return valves reduce pressure?
We can use a non return valve to increase the water pressure. A non-return valve lets a medium flow in one direction. A non-return valve is used to make sure that a medium flow through a pipe in the right direction.
Why is it a non-return valve?
The check or non-return valve is most commonly used in pumping stations and allows the flow in only one (and always the same) direction thus preventing back flow when the fluid in the line reverses direction.
What is meant by butterfly valve?
Definition of butterfly valve 1 : a valve consisting of two semicircular clappers hinged to a cross rib that permits fluid flow in only one direction. 2 : a damper or valve in a pipe consisting of a disk turning on a bisecting axis.
What are gas non-return valves?
Non-return valves are also known as gas back-flow valves or check valves. WITT gas non-return valves can be installed in any orientation. They are available with various connections, in brass or stainless steel, and can be used for all technical gases such as oxygen, nitrogen, methane, hydrogen and compressed air.
What is an inert gas system?
The basic functionality of the Inert Gas System is to suppress the combustion of the hydrocarbon gases. Inert gases are used for this purpose because they contain less than 8% oxygen which is considerably less than what is required for burning.
What is a non return valve Ultra 40?
Non-return Valve ULTRA 40 Ultra-performance protection against gas return: compact, quiet, ideal for low pressure applications. Opening pressure approx. 5 mbar, up to 16 bar, G / NPT 2. 1/2″ Non-return Valve ULTRA 40, Stainless Steel
What is inert gas System (IGS) on ships?
What Is An Inert Gas System? Inert Gas System (IGS) on a ship refers to a system deployed for the prevention of an explosion in the cargo tanks of a tanker. In this integrated system, while pumping out the liquid inflammable cargo, an inert gas (sometimes by flue gas from ship boilers) is also pumped in.