The Energy KnowledgeBase by Enerdynamics is the always up-to-date, indispensable energy industry resource of concepts and terminologies essential to all energy industry professionals.

Gate valves are used throughout the gas distribution system. They are used to control flow on distribution feeders as well as inlets to regulator stations and customer service pipes.

We also recommend that a leak detector shut off device is installed with any water filter and / or reverse osmosis system which is under pressure [per image 3].

According to regulatory standards any water filter system under constant water pressure [regardless of the brand or supplier] is required to be fitted with an AS3497 approved pressure reducing valve and back-flow prevention device.

Spring-operated pressure relief valves are often used at regulator stations to ensure that downstream pressures do not exceed maximum allowable operating pressures in the event of regulator failure.

This item carries a full 12 month warranty on all parts supplied in the original order, this subject to our standard terms and conditions listed in our operating manual.

Watermark certified and required for AS3497 compliant fitment + lengthens the life of your water filter system by reducing pressure on the housings. Installations instructions for the PRV can be downloaded here and for the automatic leak detection and shut off device fitment can be downloaded here.

Valves perform various functions throughout the gas delivery system. They block flow by not allowing gas to pass beyond a certain point. Valves isolate pressure by separating two sections of the system that operate at different pressures. They direct flow by determining what path is open for gas to flow. Valves also manage pressure by partially blocking a specific path resulting in a downstream drop in pressure. Different types of valves are used for different functions and are differentiated by how they control flow.

Like ball valves, plug valves are used throughout the gas delivery system for blocking and directing flow on the transmission system and as customer service valves. Due to maintenance and operation factors, many older plug valves in gas systems are being replaced with ball valves.

Gate valve: A gate valve contains a gate that is lowered into the pipe to stop flow or raised out of the pipe to allow flow to pass. Gate valves require several turns of the handle to fully open or close the valve.

Spring valve: In a spring valve the opening is controlled by a spring. There are two commonly used types: pressure relief and excess flow.

Ball valves are used throughout the gas delivery system. They are used for blocking or directing flow in the transmission system and at the customer meter to allow service to be turned on and off.

Ball valve: A ball valve contains a ball with a hole in the center. If the hole is aligned with the pipe, gas will flow through the valve. But if the valve is turned one quarter of a turn, the ball will block flow through the pipe.

Plug valve: A plug valve is similar to a ball valve in that it has a hole in the center that can be aligned with the pipe to allow gas flow, or it can be turned one quarter of a turn to block flow. The difference from a ball valve is that a plug valve has a cylindrical or conical shape.