propane safety valve factory

One thing you should pay attention to is the propane tank’s safety relief valve. All propane tanks, including the cylinders you use for your BBQ grill, are required by law to have pressure relief devices to allow for the release of excess pressure in the tank.

A spring keeps the safety relief valve closed as long as the pressure inside the tank is at a safe level. If the pressure in the tank reaches the same amount of pressure of the spring, the safety relief valve is opened. If that happens, you’ll hear a hissing sound coming from the tank. In instances where the pressure in the tank is much higher than that of the spring, the valve will fully open. You’ll hear pop if that occurs.

Your propane tank needs to have room for the propane inside it to expand. That is why your propane tank is filled to 80% of its capacity. The 20% of the tank that is empty space allows the propane to safely expand.

That expansion is why propane tanks are white or beige. Light colors reflect heat to minimize expansion. Dark colors retain heat and can cause the propane inside your tank to expand to dangerous levels. So, even if your propane tank doesn’t go with the color of your siding, leave it alone.

The safety relief valve is one of the most important and vital valves on any LP Gas container. All propane tanks and cylinders are required by law to be fitted with pressure relief devices designed to relieve excess pressure. The function of a safety relief valve is to keep a propane tank from rupturing in the unlikely event of excessive pressure buildup. Propane tank relief valves are also known as pop off valves, pressure venting valves or relief valves.

Relief valves are held in the closed position by the force of a powerful spring. As long as the pressure inside the tank is less than that of the spring, the valve will remain closed. If tank pressure rises to that of the spring, the valve will open resulting in a hissing sound outside the tank. If the pressure in the tank rises significantly higher than that of the spring, the valve will fully open. When the valve fully opens, it initially makes a loud pop followed by a blast of released propane gas. Once the pressure is released and the tank pressure falls below that of the spring, the valve closes.

Most propane tanks in residential and commercial service have internal safety relief valves. The reason for an internal valve as opposed to an external pressure relief valve is it presents less of an obstruction when moving the tank. Internal relief valves are generally placed near the end of the propane tank on above ground containers.

Found primarily on older tanks, external relief valves operate in the same manner as an internal relief valve with the spring mechanism being outside the propane tank itself. Relief valves on multvalves are always fitted with external safety relief valves. Older tanks with an external relief valve installed on the container are generally replaced with internal pressure relief valves, provided they are connected to a dedicated tank opening specifically designed for the placement of the relief valve.

Because the safety relief valve performs such a vital role in the protection of the propane tank, it should be maintained and repaired by licensed propane professionals only. Do not ever look into a relief valve or stand over it.

A protective cover should be placed over the relief valve to ensure proper operation. If the valve has debris in the upper mechanism of the relief valve and it opens, the debris may cause the valve to remain open resulting in a potentially dangerous situation and/or excessive loss of propane. A simple protective relief valve cover can be made from a plastic bag fastened around the external portion of the valve with a rubber band.

If a you encounter a relief valve that seems to be "hissing" (opened to relieve pressure) do not tap it or mess with it. If the tank has been recently filled in hot weather and the face gauge reads over 80 or 85%, spray some water from a hose on the tank. This may cool it down and reduce the expansion of the liquid in the tank. Call your propane company immediately and inform them of the situation.

Pictured here is a relief valve that was apparently leaking. Instead of calling the propane company to replace the valve, the customer decided to fix the problem himself. Using a soldering iron, he soldered the leak until it stopped leaking. In the process of "repairing" the leak, the customer completely sealed the relief valve in a closed position placing himself and his family in a very dangerous situation.

In this type of situation, a relief valve that is sealed shut will not allow the tank to vent excess pressure if it is overfilled or the pressure inside the tank exceeds the working pressure of the container. In a case where the tank is unable to vent to the outside, the tank is subject to rupturing causing more harm and damage than money saved by trying to fix it yourself. Let the propane company or LPG professional handle any problems with thesafety relief valve.

Houses or buildings utilizing gas energy require a gas piping system to power heaters, ovens, and other heating appliances. One of the most important elements of a gas piping system is the propane service valve, which controls propane gas flow in and out of a building. While there may be many other valves within gas plumbing, this valve functions as an on/off switch and serves as the main point of control for cutting off or allowing for the flow of gas into a piping system.

Propane valves are simply used to turn gas on or off. Similar to that of a water faucet, propane valves consist of a handwheel that controls propane gas flow when turned. When the wheel is turned, a stem and seat mechanism located within the valve opens or closes to prevent or allow gas flow from the tank.

Using propane gas requires an LP gas regulator, which decreases the amount of pressure released into the gas line, keeping it at an acceptable and safe level while still meeting the needs of the application.

There are multiple different valves in any propane system, each of which has a particular job. At IPS Equipment, we provide some of the most common types of valves for propane systems, including:

A pressure or safety relief valve is a safety mechanism that every propane system needs. It allows excess pressure in the tank to be slowly and safely released. Without this valve, pressure can build up and cause the tank to crack or rupture.

The relief valve has a pressurized spring. If the pressure levels within the tank grow too high, the spring forces the valve open just enough to return the pressure levels to acceptable levels. Once the pressure decreases, the spring relaxes, and the valve automatically closes.

This valve is where gas delivery personnel add new gas to a propane tank. Propane delivery trucks have hoses that can be attached to the filler valve so propane can be pumped into the tank. This valve is also pressure-activated, and it opens automatically in response to the pressure in the hose.

Filler valves have gaskets that operators can push the hose end against to avoid propane leaks. They also only allow for unidirectional fluid movement, meaning that once the tank is full, there is no risk of propane escaping when the hose is withdrawn.

This shut-off valve prevents gas from entering the building and any attached appliances. You can use this central point of control like an on/off switch to completely halt the path of gas in the system.

This valve is also called a vapor return valve or vapor eliminator valve. It ensures that propane is delivered at the proper pressure levels from the propane delivery truck to a personal tank and returns any excess propane back to the delivery truck. This is similar to a safety valve, except the vapor equalizing valve ensures the propane is delivered at proper pressures for optimum use, not safety. This is especially crucial during hot weather or in warm environments, as that can increase the pressure.

This specialized valve is meant for use by propane companies only. It allows operators with the proper tools to drain liquid propane from the tank. Propane tanks must be drained to <5% capacity levels before they can legally be moved.

IPS Equipment specializes in supplying propane marketers with reliable valves, fittings, regulators, and more for propane systems. Contact us today to learn more about our comprehensive products or services, or browse through our catalog to start your order.

The safety relief valve is one of the most important and vital valves on any LP Gas container. All propane tanks and cylinders are required by law to be fitted with pressure relief devices designed to relieve excess pressure. The function of a safety relief valve is to keep a propane tank from rupturing in the unlikely event of excessive pressure buildup. Propane tank relief valves are also known as pop off valves, pressure venting valves or relief valves.

Pressure relief valves are critical to the safe operation of propane storage tanks & bulk plants. As such, they are closely regulated in most states and subject to both National Board Inspection Code (NBIC) and NFPA requirements, which call for testing and replacement at regular intervals.

In the state of Virginia, regulations for pressure relief valve testing and certification call for routine inspections to verify an appropriate device is installed on all tanks in addition to rigorous testing to confirm their proper working condition in accordance with Virginia Department of Labor & Industry (DOLI) and NFPA 58 recommendations, including:

Most conventional tank valves are not field-repairable. But with RegO, you’re ready to go when you roll up. Our innovations in propane tank valves include our patented RegO MultiBonnet®, the industry’s only field-repairable tank valves that provides users easy access to repair the valve stem packing without disruption of service and without the added cost of evacuating the tank. Jobs that used to take hours now take minutes.

RegO MultiValves contain UL-listed, factory installed and tested Presto-Tap fitting that provides a quick and easy, cost-effective method of performing a system leak test that saves you time and money while reducing emissions by up to 90%

Combines low emission double back check filler valve, vapor equalizing valve, pressure relief valve, MultiBonnet service valve, fixed liquid level gauge, “junior” sized float gauge flange opening and factory installed and tested Presto-Tap.

These compact MultiValves are especially suited for vapor withdrawal of ASME containers where compact groupings of components are necessary. Separate filler valves andpressure relief valves are required.

Designed for vapor withdrawal service on ASME and DOT containers or in fuel line applications. Since none of these valves have an integral pressure relief valve, they may only be used as an accessory valve on containers that have an independent pressure relief valve sufficient for that container’s capacity.

These MultiValves permit vapor withdrawal from ASME containers up to 50 sq. ft. surface area and DOT containers up to 420lb propane capacity. They allow on-site cylinder filling without interrupting gas service.

Combines high capacity double back check filler valve, MultiBonnet service valve, fixed liquid level gauge, pressure relief valve and factory installed and tested Presto-Tap.

The RegO Presto-Tap Universal Service Tech Kit has all the diagnostic tools needed to perform system leak testing at any point of the propane system all in one easy-to-carry bag.

This forklift propane safety valve is designed to meet the standards established by the OEM – providing superior performance during service or component wear.

A certified pressure relief valve testing contractor must perform all inspections. That’s where Foster Fuels comes in. Our inspectors can advise when testing is necessary and when a replacement would be a more cost-effective option. We also offer comprehensive preventative maintenance programs that can extend the life of your pressure relief valves and related safety equipment, saving you money over the long term with services such as:

Reminding you valves over 10 years old must be tested or replaced prior to the following scheduled inspection, which is two years from the current inspection.

Virginia has its own set of requirements for pressure relief valve testing and certification. These are primarily based on NFPA 58 and the Virginia Department of Labor and Industry. State requirements establish a propane pressure relief valve testing frequency of once every 10 years for most equipment. The state code also sets a compliance schedule of two years from the initial inspection date. For more information, contact Foster Fuels directly.

State and NBIC requirements present several challenges for businesses that rely on propane in their facilities. Organizations with multiple tanks may find the time and money required for pressure relief valve testing—including downtime and flaring of vapor, if necessary—to be overly burdensome. The limited time allotted to ensure all tanks are inspected and tested is an additional difficulty.

Outside the contiguous United States, a 5% discount will be given on orders shipping to Alaska, Hawaii, US Virgin Islands (St. Croix, St. Thomas, St. John, and the Water Island), Puerto Rico, and Guam. All other orders are shipped FOB from a Northern Safety & Industrial warehouse, unless otherwise specified

Superior"s 7074 Series of 303 SS Diaphragm Packless Valves are designed for a variety of high-purity and high-pressure applications, including analytical & instrumentation gases, EPA protocol gases, environmental monitoring and medical applications using pharmaceutical gases.

The 7774 Series of 316L SS Diaphragm Packless Valves are used in corrosive gas applications, cylinder phosphine gas, atmospheric and purging gases, dopant gases and reactant gases.View Product Page

Lintgen, Luxembourg 10 August 2021 – Rotarex SRG a business unit of Rotarex SA announced that the entire Cryotec range including the Refrigerant Valves and Components is taken over and managed by Rotarex SRG in Gladenbach, Germany.

SRG Schulz + Rackow Gastechnik has a long history and experience of more than 85 years in the design and manufacturing of valves, regulators and equipment for various applications, such as Cylinder and Bulk Tank Storage, Automotive solutions, Cont...

If you smell gas (an odor similar to rotten eggs or sulfur) or think you may have a gas leak, exit the premises immediately and contact Arrow Propane at

A propane tank is full when the gauge reads 80% (the empty 20% allows for expansion of the propane vapor). If the meter reads below 20%, contact us immediately atfor a new propane tank delivery.

If you think your portable propane tank or grill tank is leaking, and it is safe to turn off the tank valve, turn it to the right (clockwise). If you cannot turn off the valve, leave the area and dial 911 or call your local fire department.

Storing propane tanks outdoors is safe, but choosing a spot away from living areas is best. You must always hold propane tanks in an upright position on stable surfaces. Ensure that the gas valve is in the off position when not using your tank, and never store your propane tank inside your home or vehicle.

Propane is not affected by freezing temperatures. The best policy is to keep your tanks in locations away from direct sunlight for extended periods. Do not expose the tank to temperatures at or above 120°F (49°C).

You can still store propane tanks outdoors on stable surfaces when the weather reaches high temperatures. Essential rules for propane storage include:

If you are going to be away from your home for an extended time, consider shutting off all of your propane supply valves, including the main supply valve on your propane tank and the gas supply valves on each appliance.

When you return, it is critical that you call us at Arrow Propane to conduct a leak check before turning on your propane supply again. After we confirm no leaks, we can also re-light your pilot lights if you need help.

In extreme, dry heat conditions, keep the 10-foot radius around your propane tank and grill clear of any dry materials that could ignite. In flood or stormy conditions with very high winds, propane tanks can shift, damaging gas lines and the tanks themselves.

A large propane tank can float away, hitting objects in its path. Water and debris can find their way inside regulators and controls, causing potential safety issues.

If you question the safety of the current conditions, leave the area immediately, alert Arrow Propane, and have your property inspected by a trained professional before re-entering.