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  • Changzhou Edaweld Trading Company Limited

  •  [Jiangsu,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:81% - 90%
  • Certs:CE
  • Description:Voltage Regulator,High Pressure Regulator,Gas Regulator
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Changzhou Edaweld Trading Company Limited

Voltage Regulator,High Pressure Regulator,Gas Regulator

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Product categories of Regulator, we are specialized manufacturers from China, Voltage Regulator, High Pressure Regulator suppliers/factory, wholesale high-quality products of Gas Regulator R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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1/8 Inch Gas Pressure Gauge

Model No. : 000

Gas Pressure Gauge Our pressure gauges for gauge absolute and differential pressure have been proven millions of times over For the optimal solution for the widest range of applications there is a choice of measuring systems in Bourdon tube...

Expert Manufacturer of Voltage Regulator
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Flow Meter Gas Regulator

Model No. : ArR-711 ArR-712 ArR-713 ArR-714

Flow Meter Gas Regulator Most specialty gases are supplied in cylinders compressed to high pressures Pressure regulators reduce the pressure within the cylinders to a level that can be safely used in your operating system Proper regulator selection...

China Manufacturer of High Pressure Regulator
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Light Brass Oxygen Regulator

Model No. : OR-502

Light Brass Oxygen Regulator Gas pressure regulators are used to reduce the pressure of gas supplied from a high pressure cylinder of gas to a workable level that can be safely used for operating equipment and instruments There are two basic types...

High Quality Gas Regulator China Supplier
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Two Stage Brass Gas Regulator

Model No. : OR-303 AR-303

Two Stage Brass Gas Regulator Single stage pressure regulators reduce the cylinder pressure to the delivery or outlet pressure in one step Two stage pressure regulators reduce the cylinder pressure to a working level in two steps Since the...

Professional Manufacturer of Voltage Regulator
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Miniature Brass Gas Regulator

Model No. : OR-302 AR-302 LR-302

Miniature Brass Gas Regulator Single stage and two stage gas regulators have different droop characteristics and respond differently to changing supply pressure The single stage regulator shows little droop with varying flow rates but a relatively...

Expert Manufacturer of High Pressure Regulator
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Russian Brass Gas Regulator

Model No. : OR-207 AR-207

Russian Brass Gas Regulator The selection of the proper gas regulator involves many factors including body and internal materials of construction For general use regulators of brass construction with elastomeric diaphragms will give good service in...

Gas Regulator Export
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German Brass Gas Regulator

Model No. : OR-205 AR-205 LR-205 CR-205

German Brass Gas Regulator The gas regulator must be constructed using materials suited to the application Industrial general purpose regulators are often constructed with either Buna N or Neoprene diaphragms Regulators with Buna N or Neoprene...

Competitive Voltage Regulator China Supplier
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Swiss GLOOR Gas Regulator

Model No. : OR-204 AR-204 LR-204

Swiss GLOOR Gas Regulator The ideal construction for high purity gas service is a gas regulator that has a stainless steel diaphragm Such regulators are noncontaminating and assure satisfactory use for all applications of noncorrosive and mildly...

High Quality High Pressure Regulator China Factory
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Cheap Brass Gas Regulator

Model No. : OR-128 AR-128

Cheap Brass Gas Regulator A gas regulator equipped with a stainless steel diaphragm has several advantages over the elastomeric type It does not outgas organic materials and it also prevents the diffusion of atmospheric oxygen into the carrier gas...

China Supplier of Gas Regulator
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New Type Gas Regulator

Model No. : OR-127 AR-127

New Type Gas Regulator The intended gas service for which the gas regulator is used must be compatible with the materials of construction that come in contact with the gas stream The wetted materials must be compatible with the gas composition...

China Factory of Voltage Regulator
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Brass Brazilian Gas Regulator

Model No. : OR-123 AR-123

Brass Brazilian Gas Regulator Generally single and two stage gas regulators are equipped with two gauges a cylinder or inlet pressure gauge and a delivery or outlet pressure gauge The cylinder pressure gauge has the higher pressure range and is...

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High Quality Brass Gas Regulator

Model No. : OR-120 AR-120

High Quality Brass Gas Regulator Gas regulators are useful for gas chromatography applications where a constant working pressure is important over a wide range of inlet pressures and flow rates The easy to read gauges have large diaphragms to ensure...

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Cheap Price Brass Gas Regulator

Model No. : OR-119 AR-119

Cheap Price Brass Gas Regulator Gas pressure regulator maintenance is an important part of maximizing your system s performance and extending the service life of system components Adherence to a maintenance schedule should minimize downtime due to...

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Asian Brass Gas Regulator

Model No. : OR-113 AR-113

Asian Brass Gas Regulator Gas pressure regulators are widely used in both commercial and residential applications to control the operational pressure of the gas One common problem in these systems is the tendency for the regulating apparatus to...

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Aluminium Alloy Medium Size Gas Regulator

Model No. : OR-109 AR-109 LR-109

Aluminium Alloy Medium Size Gas Regulator All gas regulators should be removed from service periodically and returned to the manufacturer for inspection overhaul as appropriate Once the life expectancy of a gas regulator has been exceeded it should...

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Heavy Duty Brass American Gas Regulator

Model No. : OR-107 AR-107

Heavy Duty Brass American Gas Regulator Gas regulators from EDAWELD include a broad range of single and multi stage regulators to suit most fuel gas welding cutting and heating processes and compressed gas applications Buy your gas regulators online...

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Brass American Connector Gas Regulator

Model No. : OR-105 AR-105

Brass American Connector Gas Regulator Specialty gas regulators are used to reduce high pressure specialty gas from a cylinder or process line to a lower pressure suitable for use Specialty gas regulators are specially designed to provide diffusion...

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Medium Size Aluminum American Gas Regulator

Model No. : OR-104 AR-104

Medium Size Aluminum American Gas Regulator Specialty gas regulators can also be specially treated to handle various applications such as low level sulfur analysis or working with harsh gases and chemicals Please contact us if you require us to...

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Medium Size Brass American Gas Regulator

Model No. : OR-102 AR-102

Medium Size Brass American Gas Regulator The prime function of the regulator is to put exactly as much gas into the piping system as the load device takes out This prevents damage to equipment and tools Without such devices pressure could become too...

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Japan YAMATO Oxygen Gas Pressure Regulator

Model No. : OR-112/AR-112/CR-112

Japan YAMATO Oxygen Gas Pressure Regulator A gas pressure regulator consists of three elements Restricting element A valve that can provide a variable restriction to the flow Loading element A part that can apply the needed force to the restricting...

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China Regulator Suppliers

You must be able to reduce the high-pressure gas in a cylinder to a working pressure before you can use it. This pressure reduction is done by a Regulator or reducing valve. The one basic job of all regulators is to take the high-pressure gas from the cylinder and reduce it to a level that can be safely used. Not only do they control the pressure but they also control the flow (volume of gas per hour).

Regulators come in all sizes and types. Some are designed for high-pressure oxygen cylinders (2,200 psig), while others are designed for low-pressure gases, such as natural gas (5 psig). Some gases like nitrous oxide or carbon dioxide freeze when their pressure is reduced so they require electrically heated regulators.

Most regulators have two gauges: one indicates the cylinder pressure when the valve is opened and the other indicates the pressure of the gas coming out of the regulator. You must open the regulator before you get a reading on the second gauge. This is the delivery pres-sure of the gas, and you must set the pressure that you need for your particular job.

The pressures that you read on regulator gauges is called gauge pressure. If you are using pounds per square inch, it should be written as psig (this acronym means pounds per square inch gauge). When the gauge on a cylinder reads zero, this does not mean that the cylinder is empty. In actuality, the cylinder is still full of gas, but the pressure is equal to the surrounding atmospheric pressure. Remember: no gas cylinder is empty unless it has been pumped out by a vacuum pump.

There are two types of regulators that control the flow of gas from a cylinder. These are either single-stage or double-stage regulators.

Single-Stage Regulators

Regulators are used on both high- and low-pressure systems. Figure 4-8 shows two SINGLE-STAGE regu-lators: one for acetylene and one for oxygen. The regulator mechanism consists of a nozzle through which the gases pass, a valve seat to close off the nozzle, a diaphragm, and balancing springs. These mechanisms are all enclosed in a suitable housing. Fuel-gas regulators and oxygen regulators are basically the same design. The difference being those designed for fuel gases are not made to withstand the high pressures that oxygen regulators are subjected to.

Figure 4-8.-Single-stage regulators.

In the oxygen regulator, the oxygen enters through the high-pressure inlet connection and passes through a glass wool falter that removes dust and dirt. Turning the adjusting screw IN (clockwise) allows the oxygen to pass from the high-pressure chamber to the low-pressure chamber of the regulator, through the regulator outlet, and through the hose to the torch. Turning the adjusting screw further clockwise increases the working pressure; turning it counterclockwise decreases the working pressure.

The high-Pressure Gauge on an oxygen regulator is graduated from 0 to 3,000 psig and from 0 to 220 in cubic feet. This allows readings of the gauge to deter-mine cylinder pressure and cubic content. Gauges are calibrated to read correctly at 70°F. The working pres-sure gauge may be graduated in [psig" from 0 to 150, 0 to 200, or from 0 to 400, depending upon the type of regulator used. For example, on regulators designed for heavy cutting, the working pressure gauge is graduated from 0 to 400.

The major disadvantage of single-stage regulators is that the working gas pressure you set will decrease as the cylinder pressure decreases; therefore, you must constantly monitor and reset the regulator if you require a fixed pressure and flow rate. Keeping the gas pressure and flow rate constant is too much to expect from a regulator that has to reduce the pressure of a full cylinder from 2,200 psig to 5 psig. This is where double-stage regulators solve the problem.

Double-Stage Regulators

The double-stage regulator is similar in principle to the one-stage regulator. The main difference being that the total pressure drop takes place in two stages instead of one. In the high-pressure stage, the cylinder pressure is reduced to an intermediate pressure that was predetermined by the manufacturer. In the low-pressure stage, the pressure is again reduced from the intermediate pressure to the working pressure you have chosen. A typical double-stage regulator is shown in figure 4-9.

Figure 4-9.-Double-stage regulator.

Problems and Safety

Regulators are precise and complicated pieces of equipment. Carelessness can do more to ruin a regulator than any other gas-using equipment. One can easily damage a regulator by simply forgetting to wipe clean the cylinder, regulator, or hose connections. When you open a high-pressure cylinder, the gas can rush into the regulator at the speed of sound. If there is any dirt present in the connections, it will be blasted into the precision-fitted valve seats, causing them to leak This results in a condition that is known as creep. Creep occurs when you shut of the regulator but not the cylinder and gas pressure is still being delivered to the low-pressure side.

Regulators are built with a minimum of two relief devices that protect you and the equipment in the case of regulator creep or high-pressure gas being released into the regulator all at once. All regulator gauges have blowout backs that release the pressure from the back of the gauge before the gauge glass explodes. Nowadays, most manufacturers use shatterproof plastic instead of glass.

The regulator body is also protected by safety devices. Blowout disks or spring-loaded relief valves are the two most common types of devices used. When a blowout disk ruptures, it sounds like a cannon. Spring-loaded relief valves usually make howling or shrieking like noises. In either case, your first action, after you recover from your initial fright, should be to turn off the cylinder valve. Remove the regulator and tag it for repair or disposal.

When opening a gas cylinder, you should just [crack" the valve a little. This should be done before attaching the regulator and every time thereafter. By opening the cylinder before connecting the regulator, you blow out any dirt or other foreign material that might be in the cylinder nozzle. Also, there is the possibility of a regulator exploding if the cylinder valve is opened rapidly.


Oil or other petroleum products must never be used around oxygen regulators because these products will either cause a regulator explosion or fire
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