Gas-fired water heater is not required to open the valve?

Usually at home, which is the peak of the house with hot water to keep the water heater power-on state, Gas Valves open state, as long as the barrier water heater, it will not start, and use it every time, you only need to open the hot water tap on the line, the water heater It starts automatically. No one at home, it is recommended to turn off the power to the water heater, there is no electricity, the water heater inside the Gas Control Valve is not open, there is no danger of leakage. Nobody at home for a long time, such as travel, long holiday, close the valve, turn off the power, do not unplug the plug, you can let go of the remaining water inside the water heater, specifically refer to the manual operation, there must be this, this is the case, the plug has You can unplug

Cold water heater valve how to use

Cold Water Heater Gas Valves is a combination of several valves: cold water inlet angle valve, the hot water outlet angle valve, as well as the user to adjust the water temperature with mixing valve (which can move both ends of the left is cold and right is hot water, opening angle that is doped with different amounts of cold water into a different, and to regulate the temperature effect).
In general, users only need to adjust the mixing waterGas Control Valve to adjust the water temperature; holding the normally open to other valves, usually without adjustment to rotate.

How to choose the water heater valve

How to choose the water heater valve
 1. Water Heater Gas Valves, the valve should be visually, the surface should be no trachoma; plated surface should be uniform gloss shall watch for peeling, cracking, burning, exposed bottom, peeling, dark spots and obvious defects such as pitting; spraying surface tissue should fine, smooth and uniform, without sagging, open at the end and other defects. The defect will directly affect the life of the valve.
2.Gas Valves pipe thread is connected with the pipeline, in the purchase of visual thread whether the surface dents, broken teeth and other obvious defects, with particular attention to the pipe thread and connector screwed effective length will affect the seal of reliable sex, pay attention to the effective length of pipe thread when purchasing. Generally cylindrical pipe thread DN15 effective length of about 10mm.
3. The valve, ball valve is generally on their body or handle marked with nominal pressure, can choose according to their needs when purchasing.
4. Replace the existing gate or ball, you want to find out the length of the structure, so can not be installed after purchase.
Pipe thread 5. Triangle valve has two internal thread and external thread, to choose according to needs; also note that there are some triangular zinc alloy valve on the market today, the valve is priced lower than the average product, but corrosive and cause breakage.

Gas Valve For Water Heater pipe thread

1. Optional visual Water Heater Gas Valves surface should be no trachoma; plated surface should be uniform gloss shall watch for peeling, cracking, burning, exposed bottom, peeling, dark spots and obvious defects such as pitting; spraying the surface should be fine organization , smooth and uniform, not a stream linked to defects such as exposed at the end. The defect will directly affect the life of the valve.
2.Gas Valve For Water Heater pipe thread is connected with the pipeline, in the purchase of visual thread whether the surface dents, broken teeth and other obvious defects, with particular attention to the pipe thread and connector screwed effective length will affect the seal of reliable sex, pay attention to the effective length of pipe thread when purchasing. Generally cylindrical pipe thread DN15 effective length of about 10mm.
3. The valve, ball valve is generally on their body or handle marked with nominal pressure, can choose according to their needs when purchasing.
4. Replace the existing gate or ball, you want to find out the length of the structure, so can not be installed after purchase.
Pipe thread 5. Triangle valve has two internal thread and external thread, to choose according to needs; also note that there are some triangular zinc alloy valve on the market today, the valve is priced lower than the average product, but corrosive and cause breakage.

Why gas water heater after use to close the gas valve

Because of the complex structure of the Water Heater Gas Valves, which is linked by water vapor or thermoelectric valve solenoid valve to close the pipeline, the reliability is low, more prone to leak after leak and deposited inside the water heater; In addition, due to the temperature and humidity toilet environment and poorly ventilated environment, rubber pipes prone to aging and cracking phenomenon, once the leak prone to explosion. Therefore, after use to close the gas valve.

Gas water heater valve to shut it after use

Regular use can not close, long-term use closed.
Note the use of natural gas valves:
1.A purchase and use good quality and safety performance of the stove and water heater, counterfeit products are a source of the accident;
2, have a qualified professional install gas facilities according to specifications, can not change on their own or within a line installed by households, on the outdoor gas pipeline must not gland weight;
3, according to the proper use of the product specification requirements, gas appliance should be regular maintenance (water heater for the August-October), there is a fault should be timely maintenance;
4. stove use someone must take care, pay attention to use ventilation environment, so that "two off one open," that shut the gas valve and the kitchen door, open kitchen window; be sure to turn off the valve always when no one at home switch.
5. house gas facilities should be inspected regularly, regular replacement of aging cracked hose ends to be fixed, to prevent accidental removal of the hose caused the accident. Currently, there is a life span of fifteen years of metal gas connection pipe is gradually replaces the previous hose.
6. To install and use gas leak alarm device alarm when leakage occurs in a timely manner to ensure the safety of home.

Gas water heater solenoid valve how bad the good times

1, Gas Water Heater Valve  damage, can cause can not supply, generally just can not start her.
2, in the case of determining the normal ignition, the solenoid valve split out (off the gas source), then Bankai micro-switches, it will spark ignition, this time at the hand pads tap solenoid valve, solenoid valve It will pull, because there is no combustion, probably about 10 seconds the solenoid valve core will pop up, if they can so it should be good for him.
3, if you can not pull, it may be old or ignition battery has a problem.
4, solenoid valve failure can be divided into the body, and an electromagnetic coil, spool gas valve failure is closed lax, open action is not in place or not, it can be opened manually to repair, and then there is the coil, and You can observe whether the appearance of burn state, whether smell paste flavor, touch is hot, with a table measuring coil values, the same as the original to see if the same comparison.
5, the easiest method is to determine, whether there is pull solenoid valve sound 'is "popping" sound, if no sound is bad.

Development of the control valve

From the Gas Control Valve applications, the development direction of the following:
Small actuator: reduce costs, improve flow capacity.
Sleeve guide: The guide sleeve, it is beneficial for the help to reduce friction, noise favor, favor the flow characteristics of interchange
Balanced Spool: To reduce actuator thrust or push the moment, a balanced valve plug is an important and dynamic performance also improved its system
Integrated plug and seat: In order to overcome the shortcomings of poor sealing valve seat, using the same material composition integrated plug and seat trim, the leakage rate and at the same time minimize the unbalanced force.
Simple passage: simple flow path, flow resistance is reduced, not only can decrease the pressure loss at both ends of the valve, but also reduce costs.
Seal and friction: friction sealing properties and performance are two aspects of the contradiction, the control valve is designed not only to solve sealing problems, friction and life and other performance indicators also must pay attention to therefore, research stuffing and packing structures are valued, rotary type Propane Control Valve to be more widely applied
Noise reduction: using a variety of ways to reduce noise control valve, for example, the use of noise reduction sleeve and spool, spool using multi-level, limiting the use of noise reduction panels, etc. using extended
Using the pipeline with control valve and restrict the flow capacity of the valve member diameter: help reduce the valve inlet and outlet fluid flow rate, without having to install additional pipe diameter pipe, etc., help to reduce costs, by replacing the flow capacity of the valve member, scalable flow capacity, through the selection of the restricted flow capacity of the valve member correctable error calculated diameter is too large
In the digital information age, will be more use of smart valve positioner or nonlinear law through digital controller, compensate nonlinear controlled object, the less preferred control valve flow characteristics to compensate for nonlinear controlled object
Trim material varies with temperature, therefore, should consider the impact of thermal expansion at different temperatures, but also consider changes in voltage levels and so on at a high temperature, corrosion-resistant materials should be considered, fatigue resistance and other properties.
        

Control valve type

Many types of valveGas Control Valve, commonly used through single-seat, through two-seater, angular, diaphragm, low flow, tees, eccentric rotation, butterfly, sleeve type, spherical and the like.Propane Control Valve in the specific choices, do the following considerations:

Mainly based on the selected flow characteristics and unbalanced forces and other factors to be considered.

When the fluid medium is a suspension containing a high concentration of abrasive particles valve's internal materials to be hard.

As a corrosive medium, try to choose simple valve.

When the medium temperature, high pressure and great change, and should be chosen disc and seat materials by temperature and pressure changes small valves.

Flash and cavitation only in a liquid medium. In the actual production process, steam and air will form a vibration and noise, shortening the life of the valve, so the valve to prevent the valve should be chosen to produce steam and air.