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Posted by on in Valve 101

You are working hard day at office or home, and you need a relaxing shower to rejuvenate. A warm bath might just do the trick. Earlier taking a warm bath was a cumbersome affair, as you had to warm the water in a pot on a regular kitchen fire, but today things have changed. With the advent of technology now, you simply have to open the tap and the warm water gushes out.   

Water taps evolved as an inspiration from the nice feeling of get wet in the rain. Subsequently, with advance in technology and designs, different shower taps came into existence. From simple taps emerged designer faucets and luxury bath fittings emerged. Without a good material and a valve, these types of bathing accessories would not survive, and stainless steel plays an important role. Today, valves and spray heads are manufactured from sturdy stainless steel or brass. These alloys are rust free and are easy to maneuver for years at stretch.

Process of manufacturing Stainless steel valves

The discovery of this alloy allowed the largest global production of faucets with durable and superior quality valves. To enhance their shelf-life they are chrome plated for high resilience and beauty. The important steps in manufacturing the stainless steel valves are as follows:
The hot steel alloy is poured into different tap molds, which are subjected to hot and cooling technique to give shape to the product. Once the batch of faucets is prepared, the designers and technical teams on the shop floor figure out the matching valve that would easily fit in the taps- well that’s the short way of explanation. Read out for a detailed method.

The raw material (iron and alloy) is first melted to be used in different forms. It’s density and tensile strength is monitored through the fabrication process. An electric furnace burning at more than 400 degree Celsius is used for crafting tough steel. 

Different grades of the stainless steel are required to manufacture the right quality of valves for use in industrial or residential purpose. Under this process, the alloy is molded and prepared through tuffling, sandblasting, and wire cutting.

Next follows the procedure of precision grinding that involves internal grinding of the stainless steel valve to produce the perfect cut and finish before the final product is sand blasted to give it a shimmering appeal and touch.

Modern baths and kitchens use designer faucets that require superior quality valve that would not rust easily die to regular use, and stainless steel is the perfect choice for designing such valves. For industrial tanks and machinery, that need valves only top grade stainless steel is used.
Finding stainless steel valve is easy simply walk into your neighborhood store or directly contact the manufacturers, if you intend to make the bulk purchase. You must inquire well about the products durability and price for a comparison before you make an educated purchase decision. 

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Posted by on in Valve 101

b2ap3_thumbnail_steel-ball-valves.pngAfter installation, it is important to take care of a ball valve and to ensure its proper maintenance. However, in many cases, even when you take great care of the valves to make sure that they function properly, still there might be cases wherein they need replacement.

This could be when the seals are broken or when some damage takes place in the valve. In fact, there can be several reasons for changing a ball valve. But what is important is to be aware of the procedure that is involved in its replacement.

Enumerated below are the few steps that can be followed to replace a ball valve in an easy manner:

  • Buying the new valve and other supplies: You have to begin with this step. It is necessary to have all the essential things that you would need to replace the ball valve, before you take the old valve out. Thus, buy the new valve along with the supplies that are required. Ascertain the type of pipe, whether it is made up of copper, PVC, etc. Depending upon the type of pipe, you will have to buy the other necessary supplies.
  • Turning off the water supply: The next step should be shutting off the water supply completely. Once this is done, you should then turn on the faucet, so that all the water that is sitting in the pipe comes out of the pipeline.
  • Taking the old valve out: For removing the old valve from the pipe, you can use a hacksaw. Ensure utmost caution while you cut the pipe with the hacksaw and take the valve out of the pipe carefully, without damaging anything.
  • Splicing the pipe & placing the new valve: After removing the valve, measure the opening to fit in the new valve and splice the new pipe with the old one. After this, put the new ball valve in place and close the pipe with the coupler.
  • Checking the new valve: Once all the above mentioned steps are followed, turn the water and the faucets on. Make sure that the valve is working fine and there is no leakage. If you detect that there is some leakage, then take the corrective action to fix it immediately.

In case, there is no leakage then turn off the water supply and seal the pipes back into the wall they are placed in. If necessary, you should repair the wall with a little paint and spackle.

By following these simple steps you can easily replace a ball valve. So, go ahead and buy your new ball valve and the necessary materials to replace the old valve. There are various manufacturers that offer great and durable valves. Contact them today and get the right products for your use, without any delay!

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Posted by on in Valve 101

b2ap3_thumbnail_control-valve-diagram-bw.gifControl Valves are the valves that are used to control different conditions. These are being frequently used in many areas to control the flow, temperature, pressure, or level of any liquid. They work by closing or opening either fully or partially, when signals are received from the controllers.

By assisting in controlling the flow/temperature of liquid, these valves are increasingly being employed in oil & gas as well as in manufacturing industries. This is not all! These valves are also used at homes to control the flow of water.

There are several advantages that these valves provide and some of their benefits are listed below:

  • Automatic Operation: One of the most important benefits offered by a control valve is that it controls the opening and closing process of a fluid automatically. Thus, the users don’t have to be careful about closing or opening the valves manually, when these types of valves are employed.
  • Easy Installation: Another great advantage of control valves is that they are absolutely easy to install. Many people can effortlessly install these valves on their faucets without having to call for assistance from a plumber or from the manufacturer. Thus, being easy to install, they help in saving the time and effort of the users.
  • Reduced Wastage: Due to the automatic operations of these valves, there is a great reduction in the wastage of resources. No matter whether these are being used in industrial or manufacturing processes, or at homes, they will ensure less wastage of resources, thanks to their efficient working.

In fact, these valves are extremely helpful in saving water. Studies have revealed that control valves can lead to water savings of up to 85 percent. Thus, they are helpful in meeting the rising demand for water, by reducing the wastage of this precious resource.

  • No Clogging: Another great benefit of flow control valves is that they do not obstruct the flow of the fluid. Small particles, deposits, dust, etc. do not clog the flow of the fluid due to the perfect design of these valves.
  • Help to be Ecologically Friendly: Businesses are under a constant pressure to meet the global ecological standards. With the usage of these valves, they can become ecologically friendly by reducing the wastage of natural resources and by ensuring their judicious use.
  • Increased Financial Returns: When resources are effectively utilized, the businesses are in a position to experience reduced process variability. This ultimately helps in attaining a strategic advantage, and increasing the financial returns.
  • Saving Money Becomes Easy: When control valves are used in faucets, they help a lot in water conversation. This means that people can save money on their water and/or sewer bills by using these control valves at their homes, offices, or factories.

Thus, there are various benefits which are offered by control valves. Get them from a reliable manufacturer and use them to experience all these benefits. Search online and find a good supplier of these valves at the earliest!

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Posted by on in Valve 101

b2ap3_thumbnail_0108.gifBefore understanding the concept of a solenoid valve, we should first understand what a valve is.

A valve is a device which works by regulating or controlling the flow of a fluid. This fluid can be liquid, gas, slurry, etc. Valves are available in a wide variety of makes and designs, serving a variety of purposes.

Now, a solenoid valve is just the combination of a solenoid and a valve, which regulates the movement of gas or liquid by means of electric current. This electromechanical actuator stops, releases, distributes or combines fluids; and is being extensively used in a number of application areas.

Components of a Solenoid Valve

A Solenoid Valve has parts like a coil of wire (which is the Solenoid), a metal core, electrical connector, bonnet nut, body, etc. These components are necessary for the efficient functioning of the valve. In case a malfunction occurs in any of the parts, the operation of the valve will not be effective.

Hence, it should be checked regularly that all the parts are working in their best possible manner. If not, then replacement(s) might be required to ensure proper working of the valve.

Uses or Areas of Application

These engineered products are used in numerous areas. Some of the uses of a solenoid valve are as follows:

  1. Home Appliances: Be it a dishwasher or a washing machine, these appliances require solenoid valves to work efficiently.
  2. Gas Boilers: Another major use of these valves is in the gas boilers. In boilers, these valves work by controlling the flow of gas towards the burner.
  3. Automatic Irrigation Sprinkler Systems: Not just helping the homeowners of today, but these valves are quite popular in helping the agriculturists as well. The solenoid valves are used in the automatic irrigation sprinkler systems with an automatic controller or regulator.
  4. Dentistry: If you are wondering how these valves are helpful for the dentists, then don’t be amazed! The solenoid valves are used in the dentist chairs so as to regulate the air and water flow.
  5. Water Purifiers: One of the latest uses of Solenoid valves is in the water purifiers or RO water systems that are all the rage at present.
  6. Refrigeration Applications: Solenoid valves are also required in refrigeration applications to commence or restrict the flow in the refrigerant circuit, thereby automatically regulating the fluids in the system.

There are many uses of these excellent valves. However, what is important is that you choose a good supplier of such products, to ensure a long term and hassle free use for years to come. So, do a bit of research online and find a reliable manufacturer offering various types of valves.

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Posted by on in Valtorc News

How To Order A Pneumatic Actuated Ball Valve Assembly

VT=PNEUMATIC ACTUATOR ALUMINUM ANODIZED
DA= DOUBLE ACTING
SR= SPRING RETURN
FO= SR FAIL OPEN
FC= SR FAIL CLOSED

STAINLESS PNEUMATIC
SSDA= STAINLESS DA
SSSR= STAINLESS SR
SSSRFO= FAIL OPEN
SSSRFC= FAIL CLOSED

BALL VALVES

BRZ-2PC-DM= BRASS 2 PIECE FULL PORT DIRECT MOUNT
BRZ-3PC-FP= BRASS 2 PIECE FULL PORT HANDLE
CS-3PC-MH = CARBON STEEL 3 PIECE FULL PORT HANDLE
SS-3PC-MH = STAINLESS STEEL 3 PIECE FULL PORT HANDLE
CS-HP6000 = CARBON STEEL FULL PORT PRESSURE 6000PSI
SS-HP6000 = STAINLESS STEEL FULL PORT PRESSURE 6000PSI
SS-FLG150 = STAINLESS STEEL FULL PORT FLANGED 150#
SS-FLG300 = STAINLESS STEEL FULL PORT FLANGED 300#
SS-3L/T-NPT= STAINLESS STANDARD PORT 3 WAY L OR T PORT
SS-3L/T-FLG150= STAINLESS 3 WAY FLANGED 150 L OR T PORT

VALVE SIZE
1/4"= 025
3/8"= 038
'/z"= 050
3/4"= 075
1 " = 100
1 1/4"= 125
1 '/2"= 150
2" = 200
21/2" = 250
3" = 300
4" = 400
6" = 600
8" = 800

 

 

OPTIONS

3 WAY VALVE L PORT = L
3 WAY VALVE T PORT = T
NAMUR SOLENOID VALVE NEMA 4X
CONDUIT CONNECTION 1/2"

PART# 9AAG -

VOLTAGE 115 VAC
24 VDC
12 VDC
220 VAC
24 VAC
EXPLOSION PROOF = XP

LIMIT SWITCH
NEMA 4X = LSN4
NEMA 7 = LSN7
POSITIONERS

3-15PSI = VP700
4-20MA = VP900

Tagged in: How-To Ordering Valtorc
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Posted by on in Actuated Valves

b2ap3_thumbnail_actuated-valve-blog.pngValves are one of those critical inventions that go unnoticed by many. They play an important role in our world by controlling, regulating, guiding and directing the flow of assorted types of liquids, gases, steam or flowing materials such as mill, grain, etc.

Valves are made of steel, iron, steel, bronze or PVC and can handle high temperatures and pressure points. In certain applications, the velocity, which is controlled by the valve, is vital in the success of the system in which it is applied and can be manually controlled or automated. In every industry, there are various types of valves including ball, butterfly, v-port, solenoid, sanitary, knife gate, plug and many more. The following is just a few examples of where valves are critical in a particular application: sewage/waste water plant, dams that controls a body of water, valves in your vehicle that control gas flow or oil flow to your engine and oil and gas refinery companies.

Oftentimes, an actuator is attached to the valve to administer pressure control and flow control in applications where it is crucial that the actual value be the same as the set point value. This motor box is operated by pneumatic pressure or an electric current. It then changes this energy into motion which changes or moves the valve positioning in order to keep to the set point that was entered into the actuator by the operator.

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Posted by on in Valve 101

ACTUATOR: A fluid-powered or electrically powered device that supplies force and motion to a VALVE CLOSURE MEMBER.

AIR SET: Also SUPPLY PRESSURE REGULATOR. A device used to reduce plant air supply to valve POSITIONERS and other control equipment. Common reduced air supply pressures are 20 and 35 psig.

AIR-TO-CLOSE: An increase in air pressure to the ACTUATOR is required to cause the valve to close. This is another way of saying the valve is Fail Open or Normally Open.

AIR-TO-OPEN: An increase in air pressure to the ACTUATOR is required to cause the valve to open. This is another way of saying the valve is FAIL CLOSED or NORMALLY CLOSED.

ANSI: An abbreviation for the American National Standards Institute.

ANTI-CAVITATION TRIM: A special trim used in CONTROL VALVES to stage the pressure drop through the valve, which will either prevent the CAVITATION from occurring or direct the bubbles that are formed to the center of the flow stream away from the valve BODY and TRIM. This is usually accomplished by causing the fluid to travel along a torturous path or through successively smaller orifices or a combination of both.

API: An abbreviation for the American Petroleum Institute.

ASME: An abbreviation for the American Society of Mechanical Engineers.

ASTM: An abbreviation for the American Society for Testing and Materials.

BALANCED TRIM: A trim arrangement that tends to equalize the pressure above and below the valve plug to minimize the net static and dynamic fluid flow forces acting along the axis of the stem of a GLOBE VALVE. Some regulators also use this design, particularly in high pressure service.

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Posted by on in Valve 101

b2ap3_thumbnail_handwheel-tor-blog.jpgWhat is torque?
Torque is a force tending to rotate a body about an axis.
(Example): force on a wrench tending to rotate a nut around a bolt.
 
How is Torque expressed?
Torque always has two parts, force and distance, and is expressed as the product of the two.
(Example): Torque = force x distance.  Torque = pounds x feet. Torque = Newtons x meters.
 
Does that express Torque fully?
Well, not quite. Direction such as clockwise or counterclockwise must be included to express torque fully.
(Example): Torque = force x distance. Clockwise. Torque = lbft CW.
 
Why is Torque expressed as force x distance rather than distance times force?
Torque is expressed as force x distance to distinguish it from Energy which has the same units but is expressed as distance x force.
(Example): 100 lbft Torque. 100 ftlb Energy.
 
Valve Handwheel Torque and Rim Pull:
Valves are often operated by turning a Handwheel. Operating torque is applied by pulling on the Handwheel Rim. That’s called, Rim Pull. The amount of applied torque depends on the Rim Pull and the Handwheel size. Applied torque = Rim Pull x Handwheel center to Rim distance.  Or Torque = Rim Pull x Half the Handwheel diameter.  (Example): 80 lb Rim Pull on a 24 inch Handwheel: Torque = 80 lb x 24/2 in = 960 lbin or 960 lbin x ft/12 in = 80 lbft.

Tagged in: Handwheel How-To Torque
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Posted by on in Valve News

b2ap3_thumbnail_ball-valve-internals.jpgWhat is a ball valve? It's a question new customers often ask us at Valtorc, so let's look into this to answer the question and explain what a ball valve is

A ball valve is described as a mechanical device that directs, guides and modulates the flow of various types of liquids by way of an opening of a ball which has an opening in the middle. The opening is referred to as the port. By turning the handle on the ball valve, this manually opens/closes the port which controls the pressure from the flow of the liquid. Durability and “perfect” shutdown/shutoff are what makes the ball valve advantageous over other type of valves.

Valves are found in our everyday living and may go unnoticed. For example, there are plumbing valves which are at our sinks in our spigots. There are valves inside our washing machines, dishwashers, gas fireplaces, outside water spigots, refrigerators and more. Various types of industries utilize valves for their productions. Such industries include electronics, power, automotive, printing, plastics, textiles, metal, medical, chemical and food, to name a few. The industries that utilize ball valves typically have a need for supporting high pressure and temps exceeding 480 degrees. Ball valves are simplistic to operate and repairs are made easily without being removed from their pipeline.

Being made of steel, brass, iron, bronze or PVC, ball valves can range in sizes from .2 to 11.81 inches. More complex control systems using valves that need to regulate flow through a pipe will need an actuator. The actuator controls the valve pneumatically or is motor-operated and keeps it positioned appropriately so that the flow of the liquid is precise to the changing pressures and flow levels.

The basic types of ball valves include Full Port, Reduced Port, V-port, Multi-port, Standard Port and Cavity Filler ball valve. There are 3-way and 4-way ball valves. Depending on the application would determine the type of ball valve being used. The specifications to be considered for determining the appropriate ball valve would be the temperatures and pressure, number of ports, valve size, type of body material, end connectors and configurations.

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Posted by on in Valve 101

b2ap3_thumbnail_butterfly-valve-article-image.jpgThere are various butterfly valves being utilized in every industry imaginable. The butterfly valve, aka quarter-turn valve, is one of the most popular and economical valves. You may not realize it, but you encounter butterfly valves on a daily basis. These valves, made of carbon steel, cast iron, stainless steel or plastic, are being utilized in many applications where assorted types of fluids, gas, air, steam are being controlled by shut-off or throttling. This valve is excellent for shut-off applications and the disk can completely block the passageway for fluids.

The body of a butterfly valve is comprised of a metal disk with a rod that runs through the disk. The rod is connected to an actuator or a manual lever which controls the disk turning it parallel or perpendicular to the flow. Depending upon the application, the disk can be made of plastic, steel, carbon steel or stainless steel. There are different options of actuators for this valve: pneumatic, electric and electro-hydraulic, manual and a gear type.

There are 3 types of butterfly valves. The standard butterfly valve is the concentric butterfly valve. The disk is metal with a rubber seat. Next, is the doubly-eccentric butterfly valve consists of various types of material for the disk and seat. This one is more of a high-performance valve. Lastly, the triply-eccentric butterfly valve (known as triple offset butterfly valve) is utilized when the application requires tight shut-off when gas or oil are involved. Being the most of expensive of the butterfly valves, the seats are typically laminated or metal in design.

Butterfly valves can be wafer or lug style. You will see wafer style valves installed when the valve is between pipe flanges. Lug style simply means that there are holes machined so that it can be bolted to the flange. These valves are typically used in HVAC applications, water systems, OEM, or irrigation for positive shut-off. Lug style will be a bit more expensive and are used at the end of the line.

When it comes to ordering butterfly valves for your specific application, you want to make sure that you are ordering from reputable and experienced company such as Valtorc International. Before you order, please know what element(s) you are dealing with, know the size needed, type of material and pressure flow, if possible. We can offer an assortment of trim features to ensure a perfect match for your particular valve needs.

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Valve actuators are of various types namely electrically operated , pneumatically operated.

  1. Pneumatically operated actuators can be diaphragm operated for globe , gate valves.
  2. Pneumatic actuators can be quarter turn type for ball or butterfly valves.
  3. Pneumatic actuators can be cylinder operated for say Knife gate valves.
  4. Actuators are again single acting spring return type or double acting.
  5. Again electric actuators can be classified as on-off type or control ( modulating type).

On- off pneumatic actuators can be operated with solenoid valves . As you mention the fluid to be natural gas, you have to select solenoid valves which are intrinsically safe at the same time these valves may be placed at a safe distance from the valves and piping. These valves are again actuated by controllers( on -off , PID) connected to the level switches, pressure sensors or temp sensors as the case may be.

To control flow rates, you need to use a pneumatic control valve with a pneumatic positioner operating on (0.2-1 kg/cm2) with current to pressure convertor or an electroneumatic positioner ( 4-20mA control signal). These can be used to control flow rate or downstream pressure. Other elements required are pressure or flow sensors, PID controllers.

The control again depends on how the plant is operated ie DCS or PLC controlled.

If it a simple requirement then the actuatar can be made to operate on a system of limit switches. While selecting an actuator the fail safe mode ( in case of power, signal or air failure) should also be taken into consideration , which is specified by words like normally open or normally closed etc.

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Posted by on in Valve 101

We all know that valves are present in our everyday lives, but valves work a lot “behind the scenes”—controlling what might seem like the “uncontrollable”.  Without valves, we would have engineering issues on how to regulate and control steam, water, air, corrosive liquids, gases and other materials. You can already see WHY valves are important, but WHERE did valves originate, you ask? Good question…

Maybe ancient man watched the beaver as he built his dam across the river. In ancient times, man used tree trunks, thick grasses, rocks, boulders and branches to regulate water. The Egyptians and Greeks also designed valves to lead water to irrigate their crops and provide water to their villages. However, the Romans were the ones to truly develop their canal systems and had a higher engineered technology behind those systems. Due to various country invasions, one may be led to believe that the Romans stole some of their technologies that they utilized. Either way, the Romans took their technology findings on to further develop the bronze plug valve which enabled them to distribute water to buildings.

It was not until the Industrial Revolution that valves really evolved to the next level. Steam was the power required to reform and strengthen this era and replaced muscle or “horse” power. Valves along with the patented steam engine made it possible to pump water out of mines. During this time, the US was able to increasingly provide mining jobs to those out of work. Mining, agriculture, textile mills, manufacturing plants, steel production, transportation and many other industries were emerging quickly. The economy exhibited unprecedented growth and life was getting better financially for most. Water and steam along with the evolution of the valve, contributed highly to the success of the Industrial Revolution industries.

Today, there are diverse types of valves made of materials such as stainless steel, carbon steel, cast iron, bronze, brass, PVC, CPVC and other alloy materials. Valves can be very small in size or up to 102 tons, which is the largest valve in the world! (See http://www.valveworldexpo.com/cipp/md_valve/custom/pub/content,oid,1943/lang,2/ticket,g_u_e_s_t/local_lang,2)  The application determines what type of valve you would need in order for your line to be successful. When ordering your valves, you want to ensure that you work with a reputable company such as Valtorc International. They will want to know all aspects of your application to determine which type of valve(s) would be best suited for your needs. Here is something else to think about—ask the supplier/manufacturer if their products are made in the US.  Let’s strengthen our economy and keep sales in our country when we can!

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