Butterfly Valves: Common Applications

Butterfly valves easily regulate fluid flow by using a circular disc to open up or close off a section of piping. They are also very durable, with high-performance butterfly valves capable of being used for temperatures of up to 1200 degrees Fahrenheit and pressures of up to 1440 psig. These traits make the butterfly valve a helpful asset for many projects and industries. Below are several common uses for butterfly valves:

Shut Off Valves

Butterfly valves are often the best choice for a general shut off valve above 1.5”-148”. Their simple design allows them to take up less space and less weight than other types of valves and even provides a tighter seal, than a gate of globe valve, usually bubble tight. This is most useful when trying to stop fluid flow since it prevents any fluid from passing through the pipe when closed.

our company as a Low Pressure Valve Factory in China ,if you need that pls contact us.

Cast Iron Butterfly Valve For Sale

Description of butterfly valve: 

Samll size, light weight and easy maintenance, the above series of valves and be used as a device to cut-off or regulate the flow in various medium pipes. 

Trough selecting different materials of disc and seal seat, as well as the pinless connection between disc and stem, the valve can be applied to worse conditionss, such as desulphurization vacuum, sea water desalinization. 

Lug butterfly valve allows downstream pipelined and equipemnts online repair, and it can be installed on pipe ends as exhaust valve. 

Advantages

 HYVP--: Quality Assured, Value Added

Products:  High Quality, 100% Testing 

 People: Educated Sales Team, Expereiced Technicians, Skillful Worker 

 Price: Lower management cost to secure competitive price. 

 Place : Near Port, Easy on transporation 

our company as a Low Pressure Valve Factory ,if you need that pls contact us.

About Resilient Seated Ductile Iron Gate Valve

About Resilient Seated Ductile Iron Gate Valve

Gate Valve Set Design:        

Gate valve seats are available either integral with the valve body or in seat ring-type construction. Integral seats have the same construction material as the valve body. A pressed-in or threaded-in seat permits variation. Seat ring construction provides seats, with threaded into position or are pressed into position and seal welded to the valve body.

Small, forged steel, gate valves have hard-faced seats pressed into the body. In some series, this type of valve available in sizes from 1/2 to 2 inches rated for 2500 psig steam service. 

iron casting Butterfly Valve

iron casting Butterfly Valve

How to make a completed order :

1.Send me more details of your requirement

2. I will collect your information and reflect them to our engineers

3. Engineers will recommend professional advise for you

4.Confirm the product details of our cooperation

  1)Confirm the product details (Material,Size,Quantity,Unit price, etc)

 2)Confirm shipping methods (by Sea,Express, air transportation,etc)

 3)Confirm packing type (by carton,wooden box,etc)

 4)Confirm shipment date (or working time,delivery time,etc)

 5)Make sure the contact name,telephone,address are right

 6)Confirm payment (initial payment,balance payment,full payment etc

5. Make a proformal invoice for customers to confirm

6. Customers to payment (via T/T,Western Union,Trade Assurance Order,etc)

7.Start to prepare or work for customers after received payment

8.On time to delivery within the delivery date

9.Handle export customs clearance for customers or by themselves

10.Track cargo real-time information service for customers

11. Until the customers receive the goods

12.Provide after-sales service for customers

What is Valve

Valve is a device that regulates, controls or directs the flow of a fluid by opening, closing, or partially obstructing fluid flow. Sound bit complicated? Ok, let me further simplified this.  A valve is a mechanical device that controls the flow and pressure of fluid within a system or Process.  So basically, it controls flow & pressure.

Types of Valves

Gate Valve

Globe Valve

Check Valve

Ball Valve

Butterfly Valve

Gate valve

Gate valve is the most common type of valve in any process plant. It is a linear motion valve used to start or stop fluid flow. In service, these valves are either in fully open or fully closed position. Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Gate valve provides good shutoff.

Globe Valve

Globe valve is used to stop, start, and regulate the fluid flow. Globe Valves are used in the systems where flow control is required and leak tightness is also necessary. Globe valve provides better shut off as compared to gate valve and it is costlier than gate valve.

Check Valve

The check valve prevents backflow in the piping system. The pressure of the fluid passing through a pipeline opens the valve, while any reversal of flow will close the valve.

Ball Valve

A Ball valve is a quarter-turn rotary motion valve that uses a ball-shaped disk to stop or start the flow. Most ball valves are of the quick-acting type, which requires a 90° turn of the valve handle to operate the valve. The ball valve is Smaller and lighter than a gate valve of same size and rating.

Butterfly Valve

A Butterfly valve is a quarter-turn rotary motion valve, that is used to stop, regulate, and start the flow. Butterfly valve has a short circular body. Butterfly Valve is suitable for large valve applications due to Compact, lightweight design that requires considerably less space, as compared to other valves.

our company as a Low Pressure Valve Factory ,if you need that pls contact us.

Valves Functions

　　Valve serve a various function within the piping system. Such as:

　　Stopping and starting a fluid flow. Depending on whether a valve is open or closed, it let pass the process fluid or halt the fluid.

　　Throttling the fluid flow. Some of the valves let you throttle the fluid depending open % of total opening. Lesser the opening higher the throttling and otherwise.

　　Controlling the direction of a fluid flow. Multiport valve lets you decide the way fluid will go.

　　Regulating a flow or pressure within the piping system. Some of the automatic control valves maintain the flow and pressure within the system by adjusting opening and closing.

　　Relieve pressure or vacuum from the piping system and equipment. Pressure and vacuum relief valve safeguard the process system from overpressure and during vacuum condition.

　　Different types of valves serve these functions. These valves can be classified or categorized based on;

　　Function

　　End connection

　　How it operates

　　Types of Actuator it used.

　　Classification of Valves Based on Function

In the above chart, you can see the types of valves and their function.

　　Isolation valve isolates or cuts the supply of fluid when needed. Gate, ball, plug, piston, diaphragm, butterfly and pinch valve falls under this category.

　　A control valve that regulates the flow of fluid falls in the regulation category. Globe, needle, butterfly, diaphragm, ball, plug, and pinch valve are used as a control valve. You can see that; some valves serve dual purposes such as globe and ball valve can be used as an isolation as well as a control valve.

　　Pressure and vacuum relief valve used to prevent overpressure and vacuum with the system that can damage the piping and equipment. Non-return valve such as swing and lift check valve prevents backflow within the system. Whereas, some valves are designed to serve a special purpose. Such as multiport, knife, and line blind valve.

　　Classification of Valves Based on Types of Actuator it Used

　our company as a Custom Low Pressure Valve Factory in China ,if you need that pls contact us.

Upward and downward Stem of Gate valve

Gate valve is a linear motion valve used to start and stop the flow of fluid. It’s a full opening/closing valve. Disc or gate used to start or stop the flow which is operated through a combination of stem and handle. Upward and downward linear motion of stem causes the opening and closing of the gate valve.

When the valve is the fully open condition, disc or gate fully removed from the flow path and provide no resistance for flow. This no resistance causes a minimum pressure drop. When the valve fully closed, disc to seal ring contact surface for 360 degrees and provides a tight seal. Therefore, very little or no leakage through disc when the valve at full closed.

On the opening of the gate valve, a large amount of working fluid flow in nonlinear manners (directionless flow) with respect to the gate opening percentage. Partial opening of the gate causes vibration in disc or gate due to fluid flow. Most of the flow change occurs near shutoff with a comparatively high fluid velocity causing disc and seat wear and eventual leakage if used to regulate flow. For all these reasons, the gate valve not used for throttling of flow.

Rising Stem Gate Valve:

In a rising stem gate valve, stem raised from the flow path when the valve is open.  During the opening of the rising stem gate valve, stem along with gate moves upward while closing, stem along with gate moves downward. In simple words, the stem is not vertically stationary in stem rising gate valve. Rising stem clearly see when the valve is open. It means the rising stem is the physical indication of valve opening. Rising stem valves are available in two basic designs. Some valves have a stem that rises through the hand wheel and some have a stem that is the thread to the bonnet.

Non-Rising Stem Gate Valve:

                                         

In a Non-rising stem gate valve, no upward or downward movement of stem outside the valve body. The stem internally threaded and remains vertically stationary. When the hand wheel on the stem rotates, gate or disc moves upward or downward on the internal threads but stem remains vertically stationary.

Non-Rising Gate Valve

In simple words, in non-rising stem gate valve, gate moves vertically up and down while stem remains stationary. These valves provided with pointer-type indicator threaded onto the upper end of the stem to indicate valve position. These valves are used where less space is available for valve operation and the medium is less corrosive for stem material.

our company as a Gate valve Factory in China ,if you need that pls contact us.

Resilient Seated Ductile Iron Gate Valve

Gate Valve Set Design:        

Gate valve seats are available either integral with the valve body or in seat ring-type construction. Integral seats have the same construction material as the valve body. A pressed-in or threaded-in seat permits variation. Seat ring construction provides seats, with threaded into position or are pressed into position and seal welded to the valve body.

Small, forged steel, gate valves have hard-faced seats pressed into the body. In some series, this type of valve available in sizes from 1/2 to 2 inches rated for 2500 psig steam service. In large gate valves, discs are often of the solid wedge type with seat rings welded in, pressed in, or threaded in. Screwed in the seat rings are considered replaceable since they may be removed and new seat rings installed.

our company as a Gate Valve  Supplier in China ,if you need that pls contact us.

Best Sales iron casting Butterfly Valve

Butterfly Valve is suitable for the transportation of liquid and gas (including steam) in various industrial pipelines, especially for the use of corrosive medium, such as sulfuric acid, hydrofluoric acid, phosphate, chlorine gas, strong alkali, aqua regia, etc.

How to make a completed order :

1.Send me more details of your requirement

2. I will collect your information and reflect them to our engineers

3. Engineers will recommend professional advise for you

4.Confirm the product details of our cooperation

  1)Confirm the product details (Material,Size,Quantity,Unit price, etc)

 2)Confirm shipping methods (by Sea,Express, air transportation,etc)

 3)Confirm packing type (by carton,wooden box,etc)

 4)Confirm shipment date (or working time,delivery time,etc)

 5)Make sure the contact name,telephone,address are right

 6)Confirm payment (initial payment,balance payment,full payment etc

5. Make a proformal invoice for customers to confirm

6. Customers to payment (via T/T,Western Union,Trade Assurance Order,etc)

7.Start to prepare or work for customers after received payment

8.On time to delivery within the delivery date

9.Handle export customs clearance for customers or by themselves

10.Track cargo real-time information service for customers

11. Until the customers receive the goods

12.Provide after-sales service for customers

our company as  a Butterfly Valve Manufacturer in China ,if you need that pls contact us.

Best Sales iron casting Butterfly Valve

Butterfly Valve is suitable for the transportation of liquid and gas (including steam) in various industrial pipelines, especially for the use of corrosive medium, such as sulfuric acid, hydrofluoric acid, phosphate, chlorine gas, strong alkali, aqua regia, etc.

How to make a completed order :

1.Send me more details of your requirement

2. I will collect your information and reflect them to our engineers

3. Engineers will recommend professional advise for you

4.Confirm the product details of our cooperation

  1)Confirm the product details (Material,Size,Quantity,Unit price, etc)

 2)Confirm shipping methods (by Sea,Express, air transportation,etc)

 3)Confirm packing type (by carton,wooden box,etc)

 4)Confirm shipment date (or working time,delivery time,etc)

 5)Make sure the contact name,telephone,address are right

 6)Confirm payment (initial payment,balance payment,full payment etc

5. Make a proformal invoice for customers to confirm

6. Customers to payment (via T/T,Western Union,Trade Assurance Order,etc)

7.Start to prepare or work for customers after received payment

8.On time to delivery within the delivery date

9.Handle export customs clearance for customers or by themselves

10.Track cargo real-time information service for customers

11. Until the customers receive the goods

12.Provide after-sales service for customers

our company as  a Butterfly Valve Manufacturer in China ,if you need that pls contact us.

Factory Price Manual Stainless Steel Butterfly Valve

Center line-type butterfly valve is the advance performance for the butterfly valve, the simple structure, The fluid flow,light weight, easy installation and low driving torque, can be use for cut off medium or regulated flow. The motivation can be according to the customer request,we have the handle, pneumatic and electrically operated valve, the difference situation will be match the different material according the function.

Manual Stainless Steel   Butterfly Valve Feature:

1.Small in size and light in weight and maintaince. It can be mounted whereever needed.

2.Simple, compact structure, quick 90 degree on-off operation.

3.Disc has two-way bearing, perfect seal, without leakage under the pressure test.

4.Flow curve tending to straight-line. Excellent regulation performance.

5.Various kinds of materials, applicable to different medium.

6.Strong wash and brush resistance and can fit to bad working condition

7.Center plate structure, small torque of open and close.

8.Long service life. Standing the test of ten thousands opening and closing operation.

our company as a  Low Pressure Valve Manufacturer in China ,if you need that pls contact us.

Wholesale 4 inch butterfly valve For Sale

Wholesale  4 inch butterfly valve is suitable for the transportation of liquid and gas (including steam) in various industrial pipelines, especially for the use of corrosive medium, such as sulfuric acid, hydrofluoric acid, phosphate, chlorine gas, strong alkali, aqua regia, etc.

Feature:

1.Small in size and light in weight and maintaince. It can be mounted whereever needed.

2.Simple, compact structure, quick 90 degree on-off operation.

3.Disc has two-way bearing, perfect seal, without leakage under the pressure test.

4.Flow curve tending to straight-line. Excellent regulation performance.

5.Various kinds of materials, applicable to different medium.

6.Strong wash and brush resistance and can fit to bad working condition

7.Center plate structure, small torque of open and close.

8.Long service life. Standing the test of ten thousands opening and closing operation.

Our company as a  Low Pressure Valve Manufacturer in China ,if you need that pls contact us.