Your Reliable SS Globe Valve Manufacturer
Kinvalve stainless steel globe valves are ideal for your general-purpose industrial applications.
Our stainless steel globe valves feature whole stainless steel construction to use for your erosive and corrosive services.
Stainless Steel Flanged Globe Valve
Kinvalve stainless steel flanged globe valve is a great solution for your any highly corrosive requirement, high pressure and high flow ratio, gas, oil, water, paper/pulp applications.
All our stainless steel flanged globe valves are rising stem configuration, bolted bonnet type.
At Kinvalve, there are many types of flange standards in the stainless steel flanged globe valves.
In accordance with your requirements, they are DIN, JIS, ANSI, BS and ISO standard flange types.
Our stainless steel flanged globe valves are with the sizes from 2inches to 12 inches for your pipeline options.
Kinvalve stainless steel flanged globe valves always have a backseat design, this backseat design together with the stem packing provide you reliable tightness.
The backseat is usually PTFE and some other material is available for your specification.
Stainless Steel Threaded Globe Valve
Kinvalve stainless steel threaded globe valve offers you simple construction and greater durability and wear with PTFE seals and packing as well as stainless steel seats and disc.
Our stainless steel globe valve with threaded end is always in screwed bonnet configuration.
At Kinvalve, NPT globe valves and BSP globe valves are the most common stainless steel globe valves with a threaded end.
This kind of stainless steel globe valve has a working pressure 200PSI WOG, with a temperature range from -20 degree to 400 degrees F.
Our stainless steel threaded globe valves are available in the size range from 1/2 inch to 4 inches for your small pipelines.
At Kinvalve, our stainless steel flanged globe valves available in only one type of body design, called t type globe valve, T pattern globe valve or T globe valve.
For the threaded globe valve, there are two types of body designs including t pattern and y pattern globe valve. Our T pattern globe valve is also known as the straight pattern globe valve.
T-type stainless steel globe valve is the most common type of stop valve you can find in the market.
This stainless steel globe valve has a horizontal seat design, and the stem and seat move vertically relative to the flow direction of the medium when opening and closing.
When pressure drop is not your concern and you need flow adjustment, a T-type stainless steel globe valve can be recommended for you.
But when your focus is on flow rate and differential pressure, please choose the T-type globe valve carefully. T pattern globe valve is usually a bidirectional globe valve.
In a typical Y-type stainless steel globe valve, you can find a 45-degree angle between the stem and the seat plane.
You’ll benefit from its relatively straighter flow direction, which is your solution for a smaller resistance to the flow fluid.
We solve your problems and make life easier.
As a most outstanding ss globe valve manufacturer, Kinvalve is always devoted to maintaining its reputation for high performance.
At the same time, we pursue better design to provide you with cost-effective stainless steel globe valves.
Just give us a call or mail to have an instant quotation.
Stainless Steel Globe Valve: The FAQ Guide
This guide covers all information about stainless steel globe valve such as parts, working principle, features, uses and quality standards, among others.
So if you want to be an expert in stainless steel globe valves, read this guide.
What is Stainless Steel Globe Valve?
Stainless steel globe valve
This refers to a linear motion valve made of stainless steel materials designed to stop, start, and regulate media flow.
It features a rounded globular shaped body and widely employed to control liquid or gas passing through a pipework system.
You can use most conventional stainless steel globe valves for isolation and throttling services.
Also, you can altogether remove the globe valve from flow path, or it can totally close the flow path.
Nowadays, this mechanical device comes in a wide range of designs and shapes other than the traditional spherical body shape.
What is Stainless Steel Globe Valve used for?
Stainless steel globe valve is a multipurpose device.
Ideally, you can use it for regulating flow pressures of different types of media passing through it.
You can also use this gadget to completely shut-off the flow.
In some incidents, you may choose to use this type of device as a pressure relief valve or as a check valve.
Furthermore, you can use a stainless steel globe valve for throttling flow control, especially in applications requiring small-sized piping.
How does a Stainless Steel Globe Valve Work?
Ideally, a stainless steel globe valve is designed to stop, start, and control media flow.
This device features a movable disc and a stationary ring seat in a generally spherical valve body.
The seat of this glove valve is located at the center of and parallel to the pipe.
Also, the opening in the seat of this valve is closed off with the disk.
When you turn the handle manually or through an actuator, the disc is lowered or raised by means of valve stem.
However, when the disc is fully lowered, it shuts off the fluid flow.
But when the disc is raised fully, the fluid flow is at its maximum rate.
The disc can be raised to a somewhat less than maximum level.
In this case, the fluid flow is controlled with proportion to vertical travel of the disc.
In simple words, when the valve is turned in a clockwise motion, the disc lowers to the seat.
This physically obstructs the fluid’s path, thus either reducing or blocking it entirely depending on how low the disc moves.
And when the valves move in a counterclockwise motion, the disc raises.
Of course, this increases fluid flow or allows it to flow completely.
What is the Difference Between Stainless Steel Globe Valve and Gate Valve?
Gate valve
Globe valve
Stainless globe and gate valves are the two commonly used valves in various industrial applications.
These valves may look alike since they have more or less similar external housing, but they function differently.
The major difference between these two types of valves is inner elements and form of flow.
Nevertheless, here are some of the vital ways these valves compare;
a) Stainless steel gate valves are unidirectional. It means you can install them in any direction and still attain the necessary results.
On the other hand, stainless steel globe valves are not unidirectional; hence can only be installed in a specific direction.
b) In terms of pricing, stainless steel gate valves are relatively cheaper than stainless steel globe valves of the same size.
c) Stainless steel gate valve offers comparatively less resistance to fluid flow when in a fully opened position. It also has small pressure drops.
On the other hand, stainless steel globe valve has high pressure drops even when fully opened. It also offers substantial resistance to fluid flow.
d) Stainless steel gate valves are used for on/off shut-off controls.
However, a stainless steel globe valve is used for both on-off shut-off controls, flow regulation, and throttling services.
e) The construction design of the stainless steel gate valve reduces fluid trapping in the line.
Stainless steel globe valves, however, have a larger amount of fluid trapping due to flow direction.
Can you use Stainless Steel Globe Valve for Isolation?
Yes.
You can use this type of valve for isolation and throttling services.
However, stainless steel glove valves tend to exhibit slightly higher pressure than straight-through valves such as gate valves.
But you can still use it where the pressure drop through the specific valve is not necessarily a controlling factor.
How do you Repair a Leaking Stainless Steel Globe Valve?
Technically, you can rotate a stainless steel globe valve to 360° to open or close off a pipework system.
It has a packing washer, which is often the main source of leaks.
However, there are several ways you can repair this component to prevent it from leaking.
Here are some of the steps you need to follow to repair a leaking stainless steel globe valve;
Step 1: Cut off the Fluid Supply
Use the shut-off valve to cut-off fluid supply to the valve.
Importantly, ensure that you open the valve to release the pressure before detaching it from the pipework.
Step 2: Remove the Globe
Find an adjustable pipe wrench and use it to the bolts holding valve body into its upper covering known as a bonnet.
Typically, these valves often have at least two bolts holding these two components, but this is dependent on the actual valve design.
Then use a screwdriver to pry the globe valve from the bonnet.
Step 3: Inspect and Replace the Packing Component
Evaluate whether the packing washer is corroded or has a loose fit.
If it is damaged, replace it with a new washer.
However, if it is intact, check out the gasket and seat of the stainless steel globe valve for any leakage problems.
Step 4: Reassemble the Unit
Fix the new packing washer into the globe valve, then reattach the valve into the bonnet.
Ensure you secure all the bolts accordingly.
Step 5: Restore Supply
Use the shut-off valve to restore media supply to the valve.
While at it, also ensure you clear air from the pipes then test the valve for leakage.
What are the Available Body Patterns for Stainless Steel Globe Valve?
There are three primary body designs or patterns of stainless steel globe valves.
They include the following;
· Standard Design
It is arguably the most common body design of stainless steel globe valves.
This pattern features a horizontal setting seat, which allows the stem and disc to move perpendicular to the fluid flow direction.
Standard globe valve design offers highest resistance to flow due to its tortuous flow passage.
This design also has the highest pressure drop and the lowest coefficient of flow.
Standard patterns, also known as T-pattern, are commonly used in severe throttling services like bypass lines around a control valve.
You can also use them in applications where pressure drop is not a primary concern.
· Angle Design
This pattern is a slight modification of the standard globe valve design.
It features ends at an angle of 90° and allows fluid flow with a single 90° turn.
Angle pattern globe valve has a slightly lower coefficient of flow compared to oblique design.
It is ideal in applications with periods of pulsating flow since it can handle slugging effect synonymous with this flow.
If you mount this globe valve design near a pipe bend, it makes the device to reduce flow resistance greatly.
Additionally, it helps in reducing the number of pipe joints and saves a pipe elbow.
· Oblique Pattern
It is also referred to as Y-Pattern design.
This design is an ideal alternative for high-pressure drop inherent in most stainless steel globe valves.
It reduces flow resistance of the globe valve to an absolute minimum.
The seat and stem in this design are angled at about 45 degrees.
This angle gives a straighter flow-path at full opening and offers the least flow resistance.
An oblique pattern can be cracked open for longer periods without severe erosion.
Typically, they are used for throttling during seasonal or start-up operations.
What are the Common Disc Designs of Stainless Steel Globe Valve?
Stainless steel globe valve discs are designed in three primary designs, which include the following;
1) Conventional Disc
This disc design is also known as a ball disc.
It is the earliest disc design and seat construction made of a ball-shaped metal disc.
This design also has a short taper, which fits against a flat-surfaced seat inside the body.
Globe valve with a conventional disc is more suitable in applications, which severe throttling is not a major concern.
It can throttle flow, but it is majorly used to stop and start a flow.
This design provides better results when it is wide open or fully closed with little modulation of flow.
The reason here is that it has a short tapered disc, which is subject to severe erosion and wire drawing.
2) Composition Disc
This disc design uses a hard non-metallic insert ring on the disc.
Want more information on Stainless Steel Globe Valve Factory? Feel free to contact us.
Related articles:Understanding Scintillation Crystals: Applications and BenefitsThis insert ring creates a tighter closure.
It is a modification of a conventional disc though still unsuitable for throttling services.
Composition discs are essentially used in applications surrounding steam and hot water.
It has excellent resistance to erosion and is sufficiently resilient to close on solid particles without damaging the valve.
Moreover, you can find it in a wide range of designs, thus making it a relatively adaptable choice to consider.
Composition disc is easy to repair and needs less power to seat tightly.
3) Plug Type Disc
This type of stainless steel globe valve is regarded as the best among the three available disc designs.
It is suitable for throttling and hard service.
Plug type disc is a long tapered metal plug, which seats into a cone producing a wide seating surface.
This disc is not easily affected by foreign material by wire drawing and provides full flow whenever the valve is fully open.
The design construction of this valve also allows easy and faster replacement of the disc and disc if need be.
What is the Stem Configuration of Stainless Globe Valve?
Globe valve
Stem refers to a component connecting the hand-wheel and disc of a stainless steel globe valve.
It comes in a threaded design and fits into the threads of valve bonnet.
This design is known as nut construction.
In this instance, the component is designed to rotate while lowering or raising the disc.
Alternatively, it can be designed to prevent it from rotating while undertaking this task.
This is commonly referred to as a T-slot design. In this design, the disc slides over the stem.
Besides, the disc can be an integral of stem.
Some of the common disc-stem configurations include the following;
However, most stainless steel globe valves often incorporate a rotating stem because of its design simplicity.
What is the Flow Direction through Stainless Steel Globe Valve?
Technically, a stainless steel globe valve is considered uni-directional.
Most globe valves have specific flow directions based on the particular application.
Thus you can choose to have fluid flow on this device either above or below the disc.
Even so, the flow direction of this mechanical device is from down to up. But you can always arrange this device to allow disc to close against or in same fluid flow direction.
In such an instance, it implies the stainless steel globe valve often adopts a mandatory sealed design.
Therefore, when you want to open the valve, the globe valve disc must overcome resistance, which the stem and packing friction makes.
For applications, which require low temperatures and low pressures, globe valves are installed to let pressure under the disc.
But for high temperature and high-pressure applications like steam, globe valves are installed to allow pressure above the disc.
Nevertheless, it must be installed in appropriate relation to the media flow as indicated by flow direction arrow marked on the valve body
What are the Advantages of Stainless Steel Globe Valve?
Stainless steel globe valve has a host of benefits, making it a worthy investment for particular applications.
Some of these benefits include the following;
- Available in a variety of patterns and designs, each offering unique capabilities. These include tee, wye, and angle patterns.
- Provides excellent shut-off capability making it an ideal option for a variety of fluid flow control applications.
- Offers moderate to good throttling capability
- Relatively shorter stem travel between open and closed positions when you compare it to gate valve.
- Easy to maintain since the seats and the discs are readily replaced or refurbished.
- Exceptionally durable and can withstand different environmental and mechanical conditions in various applications.
Are there any Shortcomings of Stainless Steel Globe Valve?
Yes.
Stainless steel globe valve has a few disadvantages, which include the following;
- Has a relatively high-pressure drop compared to gate valve
- It needs greater force or a larger actuator to seat the valve
- Shut-off flow over the seat throttling flow under the seat
- Relatively heavy compared to other valves of a similar rating
What are the Typical Applications of Stainless Steel Globe Valve?
Stainless steel globe valves are one of the valves’ types largely used in a wide range of applications.
And these applications range from both industrial and residential.
Some of the typical applications of this mechanical device include the following;
- Turbine seals and drains
- Chemical feed, feed-water, extraction drain systems, and condenser air extraction systems.
- Cooling water systems, especially where there is a need for regulating flow
- Heater drains, boiler vents and drains as well as mainstream vents and drains
- Fuel oil systems, particularly where flow needs to be controlled, and leak-tightness is of significance.
- Low point drains and high point vents where safety and leak-tightness are relatively major considerations.
- Turbine oil systems
What are the Parts of Stainless Steel Globe Valve?
Parts of globe valve
A typical stainless steel globe valve consists of a variety of parts.
Some of these components include the following;
- Wheel nut
- Hand-wheel
- Yoke sleeve
- Gland bolt
- Gland flange
- Gland bush
- Gland packing
- Bonnet
- Bonnet bolt
- Back seat
- Gasket
- Stem
- Wedge gate
- Seat
- Valve body
Each of these components plays integral in determining the overall performance and efficiency of this globe valve.
Thus you should never disregard any part since absence or failure of any part may cause malfunctioning of the device.
How do you Choose a Suitable Stainless Steel Globe Valve?
Shopping for an ideal stainless steel globe valve may be a bit challenging, especially for a newbie.
There are critical elements, which you must always have in mind to ensure you make the right purchase decision.
Nevertheless, here are some of the factors you must consider when looking for a suitable globe valve;
· Valve Sizing
When choosing an ideal globe valve, ensure you go for the right size suitable for your application.
Generally, large valves often require higher power and tend to be relatively noisy in high-pressure systems.
However, manufacturers often size the buyer to make the selection quite easy when buying.
Technically, the science behind valve sizing is to determine the flow through the diameter.
· Pressure
Ideally, stainless steel globe valves can handle pressure limits of up to about psi.
However, the pressure limit is often dependent on the globe valve’s design construction, size, and temperature.
High-pressure lines may damage the trim, actuators, and stem packing due to pulsations, pressure drops, and impacts in system.
Therefore, you need to figure out the specific pressure rating of the device and ensure you subject it to the recommended limits.
· Flow Rate
The pressure drop and flow characteristics across the valve are what determine the flow rate.
In stainless steel globe valves, you can determine the flow rate by the lift of valve plug from the seat.
Thus, it becomes easy to roughly determine the device’s flow rate by linear position of manual hand-wheel.
In essence, it makes it easy for you to select the right type of stainless steel globe valve.
· Rangeability
This refers to the maximum to minimum flow rate that a particular globe valve type can control.
There are three factors, which affect this characteristic, and they include; seat leakage, valve geometry, and actuator’s accuracy.
Therefore, this is a critical element, which you should never forget or overlook when choosing an ideal stainless steel globe valve.
· Flow Characteristic
This element refers to the relationship between the globe valve stroke and flow co-efficient.
Flow characteristic is inherent to the particular design of a globe valve.
As the valve is opened, the flow characteristic enables a specific amount of flow through the valve at a certain stroke rate.
And this is vital for throttle control since it regulates media flow predictably.
· Flow Coefficient
This refers to the capacity per minute at a given temperature that fluid will flow through the valve when opened at a particular temperature.
Typically, flow coefficient is vital for determining the ideal size that best allows valve to pass through the desired flow rate.
You can also use it to compare flow capacities valves of various types, sizes, and manufacturers.
Ideally, flow coefficient varies in gases, steam, liquid substances.
Additionally, it is also dependent on pressure drops across the globe valve.
Therefore, you need to figure out the ideal flow coefficient depending on the type of media passing through the valve.
As you can see, these elements are relatively technical.
It thus requires in-depth knowledge to determine the right globe valve based on these aspects.
You may thus consider seeking assistance from a knowledgeable and experienced technician to guide you through a selection process.
How Long Can a Stainless Steel Globe Valve Last?
Globe valve
Technically, stainless steel globe valve features a durable design construction.
First, the material used for manufacturing this device exhibits excellent shear and tensile strength.
In that aspect, it can withstand different types of aggressive and harsh conditions it could be subjected to.
Moreover, the craft is quality and solid to hence guaranteeing the ideal durability.
This device is also treated with suitable surface coating elements to prevent it from corrosion and erosion.
Generally, it is a durable device and can last for as many as 10 years or more, depending on various factors.
Nevertheless, the exact longevity of stainless steel globe valve is dependent on quite a number of prevailing factors.
One of these factors is the type of fluid passing through the valve regarding chemical composition and related elements.
Media with relatively high concentrated chemical compositions is likely to wear down a globe valve faster.
The pressure and temperature rating of the stainless steel valve against the fluid flow also determines precise durability.
Globe valves with higher pressure and temperature rating tend to last longer, especially when subjected to low pressure and temperature fluid flow.
And prominently, the general maintenance routine of the valve is another longevity determinant of this device.
What are the Machines involved in Manufacturing Stainless Steel Globe Valve?
They are quite a number depending on the precise design of the stainless steel globe valve you are manufacturing.
However, the common types of machines involved in manufacturing process of this device include the following;
- 3D printers for printing the blueprint designs
- Grinding machine
- Multiple edge cutting tool
- CNC machine tools
- Hobbing machine
- Broaching machine
- Shaper
- Drill press
- Electrical discharge machine
- Lathing machine
- Milling machine
How do you Determine Whether the Glove Valve is Stainless Steel?
The best technique here is to find out whether the device’s material matches stainless steel properties.
However, it can be a challenging task, especially if you are a novice.
But some of the general features of stainless steel material to look into on the device include the following;
- High shear and tensile strength
- Excellent tolerance to high temperatures
- High corrosion and erosion resistance
- Low maintenance
- Excellent durability
- Highly recyclable
These are the core properties of typical stainless steel material.
Therefore, you need to ensure that the device’s material exhibits such features to a great extent.
Are Surface Coating Treatments suitable for Stainless Steel Globe Valve?
Absolutely correct!
Surface coating materials are ideal on this type of globe valve for enhancing durability.
In many instances, the environment under which globe valves operate is often harsh and somewhat aggressive.
Therefore, you’d need a perfectly coated device to enhance durability and tolerance in such settings.
Ideally, the surface coating treatments prevent this device from undue erosion and corrosion.
Furthermore, it also helps to prevent seizure of stainless steel globe valves.
These treatments on the device are also essential in preventing unnecessary repair and maintenance needs.
A suitably coated stainless steel globe valve can last for many years before replacing any major component.
Nevertheless, the effectiveness of the coating on this device’s surface is dependent on its compatibility with the material and environment.
Therefore, you must ensure that you get a globe valve coated with the right surface treatment substance.
What are the main Applications of Stainless Steel Globe Valve?
Essentially, a globe valve is unidirectional.
Therefore, it is suitable for applications where the need for massive changes in pressure are not a concern.
Some of the typical applications of stainless steel globe valve include the following;
Stainless steel globe valve
- Turbine drains and seals
- Fuel oil systems where leak tightness is a concern
- Cooling water systems
- Low point drains and high point vents where safety and leak tightness are main concerns
- Heater drains, mainstream vents, and boiler vents
- Extraction drain systems, chemical feel, feed water, and condenser air extraction
- Turbine lube oil systems
How much Does it Cost to Buy Stainless Steel Globe Valve?
The cost for stainless steel globe valve often varies depending on a host of variables.
For instance, the size of the valve determines the actual cost. A bigger unit will be relatively more expensive than a smaller one.
Whether you are getting a standard unit or a customized one is another determinant of globe valve’s cost.
Mostly, customized units tend to be more expensive than standard designs.
Minimum order quantity also plays an integral role in determining the cost of purchasing this device.
Manufacturers and suppliers usually offer better discounts for higher quantities than smaller quantities.
Also, the manufacturer you are purchasing from determines the actual cost of this unit.
Some tend to be affordable than others depending on different prevailing factors such as brand positioning.
In general, there is no fixed cost of purchasing stainless steel globe valve.
The actual cost is dependent on a variety of factors, such as the ones mentioned above.
Does Stainless Steel Globe Valve Reduce Flow Pressure?
Yes.
The internal construction of a globe valve has a flow path where the media from the flow passes from top to bottom or vice versa.
This design allows it to throttle the fluid flow; hence you can use it to reduce flow pressure leading to increased pressure drop.
What is the Suitable Size of a Stainless Steel Globe Valve?
In many instances, the ideal stainless steel globe valve size is based on the specific needs of a particular application.
Various projects require different sizes of this device to guarantee efficiency and performance.
Therefore, ensure you figure out the specific needs of your application to determine the suitable size of globe valve it requires.
Secondly, an essential factor such as fluid flow rate determines the ideal size of stainless steel glove you’ll need.
Globe valves with larger bore diameters provide better fluid flow compared to smaller bore diameters.
Nevertheless, the whole system pressure is exerted on the disc is often transferred to the valve stem.
Thus the practical size limit for a globe valve to consider is 2” – 12” (90#) unless there is a special exception.
However, stainless steel globe valve sizes vary up to 2”-24” (150#).
But larger sizes would need massive force to be exerted on the stem to regulate the valve under pressure.
Several engineering applications sizing of globe valves should be in a manner it operates between 20-80% open at optimum required flow rate.
Can a Stainless Steel Globe Valve Fail?
Stainless steel globe valve
Yes.
However, this depends on a variety of factors and causes.
In many instances, globe valve tends to become unstable at a stem travel of 20% or below.
Some of the main causes of failure in this device include the following;
- Valve disc separating from stem
- Damaged pipe with lost pressure containment
- Damaged seat leading to valve leakage
- Damaged packing
- Stem fires occur with lighter hydrocarbons
Are there any Disadvantages of Stainless Steel Globe Valve?
Yes, albeit a few.
They include the following;
- Higher pressure drop
- Relatively heavyweight compared to other valves of similar rating
- Large size globe valves need more power to operate and tend to be noisy
Which Type of Material is Stainless Steel Globe Valve made from?
Typically, stainless steel globe valve has different components made from various types of materials.
However, the common materials used for making the valve body include the following;
- Stainless steel
- Carbon steel
- Alloy steel
- Cast steel
- Martensitic steel
What are the Quality Standards for Stainless Steel Globe Valve?
There are numerous quality standards for this device.
Ideally, these standards help in enhancing the quality and ensuring the globe valve meets the required industrial and customer requirements.
Some of the main standards often used on this device include the following;
· API 623
This refers to a standard from the American Petroleum Institute.
API 600 describes criteria for globe valve description or construction, and it’s trim or material designation.
· ISO
It refers to quality standards specifying the requirements for heavy-duty series of bolted bonnet stainless steel globe valves.
Ideally, this standard is designated for valves used in petroleum refinery and related applications.
ISO is relatively similar to API 623, only that the former is described in ISO terms.
· ASME B16.34
This is a type of globe valve standard, which covers a wide range of parameters.
Some of the parameters include tolerance, marking for the cast, pressure-temperature ratings, welding end, and dimensions.
Also, it describes the nondestructive examination requirements and testing parameters.
Application of ASME B16.34 standards enables you to comply with applicable regulations within the jurisdiction.
While at it, you’ll attain cost, safety, and operational benefits from using this type of valve.
· API 598
This standard covers the testing and inspection requirements for different types of valves, including globe valves.
API 598 has acceptable leakage rates for gas testing and liquid.
In short, there are many factors to consider when choosing stainless steel globe valve.
In case you have any question or inquiry about stainless steel globe valve, contact Kinvalve right now.
Are you interested in learning more about Industrial Valve Supplier? Contact us today to secure an expert consultation!
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