China Custom ANSI/DIN/JIS 150lb Stainless Steel Forged Wn/Sw/So/Lj/Blind/Threaded Flange with high quality

Product Description

Product Description

ANSI/DIN/JIS 150lb Stainless Steel Forged WN/SW/SO/LJ/Blind/Threaded Flange

1. What Is A Flange?
The flange is a part that connects between shaft and shaft and is used for connection between pipe ends; it is also useful for flanges on the inlet and outlet of equipment for connection between 2 equipment, such as reducer flange. The flange connection or flange joint refers to a detachable connection in which flanges, gaskets, and bolts are connected to each other as a set of combined sealing structures. 

2. What Is A Pipe Flange?
Pipe flange refers to the flange used for piping in the pipeline installation and refers to the inlet and outlet flanges of the equipment when used on the equipment. There are holes on the flanges, and bolts make the 2 flanges tightly connected. The flanges are sealed with gaskets. The flange is divided into the threaded flange, welding flange, and clamp flange. Flanges are used in pairs, threaded flanges are used for low-pressure small diameters pipes, and welding flanges are used for high-pressure and low-pressure large diameters pipes. A gasket is added between the 2 flanges and then tightened with bolts. The thickness of flanges and the diameter and number of connecting bolts are different for different pressures.

3. What Is A Stainless Steel Flange?
Stainless steel flange, that is, the flange plate or the end flange connection piece whose body is made of stainless steel. The flanges containing stainless steel are called stainless steel flanges. Common materials are stainless steel grades 304, 304L, 316, 316L, 321, etc. 

Product Parameters

In every metal application, corrosion is an important consideration. In the U.S., around $9 billion goes to handling pipeline corrosion incidences. Metals are acted upon by rust, chemicals, as well as other environmental factors. Therefore, it would be best if you chose flanges that can withstand these factors. Stainless steel becomes a perfect choice since it has a high resistance to corrosion. 

Product Stainless Steel Flange
Type Weld Neck Flange, Socket Weld Flange, Slip On Flange, Blind Flange, Thread Flange, Lap Joint Flange, Plate Flange, Reducing Flange, etc.
Size 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 3 1/2″, 4″, 5″, 6″, 8″, 10″, 12″, 14″, 16″, 18″, 20″, 22″, 24″, 26″, 28″, 30″, 32″, 34″, 36″, 38″, 40″, 42″, 44″, 46″, 48″
DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN90, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN550, DN600, DN650, DN700, DN750, DN800, DN850, DN900, DN950, DN1000, DN1050, DN1100, DN1150, DN1200
Material Carbon Steel: A105/RST37.2/C22.8/Q235, etc.
Stainless Steel: 304/304L,316/316L,321,ect.
Pressure Class 150;Class 300;Class 600;Class 900;Class 1500;Class 2500
Wall Thickness Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS.
Standard ANSI/ASME B16.5, ANSI/ASME B16.47, DIN, JIS, GOST, UNI, etc.
Surface Treatment  Oiled or Painting or Sandblast or Galvanized
Application Because the flange has good comprehensive performance, it is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire fighting, electric power, aerospace, shipbuilding, and so on.
Service OEM or ODM Service Available
Packing Wooden case, pallet or as customers’ requirement
Delivery  Items FOB(30% down payment in advance, the balance before shipment)
CIF or CRF(30% in advance, the balance against with the copy of B/L)
Delivery Time Within 15-45 days after receipt of advance payment
Advantage 1. More than 10 years of flange manufacturing experience.
2. Near ZheJiang Port and ZheJiang Airport.
3. We provide: We have high-quality processing equipment. We promise on-time, stable quality, just price, client confidentiality.
4. With samples and order: We can offer dimension reports, material certification.
Inspection Optical Spectrometer
X-ray Detector
QR-5 Fully Automatic Computer Carbon Sulfur Analyzer Measurement
Tensile Test
Finished Product NDT UT(Digital UItrasonic Flaw Detector)
Metallographic Analysis
Imaging Studies
Magnetic Particle Inspection

Detailed Photos

Company Profile

ZheJiang Fusion Fittings Manufacture Co., Ltd. is an excellent manufacturer, factory, supplier that mainly produces pipe fittings, flanges, supports, and hangers, as well as steel sleeve steel steam insulation pipelines, polyurethane prefabricated direct buried insulation pipelines and acts as an agent for the sales of steel pipes for many large enterprises such as Tiangang, HangZhou Steel, HangZhou Iron and Steel, and HangZhou Iron and Steel. The company is located in Zhenggang Development Zone, YHangZhou County, ZheJiang Province, China. It mainly provides high, medium, and low-pressure steel pipes, pipe fittings, and product sales and services for electric power, petroleum, chemical, construction, water conservancy, and other industries. 

The company was founded in 2003, and the registered capital is 103,780,000. The company’s leading products are thermal insulation pipe, elbow, tee, reducer, flange, etc. The Product material can be divided into carbon steel, alloy steel, stainless steel series. It also sells carbon steel pipes, seamless steel tubes, spiral steel tubes, alloy steel tubes, stainless steel tubes, and other products.

In recent years, our company has continuously deepened its internal reform of the enterprise, innovating in the reform and developing in the innovation, and gradually formed a set of adaptive markets, with a strong competitive management mechanism. It realized the synchronization and integration with domestic and international market networks.

Other Products

Main Products

Packaging & Shipping


Q1: Why choose Fusion? 
A: Our company was established in 2003, covers an area of 200,000 square meters, with a building area of 120,000 square meters, a registered capital of 120 million, and an annual output value of more than 1 billion.
The company has 500 employees, including 25 senior titles and 50 intermediate titles.

Q2: What can we expect from Fusion? 
A: Professional negotiation, reasonable price, and good after-sale service.

Q3: Can you do customized design and size? 
A: Yes, OEM is available.

Q4: Can I have some samples?
A: Of course, samples are free.

Q5: When can we get samples and goods? 
A: If we have stock, the samples will be sent soon, making new will take about 5 days. 

Q6: How can you ensure the quality of products?
A: We have a very strict quality control system, in our factory, we have 5 quality control inspectors and each of them has many years of working experience.

Q7: Can I order a small quantity first?
A: Yes, you are welcome to try it.

Screw Sizes and Their Uses

Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.

The major diameter of a screw shaft

The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.

The pitch diameter of a screw shaft

When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.

The thread depth of a screw shaft

Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.

The lead of a screw shaft

Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.

The thread angle of a screw shaft

The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.

The tapped hole (or nut) into which the screw fits

A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.

China Custom ANSI/DIN/JIS 150lb Stainless Steel Forged Wn/Sw/So/Lj/Blind/Threaded Flange   with high qualityChina Custom ANSI/DIN/JIS 150lb Stainless Steel Forged Wn/Sw/So/Lj/Blind/Threaded Flange   with high quality