Test Flanges

Understanding your choice of test flanges options

There are several factors to consider when choosing the right test flanges for your project. Test flanges are essential components for testing, measuring and regulating pressure in various industrial environments. They are used in pipelines, refineries, chemical plants and many other industries. With so many test flange options on the market, choosing the right one can be daunting.

What is a test flange?

A test flange is a device used to connect two piping systems temporarily to perform different types of tests, such as pressure testing, leak testing, or hydrostatic testing. It is a flat circular plate with bolt holes and sealing faces used to connect two pipes.

Types of Test Flanges

6B test flanges conforming to Table 36, Table 37 and Table 38 of API 6A (19th Edition) are available.
6BX test flanges conforming to Table 44 and Table 45 of API 6A are available.

6B test flange	6BX test flange

6B Test Flange
The 6B test flange is a type of API flange with a pressure rating of 5,000 psi. It is commonly used in wellhead equipment and is available in different sizes ranging from 2-1/16″ to 30″. The 6B test flange is designed to provide a secure and leak-proof connection during testing and is suitable for both pressure testing and leak testing applications.
6BX Test Flange
The 6BX test flange is a type of API flange with a higher pressure rating of 10,000 psi. It is commonly used in high-pressure drilling and production applications and is available in sizes ranging from 1-13/16″ to 26″. The 6BX test flange is designed to provide a secure and leak-proof connection during testing and is suitable for both pressure testing and leak testing applications.

Materials of Test Flanges

Depending on the specific application requirements, test flanges are made from a variety of metal materials, including:

Titanium Test flange	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7, ASTM R50250/GR.1| R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper Test flange	T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Test flange	ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Carbon Steel Test flange	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel Test flange	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel Test flange	ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Hastelloy Test flange	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Brass Test flange	3602 / 2604 / H59 / H62 / etc.
Inconel Test flange	ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750
Monel Test flange	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Duplex Test flange	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Test flange	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Alloy 20 Test flange	ASTM B462 / ASME SB462, Carpenter 20 Alloy, Alloy 20Cb-3
Aluminium Test flange	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Test flange	ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Nimonic Test flange	Nimonic 75, Nimonic 80A, Nimonic 90
Other Test flange material	Tin bronze, Alumunum bronze, Lead bronze
Incoloy Test flange	ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925
254 Smo Test flange	ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547

Dimensions of Test Flanges

The dimensions of 6B test flange and 6BX test flange depend on the size and pressure rating of the flange. Here are some commonly used dimensions for these types of test flanges:
For 6B test flange:

• Size range: 2″ to 20″;
• Pressure rating range: 5,000 psi to 20,000 psi;
• Bolt circle diameter: varies depending on size and pressure rating;
• Number of bolt holes: varies depending on size and pressure rating;
• Bolt size: varies depending on size and pressure rating;
• Hub diameter: varies depending on size and pressure rating;
• Overall height: varies depending on size and pressure rating.

For 6BX test flange:

• Size range: 2″ to 26″;
• Pressure rating range: 5,000 psi to 20,000 psi;
• Bolt circle diameter: varies depending on size and pressure rating;
• Number of bolt holes: varies depending on size and pressure rating;
• Bolt size: varies depending on size and pressure rating;
• Hub diameter: varies depending on size and pressure rating;
• Overall height: varies depending on size and pressure rating.

Manufacturing Process of Test Flanges

Test Flanges can be produced by forging, casting. We mainly produce flanges by forging, cutting and rolling processes. We will take you through the step-by-step process of manufacturing test flanges, from the materials used to the final product.

Step 1: Material Selection
The first step in our manufacturing process is material selection. We use only the highest quality materials, including carbon steel, stainless steel, and alloy steel. Each material has its own unique properties and is selected based on the specific needs of the customer.
Step 2: Cutting
Once the materials are selected, they are cut to the desired size using a cutting machine. We use state-of-the-art cutting machines to ensure precision and accuracy in every cut.
Step 3: Heating
After the materials are cut, they are heated to the desired temperature. This helps to reduce any stresses in the material and makes it easier to shape the flange.
Step 4: Forming
The next step in our manufacturing process is forming the flange. We use a hydraulic press to shape the heated material into the desired shape. This ensures that each flange is formed with precision and accuracy.
Step 5: Solid solution
Make the structure and composition of the blank flange uniform, which is particularly important for raw materials. At high temperatures, atomic activity intensifies, σ Phase dissolution, the chemical composition tends to be uniform, and a uniform single-phase structure is obtained after rapid cooling.
Eliminate work hardening to facilitate continuous cold work. The distorted lattice is recovered through solution treatment, the elongated and broken grains are recrystallized, the internal stress is eliminated, the tensile strength of stainless-steel forgings decreases, and the elongation increases.
Restore the inherent corrosion resistance of the flange blank. Due to carbide precipitation and lattice defects caused by cold working, the corrosion resistance of the flange blank is reduced. The corrosion resistance of forgings recovered to the best state after solution treatment.
Step 6: Machining
Once the flange is formed, it undergoes machining to ensure that it is smooth and free from any imperfections. We use CNC machines to achieve the highest level of accuracy in our machining process.
Step 7: Inspection
Before the flange is considered complete, it undergoes a thorough inspection process to ensure that it meets industry standards. Our team of experts inspects each flange to ensure that it is free from any defects and meets the specifications of the customer.
Step 8: Coating
Once the inspection process is complete, the flange is coated to protect it from corrosion and other environmental factors. We offer a variety of coating options, including epoxy, zinc, and galvanized coatings.
Step 9: Packaging and Delivery
Finally, the flange is packaged and prepared for delivery to the customer. We take great care in packaging our products to ensure that they arrive at their destination in pristine condition.
At Jihua, we take great pride in our manufacturing process of test flanges. We are committed to producing high-quality flanges that meet the needs of our customers. Contact us today to learn more about our products and services.

Marking of Test Flanges

The marking of test flanges is essential to their manufacture and use. The marking aims to provide information about the flange’s material, size, pressure rating, and other relevant details.
Test Flanges are typically marked by industry standards, such as ASME B16.5 or EN 1092-1. These standards specify the required information that must be included on the flange, as well as the format and location of the markings.
The required information typically includes the following:

• Flange size
• Pressure rating
• Material specification
• Tag number
• Manufacturer’s name or trademark
• Heat number or lot number
• Date of manufacture

The standard also specifies the location of the marking on the flange. Typically, the marking is placed on the raised face of the flange near the bolt holes. In some cases, the marking may be located on the flange hub or the plate itself.

Packing of Test Flanges

How to package test flanges? To pack the test flange, follow these steps:
When it comes to packaging test flanges, it’s important to ensure that they are properly protected and secured during transportation to prevent any damage. We will walk you through some of the key steps to follow when packaging test flanges.
Step 1: Clean and Inspect the Flanges
Before packaging the test flanges, it’s essential to clean them thoroughly to remove any dust, dirt, or debris that may have accumulated on them. You can use a cloth or brush to clean the flanges and inspect them to ensure they are free from any defects or damages.
Step 2: Choose the Right Packaging Material
The packaging material you choose should be sturdy and able to provide adequate protection to the flanges during transportation. Ideally, you should use a strong cardboard box or wooden crate that can withstand the weight and size of the test flanges.
Step 3: Secure the Flanges
Once you have the packaging material ready, you need to secure the flanges to prevent them from moving around or getting damaged during transit. You can use bubble wrap, foam, or any other suitable cushioning material to protect the test flanges from impact or shock.
Step 4: Label the Package
Labeling the package correctly is crucial to ensure that it reaches the intended destination without any confusion. You should clearly label the package with the recipient’s address, contact information, and any other necessary details.
Step 5: Arrange for Shipping
After the package is fully prepared and labeled, it’s time to arrange for shipping. You can use a reliable courier or shipping company to ensure that the package is delivered on time and in good condition.
Packaging test flanges requires careful planning and attention to detail. By following the above steps, you can ensure that your flanges are properly protected and arrive at their destination safely. Remember to use high-quality packaging materials, secure the test flanges properly, and label the package accurately to avoid any mishaps during transportation.

Inspection and Measurement of Test Flanges

There are several factors that need to be considered when inspecting and measuring test flanges, including:

Material
The first thing to inspect in a test flange is the material. The standard specifies that the flanges should be made from materials such as carbon steel, stainless steel, or alloy steel. The material should be free from any defects such as cracks, porosity, or inclusions that can affect the integrity of the flange.
Dimension
The next thing to inspect in a test flange is its dimension. The standard specifies the dimensions of the flanges based on their nominal size and pressure rating. The flanges should be inspected for their inside and outside diameter, thickness, and overall dimensions to ensure they meet the requirements of the standard.
Surface Finish
The surface finish of a flange is also important. The standard specifies that the flanges should have a smooth and even surface finish to ensure proper sealing of the gasket. Any roughness or irregularities on the surface of the flange can lead to leaks in the piping system.
Bolt Hole Alignment
The bolt holes in a flange should be aligned properly to ensure the bolts can be inserted and tightened correctly. The bolt holes should be inspected to ensure they are in the correct position and are not misaligned.
Bolt Hole Size
The size of the bolt holes is also important. The standard specifies the size of the bolt holes based on the nominal size and pressure rating of the flange. The bolt holes should be inspected to ensure they are the correct size and are not damaged.
Bolt Hole Thread
The threads in the bolt holes are important to ensure the bolts can be screwed in and tightened properly. The threads should be inspected to ensure they are clean and free from any damage or defects.

To inspect and measure test flanges, you will need a set of calipers or a micrometer to accurately measure the dimensions of the flange. It is also a good idea to have a torque wrench on hand to ensure that the bolts are tightened to the correct torque specification.

Maintenance and Care of Test Flanges

Proper maintenance and care of test flanges are essential to ensure their longevity and reliability. Some tips to consider include:

• Regular inspection: Test flanges should be inspected regularly for signs of wear, damage, or corrosion.
• Cleaning: Test flanges should be cleaned regularly to remove any debris or contaminants that may compromise their sealing ability.
• Lubrication: Test flanges should be lubricated regularly to ensure that the bolts can be tightened and loosened easily.
• Proper storage: Test flanges should be stored properly to prevent damage or corrosion.

Application of Test Flanges

Test flanges are commonly used in various applications that require pressure testing, leak testing, or hydrostatic testing. Some of the applications of test flanges are:

• Oil and gas industry: Test flanges are used in the oil and gas industry for pressure testing and leak testing of pipes, valves, and other equipment. They are also used in well testing and completion operations.

• Chemical industry: Test flanges are used in the chemical industry for pressure testing and leak testing of pipelines, reactors, vessels, and other equipment that handle hazardous and corrosive materials.

• Water treatment plants: Test flanges are used in water treatment plants for hydrostatic testing of pipelines and valves to ensure their integrity and safety.

• Power generation plants: Test flanges are used in power generation plants for pressure testing of pipes, valves, and other equipment that handle steam, water, or other fluids.

• Aerospace industry: Test flanges are used in the aerospace industry for pressure testing and leak testing of fuel lines, hydraulic systems, and other components that require high levels of reliability and safety.

• Manufacturing industry: Test flanges are used in the manufacturing industry for pressure testing and leak testing of pressure vessels, heat exchangers, boilers, and other equipment that require compliance with industry standards and regulations.

How to purchase the correct test flanges?

Are you in the market for test flanges but don’t know where to start? Don’t worry, you’re not alone. With so many options available, it can be overwhelming to choose the right flanges for your project. We’ll go over some key factors to consider when purchasing test flanges to ensure that you make the right decision.
Determine the Material Needed
The first step to purchasing the correct test flanges is to determine the material you need. These flanges are available in a variety of materials, including carbon steel, stainless steel, and alloy steel. The choice of material will depend on the specific application and environmental conditions. If you’re unsure which material to choose, consult with a qualified engineer or supplier to help guide you in making the right decision.
Identify the Flange Face Type
Flange face types refer to the surface finish of a flange, and there are many different types of flange face finishes, including flat face (FF), raised face (RF), ring-type joint (SO), tongue and groove (T&G), male and female face (M&F). Each type of flange face has its unique characteristics and is suitable for different applications.

• Flat face (FF): This type of flange face has a flat, smooth surface that is perpendicular to the axis of the pipe. It is typically used for low-pressure applications and when the sealing is achieved by a gasket.
• Raised face (RF): This type of flange face has a raised ring on the surface that surrounds the bolt holes. The ring provides a surface for the gasket to rest on, which helps to create a better seal. It is commonly used in applications with moderate pressure.
• Ring joint face (RTJ): This type of flange face has a specially designed groove to accommodate a metallic ring gasket. The groove is cut into the surface of the flange, and the gasket sits in the groove to create a tight seal. This type of flange face is typically used in high-pressure applications.
• Tongue and groove face (T&G): This type of flange face has a raised tongue on one flange and a matching groove on the other flange. The tongue fits into the groove, creating a tight seal without the need for a gasket. This type of flange face is often used in applications where high pressure and temperature are involved.
• Male and Female Face (M&F): This type of flange face is similar to the tongue and groove face. However, it has a male and female end which creates a face to face contact between two flanges. This type of flange is mainly used for low pressure and low temperature applications.

To identify a specific flange face type, you need to provide me with more information, such as the flange’s application, dimensions, and material.
Determine the Test flange Size and Pressure Class
Once you have identified the material and test flange type, the next step is to determine the size and pressure class of the test flange. test flanges are available in various sizes and pressure ratings, and it’s crucial to select the correct size and pressure class to ensure that the flange can withstand the intended operating conditions. You should consult the system specifications and design to determine the appropriate size and pressure class.
Look for Quality and Certifications
It’s essential to ensure that the test flanges you purchase are of high quality and come with the necessary certifications. Look for suppliers that have a reputation for delivering high-quality products, and check for relevant certifications, such as ISO 9001, API, and CE, to ensure that the flanges meet industry standards.
Consider the Price
While the price should not be the only factor to consider when purchasing test flanges, it’s important to compare prices from different suppliers to ensure that you’re getting a fair price. However, remember that the cheapest option may not always be the best quality, so ensure that you’re not compromising on quality in pursuit of lower costs.
Purchasing the correct test flanges can be challenging, but by considering the factors outlined in this post, you can ensure that you make an informed decision that meets your project requirements. Remember to consult with experts and compare suppliers to ensure that you’re getting a high-quality product at a fair price.

How to select test flanges manufacturer?

Selecting the right manufacturer for test flanges can be a daunting task. With so many options available, it’s easy to get overwhelmed and make the wrong choice. However, choosing the right manufacturer is critical to ensure that you get the best quality flanges that meet your specific needs. We provide some tips to help you select the right test flanges manufacturer.
Quality of Products
The first factor to consider when selecting a test flanges manufacturer is the quality of their products. You should look for a manufacturer that uses high-quality materials and follows strict quality control processes to ensure that their products meet the required standards.
Industry Experience
Another factor to consider is the manufacturer’s industry experience. Look for a manufacturer that has been in the industry for a significant period and has a proven track record of delivering high-quality products to their customers. An experienced manufacturer will have a better understanding of the market and the needs of their customers.
Production Capacity
It is also essential to consider the production capacity of the manufacturer. You should look for a manufacturer that has the capacity to produce the required quantity of flanges in a timely manner to meet your project’s needs.
Pricing
Pricing is another crucial factor to consider when selecting a test flanges manufacturer. While it is essential to look for a manufacturer that offers competitive pricing, it is equally important to consider the quality of their products. Don’t compromise on the quality of the products for the sake of saving a few dollars.
Customer Service
The final factor to consider is the manufacturer’s customer service. Look for a manufacturer that has excellent customer service and is willing to assist you with any queries or concerns you may have. A manufacturer that values their customers will provide a better overall experience.

Choosing the right test flanges manufacturer is essential to ensure you get high-quality products that meet your needs. Look for a manufacturer with quality certifications, experience, a good reputation, customization capabilities, and a competitive price. By following these tips, you will be able to find the right manufacturer for your flange needs.

Why Choose Jihua to Be Your Test Flange Supplier?

Jihua is a well-established and reputable manufacturer and supplier of test flanges that has been providing high-quality products to customers worldwide for many years. Here are some reasons why you might choose Jihua to be your test flange supplier:

• High-quality products: Jihua is committed to providing high-quality test flanges made from the best materials and manufactured to the highest standards. The company has strict quality control procedures in place to ensure that each product meets or exceeds customer expectations.
• Competitive pricing: Jihua offers competitive pricing on its products, which means you can get high-quality test flanges at an affordable price.
• Wide range of products: Jihua offers a wide range of test flanges, including ANSI, DIN, JIS, EN, and other international standards. This means you can find the right product to meet your specific needs.
• Excellent customer service: Jihua is committed to providing excellent customer service and support to all of its customers. The company has a team of experienced professionals who are available to answer any questions or concerns you may have.
• Fast delivery: Jihua understands the importance of timely delivery and works hard to ensure that all orders are shipped out quickly and efficiently.

Jihua is a reliable and trustworthy supplier of test flanges that can meet your needs and exceed your expectations.

Export Country For Test Flanges

MIDDLE EAST	AFRICA	NORTH AMERICA	EUROPE	ASIA	SOUTH AMERICA
Saudi Arabia	Nigeria	Usa	Russia	India	Argentina
Iran	Algeria	Canada	Norway	Singapore	Bolivia
Iraq	Angola	Mexico	Germany	Malaysia	Brazil
Uae	South Africa	Panama	France	Indonesia	Chile
Qatar	Libya	Costa Rica	Italy	Thailand	Venezuela
Bahrain	Egypt	Puerto Rica	Uk	Vietnam	Colombia
Oman	Sudan	Trinidad And Tobago	Spain	South Korea	Ecuador
Kuwait	Equatorial Guinea	Jamaica	Ukraine	Japan	Guyana
Turkey	The Republic Of Congo	Bahamas	Netherland	Sri Lanka	Paraguay
Yemen	Gabon	Denmark	Belgium	Maldives	Uruguay
Syria			Greece	Bangladesh
Jordan			Czech Republic	Mayanmar
Cyprus			Portugal	Taiwan
			Hungary	Cambodia
			Albania
			Austria
			Switzerland
			Slovakia
			Finland
			Ireland
			Croatia
			Slovenia
			Malta