Author: HF Valves

  • Top 10 Butterfly Valve Manufactures Worldwide

    Top 10 Butterfly Valve Manufactures Worldwide

    Butterfly valve is a type of quarter-turn valve to regulate the flow. It operates by rotating a disc that mounted on a rod. The disc blocks the flow while the valve is fully closed.  When it is fully opened, the disc rotates a quarter turn so that the fluid can pass through. The butterfly valve market is competitive and features several prominent manufacturers. Here we list 10 well-known butterfly valve manufacturers in the world. They are known for their quality, innovation, and market presence:

    1. Emerson Electric Co. (Fisher and Keystone)

    • Headquarters: Louis, Missouri, USA
    • Set up in 1890, Emerson is a global leader in technology and engineering by providing high-performance butterfly valves  under its Fisher and Keystone brands. The valves play a crucial role in industries such as oil and gas, chemical, and water treatment.

    2. Flowserve Corporation

    • Headquarters: Irving, Texas, USA
    • Founded in 1997, Flowserve is one of the largest manufacturers of pumps, valves, seals, and automation systems. Their butterfly valves are known for durability and performance in demanding environments like power generation, water resources, and chemical processing.

    3. Pentair Valves & Controls (previously Tyco International)

    • Headquarters: London, UK
    • Founded in 1966  (as Tyco International, merged with Pentair in 2012), Pentair offers a wide range of butterfly valves under brands like Keystone, focusing on reliable valve solutions for water treatment, and infrastructure applications.

    4. KSB SE & Co. KGaA

    • Headquarters: Frankenthal, Germany
    • KSB is a leading supplier of pumps, valves, and related systems.  Widely used in water treatment, building services, energy, and industrial applications due to the precision engineering and reliability.

    5. Bray International, Inc.

    • Headquarters: Houston, Texas, USA
    • Founded in 1986, Bray specializes in flow control and automation products, including innovative and high-performance butterfly valves. Widely used in oil and gas, water and wastewater, and power industries.

    6. AVK Group

    • Headquarters:  Galten, Denmark
    • Founded in 1941, AVK Group is also a global manufacturer of valves, hydrants, and accessories for water and gas distribution, sewage treatment, fire safe. Their butterfly valves are famous for high quality and reliability.

    7. Crane Co.

    • Headquarters: Stamford, Connecticut, USA
    • Founded in 1855, Crane Co. produces a wide range of industrial products including butterfly valves. Known for their robust design  with Crane ChemPharma & Energy brand.

    8. Velan Inc.

    • Headquarters: Montreal, Canada
    • Founded in 1950, Velan is a global leader in the design and manufacture of industrial valves, including high-performance butterfly valves. They also serve various industries, including power generation, oil and gas, and petrochemicals.

    9. Danfoss A/S

    • Headquarters: Nordborg, Denmark
    • Founded in 1933,  Danfoss is a global leader in energy-efficient solutions. It offers a range of butterfly valves widely used in HVAC, industrial refrigeration, and water management applications.

    10. Neles Corporation

    • Headquarters: Vantaa, Finland
    • Founded in 1956 (originally part of Metso, became Neles in 2020), Neles specializes in flow control solutions and services for process industries, including oil and gas, pulp and paper, and chemicals. Moreover,their butterfly valves are known for reliability and efficiency.

    Conclusion

    These butterfly valve manufacturers are leaders in the industry due to their extensive product ranges, commitment to quality, and strong global presence. Their butterfly valves play a crucial role  in various applications, like water treatment , chemical processing ,oil and gas ,power plant.  Beside, continuously innovation makes these companies remain at the forefront of meeting the diverse industry needs .

    However, with the rapidly growing due to increasing industrialization and infrastructure development. Chinese butterfly valve manufacturers are also enhancing their technological capabilities and quality standards to meet needs globally. The market is characterized by competitive pricing and expanding domestic and international demand, thus positioning China as a significant player in the global butterfly valve market.

     

  • Main cover connection methods for forged gate valve

    Main cover connection methods for forged gate valve

    There are three main types of cover connection methods for forged steel gate and globe valves. What are they and how to choose the best method. Today we are will introduce  some of main cover connection methods to help you better understand the secret of valves.

              1. Bolted:  The valve body is connected to the valve cover by bolts,  It offers:

    • Easy disassembly: Ideal for frequent maintenance and inspection.
    • Cost-effective: Simpler design and maintenance process.

    2. Welded: This method creates a permanent seal between the body and cover. It’s suitable for:

    • High-pressure applications: Ensures no leaks even under demanding conditions.
    • Safety-critical systems: Eliminates the risk of leakage in sensitive applications.

    3. Pressure-sealed: This design uses screws to hold the body and cover together, but the sealing is achieved by a compressible gasket that responds to internal pressure. It provides:

    • Balance between maintenance and sealing: Easier disassembly than welded, with good sealing performance.
    • Pressure-assisted sealing: Seal improves as internal pressure rises, beneficial for globe valves.

    The best choice for application will depend on factors like pressure rating, desired level of maintenance access, and budget:

    • Pressure Rating: For high pressures (as specified by the manufacturer), a welded connection is essential for safety and leak prevention. Bolted or pressure-sealed might not be sufficient.
    • Maintenance Needs:  bolted connection allows for easier disassembly if frequent maintenance required . For applications with minimal disassembly needs, welded or pressure-sealed is better.
    • Budget: Welded connections are generally more expensive due to complex manufacturing and specialized maintenance needs. Bolted connections are most cost-effective. Pressure-sealed falls somewhere in between.
    • Specific industries might have regulations regarding valve cover connections. Ensure your choice complies with any relevant standards. Larger valves might benefit from bolted connections for easier handling during maintenance. Consult the manufacturer’s specifications for their recommendations on the appropriate cover connection method based on the valve’s pressure rating and design
  • Fully Welded Ball Valve

    Fully Welded Ball Valve

    Product

    Fully Welded Ball Valve

    Specification

    Nominal diameter

    2″ – 48″ (DN 50-DN 1200)

    Pressure range

    CLASS 150 – CLASS 2500 (Mpa 1.6- Mpa 42.0)

    Materials

    A105, LF2, F316, F11, F304, F316

    Design standard

    API 6D, API 608, API598, ASME B16.34, ISO 17292, BS5351

    Connection ends

    BW、SW

    Flange Dimension Standards

    ASME B 16.5, ASME B16.47, ASME B16.25, ASME B16.11

    Operation

    Manual、Pneumatic、Electric、Gas-liquid interaction etc. 

    Temperature

    -196℃-540℃

    Pressure Test Standards

    API598 , API 6D , BS12569

    Application

    Petroleum、Natural gas、Chemical、petrochemical、Power plant、Metallurgy、Papermaking etc. 

    Features:

    1. It is made of carbon steel seamless steel pipe pressed and formed integral welded ball valve, which can withstand frequent operation in the presence of impurities and chemicals, and has a long service life.
    2. The valve is compact, lightweight,extension stem also easy to keep warm and install.
    3. Adopts carbon-strengthened PTFE inclined elastic sealing ring with negative pressure on the spherical surface, zero leakage and long service life.
    4. The stem uses two “O” rings, allowing the stem to rotate freely and seal tightly.
  • Top Entry Ball Valve

    Top Entry Ball Valve

    Product

    Top Entry Ball Valve

    Top entry ball valve is a rotary switch valve that controls the on/off of the medium by rotating the ball. The 90-degree rotation of the sphere allows the medium to pass through or close the channel inside the sphere, thus achieving the control of the medium.

    Specification

    Nominal diameter

    1/2″ – 60″ (DN15- DN 1500)

    Pressure range

    CLASS 150 – CLASS 2500 (Mpa 1.6- Mpa 42.0)

    Materials

    Carbon Steel, Stainless Steell, Duplex, Super Duplex, Inconel

    Design standard

    API 6D, API 608, API598, ASME B16.34, ISO 17292, BS5351  

    Connection ends

    RF、RTJ、BW、SW

    Flange Dimension Standards

    ASME B 16.5, ASME B16.47, ASME B16.25, ASME B16.11

    Operation

    Manual、Pneumatic、Electric、Gas-liquid interaction etc. 

    Temperature

    -196℃-540℃

    Pressure Test Standards

    API598 , API 6D , BS12569

    Application

    Oil and gas、Chemical、petrochemical、Power plant、Metallurgy、Papermaking etc. 

    Features:

    1. Top entry ball valve is valve Installing ball into valve body by the upper for repairing conveniently.
    2. Top entry ball valve adopts elastic interface structure, which can adapt to different deviations of the pipeline, and increase the tightness and life of the valve.
    3. The valve stem adopts self-sealing structure to improves the reliability and tightness.
    4. It can be made of different materials, and is suitable for use in various media, pressure and environments.
  • Forged Steel Trunnion Mounted Ball Valve

    Forged Steel Trunnion Mounted Ball Valve

    Product

    Forged Steel Trunnion Mounted Ball Valve

    Specification:

    Nominal diameter

    2″ – 48″ (DN 50-DN 1200)

    Pressure range

    CLASS 150 – CLASS 900 (Mpa 1.6- Mpa 15.0)

    Materials

    A105、LF2, F316, F11, F304, F316, F51 , F55;

    Design standard

    API6D、ASME B16.34、BS5351、ISO17292、DIN

    Connection ends

    RF、RTJ、BW、NPT、SW

    Operation

    Manual、Pneumatic、Electric、Gas-liquid interaction etc. 

    Temperature

    -196℃-540℃

    Pressure Test

    API598 API 6D、  BS12569

    Application

    Oil and gas、Natural gas、Chemical、petrochemical、Power plant、Metallurgy、Papermaking etc. 

    Main Parts Material:

    Body

    A105

    A105

    F304, F304L

    F316, F316L

    LF2, LF1

    Ball

    A105+ENP/HCr,

    F6a+HCr

    A105+ENP,

    F6a+ENP

    F304, F304L+HCr

    F316, F316L+HCr

    F304+HCr

    Stem

    A105+ENP,

    A182 F6a

    A105+ENP,

    4140+ENP

    F304, F304L

    F316, F316L

    F304

    Gland

    A105+ENP

    A105+ENP

    F304, F304L

    F316, F316L

    F304

    Seat

    PTFE/RPTFE,   NYLON, PPL, PEEK, EPDM, VITON,DEVLON

    Packing

    PTFE, PPL, GRAPHITE

    Gasket

    PTFE, PPL, GRAPHITE

    Stud

    A193-B7

    A193-B7M

    A193-B8/B8M

    A193-B8/B8M

    A320-L7/L7M

    Nut

    A194-2H

    A194-2HM

    A194-8/8M

    A194-8/8M

    A194-7/7M

     

    Features:


    1. It is suitable for high temperature and high pressure corrosion resistant environment
    2. Anti-static setting. Thereby ensuring the safety and stability of industrial production.
    3. The surface of the ball and the sealing surface of the valve seat are tightly connected to ensure a good sealing effect
    4. Movable metal seat structure with leaf spring preload, easy to open and close.
  • Forged Steel Floating Ball Valve

    Forged Steel Floating Ball Valve

    Product

    Forged Steel Floating Ball Valve

    Specification

    BodyA105A105F304, F304LF316, F316LLF2, LF1
    BallA105+ENP/HCrA105+ENPF304, F304L+HCrF316, F316L+HCrF304+HCr
    Stem

    A105+ENP/

    A182 F6a

    A105+ENP/

    4140+ENP

    F304, F304LF316, F316LF304
    SeatPTFE/RPTFE , NYLON, PPL , PEEK, EPDM, VITON,DEVLON
    PackingPTFE, PPL, GRAPHITE
    GasketPTFE, PPL, GRAPHITE
    StudA193-B7A193-B7MA193-B8/B8MA193-B8/B8MA320-L7/L7M
    NutA194-2HA194-2HMA194-8/8MA194-8/8MA194-7/7M

    Main Parts Material:

    Body

    A105

    A105

    F304, F304L

    F316, F316L

    LF2, LF1

    Ball

    A105+ENP/HCr

    A105+ENP

    F304, F304L+HCr

    F316, F316L+HCr

    F304+HCr

    Stem

    A105+ENP/

    A182 F6a

    A105+ENP/

    4140+ENP

    F304, F304L

    F316, F316L

    F304

    Seat

    PTFE/RPTFE , NYLON, PPL , PEEK, EPDM, VITON,DEVLON

    Packing

    PTFE, PPL, GRAPHITE

    Gasket

    PTFE, PPL, GRAPHITE

    Stud

    A193-B7

    A193-B7M

    A193-B8/B8M

    A193-B8/B8M

    A320-L7/L7M

    Nut

    A194-2H

    A194-2HM

    A194-8/8M

    A194-8/8M

    A194-7/7M

    Features:

    1. Corrosion-resistant, pressure-bearing capacity
    2. Automatic adjustment of tightness, stable and reliable
    3. It is suitable for high temperature and high pressure, strong corrosion conditions, and has a long life.
    4. Comply with API, CE, ISO and other related standards, high security and stability
  • Cast Steel Trunnion Mounted Ball Valve

    Cast Steel Trunnion Mounted Ball Valve

    Product

    Cast Steel Trunnion Mounted Ball Valve

    Cast Steel Trunnion Mounted Ball Valve is suitable for long-distance pipelines and general industrial pipelines, and its strength, safety, harsh environmental resistance, etc., suitable for various corrosive and non-corrosive media. The fixed ball valve has small torque, small seat deformation, stable sealing performance and long service life, and is suitable for high-pressure and large-diameter occasions.

    Main Parts Material:

    Nominal diameter

    2″ – 48″ (DN 50-DN 1200)

    Pressure range

    CLASS 150 – CLASS 900

    Design standard

    API6D、ASME B16.34、BS5351、ISO17292、DIN

    Connection ends

    RF、RTJ BW、NPT、SW

    Bore

    Full Bore, Reduced Bore

    Materials

    WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M

    Operation

    Manual、Pneumatic、Electric、Gas-liquid interaction etc. 

    Temperature

    -196℃-540℃

    Pressure Test

    API598 API 6D BS12569

    Application

    Petroleum、Natural gas、Chemical、petrochemical、Power station、Metallurgy、Papermaking etc. 

     

    Features:

    1. The valve seat adopts spring structure, which has good low-pressure sealing performance.
    2. Bi-directional sealing characteristic, using the built-in discharge valve, the cavity of the valve body can be discharged outward.
    3. The valve shaft adopts anti-blowout protection structure, low friction coefficient bearing, etc. It has excellent performance and high reliability.
  • Cast Steel Floating Ball Valve

    Cast Steel Floating Ball Valve

    Product

    Cast Steel Floating Ball Valve

    The ball of the floating ball valve is floating, and under the action of medium pressure, the ball can produce a certain displacement and press on the sealing surface of the outlet section. Simple structure, compact design, good sealing performance, sealing surface and ball valve are often in a closed state, not easy to be eroded by the medium, suitable for general industrial media such as water, solvents, acid and natural gas, and also suitable for media with relatively poor working conditions, such as oxygen, hydrogen peroxide, methane and ethylene and other media. Floating ball valves mainly include cast steel two-piece floating ball valves, forged steel two-piece floating ball valves, forged steel three-piece ball valves and one-piece cast floating ball valves.

    Specification

    Nominal diameter

    1/2″ – 8″ (DN 15-DN 200)

    Pressure range

    CLASS 150 – CLASS 600

    Design standard

    API6D、ASME B16.34、BS5351、ISO17292、DIN

    Connection ends

    RF、RTJ、BW、NPT、SW

    Operation

    Manual、Pneumatic、Electric、Gas-liquid interaction etc.

    Bore

    Full Bore, Reduced Bore

    Material

    WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M

    Temperature

    -196℃-540℃

    Pressure Test

    API598 API 6D BS12569

    Application

    Petroleum、Natural gas、Chemical、petrochemical、Power station、Metallurgy、Papermaking etc.

    Features:

    1. Simple structure, easy operation and easy maintenance
    2. Low fluid resistance and large flow regulation range
    3. Good sealing and strong corrosion resistance
    4. Wide range of application and long service life
  • Unfolding the Magic of Butterfly Valves: Streamlining Fluid Control

    Unfolding the Magic of Butterfly Valves: Streamlining Fluid Control

    Unfolding the Magic of Butterfly Valves: Streamlining Fluid Control

    In the world of industrial fluid control, efficiency is key. Whether it’s in the realm of oil and gas, water treatment, HVAC systems, or countless other applications, the ability to regulate the flow of liquids or gases with precision is paramount. One of the unsung heroes in this domain is the butterfly valve, a piece of engineering ingenuity that plays a significant role in streamlining fluid control.

    Butterfly valves are often overshadowed by their more famous counterparts, such as ball valves or gate valves. However, what they lack in recognition, they make up for in versatility, efficiency, and cost-effectiveness. In this blog post, we’ll unfold the magic of butterfly valves and explore how they contribute to streamlining fluid control across various industries.

    The Basics: What Is a Butterfly Valve?

    To understand the magic of butterfly valves, let’s begin with the basics. A butterfly valves is a quarter-turn valve that is typically used to regulate the flow of fluids (liquid or gas) through a pipe. It consists of a disc, often called the “butterfly,” that is mounted on a rod. When the valve is fully open, the disc is positioned perpendicular to the flow of the fluid, allowing for unrestricted flow. When the valve is closed, the disc rotates 90 degrees to a position parallel to the flow, blocking it entirely.
    The simplicity of this design is part of what makes These valves so efficient and cost-effective. Their quarter-turn operation allows for quick and easy control of flow, making them ideal for applications where on-off control and regulation of flow are essential.

    Advantages of Butterfly Valves

    Now, let’s delve into the magic of butterfly valves by exploring their numerous advantages:
    1. Quick and Easy Operation:
    The quarter-turn design of butterfly valves enables rapid opening and closing, making them ideal for applications where fast response times are essential.
    2. Cost-Effective:
    These valves are generally more affordable than other valve types, making them a cost-effective choice for many industries.
    3. Compact Design:
    Their compact and lightweight design is a significant advantage when space is limited.
    4. Low Pressure Drop:
    These valves offer low-pressure drops when fully open, which is vital in applications where energy efficiency is a concern.
    5. Minimal Maintenance:
    The simplicity of their design translates to less maintenance and fewer moving parts, reducing the likelihood of failure.
    6. Versatility:
    Butterfly valves can be used for a wide range of fluids, including water, oil, gas, and chemicals.
    7. Bubble-Tight Sealing:
    Triple offset butterfly valves provide an exceptional sealing capability, ensuring no leakage in critical applications.

    Applications of Butterfly Valves

    The versatility of butterfly valves lends itself to a broad spectrum of applications, including:
    1. Water and Wastewater Treatment:
    These valves are commonly used in water treatment plants to control the flow of water, chemicals, and sludge.
    2. Oil and Gas Industry:
    High-performance butterfly valves are crucial in the oil and gas sector for applications involving crude oil, natural gas, and refined products.
    3. Power Generation:
    These valves help control the flow of cooling water, steam, and other fluids in power plants.
    4. Chemical Processing:
    These valves are used for handling chemicals, acids, and corrosive materials.
    5. HVAC Systems:
    In heating, ventilation, and air conditioning systems, butterfly dampers regulate air and gas flow.
    6. Food and Beverage Industry:
    The sanitary design of butterfly valves makes them suitable for food and beverage processing.

    Conclusion

    In the realm of fluid control, butterfly valves quietly work their magic, ensuring the efficient and precise regulation of liquids and gases. Their simplicity, cost-effectiveness, and versatility make them indispensable in a wide range of industries. As we’ve unfolded the magic of butterfly valves, it becomes clear that these unassuming devices play a pivotal role in streamlining fluid control processes, contributing to improved efficiency and reliability across the board. Whether in the water treatment plant, the oil refinery, or the HVAC system, the butterfly valve silently but effectively keeps the flow in check.

    Welcome to our valve company! We are a leading provider of high-quality valves and valve solutions for various industries.

    Get in touch
    Follow us
    Address

    Xian Hengfeng Electromechanical Equipment Co.,Ltd
    No.15,group 3,Sanlian Village,Dazhao Street Office,Chang’an District,Xi’an City, Shaanxi Province

    Hk Agent: Gracebao Steel Manufacturing Co.,Ltd
    15/F, Lucky Center No.165-171,Wanchai Road,Wan Chai,Hongkong

  • Wafer Type Centerline Butterfly Valve

    Wafer Type Centerline Butterfly Valve

    Product

    Wafer Type Centerline Butterfly Valve

    Specification

    Size: NPS 2”-8”
    Pressure: 150LB
    Body Materials: Cast Iron/Ductile Iron
    Seat Materials: EPDM / NBR/ VITON / PTFE
    Design: API 609, MSS SP-67
    Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
    Pressure Test: API 598
    Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
    Top Flange: ISO5211
    Suitable Medium: air, Sewage, steam, gas, oil, etc

    Main Parts Material:

    Part

    Material

    Body

    WCB,QT450

    Disc

    WCB,QT450

    Shaft

    2Cr13

    O ring

    EPDM / NBR/ VITON / PTFE

    Packing

    Flexible graphite

    Features:

    1. Simple and compact structure, small and lightweight, easy to transport, install and disassemble.
    2. 90 degree switch, fast switching. Low operating torque, low labor save.
    3. Good sealing performance, long life, can achieve zero leakage.
    4. Select different parts materials, suitable for various media.
    5. The flow characteristics are similar to the straight line, and the adjustment performance is good.