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What Are the Differences Between Flanged Globe Valves and Threaded Globe Valves?
What Are the Differences Between Flanged Globe Valves and Threaded Globe Valves?
2025-10-31

If you’ve ever hesitated between choosing a flanged or threaded globe valve, you’re not alone. Globe valves are common shut-off valves widely used in industries such as oil and gas, chemical processing, power generation, shipbuilding, and water treatment. While both connection types can control fluid flow, they differ significantly in terms of installation method, sealing performance, and suitable applications. This article will provide a systematic comparison of flanged and threaded globe valves from the perspectives of structure, performance, and application.   I. Fundamental Difference in Connection Methods   1.Flanged Globe Valve A flanged globe valve connects to the pipeline through flanges, with bolts tightening the flange faces together to ensure a secure seal.This connection type offers excellent strength and reliability, making it ideal for medium to high-pressure, large-diameter, and frequently operated systems.In industrial applications, typical sizes range from DN50 to DN300, and flange dimensions generally follow international standards such as ANSI, DIN, or JIS.   2. Threaded Globe ValveA threaded globe valve typically uses either internal (NPT/BSP) or external threads to connect to the pipeline, relying on the threads themselves for sealing.This compact and lightweight structure allows for easy installation and is mainly used in small-diameter (usually ≤ DN50) and low-pressure systems, including residential pipelines.Because it does not require welding or flange gaskets, a threaded valve is more cost-effective in both installation and maintenance.     II. Comparison of Sealing Performance and Maintenance   Flanged Globe ValveFlanged globe valves typically use metal or flexible graphite gaskets for sealing, offering excellent resistance to high temperature, high pressure, and corrosion.During long-term operation, maintenance or valve replacement is straightforward—simply loosen the flange bolts to disassemble the valve.   Threaded Globe ValveThe sealing of a threaded globe valve mainly depends on the thread engagement and sealing materials such as PTFE tape or sealing paste.However, repeated disassembly can damage the threads and increase the risk of leakage.For this reason, threaded globe valves are better suited for fixed installations, clean fluids, and low-pressure systems.     III. Structural Dimensions and Installation Requirements   Flanged Globe ValveFlanged globe valves are larger in size and require more installation space, but they provide superior vibration resistance and pressure tolerance.They are commonly used in industrial piping networks or pump station systems where sufficient structural support is available.   Threaded Globe ValveThreaded globe valves feature a compact design, making them ideal for confined spaces or lightweight piping systems such as laboratories, compressor inlets and outlets, and domestic water supply lines.However, thr...

Valve Market 2025: Smart Upgrades and Infrastructure Investment Drive Global Growth
Valve Market 2025: Smart Upgrades and Infrastructure Investment Drive Global Growth
2025-10-24

The global industrial valve market is undergoing a quiet yet significant transformation. Growth is no longer driven mainly by new construction projects — instead, it’s increasingly fueled by the replacement and modernization of aging equipment and infrastructure. From petrochemical plants to municipal water systems and natural gas pipelines, valve upgrades have become a key priority across industries.   Aging Equipment Drives Rising Valve Replacement Demand   In many industrial facilities, valves—though seemingly durable—gradually suffer from seal wear, sluggish operation, and leakage after years of service. For plants operating over a decade, valve degradation has become a major factor affecting safety and efficiency.   With stronger focus on maintenance, process safety, and energy efficiency, end users in oil & gas, power, and water treatment sectors are accelerating valve replacement and upgrade projects. This trend aligns with a global shift toward predictive maintenance and sustainable operations, increasing demand for ball valves, gate valves, and control valves.   Market research from Mordor Intelligence and others shows a shorter valve replacement cycle due to rising maintenance costs and downtime risks. Stricter environmental and safety standards are also pushing faster modernization worldwide. In the U.S., for example, the water sector—with pipelines averaging over 40 years old—is investing in large-scale valve renewal programs to reduce leakage and unplanned shutdowns. Similar initiatives are emerging across Europe and Asia.   Infrastructure Investment Fuels Market Expansion   Beyond replacements, ongoing infrastructure investment continues to drive valve demand globally. Asia’s rapid industrial growth and the Middle East’s refining and petrochemical expansion have led to increased valve procurement.   According to GMI Insights, the global industrial valve market reached USD 75.9 billion in 2024 and is projected to hit USD 142.6 billion by 2034 (CAGR: 6.6%). Precedence Research forecasts even higher potential—up to 12.5% CAGR.   This growth is backed by large-scale upgrades in urban water networks, wastewater treatment plants, natural gas pipelines, and energy transition projects such as hydrogen and carbon capture systems, all requiring next-generation high-performance valves.   Valve Replacement Becomes a Smart Technology Upgrade   Modern valves are evolving beyond mechanical parts. With smart manufacturing and the Industrial Internet of Things (IIoT), today’s valves feature sensors, smart actuators, and remote monitoring. Engineers can now track performance in real time and conduct predictive maintenance, reducing unexpected downtime.   Advanced materials like corrosion-resistant alloys, cryogenic steels, and special polymers are extending service life and reliability—especially in harsh environments. For indu...

Top 10 Chinese Valve Manufacturers Selected for 2025
Top 10 Chinese Valve Manufacturers Selected for 2025
2025-09-30

Based on publicly available industry data, company websites, and authoritative rankings in 2025, this article selects ten Chinese valve manufacturers that are representative in terms of technology, production capacity, qualifications, and market performance. The ranking emphasizes overall corporate capability and market influence, aiming to provide a reference for procurement and engineering selection.   Suzhou Neway Valve Co., Ltd. (Brand: NEWAY) Neway is one of the few domestic valve manufacturers capable of serving high-end applications such as deep-sea, LNG, and nuclear power. The company possesses comprehensive technology and international certifications, with outstanding production capacity and project support capabilities. It holds a significant share in large-scale projects and export markets, making it a representative of leading domestic valve enterprises.     DERVOS VALVE (Brand: DERVOS VALVE) DERVOSVALVE' s product line covers a full range of valves, including ball valves, butterfly valves, gate valves, globe valves, and check valves. The company holds comprehensive technology and international certifications, ensuring its products meet the requirements of various operating conditions and markets. With in-house manufacturing capabilities and first-class supply strength, DERVOS VALVE can offer customers excellent delivery speed and consistent quality assurance. The company supports orders starting from a single unit (MOQ≧1) and provides one-stop services from inquiry and quality inspection to final delivery.     Lianggu Valve Group Co., Ltd. (Brand: Lianggu) Lianggu specializes in forging, casting, and CNC machining, offering a comprehensive range of valve specifications across multiple manufacturing sites and its own casting and forging facilities. The company is well-suited for mid-to-high-end engineering projects and maintains stable clients and standardized capabilities in sectors such as nuclear power and petrochemicals.     CNNC Suzhou Valve Technology & Industrial Co., Ltd. (Brand: CNNC Su Valve) CNNC Su Valve originates from the state-owned system and has long been responsible for supplying valves for nuclear power and major engineering projects. Its qualifications and testing capabilities are among the industry' s leading standards. The company possesses irreplaceable engineering experience in high-integrity and specialty valves.     Suzhou Dawson Drilling & Production Equipment Co., Ltd. Founded in 2006, the company primarily manufactures oil and gas drilling and production equipment as well as valve products. Its products are widely used in the energy sector, including oil and natural gas. With strong R&D and manufacturing capabilities, Dawson maintains a stable position in both the drilling equipment and industrial valve markets.   Zhejiang KCM Valve Co., Ltd. (KCM Valve) KCM Valve has long focused on the research and manufacturing of marine valves. Its products ...

API609 PFA Lined Butterfly Valve LUG FF 20”150LB
加载中...

API609 PFA Lined Butterfly Valve LUG FF 20”150LB

This 20 inch butterfly valve is plastic lined type one. Its PFA lined disc and its PTFE seat ring enable it a excellent corrosion resistant performance. With a gearbox, it is easy to drive.

  • Payment:

    30% when order confirmed, 70% before shipment
  • Product Origin:

    China
  • Color:

    Customization
  • Shipping Port:

    Shanghai, China
  • Lead Time:

    30~60 days Ex Works after order confirmation
  • Material:

    A216 WCB
  • Method of Operation:

    Gearbox
Inquiry now
Product Detail

Quick Detail

Type

Butterfly Valve

Nominal Diameter

20'

Nominal Pressure

150LB

Construction

Flat Flange

Connection

Lug Type;

Operation

Gearbox

Design & Manufacture

API609

End to End Dimension

ASME B16.10

Flange Dimension

ASME B16.5

Body Material

A216 WCB

Disc Material

SS2205+PFA

Media

W.O.G


Features

--Substantial PFA liners for 3" through 12" and PTFE liners for 14" through 24"

Well resistance to permeation leading to extension of product life and operator safety

 

--Low torque. Smaller operators taking up less space, ease of operation and cost savings with less expensive automation packages.

 

--Improved disc design leads to less deflection at higher pressures and tighter in-line seal.


Technical Drawing



Painting Check


Packing


Our Main Product Range

As an experienced supplier and vendor of industrial valves, Dervos supply cast steel valve, forged steel valve, cast iron valve, stainless steel valve, bronze valve, brass valve and alloy steel valve and so on, suitable for sea water, water, oil, and gas application.


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Stainless Steel Flanged Gate Valve
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The 6000 psi high pressure needle valve is made of stainless steel F316 according to ASME B16.34. The 1/2 inch NPT needle is used for regulating the flow of fluid and suitable for application with high pressure and small flow.   Quick Detail Type Needle Valve Size 0.5 Inch DesignPressure 6000 PSI ConnectionType Female Thread FNPT Design Code ASME B16.34 End Connection ASME B1.20.1 Face to Face ASME B16.10 Test & Inspection API 598 Body Material SS316 TrimMaterial SS316 Application Water, Oil, Gas   Why choose Dervos as your partner?One Stop ServiceHere in Dervos, we can provide you with one stop service by our complete product list, it means, you don’t need to search for various suppliers for different types of valves, and it will surely save your time and energy. All you need to do is choose Dervos and we will provide complete solutions to you. On Time DeliveryDervos keeps a high percentage of on time delivery. Why could we achieve that? Our purchasing team follows the order very closely. Plus, our QC and sales person will also do monitoring job on each order.Strict Quality Control All the members in the QC team are very experienced and professional. For each order, they will check the raw material, manufacturing process, do the pressure testing on shell and seal, and check the valve dimension per assembly drawing. Lastly, they will inspect the painting and packaging.  

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Leave a message

    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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