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What is a Tilting Disc Check Valve?
What is a Tilting Disc Check Valve?
2024-05-08

The tilting disc check valve is a common type of valve used in pipeline systems to prevent reverse flow of the medium. It typically consists of components such as the valve body, disc, spring, and sealing gasket. The working principle of the tilting disc check valve is based on the design of the disc: the disc is positioned at an angle, allowing the medium to flow smoothly through the valve in the forward direction, while swiftly closing the valve in the event of reverse flow, thereby preventing backflow of the medium. One of the characteristics of the tilting disc check valve is its simple structure. Due to the fewer components and compact layout, manufacturing and maintenance are relatively easy. Additionally, the tilting disc check valve has the capability of quick closure. When there is a change in the flow direction of the medium, the disc promptly responds and closes the valve, effectively preventing backflow of the medium and maintaining the normal operation of the pipeline system. Another significant feature is its excellent sealing performance. The tilting disc check valve employs devices such as springs to assist in closing the disc, ensuring effective sealing of the valve in the closed position, thus preventing medium leakage and safeguarding the safe operation of the pipeline system. Furthermore, tilting disc check valves are typically manufactured using corrosion-resistant materials, enabling them to operate stably in corrosive media over the long term. Another notable feature of the tilting disc check valve is its wide range of applications. It is suitable for various media, including liquids, gases, and steam, and is widely used in industries such as water supply, drainage, chemical, and petroleum. Whether in low-pressure systems or high-pressure systems, tilting disc check valves can reliably prevent medium backflow, protecting the safety operation of pipelines and equipment. In summary, the tilting disc check valve plays a crucial role in pipeline systems due to its characteristics of simple structure, rapid closure, excellent sealing performance, corrosion resistance, and wide applicability. When designing and selecting valves, considering factors such as the working pressure of the pipeline system, characteristics of the medium, and operating environment, choosing the appropriate tilting disc check valve can effectively enhance the safety and stability of the pipeline system.

Specific Requirements for Installing Fully Welded Ball Valves in Underground Pipelines
Specific Requirements for Installing Fully Welded Ball Valves in Underground Pipelines
2024-04-29

The installation requirements of fully welded ball valves in underground pipelines are crucial, as the unique characteristics of the underground environment pose higher demands on the performance and safety of the valves. Proper installation not only ensures the normal operation of the valves but also prolongs their service life and enhances the safety and reliability of the pipeline system. The following are the specific requirements for installing fully welded ball valves in underground pipelines: 1. Selecting the appropriate valve type When installing fully welded ball valves in underground pipelines, it is necessary to choose the appropriate valve type based on the operating conditions and fluid characteristics of the pipeline system. Fully welded ball valves, with advantages such as simple structure and reliable sealing, are suitable for high-pressure, high-temperature, and corrosive fluid applications in pipeline systems. 2. Underground burial depth consideration When installing fully welded ball valves, it is imperative to consider the depth of underground burial. Typically, the burial depth of underground pipelines should comply with relevant standards and specifications to ensure the valves are positioned securely while facilitating maintenance and operation. 3. Corrosion protection measures The dampness of the underground environment and the presence of chemicals in the soil can lead to corrosion and damage to valves. Therefore, when installing fully welded ball valves, it is necessary to implement appropriate corrosion protection measures. This includes selecting valves manufactured from corrosion-resistant materials and applying corrosion-resistant coatings to the valves to extend their service life. 4. Sealing performance requirements Fully welded ball valves in underground pipeline systems must possess excellent sealing performance to prevent fluid leakage and contamination of groundwater sources. During installation, it is imperative to ensure that the valve's sealing components are intact and properly installed to ensure that the sealing performance meets design requirements. 5. Consideration of groundwater level fluctuations Fluctuations in groundwater levels may affect the operational status and safety of fully welded ball valves. When selecting installation locations, it is essential to consider the range of groundwater level fluctuations and implement corresponding waterproofing measures to prevent groundwater from affecting the valves. 6. Regular inspection and maintenance The underground environment has a significant impact on fully welded ball valves; therefore, regular inspection and maintenance of the valves are essential. Inspection tasks include assessing the sealing performance of the valves, checking the condition of moving parts, evaluating the effectiveness of corrosion protection measures, and promptly addressing any issues to ensure the safe operation of the valves. When installing fully welded ball valves in unde...

Embarking on a New Chapter: DERVOS Relocates to Channel Pearl Plaza
Embarking on a New Chapter: DERVOS Relocates to Channel Pearl Plaza
2024-04-26

We are delighted to announce that our company is on the brink of a new beginning - the acquisition of a new office space. This marks a fresh start for our company's development, and we eagerly anticipate crafting a brighter future in this new environment. The selected location enjoys excellent geographic positioning, convenient transportation, and a pleasant environment. The choice of our new office space has been meticulously considered, aiming to provide our employees with a spacious and comfortable working environment while offering ample support and motivation for the company's development. Starting from April 15, 2024, our office address will be changed to: [Unit 3104, Channel Pearl Plaza, No.99 Yilan Road, Siming District, 361008, Xiamen City, Fujian Province, China]。This relocation is not only a natural choice for the continued development of our company, but also a testament to our confidence and aspirations for the future. The utilization of the new premises will further enhance internal collaboration and communication within the company, ignite the creativity and vitality of our team, and elevate our efficiency and service standards. We aim to deliver even higher-quality products and services to our customers and partners as a result. Finally, we would like to express our heartfelt gratitude for your long-standing support and trust in our company. We believe that this new beginning will bring forth fresh hope and opportunities. We will continue to uphold the principle of 'Customer First, Innovative Development', striving for excellence and working towards our long-term corporate goals. Let us join hands and work together to create a brighter future.

Gate Valve
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API 6D Through Conduit Gate Valve Soft Seated 20 Inch 600LB

The API 6D through conduit gate valve is designed with 600 LB flange and gearbox connection. Made of carbon steel WCB, the 20 inch gate valve has soft seat design without diversion hole.

  • 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:

    ASTM A216 WCB
Inquiry now
Product Detail

Product Description

Type

Through Conduit Gate Valve

Size

20 Inch

Pressure

Class 600

Construction

Through Conduit, Soft Seated, Without Diversion Hole

Connection

RF Flange, Butt Weld

Operation

Gearbox

Body Material

ASTM A216 WCB

Design Code

API 6D

Pressure & Temp Code

ANSI B16.34

Test & Inspection Code

API 598

Medium

Water, Oil and Gas

Origin

China

Product Range

Body material: Carbon Steel, Stainless Steel, Alloy Steel

Normal diameter: 2’’ ~ 60’’ (DN50 ~ DN1500)

End connection: Butt Weld, Flange

Pressure range: 150lbs ~ 2500lbs (PN16 ~ PN420)

Operation: Handwheel, Gearbox, Electric, Pneumatic, Electro Hydraulic Actuator, Gas over oil actuator

Working temperature: -46℃~ +200℃

Seat Type: Meta to Metal Seat, Soft Seat

Material

Part Name

Material

Body & Bonnet

A216 WCB,CF8,CF8M,CF3,CF3M

Wedge

Alloy Steel(face harden treated), Stainless steel(with Co overlay)

Stem

Alloy steel(face erosion-resistant treated)

Seat

Alloy Steel(race Harden Treated,Beset F plastic),Steel(with Co overlay,Beset F plastic)

Packing

PTFE

O-Ring

NBR,FEP

 Dimension

About Dervos

Xiamen Dervos Valve Industry Co.,Ltd was founded in 2008. We are an doer at valve industry and accumulated ten years export experiences. Dervos alway focus on customer's feeling. We pay attention to what our customer paid. 

This kind of faith help Dervos people developing continuously.

Our Main Product Range

Our Valve products include Ball Valves, Butterfly Valves, Check Valves, Gate Valves, Globe Valves, and Plug Valves in various different materials, sizes, standards and types.

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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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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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