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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.

The Important Functions of Steam Trap Valves
The Important Functions of Steam Trap Valves
2024-04-17

A steam trap valve is a device designed on devices that require steam, which can automatically discharge condensate, air, and non condensable gases from the steam system and prevent steam from being discharged. Important Functions (1) Able to quickly remove condensate generated; (2) Prevent steam leakage; (3) Remove air and other non condensable gases. The necessity of using steam equipment to remove condensate and air: (1) Prevent water hammer: If there is condensate in the steam pipeline, it will be strongly impacted by the high-speed flowing steam on the pipe wall, valves, and steam equipment, causing damage or damage to the pipeline bends, valves, and steam equipment. (2) To prevent a decrease in the efficiency of steam using equipment: Steam using equipment (especially indirect heating devices) is aimed at effectively utilizing the latent heat of steam. Excessive condensate trapped in these devices comes into contact with the heating surface, reducing the heating area and uneven heating up and down, resulting in a significant decrease in equipment efficiency. (3) Prevent corrosion of steam inside equipment: Oxygen in water and air coming into contact with the equipment can cause chemical reactions, leading to rust corrosion. (4) Prevent damage to steam using equipment: Due to the different temperatures of steam and water, the condensed water inside the equipment generates temperature differences locally, causing temperature difference stress and equipment damage. Specific requirements for steam trap valves: (1) No steam leakage during the discharge of condensate; (2) It can eliminate all condensed water from any part of the steam system; (3) Capable of simultaneously discharging air and condensate; (4) Suitable for a wide range of pressures; (5) Easy to repair and maintain: simple structure with few moving parts; (6) High practicality: small size, light weight, long lifespan, low price, and no loss of emission capacity due to air and steam.

Non Lubricated Sleeved Plug Valve
加载中...

Non Lubricated Sleeved Plug Valve 6 Inch Gearbox WCB

  • Payment:

    30% T/T When Order, 70% T/T Before Shipment
  • Product Origin:

    China
  • Color:

    Customization
  • Shipping Port:

    Shanghai China
  • Lead Time:

    30~55 days Ex Works After Order Confirmation
  • Material:

    Carbon Steel Plug Valve, Cast Steel Plug Valve, WCB
  • Method of Operation:

    Manual Plug Valve, Gearbox Operation Plug Valve
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Product Detail

The 6 inch sleeved plug valve features in non lubricated design and soft seat. The full port plug valve is made of carbon steel body and PTFE seat as per API 6D, with Class 150 flange connection.


Quick Detail

Type

Plug Valve

Size

6''

Design Pressure

150LB

Construction

Self-Lubricated Type, Sleeved Type, Soft Seat

Connection Type

RF Flange

Operation

Gearbox Operation

Design Code

API 599

Face to Face

ASME B16.10

End Connection

ASME B16.5

Pressure & Temp

ASME B16.34

Test & Inspection

API 598

Body Material

A216 WCB

Temperature Range

-29℃~+425℃

Application

Water, Oil, Gas


Material & Dimension

Sleeved Plug Valve Manufacturers

No Part Name Carbon steel to ASTM Stainless steel to ASTM
WCB LCB CF8 CF8M CF3 CF3M
1 Body A216 WCB A350 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
2 Bonnet A216 WCB A350 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
3 Plug A105 A182 F304 A351 CF8 A351 CF8M A351 CF3 A351 CF3M
4 Stem A182 F6 A182 F6 A182 F304 A182 F316 A182 F304L A182 F316L
5 Seat Ring PTFE
6 Gasket PTFE or Stainless Steel and Graphite
7 Stem Seat PTFE PTFE PTFE PTFE PTFE PTFE
8 Small spring 17-17PH
9 Small ball A182 F304 or A182 F316
10 Gland A182 F6 A182 F6 A182 F304 A182 F316 A182 F304L A182 F316L
11 Gland Flange A216 WCB A350 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
12 Stem packing PTFE or Graphite
13 Bonnet bolt A193 B7 or A320 L7 or A320 B8 or A193 B8M
14 Bonnet nut A194 2H or A194 4 or A194 8


Class 150

DN mm 15 20 25 40 50 65 80 100 150 200 250 300
NPS in  1/2 3/4 1 1 1/2 2 2 1/2 3 4 6 8 10 12
L(RF) mm 108    117 127 165 178 191 203 229 394 457 533 610
in 4.25 4.6 5 6.5 7 7.5 8 9 15.5 18 21 24
L1(BW) mm 140 152 165 190 216 241 283 305 457 521 559 635
in 5.5 6 6.5 7.48 8.5 9.5 11.13 12 18 20.5 22 25
L2(RTJ) mm 119 129.7 139.7 178 191 203 216 241 406 470 546 622
in 4.69 5.11 5.5 6.9 7.5 8 8.5 905 16 18.5 21.5 24.5
H mm 59 63 75 92 153 165 195 213 272 342 495 580
in 2.3 2.5 2.95 3.74 6.02 6.5 7.68 8.39 10.7 13.5 19.5 22.85
D(W) mm 130 130 160 230 400 400 600 850 1100 1500 350* 350*
in 5.1 5.1 6.3 9 15.74 15.74 23.62 33.46 43.3 59 13.8 13.8
Weight  (Kg) RF 2.3 3 4.5 7 15 20 25 40 97 160 240 390
BW 2.0 2.5 3.8 5.8 12 17 21 36 92.8 154 227 365


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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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