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Global Partners Reunite to Celebrate Dervos' 17th Anniversary Milestone
Global Partners Reunite to Celebrate Dervos' 17th Anniversary Milestone
2025-07-03

To mark this milestone in Dervos Valve’s journey, we came together not just to celebrate, but to connect with the partners who have supported us along the way. This anniversary is a tribute to enduring partnerships and a sha- red vision for the future.   On the occasion of Dervos Valve’s 17th anniversary, our valued partners were specially invited to visit our headquarters for in-depth, face-to-face exchanges with the team. These meaningful interactions deep- ened mutual understanding andtrust, laying a solid foundation for even stronger cooperation in the future.   Accompanied by our team, the clients toured the office area and were introduced to colleagues from various departments. The interactions were relaxed and friendly, creating a warm atmosphere that further strengthened mutual understanding. Following the tour, our sales team delivered a themed presentation on “Dervos 17th Anniversary,” offering the clients a comprehensive overview of the company's development journey, core strengths, and service philosophy. We also expres- sed our heartfelt gratitude and warm welcome to our valued partners. Through this session, the clients gained a deeper understanding of Dervos, enabling us to better tailor our services to their needs. They expressed strong appreciation for Dervos’ steady growth and thanked us for inviting them to be part of this meaningful celebration.   In front of the company’s cultural wall, clients took a moment to sign and leave messages, expressing their well wishes for Dervos. This moment not only reflected cultural recognition but also a genuine expression of the emotional bond and trust shared through our partnership.   Next, we arrived at the highlight of the anniversary celebration— the Dervos Valve 17th Anniversary Gala Dinner, a moment of gratitude and shared celebration. We arranged a visit to the "Yu Jian Minnan" Cultural Park for our clients, where they explored the ancient architectu- ral district and experienced the traditional art of rubbings, immersing themselves in the charm and craftsman- ship of Chinese culture.   In the evening, a red carpet was laid out in front of the hotel, where the Dervos team warmly welcomed guests, coming together with partners from around the world to witness this moment of honor. As the lights came on, the anniversary gala dinner officially began. The venue was decorated in a grand and festive style, with a warm and lively atmosphere. The event kicked off with a performance that blended both Eastern and Western cultures,featuring a lineup of classic foreign songs and traditional Chinese pieces, showcasing Dervos' open and inclusive brand spirit, with a global outlook. During the interactive games and lucky draw sessions, guests actively participated and enjoyed themselves, with laughter and joy filling the air. This lively atmosphere showcased the cohesion and energy of the Dervos team.   As the familiar melo...

 Global Partners Go Together to Celebrate Its 17th Anniversary, Starting in Historic Xi' an
Global Partners Go Together to Celebrate Its 17th Anniversary, Starting in Historic Xi' an
2025-07-03

On the occasion of Dervos Valve’s 17th anniversary, we proudly continued our tradition by inviting partners from Australia, Turkey, Italy, Russia, Argentina, South Africa, the United States, and other countries to gather in the ancient city of Xi’an to witness this milestone together. This event was not only a continuation of long-standing partnerships but also a testament to mutual trust.     Dervos warmly welcomed our global partners, and through in-depth exchanges, both sides further deepened cooperation and understanding. The gathering showcased Dervos’ openness as a global valve brand and its confidence in sharing Chinese culture.   To help our overseas guests gain deeper insights into Chinese heritage, we thoughtfully organized a cultural tour of Xi’an. Highlights included visits to the UNESCO-listed Terracotta Warriors, a walk atop the ancient city wall, scenic views at the Giant Wild Goose Pagoda,and hands-on experiences such as trying on traditional Hanfu attire—activities that were greatly enjoyed by our international friends.   In front of the Terracotta Army of Emperor Qin Shi Huang, our guests were deeply impressed and inspired as they carefully admired the grandeur of this underground legion. Captivated by its majestic scale and historical significance, they took group photos to commemorate the moment—creating unforgettable memories of thisawe-inspiring experience.     Guests strolled leisurely beneath the Xi’an City Wall, taking photos and sharing conversations, while enjoying the rich blend of history and culture that surrounds this ancient landmark.     Guests strolled leisurely beneath the Giant Wild Goose Pagoda, soaking in the unique charm of Xi’an where history and culture intertwine.     Our international guests enthusiastically took part in trying on traditional Hanfu and sampling Xi’an’s signature local cuisine. They frequently paused for photos, fully immersed in the authentic cultural atmosphere.     The first leg of Dervos’ 17th anniversary celebration came to a successful close, leaving every participant with joyful memories. More than just a journey, the Xi’an visit deepened the trust and friendship between Dervos and its global partners.   The Xi’an journey marks only the beginning of Dervos’ 17th anniversary celebrations—more exciting events are on the way. We sincerely thank every partner for your continued support. Let us witness our growth together and stride toward a broader, brighter future.  

High-Performance Triple Offset Metal Seated Butterfly Valve with Gearbox Applied in a Large Copper-Gold Mine Project in Indonesia
High-Performance Triple Offset Metal Seated Butterfly Valve with Gearbox Applied in a Large Copper-Gold Mine Project in Indonesia
2025-06-27

In a major copper-gold mining project in Indonesia, DERVOS supplied multiple high-performance triple offset metal seated C95500 butterfly valves, which were applied in slurry transportation and process pipeline systems. The operating conditions on site are highly challenging, with media containing a large number of solid particles, posing significant risks of abrasion and corrosion. The valves were required to offer excellent wear resistance, corrosion resistance, and bidirectional zero leakage sealing performance.   As a professional triple offset butterfly valve supplier, DERVOS VALVE provided a customized solution tailored to the client’s specific needs, ensuring stable system operation even in such harsh environments. Client Need In a large-scale copper-gold mining project in Indonesia, DERVOS supplied multiple high-performance C95500 triple offset metal seated butterfly valves, specifically engineered for slurry transportation and process pipeline systems. The site presented extremely demanding conditions, with media containing high concentrations of solid particles—posing serious challenges related to abrasion and corrosion. To meet these requirements, the valves were designed to deliver exceptional wear resistance, corrosion resistance, and bidirectional zero-leakage sealing performance.   As a trusted triple offset butterfly valve manufacturer, DERVOS VALVE delivered a customized valve solution precisely tailored to the client's operational needs, ensuring long-term reliability and stable system performance under harsh industrial environments.   Devos Solution DERVOS custom-engineered triple offset nickel-aluminum bronze metal seated butterfly valves for this project, featuring C95500 nickel-aluminum bronze valve bodies and F53+STL hard-faced welded seats, specifically designed for highly corrosive and abrasive environments.   Triple Offset Butterfly Valve – DN900/DN1500, 150LB, FF, API 609 Standard • Size: DN900 • Pressure Rating: 150LB • Design Features: Triple offset structure with bidirectional, zero-leakage • sealing under equal pressure.• Equipped with independent seat material: F53 + STL hard-facing. Operated via gear box. Connection Type: FF (Flat Face) dual flange ends. • Special Requirements:    Face-to-face dimension per ISO 5752 (short pattern)    Heat-treated and annealed castings   Excellent Wear and Corrosion Resistance The valve body is made of C95500 nickel-aluminum bronze, known for its high strength, hardness, and outstanding wear resistance. It also offers excellent resistance to cavitation erosion and flow-induced corrosion.In addition, C95500 exhibits good ductility and toughness—maintaining high mechanical strength while providing a certain degree of plasticity and impact resistance, which helps prevent brittle failure.It demonstrates superior corrosion resistance in harsh media such as slurry, brine, an...

Welded Ball Valve Forged Steel Metal Seated
加载中...

10 Inch Fully Welded Ball Valve Metal Seated Bare Stem

  • Payment:

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

    China
  • Shipping Port:

    Shanghai China
  • Lead Time:

    35~60 days Ex Works After Order Confirmation
  • Material:

    Carbon Steel Ball Valve ASTM A105N
  • Method of Operation:

    Bare Stem Ball Valve
Inquiry now
Product Detail
The 20 inch metal seated ball valve is designed for high temperature application or application with solid particulate. The valve has welded body, RF flange connection, bare stem for actuators, belonging to trunnion mounted type.

Quick Detail

Type

Ball Valve

Size

20"

Pressure

ANSI 600

Construction

Trunnion Type, One-Piece Body, Fully Welded, Metal to Metal Seat

Connection

Flanged

Operation

Bare Stem

Body Material

Forged Steel ASTM A105

Design Standard

API 6D

Pressure & Temp

ASME B16.34

Face to Face Dimension

ASME B16.10

End Connection

ASME B16.5

Inspection

API 598

Temperature Range

-29℃~+200℃

Media

Oil, Water, Gas


Dimension

CLASS 600
DN mm 50 65 80 100 150 200 250 300 350 400 450 500
NPS in 2 2.5 3 4 6 8 10 12 14 16 18 20
L
(RF)
mm 292 330 356 432 559 660 787 838 889 991 1092 1194
in 11.5 13 14 17 22 26 31 33 35 39 43 47
L1
(BW)
mm 292 330 358 432 22 660 787 838 889 991 1092 1194
in 11.5 13 14 17 559 26 31 33 35 39 43 47
L2
(RTJ)
mm 295 333 359 435 562 664 791 841 892 994 1095 1200
in 11.63 13.13 14.13 17.13 22.13 26.13 31.13 33.13 35 39.5 43.1 47.3
H mm 153 165 195 213 272 342 495 580 630 725 800 850
in 6.02 6.5 7.68 8.39 10.7 13.5 19.5 22.85 24.8 28.5 31.5 33.5
Do(W) mm 600 850 1250 1300 1500 *350 *350 *600 *600 *800 *800 *800
in 23.62 33.46 49.25 51.22 59 13.8 13.8 23.6 23.6 31.5 31.5 31.5
RF(Kg) 38 56 66 122 217 350 660 820 830 1160 1420 1650
BW(Kg) 31 51 58 117 200 327 605 790 800 1030 1305 1505
*Worm Gear or Electric actuator operated


Flanged Ball Valve Dimensions


Related Knowledge
When to use metal seated ball valve?

The seat of a metal seated ball valve is often stellite, stainless steel, or tungsten carbide instead of soft seat material like ptfe, peek, nylon, teflon, and devlon. These metal to metal seat ball valves are especially applicable for:
-Media with high temperature
-Media with solid particulate for high abrasion
-Media with severe condition, like high erosion and corrosion
-Media with high viscosity like heavy oil

Our Main Product Range
Dervos main products include ball valves, butterfly valves, check valves, gate valves, globe valves, and plug valves in different materials, sizes, standards and types as per clients’ requests.

Metal Seated Ball Valve Manufacturers



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