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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...

Pressure Seal Bonnet Gate Valve
加载中...

Pressure Seal Bonnet Gate Valve BW 8 Inch 2500LB

  • Payment:

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

    China
  • Color:

    Customization
  • Shipping Port:

    Shanghai China
  • Lead Time:

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

    Alloy Steel Gate Valve WC6
  • Method of Operation:

    Gear Operated Gate Valve
Inquiry now
Product Detail

The 8 inch Class 2500 gate valve is designed with pressure seal bonnet, butt weld connection, and gearbox operation. The 8 inch gate valve has carbon steel WCB body and trim 5.


Quick Detail

Type

Gate Valve

Size

8''

Design Pressure

ANSI 2500

Construction

Pressure Seal Bonnet, Flexible Wedge, Metal to Metal Seat

ConnectionType

Butt Weld (SW)

OperationType

Gearbox Operation

Body Material

A217 WC6

TrimMaterial

Trim 5

Design Code

API 600

Face to Face Dimension

ASME B16.10

End Connection

ASME B16.25

Pressure & Temp

ASME B16.34

Medium

Water, Oil and Gas

Origin

China


Dimension & Material

PSB Gate Valve With Butt Weld End

NPS      DN Class 2 2 1/2 3 4 6 8 10 12 14 16 18 20 24
50 65 80 100 150 200 250 300 350 400 450 500 600
L(RF) 900LB 368 419 381 457 610 737 838 965 1029 1130
1500LB 368 419 470 546 705 832 991 1130 1257 1384
2500LB 451 508 578 673 917 1022 1270
L1(BW) 900LB 216 254 305 355 508 660 787 914 991 1092 1346 1473 1600
1500LB 216 254 305 406 559 711 864 991 1067 1194 1697
2500LB 279 330 368 457 610 762 914 1041 1118 1245
L2(RTJ) 900LB 371 422 384 460 613 740 841 968 1038 1140
1500LB 371 422 473 549 711 841 1000 1146 1276 1407
2500LB 454 514 584 683 927 1038 1292
H(Opne) 900LB 554 637 680 796 1084 1372 1494 1550 1960 2210
1500LB 554 637 767 875 1094 1372 1655 1834 2150 2260 2460 2721 2940
2500LB 610 654 753 850 1254 1374 1685 1894 2226 2382 2585
W 900LB 300 350 350 400 560 460* 610* 610* 610* 760*
1500LB 300 450 450 560 305* 460* 610* 610* 760* 760*
2500LB 500 500 600 600 460* 460* 610*
Weight   (RF) 900LB 50 84 92 154 341 622 950 1295 1720 2380
1500LB 60 91 128 182 394 795 1370 2120 2800 3870
2500LB 121 175 195 229 720 1295 2250
Weight   (BW) 900LB 39 64 82 120 266 524 760 1090 1450 2018
1500LB 46 71 85 130 292 578 974 1615 2010 2815 3315 4150 5219
2500LB 88 135 144 158 500 892 1550 1978 2580 3780 5988
*Manual gear operator is recommended



No. Part WCB WC6 WC9  C5 CF8 CF8M
1 Body A216 WCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M
2 Seat A182 F6a A182 F22 A182 F22 A182 F5 A182 F304 A182 F316
3 Wedge A216 WCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M
4 Stem A182 F6a SAEHNV3 A182 F304 A182 F316
5 Stuffing Box A216 WCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M
6 Seal Ring ANSI 316L Flexible Graphite+316
7 Split Ring Steel F6 F6 F6 A182 F304 F316
8 Back Ring Steel Steel Steel Steel SS SS
9 Bolt A193 B7 A193 B7 A193 B7 A193 B7 A193 B8 A193 B8
10 Nut A194 2H A194 2H A194 2H A194 2H A194 Gr.8 A194 Gr.8
11 Yoke A216 WCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M
12 Bolt A193 B7 A193 B7 A193 B7 A193 B7 A193 B8 A193 B8
13 Nut A194 2H A194 2H A194 2H A194 2H A194 Gr.8 A194 Gr.8
14 Packing Plate ANSI 410 ANSI 410 ANSI 410 ANSI 410 ANSI 304 ANSI 316
15 Packing Flexible Graphite(Braided and Ring) or PTFE
16 Split Pin Steel Steel Steel Steel Steel Steel
17 Eyebolt A193 B7 A193 B7 A193 B7 A193 B7 A193 B8 A193 B8
18 Gland A182 F6 A182 F6 A182 F6 A182 F6 A182 F304 A182 F316
19 Gland Flange A105 A105 A105 A105 A182 F304 A182 F316
20 Nut A194 2H A194 2H A194 2H A194 2H A194 Gr.8 A194 Gr.8
21 Stud A193 B7 A193 B7 A193 B7 A193 B7 A193 B7 A193 B7
22 Stem Nut Ni-resist A439-D2
23 Gear Box Purchased
24 Protector Steel
25 Nameplate ANSI 304
26 Rivet ANSI 304


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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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