English

English

Get a Quote
Products

Hot Products

Company News

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...

4 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M
加载中...

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M

4" 150LB gate valve is made according to API 603 standard. The valve body is made of ASTM A351 CF8M+STL. It has the structural characteristics of bolt cover, elastic wedge and rising stem. Its test and inspection conform to API 598, and its operation mode is handwheel operation.

  • 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 A351 CF8M+STL
  • Method of Operation:

    HW-OP
Inquiry now
Product Detail

Product Description

Type

Gate Valve

Size

4"

Pressure

150LB

Connection

RF

Operation

HW-OP

Body Material

ASTM A351 CF8M+STL

Design Norm

API 603

Face to face dimension

ASME B16.10

Flange dimension

ASME B16.5

Test & Inspection Code

API 598

Temperature

-29 ~ 425°C

Applicable Medium

Water, Oil and Gas

Features

1. The fluid resistance is small, and the sealing surface is less scoured and eroded by the medium;

2. Simple structure, short structure length and wide application range;

3. Good manufacturing process, high temperature and high pressure resistance, and many optional materials.

Technical Drawing

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M

Dimension Checking

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M

Pressure Testing

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M

Nameplate & Packing

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M

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.

4" 150LB Gate Valve API603 Stainless Steel HW-OP OS&Y CF8M
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.

Related Products
Stainless Steel Flanged Gate Valve
Stainless Steel Gate Valve DIN 3352 PN16 OS&Y

The stainless steel CF8M gate valve is designed with flange connection and handwheel operation per DIN 3352. The PN16 DN200 full port gate valve has OS&Y structure, resilient wedge and replaceable seat. Design Specifications Design and Manufacture: DIN 3352 End to End Dimension: DIN3202 Flange End: EN1092-1 Test & Inspection: EN12266-1/2 Design Feature -Full Bore Design -Superior flow rates & small friction loss -Low torque value for closing and opening the valve -Flexible wedge for better seating and ease of operation -Smooth finish and superior sealing for seat face -Every valve is manufactured with specific number on body for traceability Quick Detail Type Gate Valve Size DN 200 Pressure PN 16 Construction Bolted Bonnet, Rising Stem, Outside Screw and Yoke Connection Flange Connection Operation Handwheel Body Material Stainless Steel CF8M TrimMaterial Stainless Steel Temperature Range -268℃~+648℃ Medium Water, Oil and Gas Origin China Dervos Packaging Packaging is an important part we could never neglect. Dervos has a packaging process for each order to ensure a safe and clear delivery of the order.

DN200 PN40 Stainless Steel Gate Valve EN1984 HW-OP BB RF OS&Y
DN200 PN40 Stainless Steel Gate Valve EN1984 HW-OP BB RF OS&Y

DN200 PN40 gate valve is made according to EN1984 standard. The valve body is made of 1.4571+STL. It has the structural characteristics of bolt cover, elastic gate, rising stem and bracket. Its connection mode is EN1092-1/B. And it has hand wheel operation mode.

DIN DN125 PN16 Stainless Steel Gate Valve HW-OP BB RF
DIN DN125 PN16 Stainless Steel Gate Valve HW-OP BB RF

DN125 PN16 gate valve is made according to DIN 3352 standard. The valve body is made of 1.4408. It has the structural characteristics of bolt cover, rising stem, elastic wedge, with SS316 insulation jacket and structural length of 325mm. Its connection mode is RF EN1092-1 B1. And it has hand wheel operation mode.

2 150LB Stainless Steel Gate Valve RF CF3 API600 Handwheel
2" 150LB Stainless Steel Gate Valve RF CF3 API600 Handwheel

2" 150LB gate valve is made according to API 600 standard. The valve body is made of A351 CF3. It has the structural characteristics of bolt cover, rising stem bracket. Its connection mode is RF. And it has handwheel operation mode.

Y Pattern Globe Valve
3/4 Inch 1500LB Y Pattern Globe Valve SW Handwheel API602

Quick Detail Type Globe Valve Designed Size 3/4 Inch Designed Pressure 1500LB Construction Y Type; Bolted Bonnet; Connection Type Socked Weld Operation Handwheel Design Code API602 Connection ANSI B16.11 Test & Inspection  API598 Body Material A182 F11+STL Trim Material A276-410+STL Application Water, Oil, Gas Features · Low pressure drop. · Low torque stroking · Quick and easy repair in line. · Tight shutoff. · Stem expansion/contraction thrust unit for high temperature application (optional). · Other sizes available on request. · Live-loading of packing optional.    Technical Drawing Dimension Check Witnessing Tests Packing Product Application Dervos valves can be widely used in varieties of industries, such as petrochemical,pipeline,oil & gas,marine,water treatment,power station industries and etc.

Tilting Disc Check Valve
RF Connection, 3" 150LB Tilting Disc Check Valve, Body CF8M, API6D

3" 150LB tilting disc check valve is made according to API 6D & BS1868 standard. The valve body is made of ASTM A351 CF8M. It has the structural characteristics of tilting disc type, bolt cover. Its connection mode is RF.

Stainless Steel Foot Valve 2'' Class150 Flanged end
Stainless Steel Foot Valve 2'' Class150 Flanged end

The 2 inch 150LB foot valve is made of stainless steel.

1 1/2 inch pressure-sealed globe valve 1500LB SW OSY
1 1/2 inch pressure-sealed globe valve 1500LB SW OSY

The 1 1/2inch 1500LB globe valve,made of one kind of alloy steel F22, is the best answer to working conditions under high pressure and temperature .

Swing Check Valve
BS1868 10" 150LB Swing Check Valve FF UNS N08031

10" 150LB check valve is made according to BS1868 standard. The valve body is made of ASTM UNS N08031. It has the structural characteristics of bolt cover and swing type. Its connection mode is FF.

Gate Valve
API602, 3/4" 800LB Forged Steel Gate Valve, Body A105N, SW Connection, Handwheel

3/4" 800LB forged steel gate valve is made according to API 602 standard. The valve body is made of A105N. It has the structural characteristics of bolt cover, rising stem, OS&Y, reduced diameter. Its connection mode is SW. And it has hand wheel operation mode.

Tee Pattern Globe Valve
DN25 PN250 Tee Pattern Globe Valve Forging Steel API 602

Quick Detail Type Globe Valve DN DN50 PN PN250 Construction Tee Pattern; Bolt Bonnet; Connection Type NPT Operation Type Handwheel Design Code API602 Screw End ASME/ANSI B1.20.1 Test & Inspection API598 Body Material A105+STL Trim Material A276-420 Medium Water, Oil and Gas Origin China   Features -- Globe valves have both good throttling and shutoff capabilities -- Easy to maintain and resurface the seats -- Can be used as a stop-check valve if the disc is not attached to the stem Technical Drawing Dimension Check Witnessing Tests Dervos Packaging Good packing means good first impression. Just imagine how do you feel differently when seeing two boxes below? And you will know the reason why in Dervos we value packaging so much. In Dervos, we make sure- Every valve is clean and dry. -Clean the valve before packing -Add anti-rust oil -Add flange cover   No damage to valves in delivery. -Fix the valve with iron wire -Separate the valve with soft material -Layer the valve with plywood -Strong box and clear shipping mark

Wafer Check Valve
4" 150LBS Dual Plate Wafer Type Check Valve WCB API594

4" 150LBS check valve is made according to API 594 standard. The valve body is made of A216 WCB+STL. It has the structural characteristics of dual plate. Its connection mode is wafer type.

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.

Home

Products

about

contact