Your Professional Special Valve Supplier
Zhejiang Youbo Valve Technology Co., Ltd. Founded in 1990, Zhejiang Youbo Valve Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, sales, and service of industrial valves. Headquartered in the "Valve Capital of China," Wenzhou Binhai Industrial Park, Zhejiang Province, the company enjoys convenient transportation access, being close to Wenzhou International Airport and Longwan International Container Terminal.
Why Choose Us
Rich Experience
With over 30 years of experience in the valve industry, the company leverages advanced manufacturing technology, a rigorous quality management system, and innovative R&D capabilities to provide safe, reliable, and efficient valve solutions to global customers.
Stringent Quality Management
Over 20 inspection processes from raw materials to finished products.
Certified by international standards such as ISO 9001, CE, and API 6D.
MES production traceability system ensures traceable quality for every valve.
Solution Design
Based on your process requirements (diversion, merging, reversing), we recommend the optimal product model, material (e.g., 304/316 stainless steel, carbon steel, alloy, etc.), and specifications.
Professional Team Support
We maintains a professional engineering team capable of providing both online and on-site services. With years of project experience, we offer expert advice for both standard and specialized projects.
Special Valve Specifications
|
Item |
Value |
|
Warranty |
1year |
|
Type |
BALL VALVES, DBB |
|
Customized support |
OEM, ODM |
|
Place of Origin |
China |
|
Brand Name |
GZP |
|
Model Number |
Q47 |
|
Application |
General |
|
Temperature of Media |
High Temperature, Low Temperature, Medium Temperature, Normal Temperature |
|
Power |
Manual |
|
Media |
Water |
|
Port Size |
1/2"-4" |
|
Structure |
BALL |
|
Product name |
Double Block and Bleed Valve |
|
Body material |
SS304/SS316 |
|
Working medium |
Water Oil Gas Acid |
|
Standard or Nonstandard |
Standad |
|
Standard |
API ANSI DIN JIN |
|
Working Temperature |
-196~360 |
|
Working 6,250 PSIpressure |
430 bar |
Features

-
Customization & Specificity
Designed for unique tasks (e.g., choke valves for oil & gas, hygienic valves for food) or specific media (oxygen, ammonia).
-
Material Excellence
Made from special alloys (like Stellite, Inconel) to resist corrosion, extreme temperatures, and wear.
-
Superior Sealing
Designs like double discs with spring loading or metal-to-metal seats provide reliable shut-off, preventing leaks in critical systems.
-
Enhanced Performance
Optimized flow paths (straight-through or Z-path) reduce friction, prevent fluid buildup (like solidification), and offer precise control.
Type
Multiport Valves
Have more than two ports, allowing flow diversion or combining (e.g., 3-way, 4-way).
Pinch Valves
Use a rubber tube and clamp; ideal for fluids with suspended solids (slurries).
Needle Valves
Offer very fine, accurate flow control and throttling.
Diaphragm Valves
A flexible diaphragm isolates the fluid from the valve mechanism, good for food, pharma, and corrosive fluids.
Foot Valves
Installed at the end of suction lines; act as a check valve and strainer.
Knife Gate Valves
Simple, effective shut-off for solids, slurries, and powders, with minimal flow restriction.
Applications
Oil and Gas
Used extensively in upstream, midstream, and downstream operations for flow control and isolation in pipelines,refineries, and LNG facilities.
Petrochemicals
Suitable for handling volatile chemicals, acids, and corrosive fluids due to their robust design and superior sealing.
Power Generation
Deployed in turbine feedwater systems, cooling water circuits, and other high-pressure steam applications.
Water and Wastewater Treatment
Utilized to control the flow of raw water, wastewater, and various chemicals used in treatment processes.
Mining and Minerals Processing
Their durable construction makes them ideal for handling abrasive media in applications like slurries and tailings disposal.
Automated and Remote Systems
The trunnion design reduces torque, making it suitable for automated operations with actuators.
Shipping
Delivery time: 10-20 working days after paymentreceipt confirmed(based on actual quality) .
Parking: Standard export packing,or customized packing as your request.
Professional goods shipping forwarder.
PAYMENT
Please contact customer service before placing an order.
Online trade assurance order,all is up to you.
More payment terms could be provided(T/T,PAYPAL,WESTERN UNION).
Our Certificate






FAQ
We're well-known as one of the most professional special valve manufacturers in China. With abundant experience, we warmly welcome you to wholesale high quality special valve made in China here from our factory. Customized orders are welcome.
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