Body: WCB; Disc: CF8, Stem: 13Cr. Seat: Overlaid 304 Sealing Ring :304 +Graphite
Face To Face:
API 598/ISO 5208
PS: We also can do according to customer's requirements.
Up Blow-out Proof Design
Disc fixed on the stem with two pins without Chink to prevent the disc
shaken. DBV butterfly valve adopts such design of stepped shaft with
the gland. It is effectively that prevent the stem blows out from the top.
Internal Snap Ring and Bottom Cover Design
DBV butterfly valve adopts the unique stem design. The bottom of
the stem is slotted. The ring is embedded to prevent the stem blow
out. Then, the snap bottom cover plays a same role. This design
suits for the valve which is larger than four inches.
Standard Bolts & Nuts
DBV ball valve adopts the standard bolts and nuts. It could extend the
valve longer service life.
Why Choose DBV Valve？
Triple Eccentricity Design Features
The stem is offset on both the X (1)and Y (2) axis of the valve's center line.
This produces a cam一like motion. The third offset (3) consists of an inclined
conical profile machined into the valve sealing surface. This allows rotary
engagement and disengagement of the seat and seal ring without
interference. All rubbing between seat and seal ring is thereby eliminated.
Once the seat and seal ring are fully engaged torque is applied in order to
create a bi一directional, zero leakage, metal-to一metal seal. For this reason,
triple offset valves are often defined as "torque" seated rather than”position”
seated as in the case of resilient or high performance products.
Multi-layer disc sealing ring
Multi-layer disc sealing ring adopts ss304 and graphite laminated, sealing by
the inside graphite, applied for low and middle pressure, as recycle water, swage
treatment, city building, etc.
Bottom Cover Design
Bolt & Nut
Factory Direct Sales
Our products are with 2 years quality assurance and lifelong maintenance.
Warranty time starts from the dispatch of the goods. Quality assurance means
all the cost arising form the quality problems caused by the manufacturer within
two years will be afforded by us.
In general, the delivery time will be confirmed with the customer in the order,
1-2 days after getting the bank receipt or deposit , the goods will make arrangements.
Shipment: CIF, FOB,etc.
Transportation: air, sea, train, logistics.
We have an email specialized for customer to ask the position of the shipment
and the express, also make the complain or suggestion.
Free Installation Guide
After receiving the goods, you will get a installation guide After receiving the
goods, you will get a installation guide professional techs.
Q1. Are you a factory or trading company?
A: We are a factory specialized in manufacturing valves over 15 years. We both have factory in Wenzhou and Shanghai.
Q2. Can I have a sample order for valve?
A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable. The sample is free.
Q3.Do you have any MOQ limit for valve order?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods?
A: We usually ship by sea, by air, by courier, etc.
Q5. How to check the process of the order?
A: You can check your order on our website after we provide you account and password.
Q6: Do you offer guarantee for the products?
A: Yes, we offer 2 years warranty to our products and we could repair freely for lifelong time.
Q7: Can you print our Logo on the valves?
A:Yes, we can totally produce products according to your special request, even manufacture it base on your drawing.
Q8: How can I check your factory situation while it's difficult for me to come to China?
A：We have photos and videos on our website, youtube and facebook, It shows every step of the manufacturing.
Contact Us to Get Free Quotation
DBV VALVE GROUP CO., LTD is manufacturer of valves.
Shanghai Factory : No.255 Shenjiabang Road, Baihe Town, Qingpu District,
If you like our valves, please bookmark our Facebook,Twitter, which is easier to find us. if you need it one day in the future, we do appreciate it for your kindness.
Main Performance Parameters for ASME Standard
Flange Connection Dimension
Size≤24”according to ANSI B16.5 Size≥24”according to ANSI B16.47 Series B
Test and Inspection
Temperature and Pressure Level
Face to Face
API 609 ISO 5752 basic series 13
Test Pressure at Room Temp.
Water, Oil, Gas and Other Corrosive Media (Different Media Use Different Materials)
-46℃~550℃ (Different Temp. Conditions Use Different Materials)
Main Performance Parameters for DIN Standard
According to GB/T13927-92
Water, Air, Oil, Gas, Steam, and Corrosive Media
Main Performance Parameters for GOST Standard
PS: We also can do according to customer's requirements.
1. DBV butterfly valve is characterized by simple structure, small volume and light weight, and it is easy to install and adjust.
The valve is widely used in the medium and low pressure pipeline.
2. Good sealing performance，corrosion resistance，high pressure and temperature resistance, smart control and safe use.
3. The unique design of triple eccentricity makes no friction between the sealing surface and extend the valve service life.
4. The elastic seal is produced by the torque.
5. The wedge design makes the valve close more and more tightly by automatic sealing function, and there’s compensation
and zero leakage between the sealing surfaces.
Material for Main Parts
WCB, 304, 316, 316 L, CF8M,etc.
WCB, 304, 316, 316 L, CF8M, etc.
316, 2Cr13, 1Cr18Ni9Ti, etc.
316, Fluorine Plastic, etc.
Flexible Graphite, Fluorine Plastic, etc.
Gear Operated Pneumatic Actuator
Why Choose DBV？
1. Factory Overview
2. Quality Control
3. Storage and Warehouse
4. Package and Delivery
5. Honor and Certificate
If you are interested in our products, please click on the following PDF file name to open the Ctrl+S or the right mouse button to save your equipment