Face To Face:
Test And Inspection:
ISO9001, ISO14001, ISO28001, TS, CE,TUV
PS: We also can do special material according to customer's requirements.
DBV ball valve adopts the standard flange.
DBV ball valve adopts the standard bolts and nuts. It could
extend the valve longer service life.
The yoke design is convenient for assembling worm gear, pneumatic, electric, hydraulic and
pneumatic & hydraulic actuators.
Outer Trunnion Ball
The trunnion ball is the standard deisign for ball valves, which guarantees
an easy assembling into valve, a wide surface for washers (reducing friction
and torque).The ball can only turn around its own axe (trunnion axe) and sealing
is guaranteed by the axial movement of the seats for springs or inline pressure.
The trunnion design is suggested for medium and big dimensions and enables to
avoid high torque during opening or closing phase withinline pressure. The critical
issue for these products consists in the poor material between the bore and the washer
area it occurs an easier deformation of the ball for high pressure and consequently
leakage between seats and ball.
Inner Trunnion Ball
This structure is suitable for small size valve or higher pressure
environment. With simple design and convenient maching, this
ball guarantees a stronger resistance of the ball than the outer,
and so less deformation in high pressure condition reducing the
risk of leakage between ball and seats. However, it's critical for
the valve assembling especially for big dimensions; limited space
Nitriding Thicken Stem Design
Factory Direct Sales
Q1. Are you a factory or trading company?
A: We are a factory specialized in manufacturing valves 20 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.
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 put our Logo on the valves?
A:Yes, we can totally produce products according to your special request, even manufacture them 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 our manufacturing.
DBV VALVE GROUP CO., LTD is manufacturer of valves.
Shanghai Factory : No.255 Shenjiabang Road, Baihe Town, Qingpu District,Shanghai,China.
If you are interested in 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.
Floating Ball Valve
GB/T 12237 /B/T 19672
API 608 /API 6D
Face To Face
GB/T 12221/ GB/T 19672
ASME B 16.10 / API 6D
ASME B 16.5/MSS SP-44/ASME B 16.47
Test & Inspection
JB/T 9092 GB/T19672
PS: We also can do according to customer's requirements.
1. Locking device to ensure the valve in a right position.
2. Blow-out proof stem: Prevent the stem blowing out caused by the abnormal increase of pressure.
3. Fire-proof Design: When the fire disaster occurs, and the non-metallic seat and sealing parts are damaged
under high temperature, our unique design of metal to metal auxiliary seal structure has an deep effect to
prevent the leakage of the media.
4. Anti-static Design: This structure ensures the safe use under the explosive working conditions.
5. Pressure-relief Design: This design achieves the reliable seal and long service life.
6. Standard ISO-5211 Disc Design: This structure facilitates customer's to replace the operation at any time.
Material for Main Parts
25+ENP, A105+ENP, 304, 316, LF2+ENP, etc.
17-4PH,304,316, 1Cr13, 2Cr13, 410,420,LF2 etc.
PTFE, RPTFE, DEVLON, PEEK, 304+ni55, 316+ni55, LF2+NI55, 304+STL,316+STL
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
内容附件: DBV Catalogue of Ball Valve