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Name: |
Cryogenic butterfly valve |
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Material: |
Body:WCB; Disc: WCB, Stem: 13Cr. Seat: SS304+graphite |
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Nominal Pressure: |
PN10 |
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Nominal Diameter: |
DN600-800 |
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End Connection: |
RF |
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Structure: |
Triple Eccentricity |
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Operation: |
Worm gear |
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Valve type: |
Industrial Valve |
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Working Temp.: |
-100℃~+750℃ |
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Design Standard: |
API 609 |
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Test / Inspection: |
API 598/ISO 5208 |
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Face To Face: |
API 609 |
PS: We also can do according to customer's requirements.
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.
One way flow/Single direction
The valve of DBV have beautiful surface with clearly words.
Leakage class:A (No leakage)
Raised Face
The Rasied Face is the most common type used in process plant applications.
Different types of flange faces are used as the contact surfaces to seat thesealing
gasket material Including:FF-flat face, RF-raised face, RJ-ring joint and so on.
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.
Product Comparison
Renewable Seal Ring Design
Pin Design
Factory Direct Sales
Factory Overveiw
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 Ihave 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
Company Profile:
DBV VALVE GROUP CO., LTD is manufacturer of valves.
Email: info@dbvvalve.com
Shanghai Factory : No.255 Shenjiabang Road, Baihe Town, Qingpu District, Shanghai, China.
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