Forged Steel Double Block and Bleed Dbb Ball Valve with Flange or Thread Ends
Product Introduction
In recent years, not only our business performance has been rising, but also our environmental protection concept has been improved and embodied in the production of Steam Boiler Relief Valve, Diaphragm Valve, Vacuum Butterfly Valve. We have designed several value-added services to enhance user satisfaction with proactive services. We have established a scientific and complete quality management and guarantee system, and sincerely hope to cooperate with friends from all parties with high-quality products and perfect after-sales service. Since the establishment of the company, we always take the attitude of 'I don't say if I can't do it well, and I'm responsible if I can't do it well' to provide products and services for our customers. We insist on the concept of "work efficiently and live happily", and we continue to invest in cultural and sports infrastructure, as well as cultural and sports activities for our employees.
Description & Features
Double Block and Bleed valves assure double isolation function thanks to two obturator inserted in a single body and they provide the bleed function by means of a bleed/vent system located btween obturators (body port and ball, gate or needle valve), from the floating ball valve design, DAGO DBB valves with several different constructions. Double fixed balls hinge on supports, and floating metal or soft seats, central needle vent valve
● Ball valve can be designed into a fire structure, when in case of fire and the sealing ring burned, each sealing parts of the ball valve can form a metal to metal hard sealing structure, effectively prevent the diffusion of the medium, prevent the expansion of fire.
● Ball valve can be designed anti-static structure, that is, the ball and stem, stem and valve body between the conductive spring, so that the valve in the process of opening the static electricity generated through the set of the static channel into the pipeline into the underground, to achieve the purpose of removing static electricity. Avoid electrostatic lighting flammable medium to ensure system safety.
● The installation in the field or to prevent non-staff misoperation, as well as in some large occasions of vibration by the impact of the handle is easy to produce misoperation of the valve, in the valve fully open or fully closed position without locking hole, when necessary, can be locked, play a role in safety insurance.
Specifications
Size Range | Body Material |
1/2"-10" DN15-DN250 | A105N, F304 (L), F316 (L), LF2, F11, F51 |
Pressure Rating | Ball Material |
Class150-Class2500 PN16-PN425 | A105+ENP, F304 (L), F316 (L), F51, etc. |
End Connection | Seat Material |
Flange (RF, RTJ), BW, SW, BSPT, NPT | (R) PTFE/ NYLON/ PEEK/ PPL |
Structure Style | Stem Material |
Full Port, Floating Ball | F6a, 304 (L), 316 (L) |
Actuator Options | Design Standard |
Lever, Worm Gear, Pneumatic, Electric | API 6D / API 608 |
Temperature Range | Face to Face Standard |
-46℃~550℃ | ASME B16.10, GB/T 12221, GB/T 15188.1 |
Connection Standard | Test Standard |
Flange Drilling: ASME B16.5 Butt Weld: ASME B16.25 | API 598 |
Brand | DAGO or OEM |
Test | 100% quantity tested before delivery |
Guarantee | 12 months from date of shipment or Negotiable |
MOQ | 1 Set |
Sample | Available |
Color | Customer required or manufacturer default |
Packing | Plastic bag wrapped inside, seaworthy wooden case outside |
Certificate | API6D, CE, TUV, ISO9001, ISO14001, ISO45001, Mill Test Certificate |
Country of Origin | Zhejiang, China |
HS Code | 848180 (universal), 8481804090 (China) |
Port | Shanghai or Ningbo |
Payment Terms | T/T, L/C, Western Union |
We have a series of Forged Steel Double Block and Bleed Dbb Ball Valve with Flange or Thread Ends of different prices, styles and specifications, and customers can choose the products that suit them according to different needs. We feel that our warm and professional support will bring you pleasant surprises as perfectly as fortune. We talk about efficiency in everything we do, and work to be effective, and to improve income with efficiency.
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