Stainless Steel Forged Double Bleed and Double Block (DBB) Ball Valve
Product Introduction
Our company's mission is to wholeheartedly produce the best, distinctive, market-oriented and competitive Top Entry Ball Valve, Spring Return Ball Valve, Cast Steel Wedge Gate Valve. We advocate good and effective communication, respect each other's labor, and respect every companion who achieves results through his or her own efforts. We firmly believe that only by focusing on one profession and devoting ourselves to work seriously, we can manufacture high quality products to meet our customers' needs. Our product specification is complete, the enterprise technical force is abundant, has the strong design, the development ability.
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 will create high-quality brands and create a monument of Stainless Steel Forged Double Bleed and Double Block (DBB) Ball Valve industry and move forward forever. We are based on the principle of mutual win-win business cooperation and complementary advantages. Through the integration of a variety of modes, our company meets the personalized needs of different users.
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