
Forged Steel 3-PC Trunnion Double Block and Bleed Ball Valve Class150/Class300/Class600/Class900
Product Introduction
So that you can finest fulfill client's demands, all of our operations are strictly performed in line with our motto 'High Excellent, Competitive Price, Fast Service' for Steam Boiler Relief Valve, Concentric Butterfly Valve, Slurry Knife Gate Valves. Looking forward to the future, we will always adhere to the enterprise spirit of pragmatism, high efficiency and innovation and the enterprise tenet of seeking reputation by faith and customers by quality. Due to our responsibility, we have mission-like passion, a healthy body, and standardized management, paving the way for the healthy and quick development of the company. We can tailor the design according to your budget. We have established complete and detailed service files for all users, formed a perfect and scientific after-sales service system, with professional after-sales service team and telephone line.
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 continue to improve and innovate to produce high-quality and practical Forged Steel 3-PC Trunnion Double Block and Bleed Ball Valve Class150/Class300/Class600/Class900 that can be used in a variety of fields. We will continue to do our best effort to service and satisfy you! We retain improving upon and perfecting our items and repair.
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