English
  • nybjtp
China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU Featured Image
  • China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU
  • China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU
  • China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU

China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU

Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

We always continually offer you the most conscientious purchaser services, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for Top Entry Valve, Double Flanged Floating Ball Valve, Three Way Ball Valve, If you are interested in our products, please feel free to send us your inquiry. We sincerely hope to establish win-win business relationships with you.
China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU Detail:

Double Block and Bleed Ball Valve

Double-Block-and-Bleed-Ball-Valve1

API6D DBB Ball Valve

Double-Block-and-Bleed-Ball-Valve2

Forged Double Block and Bleed Ball Valve

Double-Block-and-Bleed-Ball-Valve3

High Pressure DBB Ball Valve

Specification

Short Description: DBB valve is a “single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve, with a means of venting /beeding the cavity between the seating surfaces.
Size Range: 1/2”~16” (15mm~400mm)
Press. Rating: 150LB~2500LB
Connection Ends: Flange, Butt Weld, Socket Weld
Operator: Lever, Gear, Electric, Pneumatic etc.
Material: Body Materials: A105 (N), LF2, F304, F316, F51, F55 etc.Ball Materials: A105+ENP, F304, F304L, F316, F316L, F51, Inconel, etc.Stem Material: 17-4PH, XM-19, F304, F316, F51 etc.Seat Material: PTFE, RPTFE, DEVLON, NYLON, PEEK, etc.
Standard: Design: API 6D, ASME B16.34, API 608, BS EN ISO17292/ ISO14313Pressure and Temp. Range: ASME B16.34Inspection and Test: API598Flange Ends: ASME B16.5Butt Weld Ends: ASME B16.25,Socket Weld Ends: ASME B16.11
Thread Ends: ASME B1.20.1
Fire Safe: API 607
Design Feature: Full Bore or Reduce Bore Double Block & Bleed Design Emergency Sealant Injection Cavity Pressure Self Relief Blow-out Proof Stem Anti-fire Safe Design
Anti-static Device
Working Type: With a DBB valve, there are usually two unidirectional self-relieving seats. These seats do not rely on an outside mechanism to relieve pressure. In contrast, a DIB valve utilizes one or two bidirectional seats. The valve provides double isolation from pressure at both ends of the valve but cannot relieve body cavity pressure past the seats. DIB valves require an external relief system to relieve pressure buildup.
Applications: DBB and DIB valves are used in applications where critical isolation is needed to ensure that leakage does not occur. Both valves can be used in a variety of applications and markets, such as LNG, petrochemical, transmission and storage, natural gas industrial processes, mainline and manifold valves in liquid pipelines, and refined products transmission lines.Another application in which DBB and DIB valves are used is the meter calibration market. Every closed valve in the meter system must seal drop tight. Even a small leak will cause errors in the meter calibration, and the incorrect meter factor will persist until the next proving operation, costing significant sums. Choosing the correct API-verified DBB or DIB valve can help ensure correct calibration almost every time.
Product detail pictures:

China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU detail pictures

China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU detail pictures

China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU detail pictures

Related Product Guide:
Our target should be to consolidate and enhance the top quality and service of current goods, in the meantime frequently create new products to satisfy diverse customers' calls for for China wholesale Long Stem Ball Valve Factories – Double Block and Bleed Ball Valve – XIANGYU , The product will supply to all over the world, such as: Cambodia, Czech republic, Tajikistan, Our company promises: reasonable prices, short production time and satisfactory after-sales service, we also welcome you to visit our factory at any time you want. Wish we have a pleasant and long terms business together!!!
    • This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Ellen from Argentina - 2017.02.14 13:19
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Riva from Tajikistan - 2017.10.25 15:53
    Write your message here and send it to us

    Products categories

    Hit enter to search or ESC to close