Double Block and Bleed Dbb Trunnion Ball Valve

In today's highly competitive Stainless Steel Knife Gate Valve, Through Conduit Knife Gate Valve, C95800 Wafer Check Valve market, our company strives for survival with quality and development with integrity. 'People oriented, scientific and technological development, the pursuit of perfection, customer first' is our company's business philosophy. In the process of development, our company has always adhered to the modern management mode. We provide personalized services according to the characteristics of different types of customers, and proactively formulate perfect service standards for more customers. Our Enterprise Core Principle: The prestige 1st; The quality guarantee; The customer are supreme.

Product Details

NSV Double Block and Bleed Ball Valves(DBB BALL VALVES) are mainly suitable for the instrumentation but also required as an alternative to the in-line installation of two valves.

DBB 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 between obturators(body port and ball,gate or needle valve),from the floating ball valve design,that with several different constructions.

Double block & bleed valves DBB are recommended for any pressure class and ensure long-lasting seal.

They can be supplied both in the Trunnion and in the Floating version.

These valves can be designed to meet with Customer’s requirements: for instance, they may be buried in the ground and made operable by the extensions.

Material: A105,F304,F316,ETC.
Size Range: 1/2"~2",large sizes on request
Pressure Rating: ASME CL, 150 to 2500lb.

Design Description:
- Integral,Two or Three Pieces Body
- Metal or Soft Seated
- Full or Reduced Bore
- Flanged or NPT Ends
- Anti Blow Out Stem
- Anti Static Device
- Fire Safe Design

Main applications in the petrochemical field:

· Cryogenic service.

· Low temperature.

· Ambient temperature.

· High temperature.

· Corrosive fluids.

· High pressures.

· Samplings from line.

· Fluids injection.

In conditions of space constraint its more and more important to find compact soluction.As you can see here above one valve is performing the same function of three valves all together and allows a full safety on the line during maintenance operations, not to consider the important reductions of the leakage points on the line.DBB/SBB valves can be used for CHEMICAL,INJECTION AND SAMPLING(through a quill),PRESSURE CONNECTIONS(instrumentation mainly),PROCESS ISOLATION(located in primary process stream).

DBB ball valves produced by NSV are provided in accordance with the following certifications:

· ISO (International Organization for standardization)

· PED (Pressure Equipment Directive)

FAQ

1. Q: What’s the brand of your company can supply ?

A:NSV or OEM service.

2. Q:Is there have MOQ?

A：No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.

3. Q: What’s your payment terms?

A: As our company’s policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.

2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.

3)L/C at sight for the order value above $50,000.00USD.

We adhere to the honest and pragmatic style, create value with products and services, and strive to be the leader of high-quality Double Block and Bleed Dbb Trunnion Ball Valve. As a way to make use of the resource on the expanding information and facts in international trade, we welcome prospects from everywhere on the web and offline. With the rapid development of the market attracting more and more participants, market competition has become increasingly complex and fierce.