Specifications
· Diameter: 5.4 mm
· Connection size: 1/2 inch to 2 inch
· Handle: 'T' type handle
· Filler: PTFE or graphite
Pressure Grade (PSI): 150 pounds to 10,000 PSI
· Temperature: up to 540°C
Product Overview
Made from a single-piece upsetting forging, our 'N' double-blocking discharge (DBB) valve is equipped with two needle valve-type main and secondary isolation valves, as well as one needle valve. With a range of different operating temperatures and configurations, our Double Cutoff Bleeding (DBB) valves are an outstanding leader in the market.
Oliver Valves Double Cutoff Bleeding (DBB) valves offer metal seats with a diameter of 5.4 mm, suitable for a variety of applications without the need for traditional single isolation valves.
Oliver Valves' standard 'N' DBB valves range from 150 pounds to 2500 pounds, but can also be rated to 10,000 PSI.
N-type forged DBB valves can be provided with stainless steel, carbon steel, duplex steel, super duplex steel and other materials (as required). We have a wide range of connection types and sizes, from flange, hub, threaded to welded. Standard temperature ranges up to 540°C (depending on the material). All NPT connection threads are machined with single point CNC.
All Oliver products have a BS EN 10204 3.1 certificate of material traceability and stress testing. All valve bodies are uniquely encoded and associated with their certificates of material and chemical analysis.
Significant advantages: weight and cost savings
· More compact unit: Compared to traditional connection methods, the valve integrates pipe isolation and instrument isolation functions into a single unit.
· Substantial weight reduction: This is significant on the top side of the platform when all pressure meter leads are taken into account. Typical installation weight is reduced from 33kg to 7kg, reducing weight by 75%.
· Solve the problem of horizontal pressure induced: The horizontal pressure induced pipe will generate bending moments, which may cause critical fractures at the pipe interface. Traditional methods usually require additional pillars to support, thereby further increasing weight. Integrated design effectively alleviates this problem.
· Significantly reduced cost:
o Compared to traditional installation methods, you can usually save more than 30% of your cost.
o For valves made of exotic materials for more stringent processes, cost savings are even up to 70%!
o The cost of a single factory test assembly is much lower than the cost of purchasing Pipeline Valvess, Instrumentation Valvess, flanges, connectors and flange sealing rings respectively.
o At the same time, it also saves management costs such as purchasing order processing and delivery department tracking of goods receiving parts.
o Lighter components also mean lower shipping costs.
o Overall, the increase in costs may account for 30% of the total cost of the traditional method.
Reliable Isolation and Safety: Double-blocking Bleeding (DBB) valves provide true isolation, ensuring maximum safety by preventing leakage between the isolation sections.
Compact and efficient design: These valves provide space-saving solutions that integrate isolation into a compact valve body for easy installation.
Designed for harsh environments: Our DBB valves are designed for high pressure applications and can operate reliably in extreme conditions, reducing maintenance needs.
