DBL12 Threaded Ball Valve
Devinsan offers rapid isolation and control solutions engineered for quick installation and dependable on/off service in general utility and ancillary fluid lines. Designed for long operational life and space efficiency, these DBL12 Threaded Ball Valve units combine compact, lightweight construction with reliable quarter-turn action to meet the crucial demands of small-bore industrial piping.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Coating
Testing
DN 15 – DN 100
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 331 / EN 1983
DIN 3202
EN ISO 228-1 Threaded
Industrial Epoxy
EN 12266-1
Operation Versions
The DBL12 Threaded Ball Valve can be operated with a range of compatible accessories to suit different installation and automation requirements:
1. DVA10 Surface Box & Extension Spindle
2. DVA11 Telescopic Extension Spindle
3. DVA12 Electric Actuators
4. DVA13 Pneumatic Actuators
5. DVA14 Gear Box
6. DVA15 HandWheel
These accessories allow the valve to be adapted for manual, geared, pneumatic, or electric operation, ensuring precise control and reliable performance in both industrial and commercial systems.
Application Areas
The DBL12 Threaded Ball Valve is widely used across diverse industrial and commercial sectors, delivering reliable flow control and long‑lasting performance.
1. Water and Wastewater Systems
2. Chemical Industry
3. Food and Beverage Industry
4. Pharmaceutical Industry
5. Oil and Gas Industry
6. HVAC (Heating, Ventilation, Air Conditioning) Systems
In these applications, this type DBL12 Threaded Ball Valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DBL12 Threaded Ball Valve is a highly versatile isolation valve specifically engineered to provide immediate, reliable shut-off service using standard threaded end connections. Designed to meet the stringent demands of various commercial and light industrial infrastructure, this valve delivers excellent operational reliability, space-saving design, and long-term durability across HVAC, pneumatic, and general utility applications.
At the core of the DBL12 Threaded Ball Valve is its precision-machined rotating ball and resilient seating. The quarter-turn operation ensures fluid flow is started or stopped instantly, a major advantage over multi-turn gate valves. The design minimizes internal components and ensures a tight, bubble-tight seal when the valve is in the closed position, providing reliable isolation for downstream service or system components.
Manufactured from high-strength, corrosion-resistant materials (such as brass or stainless steel) and built with a robust body, the DBL12 Threaded Ball Valve is designed to withstand continuous system pressure and demanding environments common in ancillary piping. The ease of threaded connection drastically simplifies installation, particularly in maintenance or repair scenarios where rapid in-line access is required without complex flange bolting.
The DBL12 Threaded Ball Valve is ideally suited for applications in compressed air headers, chemical injection systems, sampling points, drainage systems, and any low-to-medium pressure utility line where swift manual operation and minimal installation effort are essential. Its high reliability and cost-effective design make it a preferred choice for engineers seeking a high-integrity, standards-compliant solution for routine, non-critical process control.
In summary, the DBL12 Threaded Ball Valve offers an optimal combination of rapid isolation, compact design, and exceptional ease of installation. With its reliable quarter-turn action, durable construction, and simple threaded ends, this unit stands as a trusted solution for general fluid control and system isolation requirements worldwide.
1. General Information
The DBL12 Threaded Ball Valve is designed for on/off service requiring quick, secure installation using standard pipe threads. Proper installation is essential to guarantee safe operation, long service life, and efficient, leak-free performance.
2. Safety Precautions
Installation must be performed by qualified personnel only.
Ensure strict compliance with all local safety regulations and standards concerning working with pressurized and potentially hazardous fluid systems.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline section is fully depressurized and drained before attempting to install the DBL12 Threaded Ball Valve.
3. Pre-Installation Checklist
Inspect the DBL12 Threaded Ball Valve for any visible damage during transport or storage, paying attention to the threads and handle mechanism.
Check that the valve type, size, and pressure rating match the system requirements.
Verify that the valve ball and interior are clean and free from debris.
Confirm that the mating pipe threads are clean, undamaged, and correctly sized for the valve. Ensure the valve handle has sufficient clearance for a full 90-degree turn in both the open and closed positions.
4. Installation Procedure
Positioning: Install the DBL12 Threaded Ball Valve ensuring the flow direction aligns with the valve’s through-bore. The valve is typically bi-directional and can be installed in horizontal or vertical pipelines.
Use the appropriate thread sealant (e.g., PTFE tape or pipe compound) suitable for the medium and operating conditions.
Align the valve precisely with the pipe end and tighten using an appropriate tool on the body flats, avoiding excessive force that could distort the valve body or damage the pipe threads. Do not use the valve body or handle as leverage during tightening.
5. Post-Installation
Slowly reintroduce fluid and pressurize the system, checking immediately for leaks around the threaded connections and the stem/packing area. If leakage is detected, depressurize the system immediately and inspect/re-apply the thread sealant and re-tighten. Record the installation details, date, and final notes for documentation purposes.
Proper maintenance extends the service life of the DBL12 Threaded Ball Valve and ensures reliable shut-off and continuous operation. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DBL12 Threaded Ball Valve exterior regularly (e.g., monthly) for signs of external leakage, especially around the threaded pipe joints and stem packing. Operate the valve (full open to full closed) periodically to prevent media buildup around the ball and seat seals, maintaining smooth quarter-turn operation.
2. Inspection Schedule
Monthly, check the valve exterior for external leaks around the threaded connections and stem packing area.
Quarterly, check the functionality of the locking device (if applicable) and the ease of the quarter-turn operation.
Annually, perform a detailed inspection of the seals and ball surfaces by checking for any signs of internal leakage (flow when closed).
3. Lubrication
The DBL12 Threaded Ball Valve generally utilizes self-lubricating PTFE/TFM seats and seals. The stem packing should be inspected, and adjusted or replaced if leakage is present; external lubrication is not required for the internal ball mechanism.
4. Seal and Gasket Replacement
Replace the stem seals (packing) immediately if external leakage is observed. The internal ball seats should be replaced if internal leakage (flow when closed) is detected during a pressure test (replacement typically requires removing the valve from the line). Always isolate the valve and fully depressurize and drain the line before attempting any maintenance work requiring disassembly.
5. Cleaning
Keep the exterior of the DBL12 Threaded Ball Valve clean to prevent surface corrosion, particularly at the pipe joint threads. If media buildup is suspected, the valve can be cleaned internally by flushing the line or by removing it for external cleaning (when isolated and safe).
6. Storage and Spare Parts
Store spare parts (gaskets, replacement seats, packing) in a dry, clean, and cool environment, away from direct sunlight and temperature extremes. Maintain a detailed record of all inspections, internal part replacements, and repairs performed on the DBL12 Threaded Ball Valve unit.
We prioritize quality at every stage of production to deliver durable, safe, and efficient products. Our continuous improvement and strict quality controls keep us at the forefront of the industry.
Our certifications prove our commitment to excellence and compliance with international standards, ensuring the safety and reliability of our products worldwide.
We continuously invest in innovation and quality to expand our certifications and meet evolving industry needs.
Frequently Asked Questions about the DBL12?
What are the main advantages of this valve?
The DBL12 Threaded Ball Valve offers rapid quarter-turn isolation and exceptional ease of installation via threaded connections, making it the fastest option for adding isolation capability to existing pipelines without complex welding or flanging work.
Why should I choose this product?
This valve delivers outstanding performance in both sealing and durability, making it a dependable choice for demanding applications. Its straightforward design facilitates easy installation, offering flexibility during system design. With a wide range of material options, it meets the needs of various infrastructure projects, from municipal water networks to industrial facilities.
What does the "Threaded" connection type mean for installation time?
The threaded connection means the DBL12 Threaded Ball Valve can be quickly screwed directly into a pipe using common tools, dramatically reducing labor time and cost compared to flanged or welded connections, especially in utility and auxiliary lines.
What is the typical pressure rating range for the DBL12 Threaded Ball Valve?
The pressure rating varies widely based on the size and material, but the DBL12 Threaded Ball Valve is typically used in the low-to-medium pressure range suitable for general utility and plumbing applications.
Is the DBL12 Threaded Ball Valve a full-bore design?
The DBL12 Threaded Ball Valve may be full bore in smaller sizes, but in general, threaded ball valves often have a slightly reduced bore to maintain body strength around the threads. Always check the specific technical datasheet for the exact bore size.
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