DFT15 G Q Blind Plug Piece
Devinsan offers reliable end-of-line sealing solutions engineered for secure, temporary or permanent closure and comprehensive pressure testing of pipe sections. Designed for simplified installation and enduring hydraulic integrity, these DFT15 G Q Blind Plug Piece units utilize a robust compression gland to meet the critical demands of modern municipal and industrial pipeline commissioning.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Coating
Testing
DN 50 – DN 400
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
Electrostatic Powder Epoxy
EN 12266-1
Application Areas
The DFT15 G Q Blind Plug Piece 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 DFT15 G Q Blind Plug Piece ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DFT15 G Q Blind Plug Piece is a high-performance terminal fitting specifically engineered to seal the plain end of a pipeline securely, typically for hydrostatic pressure testing or temporary line closure. Designed to meet the stringent demands of modern infrastructure, this specialized plug ensures rapid field installation, superior sealing integrity, and long-term durability in complex pipe commissioning and isolation scenarios.
At the core of the DFT15 G Q Blind Plug Piece is its robust gland and sealing ring mechanism. The plug features a segmented collar or gland that is mechanically tightened around the pipe end. This action compresses a high-grade elastomeric gasket onto the pipe surface, guaranteeing a leak-free mechanical seal capable of withstanding high system test pressures. This method allows for quick, reliable application without welding or complex flanging.
Manufactured from high-strength, corrosion-resistant materials and built with a heavy-duty body, the DFT15 G Q Blind Plug Piece is designed to withstand continuous pressure and challenging burial environments. The simple bolt-and-gland design simplifies field assembly, requiring minimal effort to achieve a high-pressure seal on standard pipe materials. The ability to quickly and securely seal a pipe end is crucial for maintaining the safety and integrity of the testing procedure.
The DFT15 G Q Blind Plug Piece is ideally suited for applications in new pipeline section testing, temporary isolation during phased construction, or for sealing off lines that are planned for future extension. Its wide-range adaptability and dependable sealing make it a preferred choice for engineers seeking a high-integrity, standards-compliant solution for long-term network closure and commissioning efficiency.
In summary, the DFT15 G Q Blind Plug Piece offers an optimal combination of pipe end versatility, structural sealing strength, and unparalleled speed of application. With its robust compression mechanism, durable construction, and focus on immediate high-pressure sealing, this unit stands as a trusted solution for modern fluid control and pipeline integrity requirements worldwide.
1. General Information
The DFT15 G Q Blind Plug Piece is designed for securely sealing plain-ended pipes, particularly for pressure testing purposes. Proper installation is essential to guarantee safe testing operations, long service life, and sustained 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 hydrostatic pressure testing and working with pressurized pipelines.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline section is fully depressurized and drained before attempting to install the DFT15 G Q Blind Plug Piece.
3. Pre-Installation Checklist
Inspect the DFT15 G Q Blind Plug Piece for any visible damage during transport or storage, paying attention to the gland segments and rubber gasket condition.
Check that the plug size and pressure rating match the pipe end and system requirements.
Verify that the interior and gasket seating area are clean and free from debris.
Confirm that the pipe end is clean, square-cut, and free from external burrs or damage where the gland will seat.
Ensure all necessary bolts and washers are available.
4. Installation Procedure
Positioning: Slide the DFT15 G Q Blind Plug Piece fully onto the pipe end.
Clean the exterior surface of the pipe end thoroughly to ensure optimal gasket sealing.
Align the plug precisely over the pipe end. Insert the bolts and tighten them sequentially and evenly in a cross-pattern to the manufacturer’s specified torque.
This uniform tightening compresses the gasket and mechanically locks the plug onto the pipe.
5. Post-Installation
Slowly introduce fluid (usually water) and pressurize the system, checking immediately for leaks around the circumference of the plug.
If leakage is detected, safely depressurize the system immediately and re-tighten the bolts following the cross-pattern sequence.
Record the testing details, maximum pressure achieved, and final bolt torques for documentation purposes.
Proper maintenance extends the service life of the DFT15 G Q Blind Plug Piece and ensures reliable sealing integrity during testing and isolation periods. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DFT15 G Q Blind Plug Piece area regularly (e.g., annually) for signs of external leakage, soil erosion around the joint, or movement of the pipe.
If the plug is used for long-term isolation, check the bolt tension periodically to ensure the mechanical seal remains secure.
2. Inspection Schedule
Monthly, check the visible bolts for signs of loosening or severe corrosion.
Quarterly, check the ground surface above the buried plug for signs of heaving or settling, which may indicate axial thrust movement.
Annually, perform a detailed inspection by excavating the joint (if buried) to check the gasket for deterioration and the bolts/bands for corrosion.
3. Lubrication
The DFT15 G Q Blind Plug Piece is a mechanical sealing device and requires no lubrication after installation.
The rubber gasket should be kept clean during storage and installation to ensure proper seating.
4. Seal and Gasket Replacement
The sealing gasket should be replaced if external leakage is observed that cannot be stopped by re-tightening the bolts to the specified torque.
The entire DFT15 G Q Blind Plug Piece should be replaced if the metal components show significant corrosion or structural deformation.
Always isolate and fully depressurize the pipeline section before attempting to disassemble the plug.
5. Cleaning
The exterior of the DFT15 G Q Blind Plug Piece should be kept clean before burial.
After excavation, clean the plug and inspect the coating integrity before reburial.
6. Storage and Spare Parts
Store spare parts (gaskets, bolts, coupling bands) in a dry, clean, and cool environment, away from direct sunlight, ozone, and temperature extremes, which can degrade the rubber.
Maintain a detailed record of all inspections, pressure tests, and maintenance performed on the DFT15 G Q Blind Plug Piece 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 DFT15?
What are the main advantages of this valve?
The DFT15 G Q Blind Plug Piece provides a simple, robust method for achieving a secure, high-pressure seal on the open end of a plain pipe, which is critical for hydrostatic testing and temporary system isolation.
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 "G Q" signify in the DFT15 G Q Blind Plug Piece designation?
“G Q” signifies Gland/Quick, referring to the fitting’s ability to achieve a secure seal quickly using its external mechanical compression gland, reducing the time required for pipeline testing and sealing procedures.
Does the DFT15 G Q Blind Plug Piece provide full axial thrust restraint?
Yes. The DFT15 G Q Blind Plug Piece is designed to provide substantial axial thrust restraint to contain the forces generated during hydrostatic testing, ensuring the plug remains firmly attached to the pipe end under high pressure.
Can the DFT15 G Q Blind Plug Piece be reused?
Yes. The DFT15 G Q Blind Plug Piece is a reusable fitting. It can be removed by loosening the bolts, cleaned, and then reinstalled on the same or compatible pipe end by replacing the elastomeric gasket if necessary.
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