DGV12 F4 Metal Seated Gate Valve
Devinsan F4 Metal Seated Gate Valves ensure durable, leak‑free shut‑off with robust metal‑to‑metal sealing. Designed for water supply, wastewater treatment, and fire protection systems, they deliver long service life and reliable performance in demanding conditions
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Coating
Testing
DN 40 – DN 400
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 1171 – EN 1074
EN 558 Series 14 – DIN 3202 F4
EN 1092-2 ISO7005-2 Flanged
Industrial Epoxy
EN 12266-1
Operation Versions
The DGV12 F4 Metal Seated Gate 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 DGV12 F4 Metal Seated Gate 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 F4 type gate valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DGV12 F4 Metal Seated Gate Valve is a robust isolation valve engineered for reliable shut‑off and precise flow control in demanding water supply, wastewater treatment, and fire protection systems. Designed to meet the requirements of modern infrastructure, this valve delivers consistent sealing performance, operational reliability, and long‑term durability across both industrial and municipal applications.
At the core of the DGV12 F4 Metal Seated Gate Valve is a precision‑machined metal wedge that moves vertically within the valve body through a threaded spindle mechanism. This proven design ensures smooth operation, low torque requirements, and a secure metal‑to‑metal seal, effectively preventing leakage even under high‑pressure or abrasive service conditions. The metal seating system provides complete flow isolation when closed, making it a trusted solution for critical fluid networks.
Manufactured from corrosion‑resistant materials and built with a heavy‑duty cast iron body, the DGV12 F4 Metal Seated Gate Valve is designed to withstand harsh operating environments. Its compact F4 face‑to‑face dimensions allow seamless integration into pipeline systems, while straightforward maintenance reduces downtime and operational costs.
The DGV12 F4 Metal Seated Gate Valve is ideally suited for municipal water distribution, wastewater networks, fire safety installations, and industrial process systems, where durability and leak‑free operation are essential. Its versatility makes it a preferred choice for engineers and project managers seeking a standards‑compliant, long‑lasting solution for infrastructure performance.
In summary, the DGV12 F4 Metal Seated Gate Valve combines durability, efficiency, and safety. With its precision‑engineered metal sealing system, rugged construction, and ease of maintenance, it stands as a dependable solution for modern fluid control applications worldwide
1. General Information
The DGV12 F4 Metal Seated Gate Valve is designed for use in water distribution networks, water treatment plants, and other applications requiring reliable shut-off. Proper installation is essential to ensure safe operation, long service life, and leak-free performance.
2. Safety Precautions
Installation must be performed by qualified personnel only.
Ensure compliance with all local safety regulations and standards.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline is depressurized and drained before installation.
3. Pre-Installation Checklist
Inspect the valve for any visible damage during transport or storage.
Check that the valve type, size, and pressure rating match the system requirements.
Verify that the valve is clean and free from debris.
Confirm that the pipeline ends are properly aligned and free from burrs or sharp edges.
Ensure sufficient space is available for operation and maintenance.
4. Installation Procedure
Positioning: Install the valve in the correct flow direction as indicated by the arrow on the valve body. The valve can be installed in horizontal or vertical pipelines, with the spindle oriented vertically upward for optimal performance.
Pipeline Preparation: Ensure the pipeline is clean and free from dirt, sand, or foreign particles. Use proper gaskets suitable for the medium and operating conditions.
Mounting the Valve: Align the valve with the pipeline flanges. Insert bolts and tighten them crosswise in gradual steps to ensure even compression of the gasket. Do not use excessive force that may damage the valve body or flanges.
Operational Check: Open and close the valve fully to confirm smooth operation. Ensure the valve closes tightly without leakage.
5. Post-Installation
Slowly pressurize the system and check for leaks around the connections.
If leakage is detected, depressurize and re-tighten the bolts.
Record the installation details for documentation.
Proper maintenance extends the service life of the valve and ensures reliable performance. Follow the guidelines below:
1. Routine Operation
Operate the valve (open/close) periodically to prevent seizure and buildup of deposits on the metal sealing surfaces.
Avoid using the valve for throttling, as it is designed for on/off service.
2. Inspection Schedule
Monthly: Check for external leaks around body joints, stem packing, and flange connections
Quarterly: Operate the valve fully open and fully closed to verify smooth operation
Annually: Perform a detailed inspection including stem, spindle, and seating surfaces for wear or corrosion
3. Lubrication
If applicable, lubricate the stem nut or gearbox according to manufacturer’s recommendations
Ensure moving parts remain free of dirt and corrosion
4. Seal and Gasket Replacement
Replace stem seals, O‑rings, and gaskets if leakage or wear is observed
Always depressurize and drain the pipeline before performing any maintenance work
Only use original spare parts to guarantee compatibility and reliability
5. Cleaning
Keep the exterior of the valve clean to prevent corrosion
In aggressive environments, consider applying additional protective coating or insulation
Inspect metal seating surfaces for scaling or deposits and clean if necessary
6. Storage and Spare Parts
Store spare parts in a dry, clean environment, away from direct sunlight
Maintain a record of all inspections, repairs, and replacements
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 DGV12?
What are the main advantages of this valve?
The DGV12 F4 Metal Seated Gate Valve offers several key advantages that make it a reliable choice for demanding applications. Its robust cast iron body and precision‑machined metal‑to‑metal sealing system ensure long service life and dependable shut‑off, even under high pressure or abrasive conditions. The valve is highly resistant to wear, corrosion, and scaling, which reduces maintenance needs and guarantees consistent performance over time. Thanks to its compact F4 face‑to‑face dimensions, it integrates easily into pipeline systems, while its straightforward operation and low torque requirements provide efficiency and ease of use. Altogether, the DGV12 F4 combines durability, reliability, and practicality, making it a trusted solution for water supply, wastewater treatment, fire protection, and industrial networks.
Why should I choose this product?
The DGV12 F4 Metal Seated Gate Valve is designed to give you confidence in critical applications where reliability and durability matter most. Its metal‑to‑metal sealing system ensures secure shut‑off even under high pressure, abrasive media, or fluctuating flow conditions, making it ideal for demanding environments. With a robust cast iron body and corrosion‑resistant components, it delivers long service life and reduced maintenance needs. Thanks to its compact F4 face‑to‑face dimensions, it integrates easily into existing pipeline systems without requiring extra space. Altogether, this valve combines strength, reliability, and ease of operation, making it a trusted choice for water supply, wastewater treatment, fire protection, and industrial networks.
What makes the DGV12 F4 Metal Seated Gate Valve different from other gate valves?
The DGV12 F4 features a precision‑machined metal‑to‑metal sealing system that ensures reliable shut‑off even under high pressure and abrasive conditions. Its robust cast iron body and compact F4 dimensions make it both durable and easy to integrate into pipeline systems.
In which applications is the DGV12 F4 Metal Seated Gate Valve most commonly used?
This valve is widely used in municipal water distribution, wastewater treatment plants, fire protection networks, and industrial process systems where long service life and leak‑free operation are essential.
How does the DGV12 F4 Metal Seated Gate Valve ensure long‑term reliability?
Its heavy‑duty cast iron body, corrosion‑resistant components, and precision metal seating surfaces are designed to withstand harsh environments. Combined with low maintenance requirements, these features guarantee consistent performance and extended service life.
Why is the DGV12 F4 Metal Seated Gate Valve considered a reliable ductile iron valve?
The DGV12 F4 is manufactured with a robust ductile iron body that provides strength and durability for demanding applications. Its precision‑engineered metal to metal sealing system ensures secure shut‑off and long service life, even under high pressure or abrasive conditions, making it a trusted choice for water, wastewater, and fire protection networks.
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