DZ973H-6 DZ973H-10 DZ973H-16 remote control motorized stem knife gate valve

1. Introduction

The DZ973H series Remote Control Motorized Stem Knife Gate Valves are designed for precise and automated control of fluid flow in various industrial applications. These valves feature a robust knife gate design and a motorized stem for efficient and reliable remote operation. The series includes DZ973H-6, DZ973H-10, and DZ973H-16 models, each suitable for different pressure ratings.

2. Features

• Material: Stainless Steel body and gate (SS304/SS316).
• Design: Knife gate design to handle slurry, viscous, and abrasive fluids.
• Seal: Resilient or metal-to-metal seal options for tight closure.
• Actuation: Motorized stem for remote control operation.
• Connection: Flanged, wafer, or lugged ends for versatile installation.
• Pressure Rating: PN6 (6 bar), PN10 (10 bar), PN16 (16 bar).
• Standards: Manufactured according to industry standards (e.g., ISO, API).

3. Applications

• Mining industry.
• Wastewater treatment plants.
• Pulp and paper industry.
• Chemical processing.
• Power generation.

4. Technical Specifications

5. Installation Instructions

5.1 Preparation

1. Ensure the pipeline is clean and free of debris.
2. Verify that the valve specifications match the application requirements.
3. Check the motorized stem for proper configuration and voltage compatibility.

5.2 Alignment

1. Align the valve with the pipeline flanges.
2. Ensure proper alignment to avoid stress on the valve body and flanges.

5.3 Bolting

1. Secure the valve using appropriate bolts and nuts.
2. Tighten bolts evenly in a crisscross pattern to ensure a proper seal.

5.4 Electrical Connection

1. Connect the motorized stem to the power supply according to the manufacturer's wiring diagram.
2. Ensure all electrical connections are secure and properly insulated.

5.5 Testing

1. Test the valve for proper operation using the motorized stem.
2. Check for leaks and ensure the valve opens and closes smoothly.

6. Maintenance

6.1 Regular Inspection

• Periodically inspect the valve and motorized stem for signs of wear or damage.
• Check the gate, seals, and stem for any abnormalities.

6.2 Seal Replacement

• Replace the seals if leakage is detected.
• Use compatible seal materials for the specific media and operating conditions.

6.3 Motorized Stem Maintenance

• Follow the motorized stem manufacturer's maintenance guidelines.
• Ensure the motorized stem operates smoothly and is free from debris.

6.4 Gate Inspection

• Inspect the gate for wear and replace if necessary.
• Ensure the gate moves freely without obstruction.

7. Safety Precautions

• Ensure the pipeline is depressurized before performing any maintenance.
• Use appropriate personal protective equipment (PPE) when handling the valve.
• Follow all relevant safety standards and guidelines.
• Ensure all electrical connections are de-energized before maintenance.

8. Troubleshooting

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