Stainless Steel Hydraulic Float Valve DN50-DN200 Automatic Water Tank Level Control Valve

Product Overview

The Hydraulic Water Level Float Valve is a pilot-operated diaphragm valve designed for automatic water level control in tanks and reservoirs. It integrates a main valve, a regulating needle valve, and a float pilot valve. As the water level changes, the float rises or falls, piloting the main valve to open or close, thereby maintaining a preset water level without the need for external power. This valve features precise control, stable operation, and long service life. Available in a wide range of materials including ductile iron, cast steel, and stainless steel to suit various water quality conditions.

Technical Specifications

Stainless Steel Hydraulic Float Valve

Key Features

• Accurate Level Control: The float pilot precisely senses water level changes, ensuring the tank maintains a stable preset level.
• Hydraulic Drive: Utilizes line pressure for operation, requiring no external electrical power, making it safe and energy-efficient.
• Durable Materials: Constructed with corrosion-resistant materials such as EPDM seals and stainless steel stems for long-term reliability.
• Low Maintenance: Simple structure with minimal moving parts reduces failure rates and maintenance costs.
• Versatile Sizing: Available in sizes from 2 inches to 10 inches (DN20–DN800) to fit various tank capacities.
• Customizable Options: Offers OEM services for material, connection, and coating to meet specific project requirements.

Applications

• Water Supply Systems: Automatic water level control in municipal water storage tanks and elevated water towers.
• Industrial Water Tanks: Maintaining levels in cooling water basins, process water tanks, and fire water storage.
• HVAC Systems: Fill water control for closed-loop chilled/hot water expansion tanks.
• Agricultural Irrigation: Level management in reservoir ponds and irrigation channel head tanks.
• Fire Protection: Maintaining required water levels in fire reserve tanks and roof fire water tanks.

Stainless Steel Hydraulic Float Valve

Packing and Shipment

• Packing Method：Standard export wooden crates or pallets; rainproof and moisture-proof.
• Shipment：Supported by sea, railway, air, or road transport to designated ports. Container loading and securing services provided to ensure safe transit.

Payment Terms

• T/T, L/C at sight, Western Union, PayPal, Credit Card, etc.

Company Profile

Luoyang Datang Energy Tech Co., Ltd is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for water treatment, chemical, oil & gas, HVAC, and industrial piping systems worldwide. All products are manufactured to international standards with CE and ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², and 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.

Stainless Steel Hydraulic Float Valve

FAQ

Q1: Can this float valve be used for seawater or corrosive media?
A1: The standard configuration is for fresh water. For seawater or mildly corrosive media, we offer customization with full stainless steel (316L) body and special sealing materials.

Q2: How to select the correct valve size (DN) for my tank?
A2: Size selection is determined by the inlet pipe diameter, required flow rate, and working pressure. Generally, the valve size matches the pipeline. Please provide your operating parameters, and our technical team will assist with selection.

Q3: What could cause the valve to fail to close or leak?
A3: Common causes include: 1) Stuck or damaged float; 2) Clogged needle valve; 3) Damaged diaphragm. Regular cleaning of the strainer and inspection of the float movement are recommended. Contact after-sales for a repair kit if the issue persists.

Q4: What is the maximum working temperature?
A4: The standard model operates at 0°C ~ 80°C. For higher temperatures (e.g., hot water systems), please consult us for high-temperature sealing materials.

Q5: What installation precautions are needed?
A5: 1) Flush the pipeline before installation to prevent debris from entering; 2) Mount the float horizontally inside the tank to ensure free movement; 3) Install a strainer and isolation valve upstream for maintenance access.

Stainless Steel Hydraulic Float Valve