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Automatic Degassing Constant Pressure Water Refill Device

Automatic degassing constant pressure water refill device is a new type of equipment developed by our company using international advanced technology to realize the trinity of constant pressure, water supply and vacuum degassing in central heating and central air conditioning system.
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Product Description

Automatic degassing constant pressure water refill device

Introduction: Automatic degassing constant pressure water refill device is a new type of equipment developed by our company using international advanced technology to realize the trinity of constant pressure, water supply and vacuum degassing in central heating and central air conditioning system.

Function: The equipment plays a role in the system of pressure regulation, automatic water supply, expansion automatic water discharge, removal of free gas and dissolved gas in the system.

Types: atmospheric pressure type and forced type.

Main components: PLC control system, expansion tank, water pumps, degassing tank and other accessories.

Automatic Degassing Constant Pressure Water Refill Device

Types

Usage Scenario

Tank Volume Adjustment Range

Diameter

Working pressure

Atmospheric Pressure Type

Open chilled water systems,
such as cooling water systems.

150L-9000L

DN650, DN750, DN1000, DN1200, DN1500, DN1800, DN2000

/

Pneumatic Type

Closed system and hot water system.
Boiler closed water system.
Glycol system.
Closed chilled water system.

40-2000L

DN400, DN450, DN600, DN800, DN1000, DN1200, DN1400, DN1600

1.0MPa
1.6MPa
2.5MPa

Example:  ECH-DY-1-320; 1 - supplementary water pump flow; 320 - tank effective volume.

Main material of the expansion tank: Standard - Carbon steel tank; Optional - Stainless steel 304/316 (food-grade/high corrosion resistance).

Working Process of Automatic Degassing Constant Pressure Water Refill Device

Pressure Regulation and Degassing in Automatic Degassing Constant Pressure Water Refill Device

The PLC monitors system pressure and starts or stops makeup pumps according to the set range. When the system loses water, makeup water is introduced. When heated water expands, the tank accommodates the volume change. The degassing section is intended to treat free gas and dissolved gas; the expected degassing rate or residual gas value should be verified by factory data if required for the project.

Applications of Automatic Degassing Constant Pressure Water Refill Device

HVAC, Heating and Glycol Applications for Automatic Degassing Constant Pressure Water Refill Device

The Pneumatic Type is listed for closed hot water systems, closed chilled water systems, glycol systems and boiler closed water systems. The Atmospheric Pressure Type is listed for open chilled water and cooling water systems. Because open and closed circuits have different pressure requirements, the system type should be confirmed against the piping schematic before purchase.

Procurement Considerations for Automatic Degassing Constant Pressure Water Refill Device

Selection Data and Inspection for Automatic Degassing Constant Pressure Water Refill Device

Buyers should provide system water volume, static pressure, working and design pressure, temperature range, fluid type, glycol concentration if applicable, required makeup flow, pump head, power supply, control signal requirements, installation space and pipe connection size. Material, coating, pump brand, PLC brand and protection class should be listed in the quotation.

FAQ

Q1: Where is the constant pressure water makeup unit applicable?

A1: Suitable for closed water systems like HVAC, heating, and industrial circulation, ensuring stable pressure and automatic water replenishment.

Q2: What are the main components of the constant pressure water makeup unit?
A2: Key components include expansion tank, pump, PLC control system, and valves for automatic pressure stabilization and water supply.

Q3: What is the main material of the expansion tank?

A3: Standard - Carbon steel tank; Optional - Stainless steel 304/316 (food-grade/high corrosion resistance)


Q4: Can we customize the equipment?
A4: Yes.We offer OEM/ODM customizationbased on your needs.

Q5: Is your company a trading company or a manufacturer?
A5: We are a manufacturer with in-house production and export capability. Our Company integrates R&D, manufacturing, and international trade, offering
factory-direct prices and professional support.

Note: Parameters are for reference only; actual configuration and figures are subject to confirmation during order communication.

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