Description
The Sanlixin ZS1DF02N4K50 stainless steel solenoid valve is a robust 2/2-way, direct-acting, normally closed valve designed for automatic control of water and other compatible fluids.
Manufactured with an SS304 stainless-steel body, NBR seals and a 50mm orifice, this 2″ valve is designed for higher-flow commercial and industrial applications.
The valve remains closed when the solenoid coil is de-energised and opens when the correct electrical power is supplied. Its direct-acting design allows operation from zero differential pressure, making it suitable for systems where pressure conditions may vary.
With a Cv of 48, maximum operating pressure of up to 10 bar on AC configurations, a maximum fluid temperature of 80°C, and a robust 4.8kg construction, the Sanlixin ZS1DF02N4K50 is suitable for industrial water treatment, reverse osmosis, filtration, water purification, tank filling, industrial plumbing and automated fluid-flow control.
Features:
- Sanlixin ZS Series.
- 2″ / 50mm connection.
- 50mm orifice.
- SS304 stainless-steel body.
- NBR seal.
- Normally Closed operation.
- Direct-acting design.
- 2/2-way valve.
- Zero differential-pressure operation.
- Maximum pressure up to 10 bar AC.
- Maximum fluid temperature of 80°C.
- F-class coil insulation.
- D-type coil.
- High flow capacity.
- Robust industrial construction.
- Automatic electrical operation.
- Suitable for water and compatible fluids.
- Suitable for commercial and industrial applications.
Specifications:
- Brand: Sanlixin.
- Series: ZS Series.
- Model number: ZS1DF02N4K50.
- Valve Type: Direct-acting solenoid valve.
- Valve Configuration: 2/2-Way.
- Operation: Normally closed (NC).
- Connection Size: 2″.
- Nominal Size: 50mm.
- Connection Type: Female threaded.
- Orifice Size: 50mm.
- Body Material: SS304 stainless steel.
- Seal Material: NBR.
- Flow Coefficient (Cv): 48.
- Minimum operating pressure: 0 bar.
- Maximum operating pressure – AC: 10 bar.
- Maximum operating pressure – Water/Liquids: 10 bar AC.
- Maximum operating pressure – Light oil: 7 bar AC .
- Maximum fluid temperature: 80°C.
- Coil Type: D type.
- Coil Insulation Class: F class.
- AC Power Consumption: 220 V / 50/60 Hz.
- DC Power Consumption: 20 W.
- Dimensions (L × W × H): 168 × 123 × 183 mm.
- Weight: Approximately 4.8 kg.
Applications:
- Reverse osmosis systems.
- Domestic RO systems.
- Commercial RO systems.
- Industrial RO systems.
- Water purification systems.
- Water filtration systems.
- Automatic filtration systems.
- Water treatment plants.
- Water shops.
- Bottled-water plants.
- Tank filling systems.
- Automatic water shut-off.
- Water dispensing systems.
- Irrigation systems.
- Automatic plumbing.
- Industrial process water.
- Commercial water systems.
- Fluid-control systems.
- Air and gas control.
- Compatible light-oil applications.
How it works:
The valve is normally closed, meaning that it automatically remains shut when there is no electrical power supplied to the solenoid coil.
When the valve is off:
The internal valve remains closed and stops the flow of fluid.
When the valve is energised:
The electromagnetic solenoid activates the internal mechanism, opening the valve and allowing fluid to flow.
Because this is a direct-acting valve, it can operate from zero differential pressure, making it useful in applications where there may not always be pressure available to assist valve operation.









