CKD H0-03-215 2-Way Solenoid Valve

CKD H0-03-215 2-Way Solenoid Valve

The CKD H0-03-215 is a direct-acting, 2-way brass solenoid valve engineered for heavy-duty marine and industrial burner applications. Manufactured by CKD Corporation, this valve is primarily integrated into marine auxiliary boiler systems—specifically Sunflame burners (model SSR-1.5)—to control ignition fuel and pneumatic pilot lines. Built with a robust brass body and a continuous-duty coil, it reliably handles media pressures from 0 to 1.5 MPa. The Rc3/8 porting and 3.5 mm orifice provide optimal flow coefficients for atomized fuel or compressed air lines in high-vibration engine room environments.

Model Details

• Manufacturer: CKD Corporation (Japan)
• MPN (Manufacturer Part Number): H0-03-215
• Alternative Designations: HO-03-215, H003215, Sunflame SSR-1.5 ignition valve

Technical Specifications

Equipment Compatibility

• Target Systems: Marine auxiliary boilers, industrial incinerators, rotary cup burners.
• Primary OEM Compatibility: Sunflame Co., Ltd. (Burner Models: SSR-1.5, Rotary Cup Series).
• Part Number Cross-References: Sunflame PN: H0-03-215; MSC Kobe catalog references R606/G-1120.

Key Features

1. Zero Differential Pressure Operation: Direct-acting mechanism ensures reliable opening/closing from 0 MPa, essential for gravity-fed pilot oil lines.
2. High-Pressure Tolerance: Safely regulates media up to 1.5 MPa, preventing blow-by during main burner fuel pump surges.
3. Marine-Grade Coil: 100VAC (50/60Hz) continuous-duty coil resists thermal degradation and electrical fluctuations common in shipboard micro-grids.
4. Vibration Resistant: Machined brass body and encapsulated coil housing withstand the severe harmonic vibrations of auxiliary engines and boiler blowers.
5. Compact Integration: The Rc3/8 footprint allows drop-in replacement on crowded burner valve manifolds without pipe modification.

Applications

• Marine Auxiliary Boilers: Ignition burner fuel control and atomizing air regulation.
• Industrial Burner Systems: Pilot flame isolation and purging sequences.
• Incinerators: Waste oil line control and combustion air switching.
• Pneumatic Automation: General-purpose 2-way compressed air isolation up to 1.5 MPa.

Frequently Asked Questions

What happens if I use a 220VAC coil instead of the 100VAC H0-03-215?

Using a 220VAC coil in a 100VAC control circuit will result in insufficient magnetic flux, meaning the valve will fail to open against pressure. Always match the OEM 100VAC/110VAC specification.

Is the CKD H0-03-215 normally open (NO) or normally closed (NC)?

The H0-03-215 is a Normally Closed (NC) valve. It blocks media flow when de-energized and opens only when the 100V power is applied to the coil, providing fail-safe shutoff for fuel lines.

Can this valve handle heavy fuel oil (HFO)?

No. Due to its 3.5 mm orifice and standard brass/elastomer construction, it is designed for Marine Gas Oil (MGO), Marine Diesel Oil (MDO), air, or water. HFO requires larger orifices, steam tracing, and specialized high-temperature seals.

How do I fix a leaking CKD H0-03-215 valve?

Leakage is typically caused by debris on the plunger seal or a worn internal spring. Isolate the line, unscrew the coil and armature housing, and inspect the rubber seal at the plunger tip. If pitted, the plunger assembly must be replaced.