Description
3/8" Bronze Steam Solenoid Valve 0–10 Bar – Queen MK10S
High-Temperature Bronze Solenoid Valve for Steam, Hot Water & Industrial Process Control
The Queen MK10S is a heavy-duty 3/8" normally closed bronze solenoid valve designed for reliable automatic control of steam, hot water, thermal fluids and other compatible industrial media.
Featuring a robust bronze valve body, stainless steel internal components and PTFE sealing, the MK10S is engineered for demanding high-temperature applications with media temperatures up to +185°C.
Its assisted-lift diaphragm design operates from zero differential pressure, making it suitable for low-pressure systems where conventional pilot-operated solenoid valves may not function reliably.
With a 10mm internal orifice, Kv flow factor of 21.7 L/min and operating pressure range of 0–10 Bar, the MK10S provides dependable flow control for steam equipment, industrial heating systems and automated process machinery.
Valve Function & Operation
Function: 2/2 Way Normally Closed
Operation: Assisted Lift / Kick Pilot
Normal Position: Closed when de-energised
Energised Position: Open
Minimum Differential Pressure: 0 Bar
Operating Pressure: 0–10 Bar
The normally closed design automatically shuts off flow when electrical power is removed, making the MK10S suitable for applications requiring a closed valve during power loss.
Its assisted-lift mechanism allows operation without a minimum pressure differential, providing greater flexibility than conventional pressure-assisted pilot valves.
Ports & Flow Performance
Port Size: 3/8" BSP
Optional Threads: NPT or Rc
Internal Orifice: 10mm
Kv Flow Factor: 21.7 L/min
Flow rating is based on water at a 1 Bar pressure differential.
The 10mm orifice provides a relatively large flow path for a compact 3/8" valve, making the MK10S suitable for industrial steam and hot-water control applications.
Pressure & Temperature
Operating Pressure: 0–10 Bar
Media Temperature: -70°C to +185°C
Maximum Media Viscosity: 50 cSt
The broad manufacturer-specified media temperature range allows the valve to be considered for a variety of thermal applications, subject to compatibility with the complete valve assembly and selected operating conditions.
Construction & Materials
Valve Body: Bronze
Internal Components: Stainless steel
Sealing Material: PTFE (Teflon®)
Operation: Assisted-lift diaphragm
The bronze body provides robust construction for industrial fluid systems, while the PTFE seal offers excellent thermal resistance and compatibility with many commonly used process fluids.
Media compatibility should always be checked against the complete wetted construction, operating temperature and pressure.
Media Compatibility
Suitable for compatible:
✓ Steam
✓ Hot Water
✓ Cold Water
✓ Air
✓ Vacuum Applications
✓ Non-Aggressive Gases
✓ Industrial Process Fluids
✓ Compatible Fluids up to 50 cSt
For steam applications, ensure the selected operating conditions remain within the manufacturer's pressure and temperature limits.
Solenoid Coil & Electrical
Coil Type: M17
Insulation: Class H
Electrical Connection: DIN 43650A
Duty Rating: 100% Continuous Operation
Protection Rating: IP65
Available Voltages:
12V DC
24V DC
110V AC
230V AC
AC voltage options are supplied with rectified electrical operation as specified for the valve.
The Class H coil is designed for continuous-duty industrial operation, while the IP65 protection rating provides resistance to dust and water jets when correctly assembled with a suitable connector.
Typical Applications
✓ Industrial Steam Control
✓ Steam Heating Equipment
✓ Hot Water Circulation Systems
✓ Industrial Process Machinery
✓ Thermal Process Control
✓ Automated Fluid Shut-Off
✓ Industrial Cleaning Equipment
✓ Heating and Temperature Control
✓ OEM Steam Equipment
✓ Low-Pressure Fluid Systems
Why Choose the Queen MK10S?
The Queen MK10S combines robust bronze construction, PTFE sealing and high-temperature capability with the convenience of electrically operated flow control.
Its zero-differential-pressure assisted-lift design, 10mm orifice and 0–10 Bar operating range make it a versatile solution for industrial steam and hot-water systems.
For applications requiring a normally closed solenoid valve capable of handling steam temperatures up to +185°C, the MK10S offers a practical and reliable industrial control solution.
Free next day UK delivery.
Related Products & Categories
