Key Features

  • Assisted lift for low-pressure steam operation
  • Durable bronze body with stainless steel internals
  • High-temperature operation up to 185 °C
  • PTFE seals for long-term chemical and thermal resistance
  • Compact and robust design suitable for industrial use

1/2 Bronze Steam Solenoid Valve 0-10 Bar 2/2 Normally Closed

★★★★★ 4.3 / 5 (3 reviews)

£153.47 incl. VAT £127.89 ex. VAT

-27% Was £209.27 incl. VAT

Brand: Kuhnway Corporation (Queen)

Model: MK15S

Stock: 52 in stock

Read Full Description

Description

1/2 Inch Bronze Steam Solenoid Valve – Queen MK15S


The Queen MK15S is a 1/2" BSPT 2/2 way normally closed bronze steam solenoid valve designed for reliable control of steam, hot oils, water, air and compatible gases. Featuring an assisted-lift (kick pilot) operating principle, the valve opens from zero pressure differential while providing reliable performance up to 10 Bar. Its robust BC6 bronze body, stainless steel internal components and PTFE sealing make it ideal for steam systems, heating equipment and demanding industrial process applications.

Valve function & operation

Function: 2/2 way normally closed
Operating principle: Assisted lift (kick pilot)
Minimum operating pressure: 0 Bar
Port size: 1/2" BSPT
Optional threads: NPT or Rc

Pressure & Flow:

Steam: 0 to 10 Bar
Air & water: 0 to 8 Bar
Oil: 0 to 7 Bar
Orifice: 14 mm
Kv flow factor: 42.9 L/min
(Based on water with 1 Bar pressure drop.)
Maximum media temperature: +180°C
Ambient temperature: -20°C to +50°C
Maximum media viscosity: 50 cSt
Mounting position: Coil upright (±15° from vertical)

Construction & materials

Body: BC6 bronze
Piston: Stainless steel and bronze with PTFE sealing
Internals: Stainless steel
Tube: 304 stainless steel
Seals: PTFE with graphite impregnated PTFE gaskets

Media compatibility:

✓ Steam
✓ Hot and cold water
✓ Compressed air
✓ Vacuum (to 10 Torr)
✓ Inert gases
✓ Hot and light oils up to 50 cSt
✓ Fluids compatible with the valve materials

Coil & electrical

Standard coil: M17 19 Watt DC, 35 VA AC (26 VA holding)
Class H (180°C)
100% continuous duty rated
DIN 43650A connector
IP65 protection

Voltage options:

24V DC
24V AC (with rectifier connector)
110V AC
230V AC

Applications

Steam boilers and steam distribution
Heating and hot oil systems
Industrial process equipment
Autoclaves and sterilisation systems
Food processing machinery
Chemical processing
General industrial fluid control
Vacuum and low-pressure systems

Manufacturing quality

Manufactured using a high-quality BC6 bronze body with stainless steel internal components, the Queen MK15S has been designed for dependable long-term service in demanding industrial environments. Its assisted-lift operating principle provides reliable switching from zero pressure differential, making it particularly suitable for low-pressure steam, gravity-fed systems and vacuum applications where conventional servo-assisted valves cannot operate. The robust PTFE sealing system delivers excellent resistance to high temperatures and aggressive operating conditions.

Ordering information

Simply select the required voltage and thread type before adding the valve to your basket.

Related Products & Categories


Steam Solenoid Valves

Replacement Solenoid Coils

Electrical DIN43650 Connectors

View Technical Specification

Technical Specification

Brand: Kuhnway Corporation (Queen)

Model: MK15S

Width: 30.00 mm

Height: 120.00 mm

Depth: 63.00 mm

Weight: 0.95 kg

Valve / Product Type: Solenoid Valve

Body Material: Bronze

Voltage: 110vAC, 230VAC, 24vAC, 24vDC

Port Size: 1/2 thread

Function: 2/2 Failsafe Closed

Operation: Direct Acting

Pressure: 0.1 Bar (100 mBar), 0.2 Bar (200 mBar), 0.3 Bar (300 mBar), 0.4 Bar (400 mBar), 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar

Seals: PTFE (Teflon)

Approvals:: IP65

Media: Air, Fluid (Non Aggressive), Gases (Non Aggressive), Oils + Fuels 50cSt Max, Steam, Water

Orifice: 14mm

Reviews

★★★★★4.3 / 5 3 reviews

★★★★★

good 1/2 steam valve, strong bronze body, direct acting and good sealing. price OK, service very good. I expect if I buy larger quantity price can be improved on. Thanks for your assistance. A+ good

Reviewed on 12/12/2016 by Heath

★★★★★

Fantastic service, great valve too. Strong bronze body direct acting with PTFE seals, vents our system down to zero. Thanks.

Reviewed on 06/02/2017 by Bowl

★★★★★

Quick delivery - Great support - really nice bronze steam solenoid valve. Thanks hope to deal with you again ..once again thank you ..you are ⭐️

Reviewed on 01/06/2020 by Luca