Key Features

  • 1/2" Nylon Solenoid Valve
  • 2/2 Way Normally Closed
  • Zero Pressure Assisted Lift
  • No Minimum Pressure Required
  • Vacuum Capable to 10⁻¹ Torr
  • AC Pressure 0–7 Bar
  • DC Pressure 0–2 Bar
  • 18mm Full Flow Orifice
  • 57.2 L/min Water Flow
  • Glass Reinforced Nylon Body
  • Stainless Steel Internals
  • EPDM Seals as Standard
  • Optional NBR & FKM Seals
  • RO & Demineralised Water
  • Media Viscosity Up to 50 cSt
  • Media Temperature +4 to +60°C
  • 15W AC Nass Magnet Coil
  • 18.5W DC Nass Magnet Coil
  • 100% Continuous Duty Rated
  • DIN 43650A Electrical Connection
  • IP65 Protection With Connector
  • Optional ATEX Coil Available

Description

1/2 Inch Nylon Solenoid Valve – Zero Pressure 2/2 Way NC – Sunwell PK15


The Sunwell PK15 is a high-performance 1/2 inch nylon solenoid valve designed for reliable operation with zero pressure differential. Its assisted-lift diaphragm design allows the valve to open from vacuum or zero pressure, making it ideal for low-pressure water systems, demineralised water, reverse osmosis (RO) equipment, vacuum applications and light chemical processes.

The corrosion-resistant nylon body combined with stainless steel internals provides excellent durability while keeping weight to a minimum. EPDM seals are supplied as standard, with optional NBR or FKM seals available for wider media compatibility.
Available with AC or DC coils, the PK15 features continuous 100% duty operation, DIN 43650A electrical connection and an optional ATEX certified coil for hazardous area installations.

Valve Specification

Function: 2/2 way normally closed
Operation: Assisted-lift diaphragm (zero pressure rated)
Port Size: 1/2" BSP (optional NPT or Rc)
Orifice: 18 mm
Flow Factor (Kv): 57.2 L/min

Pressure Range:

AC Coil: 0–7 Bar
DC Coil: 0–2 Bar
Maximum Media Viscosity: 50 cSt
Opening Time: 200–400 ms
Closing Time: 1000–3000 ms
Mounting Position: Coil upright preferred.

Construction

Body: Glass reinforced nylon
Internal Parts: Stainless steel
Seal Material:
EPDM (Standard)
NBR (Optional)
FKM (Optional)
Shading Ring: Silver (AC) / None (DC)
Electrical Connection: DIN 43650A, IP65 with connector

Coil Specification

AC Coil: 15 Watt  Nass Magnet 
Class F (155°C)
100% continuous duty

DC Coil: 18.5 Watt Nass Magnet
Class F (155°C)
100% continuous duty

Voltages:

12VDC
24VDC
48VDC
110VDC
12VAC
24VAC
48VAC
110VAC
230VAC
380VAC

Hazardous Area Option

Optional ATEX Ex mb certified coil available:
Ex mb IIC T4
Ex mb tb IIIC T130°C Db
Suitable for Zones 21 & 22
Maximum operating pressure with ATEX coil:
AC: 2 Bar
DC: 1 Bar
(without AC shading ring).

Media Compatibility

Suitable for:
Air
Water
Demineralised water
Reverse osmosis (RO) water
Vacuum to 10⁻¹ Torr
Slight acids and alkalis
Light chemicals
Most gases and fluids compatible with the selected seal material.

Pressure & Temperature

Working Pressure:
0–7 Bar (AC)
0–2 Bar (DC)
Media Temperature: +4°C to +60°C
Ambient Temperature: +4°C to +50°C.

Typical Applications

Low-pressure water control
RO water purification systems
Demineralised water systems
Chemical dosing equipment
Vacuum systems
Water treatment
Laboratory equipment
Light industrial process control

Related Products & Categories




View Technical Specification

Technical Specification

Brand: AAA Enterprise (Sunwell)

Model: PK15

Width: 56.00 mm

Height: 114.00 mm

Depth: 71.00 mm

Weight: 0.50 kg

Valve / Product Type: Solenoid Valve

Body Material: Nylon

Voltage: 110vAC, 110vDC, 12vDC, 200vDC, 230VAC, 24vAC, 24vDC, 48vAC, 48vDC

Port Size: 1/2 thread

Function: 2/2 Failsafe Closed

Operation: Assisted Lift from 0 Pressure

Pressure: 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

Seals: EPDM, NBR, FKM (Viton)

Approvals:: ATEX Exm, IP65

Media: Air, Fluid (Non Aggressive), Fluid (Slight Acid/Alkali), Gases (Non Aggressive), Gases (Slight Acid/Alakli), Oils + Fuels 50cSt Max, Vacuum (Low), Water, Water (RO/Pure/Demin)

Options required: Mounting Bracket, Mounting Holes

Orifice: 18mm

Reviews

★★★★★4.0 / 5 1 reviews

★★★★★

Excellent valve for my RO water system, easy to order, arrived quickly, installed and working. If I need another 1/2" 2-way pure water valve I know where to come. Thanks. Mart.

Reviewed on 28/08/2015 by Martin

1/2 Nylon solenoid valve 0-7 Bar 2/2 way Normally Closed

★★★★★ 4.0 / 5 (1 review)

£99.64 incl. VAT £83.03 ex. VAT

-19% Was £122.89 incl. VAT

Brand: AAA Enterprise (Sunwell)

Model: PK15

Stock: 87 in stock

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