Key Features

  • 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 Open
  • Operation: Assisted Lift

1/2 Nylon solenoid valve 0-7 Bar 2/2 N/Open (NOPK15) 18mm

£134.27 incl. VAT £111.89 ex. VAT

-19% Was £165.62 incl. VAT

Brand: AAA Enterprise (Sunwell)

Model: NOPK15, RK15P

Stock: 138 in stock

Read Full Description

Description

1/2 Inch Nylon Normally Open Solenoid Valve – Zero Pressure 2/2 Way NO – Sunwell NOPK15


The Sunwell NOPK15 is a high-performance 1/2 inch normally open nylon solenoid valve designed for reliable operation with zero pressure differential. Its assisted-lift diaphragm design allows operation from vacuum or zero pressure, making it ideal for low-pressure water systems, reverse osmosis (RO) equipment, demineralised water, vacuum applications and light chemical processes.

In its de-energised state the valve remains open, closing only when the coil is energised. The corrosion-resistant nylon body and stainless steel internal components provide long service life whilst remaining lightweight and resistant to many slightly aggressive media.
Supplied with EPDM seals as standard, the NOPK15 is also available with optional NBR or FKM seals and an optional ATEX certified coil for hazardous area installations.

Features & Benefits

✓ Normally open (fails open) operation
✓ Zero pressure assisted-lift diaphragm design
✓ Suitable for vacuum and low-pressure systems
✓ Corrosion-resistant nylon body
✓ Stainless steel internal components
✓ EPDM seals as standard with optional NBR or FKM
✓ Continuous 100% duty rated Nass Magnet coil
✓ Optional ATEX certified coil
✓ DIN 43650A IP65 electrical connection
✓ Optional BSP, NPT or Rc threaded connections

Valve Specification

Function: 2/2 way normally open
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: 0–5 Bar
DC Coil: 0–5 Bar
Maximum Media Viscosity: 50 cSt
Opening Time: 0.2–0.5 seconds
Closing Time: 1–4 seconds
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
24VAC
48VAC
110VAC
230VAC
380VAC

Hazardous Area Option

Optional ATEX Ex mb certified coil available:
Ex mb IIC T4 Gb
Ex mb tb IIIC T130°C Db
Suitable for Zones 21 & 22
Maximum operating pressure with ATEX coil:
AC: 3 Bar
DC: 1 Bar
(without AC shading ring).

Media Compatibility

Suitable for:
Air
Water
Pure water
Demineralised water
Reverse osmosis (RO) water
Vacuum to 10⁻¹ Torr
Slightly aggressive fluids
Most gases compatible with the selected seal material and valve construction.

Pressure & Temperature

Working Pressure: 0–5 Bar
Media Temperature: Up to +60°C
Ambient Temperature: +4°C to +50°C.

Typical Applications

Normally open water control systems
RO water purification equipment
Demineralised water systems
Vacuum systems
Chemical dosing equipment
Water treatment plants
Industrial process control
Laboratory equipment 

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View Technical Specification

Technical Specification

Brand: AAA Enterprise (Sunwell)

Model: NOPK15, RK15P

Width: 56.00 mm

Height: 90.00 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 Open

Operation: Assisted Lift

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

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), Vacuum (Low), Water, Water (RO/Pure/Demin)

Options required: Anti Water Hammer, Mounting Bracket, Mounting Holes, Shading Ring - Silver

Orifice: 18mm