More Normally Open Plastic Water Solenoid Valves

Port Size

1/4 thread

valves with 1/4 inch threaded ports

1/4 Push Fit

6mm

8mm

3/8 thread

valves with 3/8 inch threaded ports

3/8 Push Fit

10mm

1/2 thread

valves with 1/2 inch threaded ports

15mm

3/4 thread

valves with 3/4 inch threaded ports

1 thread

valves with 1 inch threaded ports

11/4 thread

valves with 11/4 inch threaded ports

11/2 thread

valves with 11/2 inch threaded ports

Media

Body Material

Delrin (POM)

Nylon

Pressure Maximum

Seals

ECO

ECO – Epichlorohydrin Rubber (Epichlorohydrin - or Herchlor, Gechron or Hydrin). excellent resistance to acids, alkali's and ozone -35°C to +125°C

EPDM

EPDM (Ethylene Propylene Diene Monomer) - known as Ethylene Propylene terpolymer, Buna-AP, Dutral, Polysar-EDM, Royalene, Vistalon, Keltan, Epcar, Nordel or Epsyn). Good for hot and drinking water, Steam, Freon refrigerant gas and Air -40°C to +120°C (+150°C steam) Poor resistance to oils + fuels

FKM (Viton)

FKM Fluoro elastomer (Fluorocarbon) Viton® Dupont registered, known as Tecnoflon, Fluorel, Dai-El. Good for hot water, acid, alkali, oils, hydrocarbons and salt solutions, many aggressive chemicals, diluted acids, weak alkali's, mineral oils, aliphatic and aromatic hydrocarbons, chlorinated hydrocarbons, sunlight and ozone. -26°C to +205°C. Poor resistance to Ketone's and Acetone.

HNBR

HNBR (Hydrogenated Nitrile Butadine Rubber) also known as Therban, Zetpol or Tornac). Good for motor oils, sour gas, amine oil mixtures, oxidised fuels, lubricating oils, mineral based hydraulic oil, animal and vegetable oil, diesel fuel, ozone, dilute acids and bases, new bio-oils, H2S Hydrogen Sulphide and C02 carbon dioxide. -40°C to +150°C. Poor for concentrated alkali's, esters, alkyl phosphate, ethers, halogenated solvents, ketone's, halogenated hydrocarbons, solvents and flames.

Hypalon

Hypalon is a chlorosulfonated polyethylene (CSPE) synthetic rubber (CSM). Good for chemicals, ozone, ultraviolet light, oxidising agents, hot water, corrosive chemicals, low gas permeability, good electrical properties, low flammability. -35°C to +125°C. Poor to fair fuel resistance and its low temperature properties are generally limited.

NBR

NBR (Nitrile Buna Rubber) known as Nitrile Butadine, Buna-N, Hycar, Chemigum, Butakon, Breaon, Butacril, Paracil, Nipol, Perbunan, Krynac or Europrene-N. Good for Aliphatic Hydrocarbons, Petroleum, Fuels, Mineral Oil, Vegetable and Hydraulic Oil, Alcohol and many Acids. -35°C to +100°C. Poor for Ozone, Acetone, Methyl ethyl Ketone, Chlorinated Hydrocarbons, Ethers and Esters.

Neoprene

Neoprene known as CR or Chloroprene. Good resistance to Freon and ammonia, flames, excellent UV resistance, Ozone, oxygen and sunlight, tough, abrasion resistant and has a low compression set with an outstanding ability to adhere to metals. -20°C to +110°C.

Silicone

Silicone (VMQ) known as PVMQ, Silastic, Siloprene, Rhodorsil or Silplus. Good resistance to Oil, solvents, aniline alcohol, dilute acids or bases, benzene, toluene, petrol. -60°C to +230°C. Poor resistance Diesel, hot air, steam over 150 C, strong acids and bases.

VST

VST (Viton-Silicone-Teflon). Has enhanced chemical resistance compared to Viton, especially against aggressive chemicals like ketones, esters, and some organic acids. Combines the properties of Viton, silicone, and Teflon, offering improved flexibility, compression set resistance, and low-temperature performance compared to standard Viton. -40°C to 200°C

Voltage

Approvals

ATEX Zone II GD

hazardous area classification indicating a potentially explosive atmosphere with gases and dust present, requiring specific equipment for safe operation.

ATEX Exm

ATEX Protection by encapsulation ll 2 G Ex mb ll T4 Gb and ll 2 D Ex tb IIIC T130°C Db IP65

IP54

Dust protected and protected against splashing water

IP65

Dust tight and protected against water jets

IP67

Dust protected and protected against immersion in water

IPX0 (Faston Tag)

No protection against foreign object or water ingress.

CSA

CSA approval certifies products for safety and performance, conducted by the Canadian Standards Association.

UL

UL (Underwriters Laboratories) approval indicates that a product has met safety standards set by UL for electrical devices and components.

WRAS

WRAS approval ensures water fittings meet UK water regulations, safeguarding public health by preventing contamination, waste, and misuse of water supplies.

Orifice

11mm

Valve orifice or sealing face with diameter 11mm

15mm

Valve orifice or sealing face with diameter 15mm

18mm

Valve orifice or sealing face with diameter 18mm

20mm

Valve orifice or sealing face with diameter 20mm

23mm

Valve orifice or sealing face with diameter 23mm

25mm

Valve orifice or sealing face with diameter 25mm

28mm

Valve orifice or sealing face with diameter 28mm

35mm

Valve orifice or sealing face with diameter 35mm

Operation

Assisted Lift

Assisted lift solenoid valve assists in opening against pressure, ensuring reliable operation from vacuum to medium pressure systems.

Pressure Assisted

Operate via pilot pressure control and require a minimum pressure difference between inlet and outlet from 0.5 Bar.

Options required

Anti Water Hammer

Prevents or reduces water hammer caused by sudden changes in fast moving fluid flow.

Mounting Bracket

Valve has the facility to be supplied with a bracket for mounting and securing.

Mounting Holes

Supplied with additional threaded holes typically in the base, typically for securing to a baseplate.

Shading Ring - Silver

The copper shading ring in the solenoid tube has been replaced with silver. Typically used for RO water and aggressive media applications.

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