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Valve seals, diaphragms & springs

Valve Seals, Diaphragms & Springs

Shop solenoid valve seals, diaphragms and springs for maintenance, repair and replacement. Available in NBR, EPDM, Viton and PTFE, these parts restore performance and extend valve lifespan across a wide range of applications.

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**Browse solenoid valve armature assemblies used as replacement internal components for solenoid valves.

Armature assemblies (also known as plungers) control the opening and closing of the valve and are critical for reliable operation.
These components are suitable for servicing and repairing 2/2 and 3/2 way solenoid valves.

Available in brass and stainless steel, with seal materials including NBR, Viton, EPDM and PTFE to suit different media and operating conditions.

Ideal for maintenance, repair and refurbishment of solenoid valves across industrial, pneumatic and fluid control systems.**
What is an Armature Assembly?
Internal moving component inside a solenoid valve
Moves when coil is energised
Opens/closes flow

Armature & Tube Assemblies

Filters

Price

Valve / Product Type

Angle Seat Valve0

Angle seat piston valves, air actuated globe valves.

Pressure Reducing0

Pressure reducing valves (PRV) reduce and maintain stable outlet pressure

Pressure Relief0

Safety pressure relief / pressure limiting valve (PLV), stays closed until pressure reaches set pressure - then quickly opens, releasing any excess pressure.

Pressure Sustaining0

Pressure sustaining / back pressure valve, maintains a minimum preset upstream (Inlet) pressure, valve will close if pressure drops to set pressure and reopens when inlet pressure increases again.

Solenoid Valve0

Valves controlled by electrical signal via a solenoid or electro magnet.

Port Size

M50

1/8 thread0

valves with 1/8 inch threaded ports

1/4 thread0

valves with 1/4 inch threaded ports

3/8 thread0

valves with 3/8 inch threaded ports

3/8 Flange DN100

1/2 thread0

valves with 1/2 inch threaded ports

1/2 inch Flange DN150

3/4 thread0

valves with 3/4 inch threaded ports

3/4 Flange DN200

1 thread0

valves with 1 inch threaded ports

1 inch Flange DN250

11/4 thread0

valves with 11/4 inch threaded ports

11/4 inch Flange DN320

11/2 thread0

valves with 11/2 inch threaded ports

11/2 inch Flange DN400

2 thread0

valves with 2 inch threaded ports

2 inch Flange DN500

21/2 thread0

valves with 21/2 inch threaded ports

21/2 inch Flange DN65 0

3 thread0

valves with 3 inch threaded ports

3 inch Flange DN80 0

4 inch Flange DN100 0

5 inch Flange DN125 0

6 inch Flange DN150 0

8 inch Flange DN200 0

10 inch Flange DN2500

12 inch Flange DN300 0

14 inch Flange DN350 0

16 inch Flange DN400 0

18 inch Flange DN450 0

20 inch Flange DN500 0

Media

Air0

Fluid (Non Aggressive)0

Fluid (Slight Acid/Alkali)0

Fluid (Stong Acid/Alkali)0

Fluid Thick 51>500cSt0

Gases (Non Aggressive)0

Gases (Slight Acid/Alakli)0

Gases (Strong Acid/Alkali)0

Oils + Fuels 50cSt Max0

Steam0

Vacuum (Low)0

Vacuum (Medium)0

Vacuum (High)0

Water0

Water (RO/Pure/Demin)0

Body Material

Aluminium0

Brass0

Ductile Iron0

PTFE0

Steel0

Stainless Steel0

Function

2/2 Failsafe Closed0

2 ports (inlet/outlet) with 2 positions (Open/Closed) - valve stays closed (Failsafe) requires power to open

2/2 Failsafe Open0

2 ports (inlet/outlet) with 2 positions (Open/Closed) - valve stays open (Failsafe) requires power to close

3/2 Normally Closed0

3 ports with 2 positions. Power off inlet closed, outlet open to exhaust - power on inlet open to outlet with exhaust closed.

Pressure

Vacuum0

Vacuum products including valves, filters, regulators for vacuum and high vacuum systems down to -101Kpa.

0.02 Bar (20 mBar)0

0.02 Bar = 20 millibars = 0.29psi = 2 Kpa

0.1 Bar (100 mBar)0

0.1 Bar = 100 millibars = 1.47 psi = 1kPa

0.2 Bar (200 mBar)0

0.2 Bar = 200 millibars = 2.94 psi = 20kPa

0.3 Bar (300 mBar)0

0.3 Bar = 300 millibars = 4.41 psi = 30 kPa

0.4 Bar (400 mBar)0

0.4 Bar = 400 millibars = 4.41 psi = 40 kPa

0.5 Bar (500 mBar)0

0.5 Bar = 500 millibars = 7.36 psi = 50 kPa

0.6 Bar (600 mbar)0

0.6 Bar = 600 millibars = 8.83 psi = 60 kPa

0.7 Bar (700 mBar)0

0.7 Bar = 700 millibars = 10.3 psi = 70 kPa

0.8 Bar (800 mBar)0

0.8 Bar = 800 millibars = 11.77 psi = 80 kPa

1 Bar0

1 Bar = 1000 millibars = 14.71 psi = 100 kPa = 0.1 MPa

1.2 Bar0

1.2 Bar = 1200 millibars = 17.65 psi = 1200 kPa = 0.12 MPa

1.3 Bar0

1.3 Bar = 1300 millibars = 19.12 psi = 1300 kPa = 0.13 MPa

1.4 Bar0

1.4 Bar = 1400 millibars = 20.59 psi = 1400 kPa = 0.14 MPa

1.5 Bar0

1.5 Bar = 1500 millibars = 22.07 psi = 1500 kPa = 0.15 MPa

1.6 Bar0

1.6 Bar = 1600 millibars = 23.54 psi = 1600 kPa = 0.16 MPa

2 Bar0

2 Bar = 2000 millibars = 29.42 psi = 2000 kPa = 0.2 MPa

2.5 Bar0

2.5 Bar = 2500 millibars = 36.78 psi = 2500 kPa = 0.25 MPa

3 Bar0

3 Bar = 3000 millibars = 44.13 psi = 3000 kPa = 0.3 MPa

3.5 Bar0

3.5 Bar = 3500 millibars = 51.49 psi = 3500 kPa = 0.35 MPa

4 Bar0

4 Bar = 4000 millibars = 58.84 psi = 4000 kPa = 0.4 MPa

4.5 Bar0

4.5 Bar = 4500 millibars = 66.20 psi = 4500 kPa = 0.45 MPa

5 Bar0

5 Bar = 5000 millibars = 73.55 psi = 5000 kPa = 0.5 MPa

5.5 Bar0

5.5 Bar = 5500 millibars = 80.91 psi = 5500 kPa = 0.55 MPa

6 Bar0

6 Bar = 6000 millibars = 88.26 psi = 6000 kPa = 0.6 MPa

6.5 Bar0

6.5 Bar = 6500 millibars = 95.62 psi = 6500 kPa = 0.65 MPa

7 Bar0

7 Bar = 7000 millibars = 102.97 psi = 7000 kPa = 0.7 MPa

7.5 Bar0

7.5 Bar = 7500 millibars = 110.33 psi = 7500 kPa = 0.75 MPa

8 Bar0

8 Bar = 8000 millibars = 117.68 psi = 8000 kPa = 0.8 MPa

8.5 Bar0

8.5 Bar = 8500 millibars = 125.04 psi = 8500 kPa = 0.85 MPa

9 Bar0

9 Bar = 9000 millibars = 132.39 psi = 9000 kPa = 0.9 MPa

10 Bar0

10 Bar = 147.1 psi = 1 MPa

12 Bar0

12 Bar = 176.52 psi = 1.2 MPa

13 Bar0

13 Bar = 191.23 psi = 1.3 MPa

14 Bar0

14 Bar = 205.94 psi = 1.4 MPa

15 Bar0

15 Bar = 220.65 psi = 1.5 MPa

16 Bar0

16 Bar = 235.36 psi = 1.6 MPa

17 Bar0

17 Bar = 250.07 psi = 1.7 MPa

18 Bar0

18 Bar = 264.78 psi = 1.8 MPa

20 Bar0

20 Bar = 294.2 psi = 2 MPa

25 Bar0

25 Bar = 367.8 psi = 2.5 MPa

30 Bar0

30 Bar = 441.3 psi = 3 MPa

50 Bar0

50 Bar = 735.5 psi = 5 MPa

100 Bar0

100 Bar = 1471 psi = 10 MPa

150 Bar0

150 Bar = 2206.5 psi = 15 MPa

Seals

CR0

CR or Chloroprene, excellent resistance to weathering, ozone, heat, oil, and various chemicals. -40°C to +121°C

ECO0

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

EPDM0

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)0

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.

HNBR0

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.

Hypalon0

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.

NBR0

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.

Neoprene0

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.

PTFE (Teflon)0

PTFE (Polytetrafluoroethylene) also known as Teflon® Dupont registered. Excellent resistance to almost every fluid or gas. -200°C to +230°C

Silicone0

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.

VST0

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

6vDC0

6 volts Direct Current

12vDC0

12 volts Direct Current

12vAC0

12 volts 50/60Hz Alternating Current

24vDC0

24 volts Direct Current

24vAC0

24 volts 50/60Hz Alternating Current

36vAC0

36 volts 50/60Hz alternating current

48vAC0

48 volts 50/60Hz alternating current

48vDC0

48 volts Direct Current

110vAC0

110 volts 50/60Hz Alternating Current

110vDC0

110 volts Direct Current

125vDC0

125 volts Direct Current

230VAC0

230 volts 50/60Hz Alternating Current

200vDC0

200 volts Direct Current

380vAC0

380 volts 50/60Hz Alternating Current

Approval: ATEX,WRAS,IP etc

ATEX Exm0

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

ATEX Exia0

ATEX protection by intrinsic safety, II 2 G Ex ia IIB/IIC T4 or T6.

IP650

Dust tight and protected against water jets

WRAS0

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

Orifice

0.6mm0

Valve orifice or sealing face with diameter 0.6mm

0.8mm0

Valve orifice or sealing face with diameter 0.8mm

1.0mm0

Valve orifice or sealing face with diameter 1mm

1.2mm0

Valve orifice or sealing face with diameter 1.2mm

1.3mm0

Valve orifice or sealing face with diameter 1.3mm

1.5mm0

Valve orifice or sealing face with diameter 1.5mm

1.6mm0

Valve orifice or sealing face with diameter 1.6mm

2.0mm0

Valve orifice or sealing face with diameter 2mm

2.3mm0

Valve orifice or sealing face with diameter 2.3mm

2.4mm0

Valve orifice or sealing face with diameter 2.4mm

2.5mm0

Valve orifice or sealing face with diameter 2.5mm

3.0mm0

Valve orifice or sealing face with diameter 3mm

4.0mm0

Valve orifice or sealing face with diameter 4mm

5.0mm0

Valve orifice or sealing face with diameter 5

6.0mm0

Valve orifice or sealing face with diameter 6mm

8.0mm0

Valve orifice or sealing face with diameter 8mm

10mm0

Valve orifice or sealing face with diameter 10mm

13mm0

Valve orifice or sealing face with diameter 13mm

15mm0

Valve orifice or sealing face with diameter 15mm

20mm0

Valve orifice or sealing face with diameter 20mm

25mm0

Valve orifice or sealing face with diameter 25mm

32mm0

Valve orifice or sealing face with diameter 32mm

38mm0

Valve orifice or sealing face with diameter 38mm

40mm0

Valve orifice or sealing face with diameter 40mm

50mm0

Valve orifice or sealing face with diameter 50mm

65mm0

Valve orifice or sealing face with diameter 65mm

80mm0

Valve orifice or sealing face with diameter 80mm

125mm0

Valve orifice or sealing face with diameter 125mm

150mm0

Valve orifice or sealing face with diameter 150mm

200mm0

Valve orifice or sealing face with diameter 200mm

250mm0

Valve orifice or sealing face with diameter 250mm

300mm0

Valve orifice or sealing face with diameter 300mm

350mm0

Valve orifice or sealing face with diameter 350mm

400mm0

Valve orifice or sealing face with diameter 400mm

450mm0

Valve orifice or sealing face with diameter 450mm

500mm0

Valve orifice or sealing face with diameter 500mm

Operation

Assisted Lift0

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

Direct Acting0

Directly controls flow without external pressure assistance operates from vacuum upwards.

Pressure Assisted0

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

Options required

Anti Water Hammer0

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

Bi-Directional Flow0

Can control flow in both directions

Degreased0

Oil and grease removed typically for oxygen or paint spray use.

Manifold0

A group of multiple valves together on one manifold, simple layout streamline control and space saving.

Shading Ring - Silver0

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

Shading Ring - without0

The copper shading ring in the solenoid tube has been removed, for DC voltages only and typically for aggressive media applications.

Y Pattern0

A Y-pattern valve is a valve with a Y-shaped body design, typically used for high-pressure applications to reduce pressure drop and turbulence, often found in steam systems.

Spares (Coils, Connectors, Seals)

Armature Assembly0

Manifold0

Nuts + bolts + plates0

Seals0

Springs0

Only Show Items In Stock

Hide spare parts

Showing 1 - 20 of 28 total products

Plunger / seal kit for JA stainless steel 2/2 solenoid valve £10.30 inc VAT

146 IN STOCK

Shako Seal Kit for 225 series Brass/StSt 2/2 Normally Closed £29.26 inc VAT

3477 IN STOCK

NBR Viton EPDM Diaphragm for Queen stainless solenoid valve £21.44 £15.80 inc VAT

466 IN STOCK

Shako seal kit 220 series Brass/StSt 2/2 Normally Closed £31.38 inc VAT

900 IN STOCK

Angle seat piston valve seal kit for 2/2 normally closed £27.80 inc VAT

17 IN STOCK

Shako 225 armature assembly set 2/2 Way Normally Closed £51.00 £35.70 inc VAT

1316 IN STOCK

MD Armature assembly to suit MD15-50 Queen solenoid valve £47.15 inc VAT

58 IN STOCK

MD Plunger for MD15-50 series Queen stainless solenoid valve £37.12 inc VAT

61 IN STOCK

CS Fluid Solenoid armature sets - N/Closed 13mm, 16mm + ATEX £65.33 £43.46 inc VAT

343 IN STOCK

Shako seal kit 220 series Brass/StSt 2/2 Way Normally Open £48.78 inc VAT

3 IN STOCK

Armature Assembly 2/2 Normally Closed PU225X high pressure £61.14 inc VAT

26 IN STOCK

Solenoid Plunger for SAP SAPS high pressure solenoid valve £30.59 inc VAT

1 IN STOCK

Z Tide Springs for RET, RFT + RLT pressure control valves £11.51 inc VAT

149 IN STOCK

Z-Tide NBR Viton Seal kits RET (PRV), RFT (BPV) + RLT (PLV) £50.10 £35.08 inc VAT

164 IN STOCK

Shako 225 armature assembly 2/2 Way Normally Open Solenoid £50.16 £34.14 inc VAT

878 IN STOCK

Shako seal kit for 225 series Brass/StSt 2/2 Normally Open £46.68 £31.12 inc VAT

2368 IN STOCK

Armature Assembly 2/2 Normally Closed PU220AR 1/8 + 1/4 £11.27 £8.29 inc VAT

878 IN STOCK

Shako Diaphragm PU22003AR solenoid valve VITON, EPDM or NBR £3.52 inc VAT

154 IN STOCK

Shako piston seal kit PU225S steam solenoid valve (ZGPU225S) £69.35 £52.01 inc VAT

2 IN STOCK

Manifold Blanking Plate for Shako MF, MFB (ZEMA, ZEBA, ZEFA) £4.32 £3.17 inc VAT

114 IN STOCK

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