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Seals and Diaphrams

Seals and Diaphrams

Replacement Solenoid Valve seals, gaskets, O rings and diaphragms available in NBR, EPDM, Viton, FKM, Silicone and PTFE.
NBR - Nitrile Rubber is Butadiene Acrylonitrile, known as NBR or Buna-N, probably the most typical standard seal used for neutral fluids, gas and vacuum for general purpose applications. NBR will typically withstand temperatures up to +90°C.
EPDM - Ethylene Propylene Diene Monomer rubber, well suited for hot water, low pressure steam (130°C Max) excellent resistance to heat and offer excellent weather resistance. The maximum working temperature of EPDM is approximately 120-130 degrees Celsius. EPDM is unsuitable for most oils and fuels.
Viton - Viton is a brand name for a Fluoroelastomer, also known as FKM excellent heat resistance up to +150°C, excellent resistance to Acids, Alkali's, Oils, Hydrocarbons, Salt Solutions and Biofuels.
PTFE - Teflon is a brand name for PTFE (Polytetrafluoroethylene), resistant to most liquids. Not suited to liquid alkali's and Fluorine. PTFE is not flexible, so this limits is sealing capabilities for certain applications. PTFE temperatures up to +230°C and cryogenic applications down beyond -200°C. PTFE is the preferred seal for very high pressure solenoid valves, aggressive and corrosive media and extreme temperature applications such as high pressure steam. Virgin PTFE accepted by FDA for food use.
Silicone - (VQM) elastomer seal wide working temperature range -54°C through to +232°C, but Silicone is a very soft material and therefore is not very good with higher pressure applications typically above 40 bar (depending on orifice size and design). Suitable for Ozone, Heat, Steam, Cold, Chemicals, Oils, Acids and Water

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Diaphragm VITON, EPDM or NBR for PU22003AR Shako Solenoid Valve
Viton, EPDM or NBR solenoid diaphragm to fit Shako PU220AR-03 Brass Solenoid Valve, will fit genuine..
£2.64
Ex Tax: £2.20
Diaphragm EPDM for PU225 and SPU225 Shako Solenoid Valve
EPDM diaphragm to suit solenoid valve SPU225 stainless steel and PU225 brass Solenoid Valve, will fi..
£5.32 £3.72
Ex Tax: £3.10
Diaphragm NBR for PU225 and SPU225 Shako Solenoid Valve
NBR diaphragm to suit solenoid valve SPU225 stainless steel and PU225 brass Solenoid Valve, will fit..
£5.32 £3.72
Ex Tax: £3.10
Diaphragm EPDM for PU220 and SPU220 Shako Solenoid Valve
EPDM solenoid diaphragm to fit Shako PU220A Brass and SPU220A stainless steel Solenoid Valve, will f..
£7.19 £5.03
Ex Tax: £4.19
Diaphragm NBR for PU220 and SPU220 Shako Solenoid Valve
NBR solenoid diaphragm to fit Shako PU220A Brass and SPU220A stainless steel Solenoid Valve, will fi..
£7.19 £5.03
Ex Tax: £4.19
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Nass Magnet system 8 armatures and spares
Nass Magnet system 8 2/2 way normally closed armature assembly with flange fitting with Brass o..
£9.30 £6.23
Ex Tax: £5.19
Diaphragm Viton for PU225 and SPU225 Solenoid Valve
Viton / FKM diaphragm to suit solenoid valve SPU225 stainless steel and PU225 brass Solenoid Valve, ..
£9.35 £6.54
Ex Tax: £5.45
Diaphragm VITON for PU220 and SPU220 Solenoid Valve
Viton / FKM solenoid diaphragm to fit Shako PU220A Brass and SPU220A stainless steel Solenoid Valve,..
£10.92 £7.64
Ex Tax: £6.37
Armature Normally Closed Shako 2/2 Way 225320PTFENC System 13
Solenoid valve armature assembly 2/2 way normally closed stainless steel Nass Magnet system 13 with ..
£38.28 £25.64
Ex Tax: £21.37
Armature Normally Closed Shako 2/2 Way 225320VNC System 13
Solenoid valve armature assembly stainless steel Nass Magnet system 13 2/2 way normally closed with ..
£38.28 £25.64
Ex Tax: £21.37
Armature Normally Open Tube 2/2 Way 225320VNO System 13
Solenoid valve normally open armature assembly stainless steel 2/2 way with FKM seals, suits all Sha..
£38.28 £25.64
Ex Tax: £21.37
Armature Normally Closed 2/2 Way with FKM Seals & Silver Shading Ring
Solenoid valve armature assembly stainless steel with Silver shading ring for RO water, demin water ..
£71.53 £47.93
Ex Tax: £39.94

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