Bristan SK320078 Thermostatic Cartridge Piston
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Summary
Bristan SK320078 Thermostatic Cartridge Piston
Bristan SK320078 is a thermostatic cartridge piston for selected Bristan and Sirrus thermostatic shower valve cartridge assemblies. It is the internal piston that works with the thermostat element and spring to help the valve regulate mixed-water temperature.
The piston must move freely inside the thermostatic assembly. If the piston is worn, jammed or affected by debris or limescale, temperature control can become unstable. Check the piston, thermostat element, spring, cartridge seals and full cartridge assembly before ordering so the correct spare is selected for the exact valve version.
Technical Details
- Part Number: Sk320078
- Part type: thermostatic cartridge piston / piston assembly
- Application: selected Bristan and Sirrus thermostatic shower valve cartridge assemblies
- Servicing context: the cartridge is removed to access the thermostat, spring and piston assembly
- Maintenance note: the piston should move freely and suitable silicone grease can be used on cartridge O-rings during reassembly
- Standalone SK320078 dimensions were not verified; do not order this part from measurements alone
Confirmed Compatible Models
- Bristan OP TS1503 SCL C Opac Thermostatic Exposed Shower Valve with Lever and Shroud Spare Parts
- Bristan OP TS1503 EL C Opac Thermostatic Exposed Shower Valve with Chrome Lever Spare Parts
- Bristan MINI2 TS1203 CL C Opac Concealed Mini Valve with Lever Handles
- Bristan MINI2 TS1203 CH C Opac Concealed Mini Valve with Handwheel Shower Spare Parts
- Bristan MINI2 TS1203 EL C Opac Shower Thermostatic Valve Spare Parts
- Bristan PM SQSHXVO C Prism Shower Valve Spare Parts
- Bristan PM TLSHX C Prism Thermostatic Vertical Shower
- Bristan TS1503ECP-2000-MK [R2]
Ordering Check
- Match the exact Bristan or Sirrus valve model and revision before ordering because earlier and later valve versions can use different internal spare assemblies.
- If temperature regulation is poor, check whether the fault is with the piston, wax thermostat element, seals or complete thermostatic cartridge assembly rather than replacing parts by appearance alone.
Related Spares You May Need
- TACSIL 3g Premium Cartridge Silicone Grease - WRAS Approved
- Bristan SKSOLO-T3-1 Thermostatic Cartridge
- Sirrus SK1500-3 Thermostat and Piston (Bristan SK1500/3)
- Sirrus SK740012 Wax Thermostat Element
- Sirrus SK1503-2LP Thermostatic Cartridge Assembly for TS1503 and 1500 Series Shower Mixer Valves
- Sirrus SK971006 Colonial Cartridge WITH Wax Thermostat and Piston by Gummers / Bristan
- SK1500-1 Seal Kit (TS1500) for Sirrus, Bristan and Gummers Thermostatic Cartridges
- SK1200-1 Seal Kit for Sirrus, Bristan and Gummers 1200 Series Thermostatic Cartridges used in Mini Sequential Valves
Fast delivery
- UK delivery: £5.95 incl. VAT for this small packet item.
- For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
- If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.00pm, Monday - Friday.
- Next day delivery is available to select at an additional charge during the checkout.
- Worldwide delivery available — see our delivery page for details.
Returns
- 14 days 'risk-free' returns.
- Start a return within 14 days of receiving your order by calling 0121 705 0866 or using our contact page.
- Full returns information is available in our terms and conditions.
Payment methods
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- Cheque: dispatch takes place once payment has cleared
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