Toto spares, Toto parts, Toto spare arts, Spare code no : TH675 - Piston Valve,
What is TOTO TH675 Piston Valve
- The listing “TOTO Piston Valve For Auto Clean U (For Tea100D Type) TH675” shows that TH675 is used in TOTO’s “Auto Clean U” series, likely for flush / cleaning mechanism in toilets.
- A spec sheet from MISUMI (a parts supplier) mentions for TH675:
- Full length: 38 mm
- Material: stainless steel + rubber (i.e. the piston body or stem is stainless, sealing parts are rubber or elastomer)
- It is marketed as “Piston Valve for Auto Clean U, TH675”
- In a TOTO parts / spare site, the Thai site lists TH675 as the piston / plunger set (ลูกสูบ) for TEA99 (i.e. flush valve / toilet model)
Thus, TH675 is a piston / plunger assembly used in TOTO automatic / self‑cleaning flush / cleaning valves (Auto Clean or similar series).
Key specifications / dimensions to note (from available data)
From the MISUMI listing:
- Length (overall): 38 mm
- Materials: Stainless steel + rubber substitute (i.e. elastomeric seals)
Beyond that, the full internal details (diameter, stroke, seal dimensions, spring force, matching valve housing dimensions) are not publicly given in sources I checked.
What more you need / what to verify
If you want to replace or check compatibility, here are the parameters you should verify:
ParameterImportanceHow to measure / requestOuter diameter (OD) / body diameterMust match the valve bore inside your flush valve housingMeasure bore and existing pistonInner diameter / rod / stem clearanceSo it moves freely without bindingUse a caliper or micrometerStroke (movement length)So the piston travels fully to open / closeCheck travel when the valve actuatesSeal / O‑ring dimensions & materialCritical for watertight sealingLook at existing seals or get datasheet from TOTOMaterialTo ensure corrosion resistance and longevityStainless + appropriate rubber seals is goodSpring force / bias (if applicable)Ensures it returns properly and seals under pressureSource from manufacturer or test behaviorInterface / seating geometryThe tip of the piston where it contacts seat (flat, conical, lip etc.)Inspect mating seat in valve.
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