Item Description
SIAMP Optima S — Dual-Flush Valve (2017 Model) — 32700410
Dual-Flush Water-Saving Adjustable Quiet Fill
Fully adjustable dual-flush valve for precise set-up and dependable performance. Designed for ceramic or plastic cisterns, with user-tuneable settings to optimise water use and flush quality.
Compatibility: For replacement or OEM use in ceramic and plastic cisterns. Push button is dual-flush and can be positioned ±15 mm off-centre. Suits lid holes from 16–50 mm (use the collar/shroud as appropriate).
Key features
- Dual-flush actuation (reduced / full)
- Fully adjustable valve for fine tuning after install
- Quiet-fill delayed-action operation to reduce noise and water use
- Button off-centre capability: ±15 mm
- Lid hole range: 16–50 mm (with or without collar)
- Actuation effort: < 20 N
- High flow rate: up to 3.5 L/s
- Brand/MPN: SIAMP · 32700410 (Optima S, 2017 model)
Adjustments
- Overflow height: adjustable in 10 mm increments
- Small flush volume: adjustable 2.0–4.5 L (no cutting required)
- Dead-water level: adjustable up to 60 mm
- Stirrup / clamp: adjustable in 10 mm increments for stable mounting
What’s in the box
- Optima S dual-flush valve assembly (2017 spec)
- Dual-flush push button with collar/shroud
- Foam pan seal to compensate minor pan irregularities
- Fittings and setup guidance
Technical summary
| Model / MPN | 32700410 — Optima S (2017) |
| Flush type | Dual (reduced / full) |
| Lid hole suitability | 16–50 mm (with/without collar) |
| Button position | Off-centre ±15 mm |
| Actuation effort | < 20 N |
| Overflow adjustment | Steps of 10 mm |
| Small flush setting | 2.0–4.5 L (tool-free, no cutting) |
| Dead-water level | Adjustable up to 60 mm |
| Flow rate | Up to 3.5 L/s |
FAQs
Is the push button included?
Yes — a dual-flush push button with collar/shroud is supplied with the Optima S valve assembly.
Will it work in plastic as well as ceramic cisterns?
Yes. It is suitable for both plastic and ceramic cisterns for replacement or OEM installations.
Can I adjust the water use?
Yes — small flush, overflow and dead-water level are all adjustable to optimise performance and water saving.
Need help figuring out if this product is right for your setup?
Send us your best bathroom selfies (or, you know, just your bathroom setup pics) to [email protected] or WhatsApp 07359 625424 us, and we'll help you flush your confusion away!