# Emerson Fisher 10A3261X012
> Type: Spiral radial piston seal ring, balanced trim piston ring for Fisher ET / ED Easy‑E 8″ Type E control valve
## Weight
**0.11 kg (110 g / 0.24 lb)**
## English Specification
1. **Function**
Spiral split radial piston seal ring, fitted between valve plug piston and cage bore. It seals the upper/lower pressure cavity of balanced trim to reduce internal leakage, works together with load ring 20A3267X012 you checked before.
2. **Dimension**
ID: 7.61 in, OD: 8.11 in, Thickness: 0.25 in
3. **Material**
Hastelloy C276 (N10276) + filled PTFE composite
4. **Applicable Valve**
Fisher ET, ED Easy‑E 8 inch Type E balanced cage-guided control valve
> Matching set: 10A3261X012 (piston ring) + 20A3267X012 (load ring)
5. **Temperature Rating**
-50 ℃ ~ +425 ℃ (-58 ℉ ~ +797 ℉)
6. **Pressure Rating**
Suitable for CL600 / PN100 trim service