| Cavity | T-21A |
| Series | 1 |
| Capacity | 60 L/min. |
| Maximum Operating Pressure | 350 bar |
| Pilot Ratio | 3:1 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 0,07 cc/min. |
| Valve Hex Size | 22,2 mm |
| Valve Installation Torque | 41 - 47 Nm |
| Model Weight | 0.18 kg. |
| Seal kit - Cartridge | Buna: 990021007 |
| Seal kit - Cartridge | EPDM: 990021014 |
| Seal kit - Cartridge | Polyurethane: 990021002 |
| Seal kit - Cartridge | Viton: 990021006 |
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