A screw-in, cartridge-style, pilot-operated, spool-type hydraulic relief valve, which can be infinitely adjusted across a prescribed range using a variable electric input Pressure output is proportional to DC current input. This valve is intended for useas a pressure limiting device in demanding applications.
| Operating Pressure | 240 bar (3500 psi) |
| Maximum Control Current | 1.10 A for 12 VDC coil; 0.55 A for 24 VDC coil |
| Relief Pressure Range from Zero to Maximum Control Current | A: 6.9 to 207 bar (100 to 3000 psi); B: 6.9 to 159 bar (100 to 2300 psi); C: 6.9 to 117 bar (100 to 1700 psi) |
| Rated Flow | 94.6 lpm (25 gpm), DP=13.1 bar (190 psi), Cartridge only, ① to② coil de-energized |
| Maximum Pilot pressure | 0.76 lpm (0.2 gpm) |
| Hysteresis | Less than 3% |
| Flow Path | Free Flow: ① to② coil de-energized; Relieving:① to ②coil energized |
| Temperature | -40 to 120°C with standard Buna N seals |
| Fluids | Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus) |
| Installation Recommendation | When possible, the valve should be mounted below the reservoir oil level. This will maintain oil in the armature preventing trapped air instability. If this is not feasible, mount the valve horizontally for best results. |
| Cavity | IVC10-2; See page 275 |
Materials
| Cartridge | Weight: 0.25 kg. (0.55 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Seal:O-rings and back-up rings. Polyurethane seals recommended for pressures over 240 bar (3500 psi). |
| Standard Ported Body | Weight: 1.06 kg. (0.25 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 240 bar (3500 psi); Ductile iron and steel bodies available; dimensions may differ; Consult Inno. |
| Standard Coil | Weight: 0.32 kg. (0.70 lbs.); Unitized thermoplastic encapsulated, Class H high temperature magnetwire. |
| E-Coi | Weight: 0.41 kg. (0.90 lbs.); Perfect wound, fully encapsulated with rugged external metal shell; Rated up to IP69K with integral connectors. |
| 1. Optional Manual Override, with air release port. |
| 2. Optional waterproof E-Coils rated up to IP69K. |
| 3. 12 and 24 volt coils standard. |
| 4. Industry common cavity. |
The ITS10-26 blocks flow from ① to ② until sufficient pressure is present at ① to open the pilot section by offsetting the electrically induced solenoid force. With no current applied to the solenoid, the valve will relieve at approximately 100 psi. The optional manual override allows the valve to be set when the electric supply is lost. The manual setting is added to the electric setting, so when using the manual override feature to establish a minimum setting, care is required to prevent the system from becoming over-pressurized.
