A screw-in, cartridge-style, pilot-operated, spool-type hydraulic relief valve, which can be infifinitely adjusted across a prescribed range using a variable electric input. Pressure output is proportional to DC current input. This valve is intended for use as 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: 207 to 10.3 bar (3000 to 150 psi); B: 138 to 10.3 bar (2000 to 150 psi); C: 69 to 10.3 bar (1000 to 150 psi) |
| Rated Flow | 75.7 Ipm (20 gpm),DP=14.8 bar (215 psi), Cartridge only, ① to ② coil energized |
| Maximum Pilot pressure | 0.76 lpm (0.2 gpm) |
| Hysteresis | Less than 3% |
| Flow Path | Free Flow:① to ②coil energized; Relieving: ① to ②coil de-energized |
| Temperature | -40 to 120C |
| 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: 0.18 kg. (0.4 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: 0.16 kg. (0.35 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: 0.27 kg. (0.60 lbs.); Unitized thermoplastic encapsulated, Class H high temperature magnetwire. |
| E-Coil | Weight: 0.41 kg. (0.90 lbs.); Perfect wound, fully encapsulated with rugged external metal shell; Rated up to IP69K with integral connectors. |
| 1. 12 and 24 volt coils standard. |
| 2. Industry common cavity. |
| 3. Optional waterproof E-Coils rated up to IP69K. |
The ITS10-27 blocks flow from① to ② until sufficient pressure is present at ① to open the valve by overcoming the preset-induced spring force. With no current applied, the valve will relieve at±50 psi of the range maximum. Applying current to the coil decreases the induced spring force, thereby reducing the valve setting.
This valve is ideal for hydraulic fan drive applications.
