HYDRAFORCE
5278714V
$79.25 USD
- HYDRAFORCE
- Material:5278714V
- Model:EHPR98-G38AS-0-V-12ER
- Summary:PROPORTIONAL PRESSURE REDUCING / RELIEVING CARTRIDGE VALVE
Quantity in stock: 0
The Hydraforce 5278714V (5278714V) is a sophisticated hydraulic valve designed for precise fluid control in various applications. Known as the EHPR98G38XXX, this valve is a direct-acting, spool-type, proportional, pressure reducing relieving valve. It stands out for its third-generation technology as a drop-in, flange-mounted cartridge type valve compatible with mineral-based or synthetic hydraulic fluids with lubricating properties. This model features an integral coil that forms an essential part of the valve structure; however, it is not serviceable separately. The regulated pressure of this valve is directly proportional to the input electrical current within specified pressure ranges. The standard plunger configuration is ideal for applications where inlet pressures do not exceed 34 bar (500 psi), beneficial in scenarios requiring faster response times and increased volume at the control port. Conversely, for higher pressure applications up to 69 bar (1000 psi) with reduced volume at the control port, a damped plunger version is recommended to ensure stability. Key features of the Hydraforce 5278714V include its economical drop-in style which simplifies installation and maintenance, multiple regulated pressure ranges allowing for versatile use across different systems, and quick response time enhancing operational efficiency. Additionally, it offers options such as mounting plates for secure installation, retrofitting capabilities for upgrading existing systems with EHPR98T38 models, and a top-mounted connector that facilitates easier connectivity. A screen option is also available to protect against particulate contamination ensuring prolonged operational life and reduced maintenance needs. Overall, this valve represents a reliable solution designed to meet demanding hydraulic control requirements while maintaining low leakage characteristics.
Unit weight:
0.27 kg (0.60 lb)
Internal wetted surface area:
148 cm² (23.0 in²)
Ratings | Pressure Ratings Pressure rating: 44.8 bar (650 psi) At port 1 34.5 bar (500 psi) At port 2 (standard plunger) 69 bar (1000 psi) At port 2 (damped plunger) 34.5 bar (500 psi) At port 3 Proof pressure: 207 bar (3000 psi) Ports 1, 2 54 bar (780 psi) Port 3 Burst pressure: 249 bar (3625 psi) All ports pressurized Control pressure at maximum control current: 21 bar (305 psi) EHPR98-G38A 25 bar (363 psi) EHPR98-G38B 30 bar (435 psi) EHPR98-G38C Flow Ratings Flow rating: 23 lpm (6 gpm) Maximum internal leakage: 50 ml/min (3.1 in³/min) At 34.5 bar (500 psi) de-energized Other Ratings Cycle life: 10 million cycles Environmental rating: IP69K Corrosion protection: 960 hour salt spray per ASTM B117 Temperature Ratings Operating fluid temperature: -40 to 149 °C (-40 to 300 °F) HNBR -26 to 204 °C (-15 to 400 °F) Fluorocarbon Storage temperature: -40 to 70 °C (-40 to 158 °F) Ambient temperature: -40 to 120 °C (-40 to 248 °F) |
Operating Parameters | Fluids:
Mineral based or synthetic hydraulic fluid with lubricating properties Fluid viscosity range: 7.4 to 420 cSt |
Electrical Parameters | Maximum control current:
1.050 A At 10 V 0.0880 A At 12 V 0.720 A At 14 V 0.525 A At 20 V 0.440 A At 24 V 0.360 A At 28 V Valve inductance: 77 mH 10 V coil 118 mH 12 V coil 165 mH 14 V coil 301 mH 20 V coil 446 mH 24 V coil 680 mH 28 V coil Coil resistance: 4.83 ohm 10 V coil 7.28 ohm 12 V coil 10.05 ohm 14 V coil 18.35 ohm 20 V coil 29.54 ohm 24 V coil 40.36 ohm 28 V coil Hysteresis: 4 % At 120 Hz PWM |
Performance | |
Installation Specifications | Cavity:
VC-G028 Standard configuration Drop-in cavities Installation type: Flange mounted Orientation restriction: None Mounting screw torque: 3 to 4 N-m (2.2 to 3.0 ft-lb) Note: For retro-fitting into older drop-in cavities and other mounting options, see "Mounting-options-for-G3-valves" technical reference Mounting options for G3 Valves |
Order Code | POSITION CODE DESCRIPTION EHPR98-G38DG-H-J-KL-U D Max Regulated Pressure D A 21 bar (305 psi) D B 25 bar (363 psi) D C 30 bar (435 psi) G Screen G BLANK NONE G S 100 Mesh Screen H Line Body H 0 No Body J Seal J G HNBR (Hydrogenated Nitrile Butadiene Rubber) J V Fluorocarbon J P Polyurethane K Coil Voltage K 10 10 VDC K 12 12 VDC K 14 14 VDC K 20 20 VDC K 24 24 VDC K 28 28 VDC L Coil Termination L EJ E-Coil, AMP Jr. L ER E-Coil, Deutsch L EY2A E-Coil, Metri-Pack 150.2 U Mounting Plate U BLANK None U G Standard Single Valve Plate U T Retro-Fit Plate |
Mounting plate:
HF P/N 4595096
Use with standard VC-G028 cavity
HF P/N 4210226
Use with retrofit VC-T011 cavity
Mounting screw:
M5 x 0,8 x 12 mm long, HF P/N: 4002609 (sold separately)
Use with standard VC-G028 cavity
M4 x 00.7 x 12 mm long, HF P/N: 4001015 (sold separately)
Use with retrofit VC-T011 cavity
Seal kit:
SK-G028-X
X=seal option
Seal kit installation instructions
Ported test body:
HF P/N: 71612X0
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