HYDRAFORCE
5278714
$77.25 USD
- HYDRAFORCE
- Material:5278714
- Model:EHPR98-G38AS-0-G-12ER
- Summary:PROPORTIONAL PRESSURE REDUCING / RELIEVING CARTRIDGE VALVE
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Hydraforce directly.***
The Hydraforce 5278714 (5278714) is a sophisticated hydraulic component designed for advanced fluid power applications. This model, known as the EHPR98G38XXX, stands out as a direct-acting, spool-type, proportional, pressure reducing relieving valve. It is engineered specifically for seamless integration with systems using mineral-based or synthetic hydraulic fluids that possess lubricating properties. As a 3rd generation product by Hydraforce, it features a robust design with a drop-in, flange-mounted cartridge style that facilitates easy installation and maintenance. The valve's functionality is enhanced by its ability to regulate pressure proportionally to the input electrical current across specified pressure ranges. This capability ensures precise control in hydraulic systems, making it suitable for diverse applications requiring meticulous pressure adjustments. The integral coil within the valve underscores its efficiency and non-serviceable nature, promoting reliability and durability in operation. Hydraforce has tailored the EHPR98G38XXX for varying operational demands through optional components like different plungers and mounting plates. The standard plunger is ideal for applications with inlet pressures up to 34 bar (500 psi), offering fast response times and increased control port volume. Conversely, for higher inlet pressures up to 69 bar (1000 psi) and reduced control port volume, the damped plunger variant is recommended to maintain stability. Additional features such as low leakage rates, quick response times, retrofit options for EHPR98T38 models, and top-mounted connectors make this valve highly versatile and functional across numerous hydraulic setups. These attributes align with Hydraforce's commitment to providing economical yet powerful solutions for modern hydraulic systems.
The Hydraforce 5278714 (5278714) is a sophisticated hydraulic component designed for advanced fluid power applications. This model, known as the EHPR98G38XXX, stands out as a direct-acting, spool-type, proportional, pressure reducing relieving valve. It is engineered specifically for seamless integration with systems using mineral-based or synthetic hydraulic fluids that possess lubricating properties. As a 3rd generation product by Hydraforce, it features a robust design with a drop-in, flange-mounted cartridge style that facilitates easy installation and maintenance. The valve's functionality is enhanced by its ability to regulate pressure proportionally to the input electrical current across specified pressure ranges. This capability ensures precise control in hydraulic systems, making it suitable for diverse applications requiring meticulous pressure adjustments. The integral coil within the valve underscores its efficiency and non-serviceable nature, promoting reliability and durability in operation. Hydraforce has tailored the EHPR98G38XXX for varying operational demands through optional components like different plungers and mounting plates. The standard plunger is ideal for applications with inlet pressures up to 34 bar (500 psi), offering fast response times and increased control port volume. Conversely, for higher inlet pressures up to 69 bar (1000 psi) and reduced control port volume, the damped plunger variant is recommended to maintain stability. Additional features such as low leakage rates, quick response times, retrofit options for EHPR98T38 models, and top-mounted connectors make this valve highly versatile and functional across numerous hydraulic setups. These attributes align with Hydraforce's commitment to providing economical yet powerful solutions for modern hydraulic systems.
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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