Rexroth Hydro Norma SL 10 GA4-31 Pilot Operated Check Valve – NG10, 315 bar

The Rexroth Hydronorma SL 10 GA4-31 (Series 3X) is a heavy-duty, subplate-mounted hydraulic pilot-operated check valve designed for zero-leakage load holding, directional fluid blocking, and smooth hydraulic decompression. Engineered for demanding industrial hydraulic systems, presses, and clamping units, this valve provides reliable shut-off under continuous high operating pressures up to 315 bar.

Features:

• Brand: Rexroth / Hydronorma (Bosch Rexroth)
• Model / Type: SL 10 GA4-31 (SL 10 GA 4-31 / Series 31)
• Valve Type: Pilot-operated check valve (hydraulically unlockable)
• Nominal Size: Size 10 (NG10 / CETOP 05 / D05)
• Maximum Operating Pressure: 315 bar (4570 PSI)
• Maximum Flow Rate: Up to 80 L/min
• Mounting Interface: Subplate mounting according to ISO 5781-AG-06-2-A / DIN 24340 Form A
• Cracking / Opening Pressure: Approx. 3 to 5 bar (Spring code 4)
• Country of Origin: Germany

Technical Specifications:

• Hydraulic Fluid: Mineral oil-based hydraulic fluids (HL, HLP according to DIN 51524)
• Fluid Temperature Range: -30°C to +80°C
• Viscosity Range: 10 to 800 mm²/s
• Pilot Control: Internal hydraulic pilot operation with optimized area ratio for smooth release
• Seals: NBR (Standard industrial hydraulic seals)
• Weight: Approx. 1.8 kg

Key Benefits:

• Zero-Leakage Sealing: Precision-ground poppet design guarantees tight shut-off, preventing cylinder drift under suspended loads.
• Standardized Subplate Mounting: Conforms to ISO 5781 / CETOP 05 footprint for straightforward retrofitting and interchangeability.
• Smooth Hydraulic Decompression: Prevents hydraulic pressure shocks during valve opening, protecting downstream lines and actuators.
• Heavy-Duty German Engineering: Built with robust cast iron housing for maximum durability in harsh manufacturing environments.

Important Notes:

• VAT invoices available upon request.
• Fast, secure worldwide shipping with tracking and robust packaging.
• Returns accepted within 30 days; buyer pays return shipping.