Hydraulic system pressure relief valve PRFA series

stainless steelhydraulicdirect-operated

This direct-acting valve is ideally suited for hydraulic applications where a fast-opening safety relief valve is needed to prevent system damage from pressure spikes. Minimum cracking pressures are available from 80-3600 psid. An integral safety screen is available for added protection. - Safety Relief Valve - Diameter: 0.281 inches - Full Open Lohm Rate: 350 Lohms max - Nominal System Pressure: Up to 3000 psi - Cracking Pressure Range: 80 to 3600 psi General Performance - Leakage at Minimum Cracking Pressure: 1 Drop / Minute Maximum - Leakage at Shutoff: 20 Drops / Minute Maximum - Restriction at Minimum Recommended Valve Lift: 1500 Lohms Maximum - Nominal System Pressure: up to 3000 psi - System Peak Pressure: 5000 psi Maximum - Screen Hole Size (Screened Version Only): 0.008 inches Nominal - Nominal Weight: Unscreened: 4.5 grams; Screened: 6 grams - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body: 303 CRES - Pin: 303 CRES - Tube: 304 CRES - Spring: 17-7PH CRES - Ball: 440C CRES - Ball Follower: 303 CRES - Spring Seat: 303 CRES - Screen (Screened Version Only): 304L CRES - Braze (Screened Version Only): AMS 4774 - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Replacement Parts & Accessories - CUTA2810114C: Installation / Extraction Tool Set - PRFA2810003A: Replacement Pin Key Product Facts - Direct-acting, fast-opening safety relief valve - Hydraulic applications - Minimum cracking pressures: 80-3600 psid - Integral safety screen available Specifications / Technical Characteristics - Diameter: 0.281 inches - Full Open Lohm Rate: 350 Lohms max - Nominal System Pressure: Up to 3000 psi - Cracking Pressure Range: 80 to 3600 psi - Leakage at Minimum Cracking Pressure: 1 Drop / Minute Maximum - Leakage at Shutoff: 20 Drops / Minute Maximum - Restriction at Minimum Recommended Valve Lift: 1500 Lohms Maximum - System Peak Pressure: 5000 psi Maximum - Screen Hole Size (Screened Version Only): 0.008 inches Nominal - Nominal Weight: Unscreened: 4.5 grams; Screened: 6 grams - Test Fluid: MIL-PRF-83282 at 85°F - Body Material: 303 CRES - Pin Material: 303 CRES - Tube Material: 304 CRES - Spring Material: 17-7PH CRES - Ball Material: 440C CRES - Ball Follower Material: 303 CRES - Spring Seat Material: 303 CRES - Screen Material (Screened Version Only): 304L CRES - Braze (Screened Version Only): AMS 4774 - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate.