Stainless steel pressure relief valve PRFA series

cartridgecorrosion-resistantdirect-operated

This high speed, direct-acting valve is constructed entirely of corrosion-resistant materials that are compliant with NACE specification MR0175/ISO 15156. Minimum cracking pressures are available from 80-3600 psid. An integral safety screen is available for added protection. - NACE Compliant 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 Characteristic | Specification --- | --- Leakage at Minimum Cracking Pressure | 1 mL / Minute Maximum Leakage at Shutoff | 1 mL / Minute Maximum Nominal System Pressure | up to 3000 psi System Peak Pressure | 4500 psi Maximum Screen Hole Size | 0.008 inches Nominal Test Fluid | MIL-PRF-83282 at 85°F Materials: - Body: MP35N - Tube: MP35N - Spring Seat: MP35N - Pin: MP35N - Ball Follower: MP35N - Spring: MP35N or Elgiloy® - Ball: MP35N or Tungsten Carbide - Screen Assembly (Screened Version Only): 316L CRES - Braze (Screened Version Only): - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Replacement Parts & Accessories: - Installation / Extraction Tool Set (CUTA2810114C) - Replacement Pin (PRRX0540350B) Specifications Table (Sample): PART NUMBER | FLOW DIRECTION | SCREEN | MINIMUM CRACKING PRESSURE (psid) | FLOW POINT LOHM RATE | FLOW POINT MINIMUM FLOW (gpm) | FLOW POINT AT (psid) | MINIMUM SHUT-OFF PRESSURE (psid) --- | --- | --- | --- | --- | --- | --- | --- PRFA2819080L | Forward | Unscreened | 80 | 245 | 0.9 | 100 | 68 PRFA2819120L | Forward | Unscreened | 120 | 245 | 1.1 | 150 | 100 PRFA2819200L | Forward | Unscreened | 200 | 235 | 1.5 | 250 | 170 Flow Curve, Cross Section, Dimensional, and Installation Hole Views: - See image gallery for detailed engineering drawings and flow curves. Technical/Performance Notes: - Performance on MIL-PRF-83282 at 85°F Characteristics / Technical Specifications: - Valve Type: High speed, direct-acting pressure relief valve - Compliance: NACE MR0175/ISO 15156 - Cracking Pressure Range: 80-3600 psid - Nominal System Pressure: Up to 3000 psi - System Peak Pressure: 4500 psi Maximum - Diameter: 0.281 inches - Full Open Lohm Rate: 350 Lohms max - Screen Hole Size: 0.008 inches Nominal (screened version) - Materials: MP35N, Elgiloy®, Tungsten Carbide, 316L CRES - Integral safety screen available - Leakage at Minimum Cracking Pressure: 1 mL/min max - Leakage at Shutoff: 1 mL/min max - Test Fluid: MIL-PRF-83282 at 85°F