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| | | 1DDR35 SERIES DUAL RELIEF VALVE DIRECT ACTING | | |
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| | | 1DDR35 POPPETTYPE | | |
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| | | P1 | | |
| | | P1 | | |
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| | | 3 | | |
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| | | i P2 | | |
| | | P2 | | |
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| | | APPLICATION To protect directional valves and actuators from shock or surge pressures induced by changes in direction or sudden stops which create excessive load conditions. | | FEATURES Soft start and stop with fast acting operation to give maximum protection to expensive actuators. Reduces plumbing to a minimum. | | |
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| | | SPECIFICATIONS Figures based on: Oil Temp = 40°C Viscosity = 40 cSt | | |
| | | OPERATION The dual relief is of the cross line type, where exhaust oil from one line is transferred to the other, negating the need for a separate tank line. It also prevents cavitation when used in conjunction with a closed centre directional valve. For greatest protection the valve should be mounted as close to the actuator or motor as possible. Note for single rod cylinders, anti-cavitation check valves and a separate tank line are necessary. See page number 3-151. PRESSURE DROP | | |
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| | | | | | | | | | Rated Flow | 30 litres/min (8 US GPM) | | | | Max Setting | 350 bar (5000 psi) | | | | Cartridge Material | Working parts hardened and ground steel. External surfaces zinc plated | | | | Body Material | Standard aluminium (up to 210 bar*) Add Suffix '377' for steel option | | | | Mounting Position | Line mounted | | | | Weight | 0.58 kg (1.28 lbs) | | | | Seal Kit Number | SK243 (Nitrile) SK243V (Viton) | | | | Recommended Filtration Level | BS5540/4 Class 18/13 (25 micron nominal) | | | | Operating Temp | -20°C to +90°C | | | | Leakage | 0.3 millilitres/min max (5 dpm) | | | | Nominal Viscosity Range | 5 to 500 cSt | | | | | | | | | |
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| | | FLOW-US GPM 2.5 5_7.5 10 12.5 | | |
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| | | 6000 | | |
| | | 400 350 300 250 200 150 100 50 | | |
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| | | 5000 | | |
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| | | CE < DÛ LLI CE Z) w w LU CE CL | | |
| | | ■fi 1. X □ ■/1 ■/1 1. | | |
| | | 4000 | | |
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| | | 3000 | | |
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| | | 2000 | | |
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| | | 1000 | | |
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| | | 0 | | |
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| | | 20 30 40 50 FLOW LITRES/MIN | | |
| | | 10 | | |
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| | | *For applications above 210 bar please consult our technical department or use the steel body option. | | |
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| | | Integrated Hydraulics Ltd Collins Road, Heathcote Ind. Est., Warwick, CV34 6TF, UK. Tel: +44 (0) 1926 881171 Fax: +44 (0) 1926 315729 Website: www.integratedhydraulics.com | | Integrated Hydraulics Inc 7047 Spinach Drive, Mentor, Ohio 44060, USA Tel: (440) 974 3171 Fax: (440) 974 3170 Website: www.integratedhydraulics.com | | |
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| | | 3-111.C | | |
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