echnical Information Series RM General Description RM Series relief valves limit system pressure by opening to tank when system pressure reaches the valve setting. With D3 size, they can also be configured to limit the '' or '' work port pressures independently. Features Parker Manapak RM sandwich style relief valves can be used to limit pressure in the 'P' port, '' port, or '' port. Valve bodies are manufactured from steel which provide extra strength and durability for longer life. Internal hardened steel components also provide longer life. hree pressure adjustment options are available: slotted screw, knob and locking knob. Specifications RM2 RM3 RM6 Mounting NFP D3, NFP D5, NFP D8, Pattern CEOP 3, CEOP 5, CEOP 8, NG 6 NG 1 NG 25 Minimum 1 ar (15 ) with rated flow, 15 SSU oil, and fluid temperature of 38 C (1 F). 1 Maximum 35 ar 35 ar 35 ar (5 ) (5 ) (5 ) Minimum 3.78 LPM 3.78 LPM 3.78 LPM (1 ) (1 ) (1 ) Maximum 53 LPM 76 LPM 341 LPM (14 ) (2 ) (9 ) Code Range Range 7 1 to 7 ar (15-1 ) 17 1 to 175 ar (15-25 ) 25 1 to 25 ar (15-35 ) 35 1 to 35 ar (15-5 ) Venting Connecting the vent port to tank allows the relief valve to divert flow at minimum pressure. 2 Remote Remote control valve connected to the vent Control port can be used to control the pressure. 3 1 Change in flow, temperature or fluid (SSU) rating will affect valve minimum pressure. 2 Not available on Model RM2. 3 Set main valve pressure 1 ar (15 ) higher than remote pilot. Performance Curves 5 4 273 3 25 2 136 1 ar 341 68 LPM RM2 Override Characteristics 18.9 5 37.9 1 35 spring 25 spring 17 spring 7 spring Min setting VISCOSIY CORRECION FCOR Viscosity (SSU) 75 15 2 25 3 35 4 % of P (pprox.) 93 111 119 126 132 137 141 Curves were generated using 1 SSU hydraulic oil. For any other viscosity, pressure drop will change per chart. 56.8 15 252-1.p65, dd 36
Ordering Information Series RM RM * Manapak Relief Valve Size Code Description 2 NFP D3 Subplate Mounting 3 NFP D5 Subplate Mounting 6 NFP D8 Subplate Mounting Code Description P Relief P to * Relief to * Relief to * RM2 only. Valve Option Range Code K L S djustment ype Knob Locking Knob Slotted Screw with Jam Nut Code Description 7 1 to 7 ar (15 to 1 ) 17 1 to 175 ar (15 to 25 ) 25 1 to 25 ar (15 to 35 35 1 to 35 ar (15 to 45 ) Code V N Seal Compound ype Fluorocarbon Nitrile Gage Port Code ype Omit SE G* SPP * Sizes 2, 3 only. Design Series NOE: Not required when ordering. Manapak olt Kits Size "2" Manapak No. of & Valve olt olt Length Manapaks Combination Kit mm (in) 1 Manapak & D1 K243 73.2 (2.88) 2 Manapak & D1 K225 111.3 (4.38) 3 Manapak & D1 K244 152.4 (6.) 4 Manapak & D1 K245 19.5 (7.5) Size "6" No. of Manapak & Valve olt olt Length Manapaks Combination Kit mm (in) 1 Manapak & D6 K121 133.4 (5.25) 2 Manapak & D6 K122 23.2 (8.) 3 Manapak & D6 K123 273.1 (1.75) 4 Manapak & D6 K124 342.9 (13.5) olt Kits must be ordered separately. Size "3" Manapak D3W-3 No. of & Valve D3DW & olt Length Manapaks Combination D31VW* mm (in) 1 Manapak & D3 K141 88.9 (3.5) 2 Manapak & D3 K142 139.7 (5.5) 3 Manapak & D3 K143 19.5 (7.5) * D31VW with internal pilot and internal drain only. Unit Weight: RM2 RM3 RM6.95 kg (2.1 lbs.) 3. kg (6.6 lbs.) 5.9 kg (13. lbs.) Schematics Option Option P Option 252-1.p65, dd 37
Performance Curves Series RM ar RM3 Override Characteristics ar RM6 Override Characteristics 3 25 25 spring 3 25 25 spring 2 1 136 68 17 spring 7 spring 2 1 136 68 17 spring 7 spring Min setting Min setting LPM 18.9 5 37.9 1 56.8 15 75.7 2 LPM 95 25 189 5 284 75 379 1 7 ar 4.8 RM3 Vent ar RM6 Vent Press vs. 6 4.1 15 1.2 5 3.4 4 3 2.7 2.1 1 6.8 2 1.4 5 3.4 1.7 LPM 18.9 5 37.9 1 56.8 15 LPM 25 25 189 5 284 75 379 1 VISCOSIY CORRECION FCOR Viscosity (SSU) 75 15 2 25 3 35 4 % of P (pprox.) 93 111 119 126 132 137 141 Curves were generated using 1 SSU hydraulic oil. For any other viscosity, pressure drop will change per chart. 252-1.p65, dd 38
Dimensions Series RM2 Inch equivalents for millimeter dimensions are shown in (**) 9. (.35) 169.4 (6.49) 41.4 (1.63) @ Low 34.8 (1.37) @ Max 7. (.28) P 3.5 (.14) op View 45. (1.77) SE 4 4. (1.57) P ody Shown Gage Port Location Varies from ody and ody 3.2 (.13) 3.2 (.13) 128. (5.4) 17.3 (6.7) @ Max. 177. (6.97) @ Low Pilot Cartridge Is Located On he Right Side For P ody nd ody End View Face View P 88. (3.46) 45.2 (1.78) Needed for key removal 26.2 (1.31) ottom View 252-1.p65, dd 39
Dimensions Series RM3 Inch equivalents for millimeter dimensions are shown in (**) 186.6 (7.35) 41.4 (1.63) @ Low 34.8 (1.37) @ Max. P 72.2 (2.84) 11.9 (.47) op View 5. (1.97) 27.8 (1.9) 21.4 (.84) 69.9 (2.75) 45.6 (1.8) 15.9 (.63) VEN 145.3 (5.71) 187.6 (7.39) @ Max. 194.2 (7.65) @ Low Face View End View 45.2 (1.78) Needed for key removal 26.2 (1.31) ottom View 88. (3.46) GGE 19.8 (.78) 93.7 (3.69) ack View SE 4 252-1.p65, dd 4
Dimensions Series RM6 Inch equivalents for millimeter dimensions are shown in (**) 11.1 (.44) 11.1 (.44) P X Y 23. (9.5) 4.8 (1.61) @ Max. 46.6 (1.83) @ Low 57.2 (2.25) GGE 58.8 (2.31) op View 29.9 69.5 (1.18) (2.74) 59.5 (2.34) 6.3 (2.37) 38.9 (1.53) VEN 114.3 (4.5) SE 4 6.4 (.25) 183.4 (7.22) 23.3 (9.7) @ Max 236.6 (9.32) @ Low Face View 6.4 (.25) Locating Pins (2 Places) End View 45.2 (1.78) Needed for key removal 26.2 (1.31) 92.9 (3.66) ottom View 252-1.p65, dd 41