Pilot operated check valves 4CG unctional Symbols Model Code External 外部ドレン形 drain type ( 3 )- 4 C G - 3 -( D ) - -( G E 5 )- J -( S 1 )- J 1 3 4 5 6 7 Internal 内部ドレン形 drain type Valve can function to provide free flow in one direction and also flow in reverse direction with external pilot pressure. Decompression type with poppet opening before main valve available. 6 1 Hydraulic fluid Omit: mineral oil based fluid, water-glycol based fluid 3: phosphate ester Pilot operated check valves 4CG: gasket mounting 3 Size Refer to Specifications. 4 Decompression function Omit: standard D: decompression type 5 Cracking pressure :.1 MPa C:.53 MPa : 1.5 MPa 6 Design no. See the right table. 7 Drain Omit: internal drain GE5: external drain Control code See the right table. Model 形 Code 式 デザイン番号 Design No. Control 管理記号 Code 4CG-3 S1 4CG-3-D S1 4CG-3-GE5 1 Omitted 無記号 4CG-3-D-GE5 1 Omitted 無記号 4CG-6 S1 4CG-6-D S1 4CG-6-GE5 1 Omitted 無記号 4CG-6-D-GE5 1 Omitted 無記号 4CG Omitted 無記号 4CG-D Omitted 無記号 4CG-GE5 Omitted 無記号 4CG-D-GE5 S
6 Specifications 大きさ最 Max. 高定格流量 Rated クラッキング Cracking Model Working Weight 質量形式 Size Code の呼び Pressure 使用圧力 low 圧 Pressure 力 L/min kg MPa L/min MPa 4CG-3 3 5 3.5 4CG-6 6 1 See 15 形式参照 Model 7. Code 4CG 1 315 1 Characteristics Curve (at mm /s) (typical examples) Pressure Drop Characteristics (free flow direction, cracking pressure.1 MPa) 4CG-3-4CG-6-4CG- 圧力降下 Pressure Drop MPa 5. 4. 3.. MP a 1. 4CG-3-4CG-6-5 1 15 流量 low LL/min / min Notes on Operation 5 3 4CG- In case of back pressure in port caused by counterbalance valve or flow control valve, high pilot pressure will be necessary to open the valve. If the high pilot pressure Px as calculated from the equation cannot be achieved, use external drain type. Pilot Pressure Pilot pressure (for decompression type, pressure to actuate the small poppet) necessary to open valve and allow flow from to can be calculated from the following: P : pilot pressure P: side pressure P: side pressure PC: cracking pressure Model 形 Code 式 計 ormula 算式 4CG-3 P >.(P +P C )+.7P 4CG-3-D P >.3P +.97P +.P C 4CG-3-GE5 P >.(P +P C )-.3P 4CG-3-D-GE5 P >.3P +.P +.P C 4CG-6 P >.9(P +P C )+.71P 4CG-6-D P >.P +.9P +.9P C 4CG-6-GE5 P >.9(P +P C )-.4P 4CG-6-D-GE5 P >.P +.3P +.9P C 4CG P >.39(P +P C )+.61P 4CG-D P >.1P +.99P +.39P C 4CG-GE5 P >.39(P +P C )-.14P 4CG-D-GE5 P >.1P +.4P +.39P C Sudden opening of actuator line pressure may result in shock. In this case use decompression type valve where the small poppet opens before the main valve to bleed port pressure. Mounting olts (JIS 1176, Strength Class 1.9) Valve 弁形式 Model 六角穴付きボルト Hex Socket olts Metric メ-トルねじ Threadbolts ユニファイねじ Unified Thread 本数 Qty 4CG-3 M1 7 3/6UNC 69. 4 4CG-6 M1 5 3/6UNC.5 4 4CG M1 11 3/6UNC 17.9 6 Mounting bolts must be ordered separately. Mounting bolt tightening torque 4CG-3/6/1: 54~66 N m Subplate Valve 弁形式 Model 4CG-3 4CG-6 4CG 接続口径サブプレ-ト形式 Connection Port Subplate Diameter Rc Rc RGM-3-J-J 3/ RGM-3-J-J 1/ RGM-6-J-J 3/4 RGM-6-J-J 1 RGM-J-J 1/4 RGM-J-J 1/ Subplate must be ordered separately. Hex socket bolts for mounting valve included. (Unified thread) See page R6-3 for dimensions.
Dimensions 4CG-3 4-M1, 17 deep or 64 port (drain) 3/6UNC, 17 deep 1. 6 -φ14 66 7. 5. 57 66. 7 7 7 33 4. port port 1 1. Internal drain type: 11 External drain type: 1 (pilot) Internal drain type: External drain type: Rc1/ 1. 5 4. 9 9 ø6.4 locating pin 65 13 4-ø11 hole, port (pilot) 36. 6 55. 5 6. 4 66 -φ4. 4. 9 35. 1. 5 7. ø7.1, deep 6-3 4CG-6 4-M1, 19 deep or. 5 port (drain) 3/6UNC, 16 deep -φ3 79 4. 73 7 79 4. 1 1 39. 7 port port 11 6. 3 11. 3 4-ø11 hole, 11. 3 -φ4. 6. 4 ø7. 1, deep 4. 3 17 port (pilot) 6 3. 49. 39. 7. 6 15. Internal drain type:. 5 External drain type: 19 Pressure gauge port (pilot) ø6. 4 locating pin 41 1. 6 5. 6. 4 79
Dimensions 4CG port (drain) 6-M1, deep or 15 port 3/6UNC, 1 deep 1. 5 -φ9 96. 9. 95 96. 11 11 4. 4 1. 6 3. 9 6-4 4 1. 1. 5 4. 1 44. 5 15 194 1. 6 port 6-ø11 hole, port (pilot) -φ4. 4. 1 67. 4 59. 5 4 4. 5 1. 4 16. 6 ø7.1, deep 14 (pilot) ø6.4 locating pin 5. 9 6. 4 11
Construction 1 3 デコンプレッション形 Decompression type 5 6 Standard 標準形 type 4 5 6 7 1 *1 6-5 1 11 13 9 * * 1 13 O-ring 4CG-3 照号部品番号規格 No. Part No. Standard 3 791119 S561(NR,Hs9) 1 1 1 7911519 S5615(NR,Hs9) 11 7911119 S5611(NR,Hs9) 1 14 7917 S56-(NR,Hs7) 1 15 79119 S56(NR,Hs9) 1 19 79419 S56-4(NR,Hs9) 1 1 14 19 15 16 17 17 14 19 15 16 4CG-6 照号 No. 部品番号 Part No. Standard 規格 3 791519 S565(NR,Hs9) 1 1 1 791619 S5616(NR,Hs9) 11 7911419 S5614(NR,Hs9) 1 14 79417 S56-4(NR,Hs7) 1 15 791119 S561(NR,Hs9) 1 19 7919 S56-(NR,Hs9) 1 1 1 内部ドレン形 Internal drain type Note: *1 7 seat inserted in body * plug is used only in the 4CG valve. 1 External 外部ドレン形 drain type 4CG 照号部品番号規格 No. Part No. Standard 3 79319 S563(NR,Hs9) 1 1 1 7919 S56(NR,Hs9) 11 7911419 S5614(NR,Hs9) 1 1 7911317 S5613(NR,Hs7) 1 14 79117 S561(NR,Hs7) 1 1 15 791519 S565(NR,Hs9) 1 1 19 79319 S563(NR,Hs9) 1 1