DH6/10

DH6/10 DH6/10

07.11.2014 Views

Pilot operated check valve (1) Sub-plate Valve type Sub-plate type Connection diameter Mass When you use a sub-plate, please place an order for the above sub-plate type. For the dimension drawing, refer to pages 6 and 7 of the appendix. Accessories Mounting bolt Type Hexagon socket head cap thread Quantity Tightening torque Nm (kgfcm) Pressure drop characteristics (viscosity 36 mm 2 /s (cSt)) CH/CHY6810 CH1520CHY15 CHY20P Amount of pressure drop (MPa Flow rate (L/min) Amount of pressure drop (MPa Flow rate (L/min) CHY2530CHY20G(R) CH2530 Amount of pressure drop (MPa Flow rate (L/min) Precautions in use Method of obtaining minimum required pilot pressure (refer to symbols in the structural drawing) In the case of CH In the case of CHY A2: Pressure receiving area of lifting piston (cm 2 ) A3: Pressure receiving area of lifting piston rod (cm 2 ) Nominal dimension Method of using internal drain type and external drain type When port A is directly connected to the tank during reverse free flow, the internal drain type is generally used. However, if back pressure is applied to port A, be sure to use the external drain type. Pst: Minimum required pilot pressure (MPa) P1: Load pressure (pressure of port B) (MPa) P2: Back pressure (pressure of port A) (MPa) A1: Pressure receiving area of poppet (cm 2 ) (Note) For minimum required pilot pressure (Pst), low pilot operated check valves for pilot pressure lower than Pst obtained from the above (pilot pressure equivalent to approximately 1/8 of load pressure) are also available (KSV/KSL type). If you need the above valve, please contact us. 1-74

Y B A B A X X ■Dimension drawing ●CH/CHY (G screw connection type) F 2 Q CH*G 1 C C M N G 2-φD 2-E A 15 1 X B In the case of 6 to 10 only G1/4 H J φ25 K L 51.5 (54.5 in the case of 10) G 2-φD 2-E 1 Q A Y CHY*G X Y B 15 1 P Y B A B A X X C G1/4 (both X and Y ports) In the case of 15 to 30 only H J 70.5 φ25 K L Pilot operated check valve (1) 2-φ11 through hole A B 2-φ11 through hole A B Type Nominal dimension 6 A 66.5 B C D E F G H J K L M N 85 40 25 G 1 4 42 27.5 18.5 10.5 33.5 49 80 116 P 18 Q 15 8 66.5 85 40 32 G 3 8 42 27.5 18.5 10.5 33.5 49 80 116 18 15 CH 10 15 66.5 79.5 85 100 40 58 38 45 G 1 2 G 3 4 42 60 27.5 36.5 18.5 17.5 10.5 13 33.5 50.5 49 65.5 80 95 116 135 18 20 16 17 20 25 79.5 97 100 120 58 52 73 63 G 1 G1 1 4 60 75 36.5 54.5 17.5 15.5 13 20.5 50.5 71.5 65.5 87.5 95 115 135 173 20 29 18 24 30 97 120 73 65 G1 1 2 75 54.5 15.5 20.5 71.5 87.5 115 173 29 24 6 66.5 85 40 25 G 1 4 42 23.5 16.5 12.5 35.5 51 80 116 18 15 8 66.5 85 40 32 G 3 8 42 19 16.5 12.5 35.5 51 80 116 18 15 10 66.5 85 40 38 G 1 2 42 19.5 13.5 15.5 38.5 54 80 116 18 16 CHY 15 20 74 74 120 120 73 73 45 52 G 3 4 G 1 75 75 54.5 54.5 15.5 15.5 20.5 18 84 84 97.5 97.5 125 125 183 183 29 29 17 18 25 30 74 74 120 120 73 73 63 65 G1 1 4 G1 1 2 75 75 54.5 54.5 15.5 15.5 18 18 84 84 97.5 97.5 125 125 183 183 29 29 24 24 ●CH/CHY (R screw connection type) C E A 2 L M 2-D (both A and B ports) F A CH*R X B A Y CHY*R In the case of 6 to 10 only Q 12.5 Q 12.5 C Rc1/4 H J K 2-D (both A and B ports) P F C X Y B H Rc1/4 (both X and Y ports) 70.5 In the case of 15 to 30 only J N G K G 2-φ11 through hole A B 2-φ11 through hole A B Type Nominal dimension 6 A 66.5 B C D E F G H J K L M N 85 40 Rc 1 4 42 27.5 18.5 10.5 33.5 49 80 116 18 P ー Q 12.5 8 66.5 85 40 Rc 3 8 42 27.5 18.5 10.5 33.5 49 80 116 18 ー 14 CH 10 15 66.5 79.5 85 100 40 58 Rc 1 2 Rc 3 4 42 60 27.5 36.5 18.5 17.5 10.5 13 33.5 50.5 49 65.5 80 95 116 135 18 20 ー ー 17 19 20 25 79.5 97 100 120 58 73 Rc 1 Rc1 1 4 60 75 36.5 54.5 17.5 15.5 13 20.5 50.5 71.5 65.5 87.5 95 115 135 173 20 29 ー ー 22 24.5 30 97 120 73 Rc1 1 2 75 54.5 15.5 20.5 71.5 87.5 115 173 29 ー 25.5 6 66.5 85 40 Rc 1 4 42 23.5 16.5 12.5 35.5 51 80 116 18 51.5 12.5 8 66.5 85 40 Rc 3 8 42 19 16.5 12.5 35.5 51 80 116 18 51.5 14 10 66.5 85 40 Rc 1 2 42 19.5 13.5 15.5 38.5 54 80 116 18 54.5 17 CHY 15 20 74 74 120 120 73 73 Rc 3 4 Rc 1 75 75 54.5 54.5 15.5 15.5 20.5 18 84 84 97.5 97.5 125 125 183 183 29 29 ー ー 19 22 25 30 74 74 120 120 73 73 Rc1 1 4 Rc1 1 2 75 75 54.5 54.5 15.5 15.5 18 18 84 84 97.5 97.5 125 125 183 183 29 29 ー ー 24.5 25.5 1-75

Pilot operated check valve (1)<br />

Sub-plate<br />

Valve type Sub-plate type Connection diameter Mass<br />

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When you use a sub-plate, please place an order for the above sub-plate type.<br />

For the dimension drawing, refer to pages 6 and 7 of the appendix.<br />

Accessories<br />

Mounting bolt<br />

Type Hexagon <br />

socket head cap thread Quantity Tightening torque Nm (kgfcm)<br />

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Pressure drop characteristics (viscosity 36 mm 2 /s (cSt))<br />

CH/CHY68<strong>10</strong><br />

CH1520CHY15<br />

CHY20P<br />

Amount of pressure drop (MPa<br />

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Flow rate (L/min)<br />

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Amount of pressure drop (MPa<br />

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Flow rate (L/min)<br />

CHY2530CHY20G(R)<br />

CH2530<br />

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Amount of pressure drop (MPa<br />

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Flow rate (L/min)<br />

Precautions in use<br />

Method of obtaining minimum<br />

required pilot pressure<br />

(refer to symbols in the structural drawing)<br />

In the case of CH<br />

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In the case of CHY<br />

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A2: Pressure receiving area of lifting piston (cm 2 )<br />

A3: Pressure receiving area of lifting piston rod (cm 2 )<br />

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Nominal dimension<br />

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Method of using internal drain type<br />

and external drain type<br />

When port A is directly connected to the tank during<br />

reverse free flow, the internal drain type is generally<br />

used. However, if back pressure is applied to port A,<br />

be sure to use the external drain type.<br />

Pst: Minimum required pilot pressure (MPa)<br />

P1: Load pressure (pressure of port B) (MPa)<br />

P2: Back pressure (pressure of port A) (MPa)<br />

A1: Pressure receiving area of poppet (cm 2 )<br />

(Note) For minimum required pilot pressure (Pst), low pilot<br />

operated check valves for pilot pressure lower than<br />

Pst obtained from the above (pilot pressure equivalent<br />

to approximately 1/8 of load pressure) are also available<br />

(KSV/KSL type). If you need the above valve, please<br />

contact us.<br />

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<br />

1-74

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