CSBF Manual Proportion/Volume/Direction Compound Valve

Advantages of Using CSBF Manual Proportion/Volume/Direction Compound Valve

• This valve is a three-position, four-way directional control valve with pressure compensation, proportional flow control, and safety protection.
• The operation handle of the valve and the flow-adjusting mechanism perform synchronized actions.
• It supports infinitely variable speed and offers excellent capability for inverting and governing speed.
• It is widely used in shipping machinery and hydraulic systems of other machinery.
• When adapted to a slewing arrangement, it enables remote control operation.
• This product has been granted national patents with patent numbers ZL02318735.2 and ZL02220987.5.

Main Technical Parameters of CSBF Manual Proportion/Volume/Direction Compound Valve

Model	Nominal Diameter(mm)	Nominal Flow(L/min)	Nominal Pressure（MPa）	Safety Valves Pressure Range （MPa）	Handle Operating Force	Mid-position Slide Valve Function
CSBF-G20	20	120	25	5 – 25	≤40	MOYHKP
CSBF-G25	25	200
CSBF-G32	32	300
CSBF-G40	40	450
CSBF-G50	50	700
CSBF-G65	65	1200

Fault and Troubleshooting for CSBF Manual Proportion/Volume/Direction Compound Valve

No.	Symptom	Caused  Reason	Maintenance Method
1	Safety valve pressure either low-rise or not low	Ⅰ.The spring is broken /jammed or uninstalled. Ⅱ. The poppet valve’s port is not well sealed.	Ⅰ.The spring is broken /jammed or uninstalled. Ⅱ. The poppet valve’s port is not well sealed.
2	Pressure compensation device malfunction	Ⅰ.Disassemble for cleaning. Ⅱ.Adjust the spring to make the differential pressure be a nominal rating	Ⅰ.Disassemble for cleaning. Ⅱ.Adjust the spring to make the differential pressure a nominal rating
3	Ⅰ.The spring is broken /jammed or uninstalled. Ⅱ. The poppet valve’s port is not well sealed.	Dust blocking the valve’s core	Disassemble for cleaning.
4	Much outside and inside leaking	Ⅰ.Every valve core’s joint frayed. Ⅱ.O type ball seat is broken	Main valve core reversing does not work

Outline Overall and Installing Dimensions of CSBF Manual Proportion/Volume/Direction Compound Valve

Drift dia.	Outline overall and installing dimensions
DN	D	X	W	L	F	E	d	H	H1	H2	H3	H4	H5	H6
20	27.2	45.5	150	170	120	100	4-φ9	445	107	68	77	68	32	19
25	34.5	56	195	202	166	140	4-φ14	632	138	84	96	84	33	19
32	43.2	60.1	192	204	144	120	4-φ11	635	153	88	112	88	35	21
40	49.5	73	212	223	170	140	4-φ11	665	160	103	124	103	40	23
50	62	83.4	240	262	180	150	4-φ13	755	208	124	146	124	45	26

Slewing Device Matched with CSBF Manual Proportion/Volume/Direction Compound Valve

Slewing device can matches with manual proportion/volume/direction compound valve, and replace the manual to carry out long-distance remote control.

1) Main Technical Parameter

 Working Pressure 0.3-1.3Mpa

 Output torque 12N·m (when P=1MPa)

2) Structure and Operating Principle

 Function symbol is shown in figure

Slewing device is a piston type rotation hydraulic cylinder, it is consisting of hydraulic cylinder and rotation mechanism. Rotation mechanism is consisting of rack-and-pinion, there’s a piston with a rack in the middle part of the hydraulic cylinder to drive the pinion shaft which mesh with it. when it is working, the control-oil pressure flows into A through shuttle valve, moves piston to do rectilinear motion, rack in the middle of piston to drive gear shaft to rotate, and makes the linked fork swing one angle to make the operating handle of manual proportion/volume/direction compound valve leans an angle to achieve long distance remote control. The return oil in hydraulic cylinder goes back to oil cylinder through B by shuttle valve. On the other hand, operating handle leans to another direction.

 3) Outside measurement and installing

 Outside measurement shown in figure, when installed, unburden the A side flange of manual proportion/volume/direction compound valve, and install spare flange of slewing device, then install the slewing device.