GBV200

The GKV50 series adapted modular design, the system designer can choose different modules to design a complex system, main valves spool is designed to satisfy with gives user the freedom for choosing different relief valve and different port locations, there are number of different work section modules to choose from, to satisfy with the customer’s needs, different end sections also provide the customer’s needs for return ports or power beyond functions.

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Product Description

GBV200 Proportional valve is a load sensitive and post-pressure compensated proportional valve. For post-pressure compensation valve, it can distribute flow proportionally. Because of the pressure compensation, working flow is independent of load. All the proportional valves in this series have been load sensing and spring return. We can choose different cartridge unit for the main valve body to accomplish different function.This series valve is building with modular design concept, system designer can choose different module to accomplish various complicated system design. Valve spool can provide excellent flow characteristics and low flow force.

Functions

Inlet section with priority valves
Inlet section matches with fixed displacement pump
Inlet section matches with variable displacement pump
P. O. Check Valve
One-way throttle valve
Multiple control operations
Overload protections
Manual proportional valve can provide mechanical positioning, friction positioning
Manual proportional valve can provide floating function
Overload protections
Manual proportional valve can provide mechanical and friction function
Manual proportional valve can provide main valve with float function

Options

Manually controlled proportional valve or mechanically controlled flow sharing proportional valve
Hydraulic pilot controlled proportional valve or hydraulic pilot controlled flow sharing proportional valve
Electrically controlled on/off valve or electrically controlled flow sharing proportional valve
Electro-hydraulic proportional valve or electro-hydraulic flow sharing proportional valve
Mixture proportional valve (sections with proportional flow sharing and pre-pressure compensation)

Ordering Code

Technical Parameters

Max. pressure	P port(Con.)	310 bar	[4495 psi]
	P port(Int.)	350 bar	[5075 psi]
	A/B port(Con.)	310 bar	[4495 psi]
	A/B port(Int.)	350 bar	[5075 psi]
	T port(Static/dynamic)	25/40 bar	[365/580 psi]
Rated ﬂow	P port	100 l/min	[22US gal/min]
Rated ﬂow	A/B port	55 l/min	[12US gal/min]
Spool Stroke	Dead band	±1.5 mm	[±0.06 in]
	Proportional range	±5.0 mm	[±0.2 in]
	Floating position	±7.5 mm	[±0.3 in]
Max. internal leakage at 100bar [1450 psi] and 21mm²[102 SUS]	A/B → T Unbuffered valve	20 cm³/min	[1.85 in³/min]
	A/B → T Buffer valve system setup 30 bar ystem setup 30 bar	25 cm³/min	[2.15 in³/min]
Oil port （Temperature）	Recommend	30→60℃	[86→140 ℉]
	Min.	-30℃	[-22 ℉]
	Max.	90 ℃	[194 ℉]
Ambient temperature		-30→60℃	[-22→140 ℉]