This proportional electro-hydraulic control p-q valve adopts two electrical loops to control pressure respectively and flow of hydraulic systems. Using very small P to track pressure load and control the pump pressure, it is an energy-saving valve.
Technical specification
Item Model BYL-03-*-* BYLZ-03-*-* BYLZ-06-250-* BYLZ-10-500-*
Maximum Pressure (MPa) 31.5 31.5 31.5 31.5
Maximum Flow (l/min) 160 160 250 500
Flow Range (l/min) 1-160 1-160 2.5-250 5-500
Flow Control Rated Current (mA) 700 600 600 600
Coil Resistance 10 43.5 43.5 43.5
P differential 0.8 0.6 0.7 0.9
Hysteresis (%) <5 <7 <7 <7
Repeatability (%) 1 1 1 1
Pressure Control Pressure Range
(MPa) 16: 1.4-16
25: 1.4-25
31.5: 1.4-31.5
40: 1.4-40 16: 1.4-16
25: 1.4-25
16: 1.5-16
25: 1.5-25
16: 1.6-16
25: 1.6-25
Rated Current (mA) 750 750 750 750
Coil Resistance (Ω) 10 10 10 10
Hysteresis (%) <3 <3 <3 <3
Repeatability (%) 1 1 1 1
Ningbo HOYEA Machinery Manufacture Co., Ltd established in 1993, specializes in hydraulic component design, manufacturing, and hydraulic solution for the customer at home and abroad.
Manufactures electro-hydraulic control system. The corporation, which relies on its own copyrights and patents, advanced technology and management, always keeps improving itself to be better and to impel the continual development of the electro-hydraulic control technology of China.
The corporation relies on scientific talents and tones up innovation ability unremittingly, it takes Zhejiang University national electro-hydraulic control technological research center and the high technological research center of Ningbo electro-hydraulic control as innovation platform. It also utilizes first-class research group, first-class key technology and craft equip predominance, pays attention to the research of new products and high technology actively, fully utilizes the advanced technology of electro-hydraulic and computer frequency conver sion, which is now involving and opening up the new field constantly and acquiring plentiful and substantial fruits. Meanwhile, the company has large quantities of independent technology, multiple research results have filled the domestic gaps. There are dozens of inventions and practical patents. Which build the advanced and high quality technical supporting system of HOYEA, such as Different pressing type complex valve of proportional flow Bidirectional different pressing feedback type of proportional pilot-operated slide valve, Proportional directional valve, Different pressing feedback type of pilot-operated slide valve and so on, The company won the title of High technological enterprise of Zhejiang province, Outstanding enterprises of technological innovation of Zhejing province and Advanced enterprise of top ten scientific and technological cooperation of Ningbo, several products got the Outstanding new products, which was awarded by the national guild.
The company has through ISO9001 quality system authentication, The products cover the whole fields of hydraulic components, and have already been widely applied in each trade. There are routine hydraulic pressure valves, proportional valves, cartridge valves, restrictive valves, explosion isolation proportional solenoid, radial piston eccentric hydraulic motors, internal gear pump, oil cooler, etc. Among them, the proportionalpressing flow complex valve is classified as the national key new products and national-level Torch program projetc.
HOYEA is also an outstanding supplier of the electric equipment products, based on the organically combination of electronic and electric technology with hydraulic technology, it creates more commercial valves for customers.
