DA Pilot Operated Pressure Shut-off Valve - No.1-1

DA Pilot Operated Pressure Shut-off Valve For Sale, Most Competitive Price, Fast Delivery, Custom Service, Wholesale DA Pilot Operated Pressure Shut-off Valve, Made in China, High Quality Products!, China DA Pilot Operated Pressure Shut-off Valve,Hydraulic Flow Control Valve, Supplier, Manufacturer.
DA Pilot Operated Pressure Shut-off Valve

Pressure shut-off valve,Website:http://www.hislohydraulic.com, pilot operated types DA/DAW...L5XPressure control valves type DA/DAW are pilot operated pressure shut-off valves.They are used to charge fluid to accumulator in system, or to unload the low pressure pump in high/low pressure pump system.Pressure shut-off valves basically consist of the main valve (1) with the spool assembly (3), pilot valve (2) with pressure adjustment element and check valve (4). In valves size 10, the check valve (4.1) is built into the main valve (1). In valve sizes 25 and 32, the check valve (4.2) is built into a separate plate installed under the main valve (1).Pressure shut-off valve type DADiverting pump flow from P to A to P to T.The pump delivers flow via check valve (4) into the hydraulic system (P to A). Pressure in port A acts on the pilot control spool (6) via pilot line (5). At the same time, pressure in port P passes to the spring loaded side of the main spool (3) and ball (9) in the pilot valve (2) via orifices (7) and (8). As soon as the setting pressure in the hydraulic system is reached, the ball (9) lifts off against spring (10). Pressure fluid now flows via orifices (7) and (8) into spring chamber (11). The fluid returns to tank either internally via control line (12) in valve type DA .. L5X/ ... or externally via control line (13) in valve type DA .. L5X/ .. Y ... Due to orifices (7) and (8), pressure drop is now presented at the main spool (3). The main spool (3) now lifts off its seat and opens the connection from P to T. The check valve (4) closes the connection from A to P. The ball valve (9) is kept opening by the system pressure via pilot spool (6).Diverting pump flow from P to T to P to A.The area of the pilot spool (6) is 10 % or optionally 17 % greater than the effective area of the ball (9). The effective force on the pilot spool (6) is, therefore, 10 or 17 % greater than the effective force on the ball (9).When the actuator pressure falls to the cut-off p

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NINGBO POWER HYDRAULIC MOTOR CO.,LTD

Address: No.588 DANSHUIHONG ROAD CIXI CITY NINGBO CHINA, ningbo, zhejiang, China, 315300
Tel: 86-574-87193975
Ningbo Power hydraulic motor Co., Ltd. is specialized in manufacturing a variety of hydraulic valve,Website:http://www.hislohydraulic.com, hydraulic motors, power unit, manifold block and whole set of hydraulic system.聽 Ningbo Power has obtained ISO9001 International Quality System Certificate in 2000. In 2001 Ningbo Power was approved provincial new and high technology enterprise and Ningbo patent pilot enterprises title.聽 The valve we design from rexroth, it can be complete instead it, our company have 50000M2 plant, and more then 300 worker, we can supply very fast delivery time and low price.聽 Of course we can design new product for sample or drawing, welcome to inquiry us http://www.hislohydraulic.com

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