KLSV 18
24Pages

Powering your potential Precision Machinery Company Load Sensing Control Valve

I. Applications / Product Usage 2 IV. Conversion Factors and Definition 5 1. General Information of the Products 6-1. General Dimension (with all option) 19

KLSV Series Load Sensing Valve . Applications / Product Usage The following must be taken into consideration before use. 1. The operating condition of the products 3. The technical information in this catalog shown in this catalog varies depending represents typical characteristics and upon each application. Therefore, the suitability of the products use must be published date. made by the designer of the hydraulic system and/or the person in charge of 4. If the products are used in the following determining the machine's specifications conditions or environments, please consult after...

. Safety Precautions Before using the product, you MUST read the catalog and MUST fully understand how to use the product. To use the product safely, you MUST carefully read all Warnings and Cautions in this catalog. 1. Cautions related to operation - Use safety equipment to avoid the injury when you operate the product. - Pay close attention while handling the product to avoid injury that may be caused by the heavy weight of the product or improper handling posture. - Do not step on, hit, drop or give strong outside force to the product, as one of these actions may cause failure of...

KLSV Series Load Sensing Valve . Handling Precautions 1. Operating fluid and Temperature range 1) Operating fluid Values shown in this catalog are based upon using mineral oil based anti-wear hydraulic fluid. If using special fluid (phosphate ester, water-glycol, fatly acid ester, etc), please consult Kawasaki for instructions prior to use. 2) Viscosity and Temperature range Allowable viscosity and temperature range is shown in the table below. However, to minimize both oil and seal deterioration maximum operating temperature of 60 should be considered. Allowable range Viscosity...

N. Conversion Factors and Definition #• Conversion Factors P = Pump port of the Inlet section LS = Load sensing port of the Inlet section T = Tank port of the Inlet section AP = Differential pressure between P and LS port A, B = Work port A or B of the Spool section Pa, Pb = Pilot pressure port (Hydraulic control) Pi = Pilot pressure port for external supply (Electro-Hydraulic control) Dr = Drain port of the End cover

KLSV Series Load Sensing Valve KLSV18 Load Sensing Control Valve 1. Superior control performance Maximum Pressure Inlet section : 40 MPa (5,800psi) Spool section : 40 MPa (5,800psi) Flow can be controlled independently of the load pressure even in multiple control. Anti-saturation function enables a constant flow rate among each section. Maximum Flow Inlet section : 240 L/min (63.4gallon/min) Spool section : 180 L/min (47.5gallon/min) ( Differential pressure P = 1.5MPa) 2. Energy saving Low pressure loss is achieved with optimum design. General Descriptions High pressure capability enables...

General Information of the Products 1-1 Ordering Code KLSV 18 load sensing control valve number of valve section type of control E : Electro-Hydraulic control H : Hydraulic control 1-2 Configuration The KLSV load sensing valve consists of three sections, one inlet section, a number of spool sections and one end cover. LS port (LS) Tank port (T) Work port (A) Work port (B) Pilot pressure port for external supply (Pi) Drain port (Dr) Main relief valve Reducing valve for internal pilot (Electro-Hydraulic control)

KLSV Series Load Sensing Valve Structure of the Spool section Line relief valve Main spool Manual lever for emergency Pressure compensator Load holding valve Solenoid valve Inlet section Inlet section 1. Main relief valve 2. Unloading valve 3. LS relief valve Spool section Spool section 4. Line relief valve 5. Solenoid valve for Electro-Hydraulic control 6. Manual lever for emergency End cover Other function 7. Reducing valve for internal pilot (Electro-Hydraulic control)

1. General Information of the Products 1-3 Specifications General specifications Model Maximum pressure L/min (gallon/min) Leakage (A, B port 2 Maximum flow cm3/min (in3/min) Pilot pressure for Hydraulic control External pilot pressure for Electro-H draulic control Maximum number of Spool sections Inlet section Spool section At P = 1.5 MPa In case the main relief valve, LS relief valve, and unloading valve are attached. In case two port relief valves and solenoid valves are attached. In case the reducing valve for internal pilot is attached. Electrical specifications Rated current Coil...

KLSV Series Load Sensing Valve Inlet Section 2-1 Function There are Pump port (P), LS port (LS), and Tank port (T) in the Inlet section. The valves (Main relief valve, LS relief valve, Unloading valve) which are needed for the control system are attached. Main relief valve is standard installation. LS relief valve and unloading valve can be attached in combinations shown in the following table according to the control system design. In case the pump delivers minimum standby flow at neutral condition, the unloading valve should be attached. Main relief valve LS relief valve Unloading valve...

2-2 Specifications General specifications P port Maximum pressure T port Maximum flow L/min (gallon/min) Main relief valve Set pressure range Maximum flow Main relief valve setting can be adjusted. Refer to page.18 for "Adjustment instruction". LS relief valve Set pressure range Maximum flow LS relief valve setting can be adjusted. Refer to page.18 for "Adjustment instruction". Unloading valve Cracking pressure Maximum flow

KLSV Series Load Sensing Valve 2-3 Technical Information Main relief valve is attached as standard. Main relief valve can be adjusted to the required pressure. Please specify the requirement with the inquiry form in page.22. Detail for adjustment is shown in page.18. Override characteristic of the main relief valve is shown below. Override Characteristic (Main relief valve) Flow [L/min]